Corrosion protection Explosion protection

Corrosion protection Explosion protection Edition 09 01

Description corrosion- and explosion protection Table of contents General information Description corrosion protection... 2 Description explosion protection... 3 Over-view explosion-proof solenoids... 6 Product over-view and/or data sheets Solenoid coils Solenoid coil square 45 Ex d II C - type MKY45...1.1-183 Solenoid coil square 45 Ex ia II C - type M.Z45-100...1.1-185 Solenoid operated spool valves direct operated Explosion proof solenoid operated spool valve EEx em II NG4-Mini BEX4x4-S1788... 1.3-21 Explosion proof solenoid operated spool valve EEx d II C NG4-Mini BEXd4x4-S1788... 1.3-22 Explosion proof solenoid operated spool valve Ex d II C NG4 BEXd4x4...1.3-23 Explosion proof solenoid operated spool valve EEx em II NG6 AEX4x6-S1788...1.3-31 Explosion proof solenoid operated spool valve EEx d II C NG6 AEXd4x6-S1788...1.3-32 Explosion proof solenoid operated spool valve Ex d II C NG6 AEXd4x6...1.3-33 Explosion proof solenoid operated spool valve Ex ia II C NG6 AEXi4x6-100/T6... 1.3-40 Spool valves pilot operated Solenoid operated spool valve pilot operated explosion proof AEXVP4x10-S1788... 1.9-35 EEx em II NG10 Solenoid operated spool valve pilot operated explosion proof AEXdVP4x10-S1788... 1.9-36 EEx d II C NG10 Solenoid operated spool valve pilot operated explosion proof AEXdVP4x10...1.9-37 Ex d II C NG10 Proportional spool valves Proportional spool valve ex-proof EEx em II NG6 WDCFA06...1.10-85 Proportional spool valve ex-proof EEx d II C NG6 WDBFA06...1.10-86 Proportional spool valve ex-proof Ex d II C NG6 WDBFA06...1.10-87 Poppet valves Solenoid poppet valve cartridge ex-proof EEx d II C M22 direct operated SDXPM22... 1.11-2062 Solenoid poppet valve cartridge ex-proof EEx em II M22 direct operated SDYPM22... 1.11-2063 Solenoid poppet valve cartridge ex-proof EEx em II M22 pilot operated SVXPM22... 1.11-2067 Solenoid poppet valve cartridge ex-proof EEx d II C M22 pilot operated SVYPM22... 1.11-2068 Solenoid poppet valve cartridge ex-proof EEx em II M33 pilot operated SVXPM33... 1.11-2077 Solenoid poppet valve cartridge ex-proof EEx d II C M33 pilot operated SVYPM33... 1.11-2078 Solenoid poppet valve explosion proof flange constr. EEx em II NG4-Mini BEX2204 S1788... 1.11-3130 Solenoid poppet valve explosion proof flange constr. EEx d II C NG4-Mini BEXd2204 S1788... 1.11-3131 Solenoid poppet valve explosion proof flange constr. Ex d II C NG4-Mini BEXd2204... 1.11-3132 Solenoid poppet valve explosion proof flange constr. EEx em II NG6 AEX2206 S1788... 1.11-3141 Solenoid poppet valve explosion proof flange constr. EEx d II C NG6 AEXd2206 S1788... 1.11-3142 Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Page 1 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change Edition 09 09 CH-3714 Frutigen

Description corrosion- and explosion protection Proportional pressure relief-, pressure reducing valves Pressure relief cartridge pilot operated explosion proof EEx em II M22 BVCPM22...2.3-534 Pressure relief cartridge pilot operated explosion proof EEx d II C M22 BVBPM22...2.3-535 Pressure relief cartridge direct operated explosion proof EEx em II M22 BDCPM22...2.3-544 Pressure relief cartridge direct operated explosion proof EEx d II C M22 BDBPM22...2.3-545 Pressure relief cartridge direct operated explosion proof Ex d II C M22 BDBPM22...2.3-546 Pressure reducing cartridge pilot operated explosion proof EEx em II M22 MVCPM22...2.3-634 Pressure relief valve flange and sandwich construction NG4-Mini B.P.A04...2.3-720 Pressure relief valve flange and sandwich construction NG6 B.P.A06...2.3-740 Pressure relief valve flange and sandwich construction NG10 B.P.A10...2.3-760 Pressure reducing valve flange and sandwich construction NG4-Mini MVP.A04...2.3-820 Pressure reducing valve flange and sandwich construction NG6 MVP.A06...2.3-840 Pressure reducing valve flange and sandwich construction NG10 MVP.A10...2.3-860 Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Page 2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change Edition 09 09 CH-3714 Frutigen

Description corrosion- and explosion protection Description corrosion protection Applications Applications in corrosive environments often demand additional mesures to improve surfaces of valve bodies and base plates. Wandfluh over the years has developed several types and degrees of surface protection for applications in: Shipbuilding Offshore industries Petrochemical industry Mining and tunnel building Delivery program K1 and K4: All valves and base plates of the standard Wandfluh program are available with K1 and K4 protection. The outside dimensions and the performance characteristics corre-spond to those of the standard program. K9 The majority of the valves and base plates from the Wandfluh program are available with K9 protection. The performance characteristics as well as the dimensions may slightly differ from the standard program. Type code standard code Definition K1 - K1 - K4 - K9 Increased surface protection zinc or paint coating of the external parts fixing screws zinc coated Solenoid zinc coated Body two-component lacquer Name plate aluminium Fixing screws zinc coated Cover zinc coated Definition K4 Increased surface protection zinc coating of the external parts fixing screws made of stainless steel Fixing screws stainless steel Manual override stainless steel Option: The version -Z319 is to be utilised in applications, where no aluminium must be employed Definition K9 Solenoid zinc coated Knob aluminium Cartridge body zinc coated Sandwich body zinc coated Excellent surface protection all external parts made of stainless steel AISI 316L fixing screws made of stainless steel no aluminium Solenoid K7 Fixing screws stainless steel Manual override stainless steel Body zinc coated Name plate aluminium Plug VSTI zinc coated Body stainless steel Fixing screws stainless steel Cover zinc coated Name plate aluminium Fixing screws stainless steel Cover stainless steel Knob stainless steel Cartridge body Sandwich body stainless steel stainless steel Fixing screws zinc coated Manual override stainless steel Plug stainless steel Knob aluminium Sandwich body zinc coated Plug VSTI zinc coated Bonded seal stainless steel Protection class K7: zinc coated, olive passivated plus primer plus black epoxy paint Cartridge body zinc coated Name plate aluminium Option: The version -Z319 is to be utilised in applications, where no aluminium must be employed REmark In all versions, the internal components are manufactured out of standard materials and are intended for mineral oil operating media. Special primer coatings are only additionally available for assembled control units. Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Page 3 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change Edition 09 09 CH-3714 Frutigen

Description corrosion- and explosion protection Description explosion protection Guideline 94/9/EG (ATEX Appliances and protection systems for the purpose of being used in areas subject to explosion hazard. Fields of Application Group II Electric operating equipment for underground (mine workings subject to fire-damp ha- Group I zard Electric operating equipment for all areas subject to explosion hazard, with the exception of underground (mine workings subject to fire-damp hazard (Devices for this field of application are not available from Wandfluh Encompasses areas, in which during normal operation an atmosphere capable of exploding is not normally present or only for a short time period in the form of a cloud consisting of inflammable dust in the air. For this zone, devices of the category 3 (or 1 resp. 2 are ne- Zone 0 (for G Zone 1 (for G Zone 2 (for G Zone 20 (for D Zone 21 (for D Zone 22 (for D cessary. Encompasses areas, in which a hazardous atmosphere capable of exploding is continuously present or present over a long time period. For this zone, devices of the category 1 are necessary. Encompasses areas, in which it has to be anticipated, that a hazardous atmosphere capable of exploding is present occasionally. For this zone, devices of the category 2 (or 1 are necessary. Encompasses areas, in which it has to be anticipated, that a hazardous atmosphere capable of exploding is present only rarely and then only for a very short time period. For this zone, devices of the category 3 (or 1 resp. 2 are necessary. Encompasses areas, in which an atmosphere capable of exploding is present continuously, for a long time period or frequently in the form of a cloud consisting of inflammable dust in the air. For this zone, devices of the category 1 are necessary. Encompasses areas, in which during normal operation an atmosphere capable of exploding occasionally may occur in the form of a cloud consisting of dust in the air. For this zone, devices of the category 2 (or 1 are necessary. G (for group II D (for group II Gas-, steam- / vapour-, mist- and air mixtures Dust Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Page 4 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change Edition 09 09 CH-3714 Frutigen

Description corrosion- and explosion protection M (for group I Underground (mine workings (not available from Wandfluh Marking of devices (exposed to flammable gas / vapour concentrations Types of protection Devices with older certifications Devices with more recent certifications EEx ia Intrinsically safe EEx ia Intrinsically safe EN 50014 / EN 50020 / EN 50284 EN 50014 / EN 50020 / EN 50284 EEx e Enhanced safety EEx e Enhanced safety EN 50014 / EN 50019 EN 50014 / EN 50019 EEx m Cast encapsulation EEx m Cast encapsulation EN 50014 / EN 50028 EN 50014 / EN 50028 EEx d Flameproof encapsulation EEx d Flameproof encapsulation EN 50014 / EN 50018 EN 50014 / EN 50018 Gas groups A, B, or C Classification of the gases and steams/vapours in accordance with their limit fission values and the ratio of their minimum ignition current. See chart below. - C includes A and B - Indication only in the case of Ex ia and Ex d Temperature classes Examples: Classification of gases and vapours according to their ignition temperature. See chart below. T4 Temperature class for maximum surface temperatures of 135 C T6 Temperature class for maximum surface temperatures of 85 C Classification of gases in temperature classes and groups T1 450 C T2 300 C T3 200 C T4 135 C T5 100 C T6 85 C I Methane II A Acetone Ethane Ethyl acetate Ammonium Benzol (pure Acetic acid Carbon monoxyde Methanol Propane Toluene Ethyl alcohol i-amylacetate n-butane n-butyl alcohol Gasolines Diesel fuel Air craft fuel Fuel oils n-hexane Acetaldehyde II B City gas (lighting gas Ethylen Hydrogen sulphide Ethyl-ether II C Hydrogen Acetylene Carbon disulphide Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Page 5 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change Edition 09 09 CH-3714 Frutigen

Description corrosion- and explosion protection Marking of devices (Exposed to flammable dust clouds Type of protection td Protection by the housing EN 61241-0 / EN 61241-1 Protection class IPxx IP-Code according to EN 60 529 Maximum surface temperature Txxx C The maximum surface temperature of a device is not to exceed 2 / 3 of the ignition temperature of the corresponding dust cloud. Exemple: for T130 C the ignition temperature of the dust cloud is not to be lower than 195 C Explanation of marking on Ex proof solenoids Example 1 II 2 G Ex d II C T4 Ta -40... +90 C Application in gas and vapour mixtures G Application in group II, subdivision C Device for category 2 (zones 1 and 2 Flameproof enclosure d Temperature class T4 Permissible ambient temperature range Ta Example 2 II 1 G Ex ia II C T6 Ta -20... +45 C Application in gas and vapour mixtures G Application in group II, subdivsion C Device for category 1 (zones 0, 1 and 2 Intrinsic safety ia Temperature class T6 Permissible ambient temperature range Ta Example 3 II 2 G Ex em II T4 Ta -20... +40 C II 2 D Ex td A21 IP65 T130 C Application in gas and vapour mixtures G Application in dust D Application in group II Application in group II Device for category 2 (zones 1 and 2 Device for category 2 (zones 21 and 22 Increased safety e Protection by the housing td Additionally (partially moulded m In accordance with procedures for zone 21 A21 Temperature class T4 Protection class IP65 Permissible ambient temperature range Ta Maximum surface temperature T130 C One and the same solenoid may be certified for different ambient temperature ranges Ta. In this respect, attention has to be paid that it is certified for differing temperature classes. Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Page 6 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change Edition 09 09 CH-3714 Frutigen

Description corrosion- and explosion protection Over view explosion-proof solenoids II 2 G EEx em II T4 II 2 D IP65 T130 C II 2 G EEx em II T4/T6 II 2 D IP65 T110 C/80 C For devices of the category 2 (Zone 1 and 2 resp. Zone 21 and 22 Acc. to EN 50 014, EN 50 019 and EN 50 028 (Gas EN 50281-1-1 (Dust EC-type examination certificate PTB 01 ATEX 2129 X Terminal box with cable entry 6 12 mm Protection class IP65 / IP67 (acc. to EN 60 529 6 250 VDC 12 250 VAC Nominal power 17 W (DC (Execution T4: EEx em II T4 / IP65T130 C Ta -20 +40 C (T1 T4 Nominal power 7 W (DC (Execution T6: EEx em II T4 / IP65T110 C Ta -20 +70 C (T1 T4 EEx em II T6 / IP65T80 C Ta -20 +40 C (T1 T6 II 2 G EEx d II T4 II 2 G EEx d II C T4/T5/T6 For devices of the category 2 (Zone 1 and 2 Acc. to EN 50 014 and EN 50 018 EC-type examination certificate Execution T4: PTB 98 ATEX 1009 Execution T6: PTB 98 ATEX 1008 Terminal box with cable entry 11 14 mm Protection class IP65 (acc. to EN 60 529 6 400 VDC 24 400 VAC Nominal power 22 W (DC (Execution T4: EEx d II C T4 Ta -20 +40 C (T1 T4 Nominal power 7 W (DC (Execution T6: EEx d II C T4 Ta -20 +90 C (T1 T4 EEx d II C T5 Ta -20 +55 C (T1 T5 EEx d II C T6 Ta -20 +40 C (T1 T6 45 93,3 II 2 G Ex d IIC T4 II 2 D Ex td A21 IP65 T130 C II 2 G Ex d IIC T4/T6 II 2 D Ex td A21 IP65 T130 C/80 C For devices of the category 2 (Zone 1 and 2 resp. Zone 21 and 22 Acc. to EN 60 079-0, EN 60 079-1 (Gas EN 61241-0, EN 61241-1 (Dust EC-type examination certificate PTB 07 ATEX 1023 Terminal box with cable entry 11 14 mm Protection class IP65/IP67 (acc. to EN 60 529 12 230 VDC 24 230 VAC Nominal power 12 W (DC (Execution L12: Ex d II CT4/tDA21IP65T130 C Ta -40 +70 C (T1 T4 Nominal power 6 W (DC (Execution L6: Ex d II CT4/tDA21IP65T130 C Ta -40 +90 C (T1 T4 Ex d II CT6/tDA21IP65T80 C Ta -40 +40 C (T1 T6 II 2 G Ex ia II C T6 (T5 For devices of the category 1 (Zone 0, 1 and 2 Acc. to EN 60 079-0, EN 60 079-11, EN 60 079-26 EC-type examination certificate PTB 07 ATEX 2059 X Terminal box with cable entry 6... 12 mm Protection class IP65 (acc. to EN 60 529 Other information see data sheet 1.1-185 Ex ia II C T5 Ta -20 +60 C (T1 T5 Ex ia II C T6 Ta -20 +45 C (T1 T6 Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Page 7 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change Edition 09 09 CH-3714 Frutigen

Solenoids Solenoid coil MKY45/18x60 For explosion-hazard zones Protection class IP65/67 II 2 G Ex d IIC II 2 D Ex td A21 IP65 DESCRIPTION Solenoid coil in acc. with directive 94/9/EC (ATEX for explosion-hazard zones. Ex: Corresponds to the European standards EN 60079-0, EN 60079-1 (Gas EN 61241-0, EN 61241-1 (Dust d: Flameproof enclosures td: Protection by enclosure Device group II: For all explosion-hazard zones, except mining Gas group IIC: Gas groups IIA + IIB included Device category 2G: for zones 1 and 2 (gas Device category 2D: for zones 21 + 22 (dust Zones: 1/21 and 2/22 EC-type examination certificate: PTB 07 ATEX 1023 The steel housing is zinc-/nickel-coated. FUNCTION In combination with an armature tube, the function of a switching solenoid or of a proportional solenoid results. With the AC-versions, the voltage is rectifi ed by means of electronics. All cable threaded joints certified for this explosion protection class with a protection class of at least IP65 can be used. APPLICATION With the EC-type test certifi cation, the solenoid coil is certifi ed as a device of the category 2G and 2D and of the device group II. This signifi es, that the coils are suitable for applications in zones with explosion-hazard gas-, steam-, vapour-, air- and dust mixtures of the zones 1/21 and 2/22. Valves for explosion-hazard zones are utilised in: the shipping- and offshore industries the oil- and gas industries the chemical industry wood processing grain mills CONTENT DIMENSIONS...1 CHARACTERISTICS...2 OPERATIONAL SAFETY/ INSTALLATION...2 ACCESSORIES...2 TYPE CODE Steel coil Mobile type Terminal box without cable Ex d Execution Housing width 45 mm Coil internal diameter 18 mm Coil length 60 mm M K Y 45 / 18x60 - - Standard nominal voltage U N : 12 VDC G 12 24 VDC G 24 115 VAC R 115 230 VAC R 230 Standard nominal power P N : 6 W L 6 12 W L 12 Design-Index (Subject to change DIMENSIONS Ø22 20 Ø18,2 22,5 42 93,3 M20x1,5 1,4 60 45 Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.1-183E 1/2 CH-3714 Frutigen Edition 08 48

Solenoids CHARACTERISTICS Coil winding isolation class H Protection class in acc. EN 60529 IP65/67, with corresponding cable gland Relative duty factor and correct installation 100 % DF, combined with armature tube and valve Reference temperature Execution L6: -25 +40 C (operation as T1 T6/T80 C -25 +90 C (operation as T1 T4/T130 C Execution L12: -25 +70 C (operation as T1 T4/T130 C Housing Steel housing, zinc-/nickel-coated Relative duty factor max. 95 % (not dew-forming Maximum operating voltage Nominal voltage +10 % Nominal frequency in acc. with name plate ±2 % Standard nominal voltages Standard P N 6 W nominal powers P N 12 W U N 12 VDC U N 24 VDC U N 115 VAC U N 230 VAC Other nominal voltages in the ranges of 12 230 VDC and 24 230 VAC on request 12 VDC 24 VDC Nominal power (W 6 1 12 Nominal resistance (Ω 24,6 12,4 98,4 49,2 Recommended calculation 800 1'500 400 800 voltage for fuse inserts (ma 115 VAC 230 VAC Nominal power (W 6 1 12 Nominal resistance (Ω 1'738 869 6'740 3'370 Recommended calculation 100 200 50 100 voltage for fuse inserts (ma OPERATION SECURITY The solenoid coil must only be put into operation, if the requirements of the operating instructions supplied are observed to their full extent. In case of non-observance, no liability can be assumed. ACCESSORIES The operating instructions incl. the EC declaration of conformity for solenoid coils of the type MKY45/18 x 60 is supplied in German, English and French (download under www.wandfl uh.com EC-type examination certifi cate: PTB 07 ATEX 1023 (download under www.wandfl uh.com EC-declaration of conformity (download under www.wandfl uh.com INSTALLATION Installation in battery arrangement: Please observe the remarks in the operating instructions. Recognition of production quality assurance PTB 07 ATEX Q006 (download under www.wandfl uh.com Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.1-183E 2/2 CH-3714 Frutigen Edition 08 48

Solenoids Solenoid coil M.Z45 for explosion hazard zones Protection class IP65 II 1 G Ex ia II C T6 (T5 DESCRIPTION The solenoid coil for explosion-hazard zones in the type of protection «intrinsic safety» is used in intrinsically safe solenoid spool valves. Ex: in accordance with european standards EN 60079-0, 60079-11, 60079-26 i: intrinsical safety / a: protected 3 times Group II C: (gas group II A, II B for all applications except mining Zone 0: (1 and 2 explosive mixtures continuously present EC-type examination certificate: PTB 07 ATEX 2059 X FUNCTION The winding resistance can be adapted to the intrinsically safe electric power supply. With 100 coil resistance it is adapted to the recommended electric power supplies. On request, it is possible to provide other values within the range of 20...1000. Three diodes connected in parallel with the winding serve to render the inductivity ineffective, and a diode connected in series serves as a protection against reverse polarity. The electrical minimum values for a secure operation can be taken from the corresponding data sheet of the valve. APPLICATION With the EC-type test certification, the solenoid coil is certifi ed as a device of the category 1 and of the device group II. This signifi es, that the valves are suitable for applications in zones with explosion-hazard gas-, steam-, vapour-, air mixtures of the zones 0, 1 and 2. Intrinsically safe valves are used in: the shipping- and offshore industries the oil- and gas industries the chemical industry CONTENT TYPE CODE DIMENSIONS...1 M Z 45-100 SPECIFICATIONS...2 RECOMMENDED ELECTRIC POWER SUPPLY...2 OPERATIONAL SAFETY...2 Mobile type with steel housing Terminal box with cable screw connection M20 x 1,5 Bajonet connector K B ACCESSORIES...2 Ex ia II C type 45 mm square housing Coil resistance 100 Ω (others on request Design-Index (Subject to change DIMENSIONS Type MKZ45 Type MBZ45 ' % ' % ' ' Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.1-185E 1/2 CH-3714 Frutigen Edition 07 51

Solenoids SPECIFICATIONS Insulation material class F of the excitation winding Protection class IP65 to EN 60 529 Relative duty factor 100 % DF Admissible ambient temp. T1 T6: -20 +45 C T1 T5: -20 +60 C Housing Steel housing zinc coated Relative humidity max. 95 % (non-condensing Connection / power supply MKZ45: Cable entry for cable 6 12 mm + external protective terminal MBZ45: (CA 3102E 10 SL4P-B Bajonet connector, Cannon + external protective terminal Technical safety U i 30 V limit values I i 800 ma P i 3 W The effective inductivity and capacity of the solenoid coil winding are very small and therefore neglectible. RECOMMENDED ELECTRIC POWER SUPPLY Commercially available Georgin BXNE3412 or BXNE3712 (1 channel, 1 control input, 24 48 VDC BXNE3422 or BXNE3722 (2 channels, 2 control inputs, 24 48 VDC Output current at 100 Ω 95 ma for type 34 Load resistance and 125 ma for type 37 nominal voltage (load resistance coil resistance + cable resistance Device designation II 1 G / D EEx ia IIC acc. to ATEX Supply voltage for 24 48 VDC, 110 VAC, 230 VAC the electric power supply available SAFE OPERATION Intrinsically safe valves must be operated from suitable, certified power supplies which are located outside the hazardeous area (see operating instructions. The selection of the power supply and wiring work must be executed by trained specialists. ACCESSORIES The operating instructions incl. the EC declaration of conformity for solenoid coils of the type M.Z45-... and I.Z45-... is supplied in German, English and French (download under www.wandfl uh.com EC-type test certifi cation: PTB 07 ATEX 2059 X (download under www.wandfl uh.com EC-declaration of conformity (download under www.wandfl uh.com Recognition of production quality assurance PTB 07 ATEX Q006 (download under www.wandfl uh.com Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.1-185E 2/2 CH-3714 Frutigen Edition 07 51

Solenoid operated spool valves Solenoid operated spool valve 4/2-way impulse valve 4/3-way with spring centred mid position 4/2-way spring reset Q max 20 l/min p max 315 bar NG4-Mini II 2 G / II 2 D EEx em II DESCRIPTION Spool valve flange type NG4-Mini with 4 connections. Direct solenoid operated spool valve with a 5 annular chamber body design. Activated with explosion proof solenoid. Spool detented or with spring reset. Wet pin solenoid. Precise spool fit, low leak, long service life. Spool made from hardened steel. Valve body made from high grade hydraulic cast iron. EEx: in accordance with european standards EN 50014, EN 50019, EN 50028 e: increased safety m: encapsulation Group II: for all applications except mining Zone 1 / 21 (and 2 / 22: explosive mixtures present intermittently EC-type examination certificate: PTB 01 ATEX 2129 X CONTENT GENERAL SPECIFICATIONS... 1 FUNCTION The energised solenoid shifts the spool into the corresponding position. 4/2-way impulse valve detented: Two solenoids and 2 detented positions. With the solenoid deenergised the spool remains in the last switched position. 4/3-way spool valve: Two solenoids and 3 positions, spring centered. With the solenoids deenergised the spool returns to the center position by spring force. 4/2-way spool valve: One solenoid and 2 positions, spring offset. With the solenoid deenergised the spool returns to the offset position by spring force. TYPE CODE APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and retain hydraulic cylinders and motors. The direction of flow through the valve is determined by the spool symbol. Switching performance and possible leakage must be taken into considaration when designing a system. These valves are suitable for hazardeous areas in off-shore and shipbuilding applications as well as in chemical, oil and gas industry. B EX 4 - S1788 - / HYDRAULIC SPECIFICATIONS... 1 ELECTRICAL CONTROL... 2 SOLENOID DESCRIPTION... 2 TYPE LIST/ DESIGNATION OF SYMBOLS... 2 CHARACTERISTICS... 2/3 DIMENSIONS... 3 PARTS LIST... 3 ACCESSOIRES... 3 Interface Explosion proof solenoid Number of control ports Description of symbols acc. to table 1.3-21/2 Terminal box without cable Standard-nominal voltage U N : 24 VDC G24 115 VAC R115 230 VAC R230 Execution: T1 T4 T4 T1 T6 T6 Design-Index (Subject to change GENERAL SPECIFICATIONS Description 4/2-, 4/3-spool valve Nominal size NG4-Mini to Wandfluh-standard Construction Direct operated spool valve Operation Solenoid Mounting Flange 3 fixing holes for socket head cap screws M5x40 M5x50 with distance plate BDP4/12 Connections Threaded connection plates Multi-flange subplates Longitudinal stacking system Admissible ambient temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Mounting position any, preferably horizontal Fastening torque M D 5,5 Nm (quality 8.8 Weight:4/2-way imbulse m 2,6 kg 4/3-way m 2,6 kg 4/2-way (1 solenoid m 1,8 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, classe 20/18/14 (Required filtration grade ß10 16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s...320 mm 2 /s Admissible fluid temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Working pressure p max 315 bar in port P, A, B Tank pressure in port T p max 100 bar Max. volume flow Q max 20 l/min Leakage volume flow see characteristics Deviating pressure medium - or ambient temperatures are possible for special arrangements after checking and authorisation by a responsible inspector. Measures for the prevention of the exceeding of the admissible solenoid surface - and internal temperatures can be: a good ventilation, low ambient temperatures (for higher pressure medium temperatures, limitation of the maximum possible power supply voltage, a short switching-on duration, installation on large heat dissipating blocks, etc. The responsibility in all cases lies with the operator, resp. with his inspector. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-21E 1/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure tight Standard-nominal voltage U N 24 VDC U N 115 VAC, U N 230 VAC DC Ripple 20 %, wired with VDR AC 50 bis 60 Hz ± 2 %; with half wave rectifier and recovery diode Voltage tolerance ±10 % of rated voltage Protection class IP65 / IP67 acc. to EN 60 529 Relative duty factor 100 % DF Switching cycles Operating life Connection/Power supply Designation Execution T4: Execution T6: Nominal power Execution T4: Execution T6: 12'000/h 10 7 (number of switching cycles, theoretically Through cable entry for cable diameter 6 12 mm II 2 G EEx em II T4 (for gas II 2 D IP65 T130 C (for dust II 2 G EEx em II T6 (for gas II 2 D IP65 T80 C (for dust 17 W (DC, 23 VA (AC 7 W (DC, 11 VA (AC START-UP 1. In the power supply for each solenoid a fuse of an appropriate rating (max. 3 times I B of solenoid, DIN 41571 or IEC 127 respectivly a motor circuit breaker with electromagnetic and thermal interruption must be installed. The fuse may be located in the power supply unit for the solenoid or between power supply and solenoid. The voltage rating for the fuse must be equal or higher than the one for the solenoid. 2. The solenoid coils must only be operated on the valve belonging to them. More information concerning the installation and commissioning is contained in the operating instructions supplied together with the solenoid coil. TYPE LIST/DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Transitional functions operation A-side operation B-side * * * 4/3-way valve spring centred * * *, *, * * * * *, *, * * *, * * CHARACTERISTICS Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10%, F H Version T4,, % @ I B,, 3 E F H $ $ @ I B Version T6,,,,, 3 E Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-21E 2/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Pressure drop Curve no. Volume flow direction P-A P-B P-T A-T B-T Symbol Z40/J40 5 5-2 2 Z41/D41 5 5-2 2 Z42/D42 5 5-1 1 Z43/D43 4 4 6 2 2 Z44/D44 4 4 3 2 2 Z45/D45 4 4-2 2 Envelop curve for spool J40/Z40/D41/D42/D44/D45 DIMENSIONS 4/3-way valve (spring centred 4/2-way valve (impulse 4/2-way valve (spring offset ' & ' ' % Δp f (Q Pressure drop volume flow characteristics, F H $ @ I B 3 E Q L f (p Leakage volume flow characteristics per control edge 3? E $ @ I B F H $ ' & Order distance plate BDP4/12 separatly $ ' & 2 6 * 6 PARTS LIST Position Article Description 10 207.5 Coil type EExem 20 57.4202 Cover 30 246.1113 Socket head cap screw M4x12 DIN 912 40 160.2052 O-ring ID 5,28x1,78 50 173.1450 Distance plate BDP4/12 ACCESSORIES Threaded connecting plates, Multi-flange subplates and Longitudinal stacking system see Reg. 2.9 Technical explanation see data sheet 1.0-100E Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-21E 3/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Solenoid operated spool valve 4/2-way impulse valve 4/3-way with spring centred mid position 4/2-way spring reset Q max 20 l/min, p max 315 bar NG4-Mini II 2 G EEx d II C DESCRIPTION Spool valve flange type NG4-Mini with 4 connections. Direct solenoid operated spool valve with a 5 annular chamber body design. Activated with explosion proof solenoid. Spool detented or with spring reset. Wet pin solenoid. Precise spool fit, low leak, long service life. Spool made from hardened steel. Valve body made from high grade hydraulic cast iron. EEx: in accordance with european standards EN 50014, EN 50018 d: flameproof enclosure Group II C: (gas group II A, II B for all applications except mining Zone 1 (and 2: explosive mixtures present intermittently EC-type examination certificate: Execution T4: PTB 98 ATEX 1009 Execution T6: PTB 98 ATEX 1008 FUNCTION The energised solenoid shifts the spool into the corresponding position. 4/2-way impulse valve detented: Two solenoids and 2 detented positions. With the solenoid deenergised the spool remains in the last switched position. 4/3-way spool valve: Two solenoids and 3 positions, spring centered. With the solenoids deenergised the spool returns to the center position by spring force. 4/2-way spool valve: One solenoid and 2 positions, spring offset. With the solenoid deenergised the spool returns to the offset position by spring force. APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and retain hydraulic cylinders and motors.the direction of flow through the valve is determined by the spool symbol. Switching performance and possible leakage must be taken into considaration when designing a system. These valves are suitable for hazardeous areas in off-shore and shipbuilding applications as well as in chemical, oil and gas industry. CONTENT GENERAL SPECIFICATIONS... 1 TYPE CODE B EXd 4 - S1788 - / HYDRAULIC SPECIFICATIONS... 1 ELECTRICAL CONTROL... 2 SOLEONID DESCRIPTION... 2 TYPE LIST/ DESIGNATION OF SYMBOLS... 2 CHARACTERISTICS... 2/3 DIMENSIONS... 3 PARTS LIST... 3 ACCESSOIRES... 3 Interface Explosion proof solenoid Number of control ports Description of symbols acc. to table 1.3-22/2 Terminal box without cable Standard nominal voltage U N : 24 VDC G24 115 VAC R115 230 VAC R230 Execution: T1 T4 T4 T1 T6 T6 Design-Index (Subject to change GENERAL SPECIFICATIONS Description 4/2-, 4/3-spool valve Nominal size NG4-Mini to Wandfluh-standard Construction Direct operated spool valve Operation Solenoid Mounting Flange 3 fixing holes for socket head cap screws M5x40 M5x60 with distance plate BDP4/20 Connections Threaded connection plates Multi-flange subplates Longitudinal stacking system Admissible ambient temp. : Execution T4-20 +40 C Execution T6-20 +90 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Mounting position any, preferably horizontal Fastening torque M D 5,5 Nm (quality 8.8 Weight:4/2-way imbulse m 4,8 kg 4/3-way m 4,8 kg 4/2-way (1 solenoid m 2,8 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, classe 20/18/14 (Required filtration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s...320 mm 2 /s Admissible fluid temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Working pressure p max 315 bar in port P, A, B Tank pressure in port T p max 100 bar Max. volume flow Q max 20 l/min Leakage volume flow see characteristics Deviating pressure medium - or ambient temperatures are possible for special arrangements after checking and authorisation by a responsible inspector. Measures for the prevention of the exceeding of the admissible solenoid surface - and internal temperatures can be: a good ventilation, low ambient temperatures (for higher pressure medium temperatures, limitation of the maximum possible power supply voltage, a short switching-on duration, installation on large heat dissipating blocks, etc. The responsibility in all cases lies with the operator, resp. with his inspector. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-22E 1/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure tight Standard-nominal voltage U N 24 VDC U N 115 VAC, U N 230 VAC DC wired with VDR AC 50 bis 60 Hz ± 2%; with half wave rectifier and recovery diode Voltage tolerance ±10 % of rated voltage Protection class IP 65 acc. to EN 60 529 Relative duty factor 100% DF Switching cycles 12'000/h Operating life 10 7 (number of switching cycles, theoretically Connection/Power supply Through cable entry for cable diameter 11...14 mm Temperature class: (acc. to EN 50014 Execution T4 T1 T4 Execution T6 T1 T6 Nominal power: Execution T4 22 W (DC, 35 VA (AC Execution T6 7 W (DC, 12 VA (AC START-UP Information concerning the installation and commissioning is contained in the operating instructions supplied together with the solenoid coil. TYPE LIST/DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Transitional functions operation A-side operation B-side * 4/3-way valve spring centred * * * * *, *, * * * * *, *, * * *, * * CHARACTERISTICS Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10%, F H Execution T4,, % @ I B,, 3 E F H $ $ @ I B Execution T6,,,,, 3 E Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-22E 2/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Δp f (Q Pressure drop volume flow characteristics, F H @ I B $ 3 E Pressure drop Curve no. Volume flow direction P-A P-B P-T A-T B-T Symbol Z40/J40 5 5-2 2 Z41/D41 5 5-2 2 Z42/D42 5 5-1 1 Z43/D43 4 4 6 2 2 Z44/D44 4 4 3 2 2 Z45/D45 4 4-2 2 Q L f (p Leakage volume flow characteristics per control edge 3? E $ @ I B Envelop curve for spool J40/Z40/D41/D42/D44/D45 F H DIMENSIONS 4/3-way valve (spring centred 4/2-way valve (impulse 4/2-way valve (spring offset % $ $ & % ' % % & $ Order distance plate BDP4/20 separatly % % & 2 6 * 6 PARTS LIST Position Article Description 10 207.5... Coil type EExd 20 57.4202 Cover 30 246.1113 Socket head cap screw M4x12 DIN 912 40 160.2052 O-ring ID 5,28x1,78 50 173.1451 Distance plate BDP4/20 60 111.1080 Cable entry brass M20 ACCESSORIES Threaded connecting plates, multi-flange subplates and longitudinal stacking system see reg. 2.9 Technical explanation see data sheet 1.0-100E Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-22E 3/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Solenoid operated spool valve 4/2-way impulse version, detented 4/3-way with spring centred centre position 4/2-way spring reset Q max 20 l/min, p max 350 bar NG4-Mini II 2 G Ex d II C II 2 D Ex td A21 IP65 DESCRIPTION Spool valve flange type NG6 with four connections. Direct operated solenoid spool valve in 5-chamber-system. Activated with explosionproof solenoid. Spool detented or with spring reset. Wet pin solenoid. Precise spool adaptation, low leak, long service life time. Spool made of hardened steel. Valve body made of high grade hydraulic cast iron. The solenoid spool is zinc- / nickel-coated. Solenoid coil in accordance with directive 94/9/ EC (ATEX for explosion-hazard zones. Ex: In accordance with European standards EN 60079-0, EN 60079-1 (gas EN 61241-0, EN 61241-1 (dust d: Flameproof enclosures td: Protection by enclosure Device group II: For all explosion-hazard zones, except mining Gas group IIC: Gas groups IIA + IIB included Device category 2G: For zones 1 and 2 (gas Device category 2D: For zones 21 and 22 (dust Zones: 1/21 and 2/22 EC-type examination certificate: PTB 07 ATEX 1023 FUNCTION The energised solenoid shifts the spool into the corresponding position. 4/2-way impulse valve detented: Two solenoids and two detented positions. With the solenoid de-energised, the spool remains in the last switched position. 4/3-way spool valve: Two solenoids and three positions, spring centred. With the solenoids de-energised, the spool returns to the centre position by spring force. 4/2-way spool valve: One solenoid and two positions. With the solenoid de-energised the spool returns to the offset position by spring force. Type Code International mounting interface ISO Explosion-proof solenoid Number of control ports Description of symbols acc. to table 1.3-23/2 Standard 12 VDC G12 nominal voltage U N 24 VDC G24 115 VAC R115 230 VAC R230 Ambient temp. by: Execution: 12 W L12 70 C 6 W L6 40 C or 90 C Design-Index (Subject to change APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and to hold hydraulic cylinders and motors. The direction of flow through the valve is determined by the spool symbol. The switching performance and the possible leakage must be taken into consideration when designing a system. These valves are suitable for explosion-hazard areas in off-shore and ship-building applications as well as in the chemical-, oil- and gas industry. B EXd 4 - / GENERAL SPECIFICATIONS Description 4/2-, 4/3-way valve Nominal size NG4 acc. to Wandfluh standards Construction Direct operated spool valve Operation Solenoid operated Mounting Flange installation 3 attachment holes for cylinder screws M5 x 40 or M5 x 50 with distance plate BDP 4/12 Connections Screw connection fixing plates In-line flange plates Longitudinal stacking system Admissible ambient temp. Execution L12: -20 +70 C (operation as T1 T4/T130 C Execution L6: -20 +40 C (operation as T1 T6/T80 C -20 +90 C (operation as T1 T4/T130 C Mounting position any, preferably horizontal Fastening torque M D 5,5 Nm (quality 8.8 Weight: 4/2-way impulse m 4,4 kg 4/3-way m 4,4 kg 4/2-way (1 solenoid m 2,6 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, classe 20/18/14 (Required filtration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm²/s...320 mm²/s Admissible fluid temp. Execution L12: -20 +70 C (operation as T1 T4/T130 C Execution L6: -20 +40 C (operation as T1 T6/T80 C -20 +70 C (operation as T1 T4/T130 C Working pressure in port P, A, B Tank pressure in port T Max. volume flow Leakage volume flow p max 350 bar (p T < 20 bar p max 315 bar (p T 20 bar p Tmax 100 bar Q max 20 l/min see characteristics In case of the execution L12 for ambient temperatures of up to 70 C the characteristic performance values were established at an ambient temperature of 50 C. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-23E 1/3 CH-3714 Frutigen Edition 08 47

Solenoid operated spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure-proof Standard-nominal voltage U N 12 VDC, 24 VDC U N 115 VAC, U N 230 VAC AC 50 up to 60 Hz ± 2 %; with built-in two-way rectifier and recovery diode Voltage tolerance ±10 % of rated voltage Protection class IP65 / IP67 acc. to EN 60 529 Relative duty factor 100 % DF Switching cycles 12000 / h Operating life 10 7 (number of switching cycles, theoretically Connection / Power supply Through cable gland for cable diameter 11 14 mm Temperature class: (acc. to EN 60079-0 Execution L12 T1 T4 Execution L6 T1 T6 Nominal power: Execution L12 12 W Execution L6 6 W For further electrical characteristics, refer to the data sheet of the solenoid coil 1.1-183 operation security The solenoid coil must only be put into operation, if the requirements of the operating instructions supplied are observed to their full extent. In case of non-observance, no liability can be assumed. Installation Tightening torque of the coil fixing nut M D 15 Nm. Installation in battery arrangement: Please observe the remarks in the operating instructions. Designation Execution L6: II 2 G Ex d IIC T6 Ta -25...40 C II 2 D Ex td A21 IP65 T80 C II 2 G Ex d IIC T4 Ta -25...90 C II 2 D Ex td A21 IP65 T130 C Execution L12: II 2 G Ex d IIC T4 Ta -25...70 C II 2 D Ex td A21 IP65 T130 C TYPE LIST/DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Transitional functions Operation A-side Operation B-side A B A B A B a b J40 a b Z40a a b Z40b P T P T P T 4/3-way valve spring centred A B A B A B a o b D41 a b Z41a a b Z41b a P T A B o b D42 a P T A B b Z42a P T A B a b Z42b P A T B P A T B P A T B a o b D43 a b Z43a a b Z43b a P T A B o b D44 a P T A B b Z44a P T A B a b Z44b a P T A B o b D45 a P T A B b Z45a P T A B a b Z45b P T P T P T CHARACTERISTICS Oil viscosity u 30 mm²/s Execution L6 / 90 on request p f (Q Power limits in case of the standard voltage -10 % Execution L12 / 70 (Ambient temp. 50 C Execution L6 / 40 (Ambient temp. 40 C p [bar] p [bar] K0920 350 K0921 350 300 250 200 150 100 50 0 300 250 200 150 100 50 0 J40 Z43/D43 Z44/D44 Z41/D41 Z42/D42 Z45/D45 Z40 0 5 10 15 20 Q [l/min] 0 5 10 15 20 Q [l/min] Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-23E 2/3 CH-3714 Frutigen Edition 08 47

Solenoid operated spool valves p f (Q Pressure drop volume flow characteristics p [bar] K0922 30 25 20 15 10 5 0 0 5 10 15 20 6 5 4 3 2 1 Q [l/min] Symbol Pressure loss characteristic curve no. Volume flow direction P - A P - B P - T A - T B - T Z40/J40 5 5-2 2 D41/Z41 5 5-2 2 D42/Z42 5 5-1 1 D43/Z43 4 4 6 2 2 D44/Z44 4 4 3 2 2 D45/Z45 4 4-2 2 Q L f (p Leakage volume flow characteristics 3 per control edge Q [cm /min] K0923 50 40 30 20 10 Enveloping curve for spool J40/Z40/D41/D42/D44/D45 0 0 50 100 150 200 250 315 p [bar] Dimensions 4/3-way valve (spring centred 4/2-way valve (impulse 4/2-way valve (spring offset 94,6 60 Ø 9,5 Ø 5,5 ( 6 20 30 23,8 32 35 38 248 50 Dimensions of the solenoid coil, refer to data sheet 1.1-183 15 10 91 60 161 8 40 54 10 ( 12 Order distance plate BDP4/12 separatley 28 14 Parts List Position Article Description 10 263.6... Spool MKY45/18x60-... 15 20 253.8000 057.4202 Plug with integrated manual override HB4,5 Cover 30 246.1113 Socket head cap screw M4x12 DIN 912 40 160.2052 O-Ring ID 5,28x1,78 50 173.1450 Distance plate BDP4/12 60 111.1080 Cable gland brass M20 ACCESSORIES Threaded connecting plates, Multi-flange subplates and longitudinal stacking system see reg. 2.9 Technical explanation see data sheet 1.0-100 T A P B T0 14 27 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-23E 3/3 CH-3714 Frutigen Edition 08 47

Solenoid operated spool valves Solenoid operated spool valve 4/2-way impulse valve 4/3-way with spring centred mid position 4/2-way spring reset Q max 50 l/min, p max 350bar NG6 ISO 4401-03 II 2 G / II 2 D EEx em II DESCRIPTION Spool valve flange type NG6 with 4 con-nections. Direct solenoid operated spool valve with a 5 annular chamber body design. Activated with explosion proof solenoid. Spool detented or with spring reset. Wet pin solenoid. Precise spool fit, low leak, long service life. Spool made from hardened steel. Valve body made from high grade hydraulic cast iron. EEx: in accordance with european standards EN 50014, EN 50019, EN 50028 e: increased safety m: encapsulation Group II: for all applications except mining Zone 1 / 21 (and 2 / 22: explosive mixtures present intermittently EC-type examination certificate: PTB 01 ATEX 2129 X FUNCTION The energised solenoid shifts the spool into the corresponding position. 4/2-way impulse valve detented: Two solenoids and 2 detented positions. With the solenoid deenergised the spool remains in the last switched position. 4/3-way spool valve: Two solenoids and 3 positions, spring centered. With the solenoids deenergised the spool returns to the center position by spring force. 4/2-way spool valve: One solenoid and 2 positions, spring offset. With the solenoid deenergised the spool returns to the offset position by spring force. APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and retain hydraulic cylinders and motors.the direction of flow through the valve is determined by the spool symbol. Switching performance and possible leakage must be taken into considaration when designing a system. These valves are suitable for hazardeous areas in off-shore and shipbuilding applications as well as in chemical, oil and gas industry. CONTENT GENERAL SPECIFICATIONS... 1 TYPE CODE A EX 4 - S1788 - / HYDRAULIC SPECIFICATIONS... 1 ELECTRICAL CONTROL... 2 SOLENOID DESCRIPTION... 2 TYPE LIST/ DESIGNATION OF SYMBOLS... 2 CHARACTERISTICS... 2/3 DIMENSIONS... 3 PARTS LIST... 3 ACCESSOIRES... 3 International mounting interface ISO Explosion proof solenoid Number of control ports Description of symbols acc. to table 1.3-31/2 Terminal box without cable Standard nominal voltage U N : 24 VDC G24 115 VAC R115 230 VAC R230 Execution: T1...T4 T4 T1...T6 T6 (on request Design-Index (Subject to change GENERAL SPECIFICATIONS Description 4/2-, 4/3-spool valve Nominal size NG6 to ISO 4401-03 Construction Direct operated spool valve Operation Solenoid Mounting Flange 4 fixing holes for cyl. screws M5x45 M5x60 with distance plate ADP6/12 Connections Threaded connection plates Multi-flange subplates Longitudinal stacking system Admissible ambient temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Mounting position any, preferably horizontal Fastening torque M D 5,5 Nm (quantity 8.8 Weight:4/2-way imbulse m 3,0 kg 4/3-way m 3,0 kg 4/2-way (1 solenoid m 2,0 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, classe 20/18/14 (Required filtration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s...320 mm 2 /s Admissible fluid temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Working pressure p max 350bar in port P, A, B Tank pressure p max 100 bar in port T Max. volume flow Q max 50 l/min Leakage volume flow see characteristics Deviating pressure medium - or ambient temperatures are possible for special arrangements after checking and authorisation by a responsible inspector. Measures for the prevention of the exceeding of the admissible solenoid surface - and internal temperatures can be: a good ventilation, low ambient temperatures (for higher pressure medium temperatures, limitation of the maximum possible power supply voltage, a short switching-on duration, installation on large heat dissipating blocks, etc. The responsibility in all cases lies with the operator, resp. with his inspector. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-31E 1/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure tight Standard-nominal voltage U N 24 VDC U N 115 VAC, U N 230 VAC DC: max. allowed ripple 20%, wired with VDR AC: 50 to 60 Hz ± 2%; with half wave rectifier and recovery diode Voltage tolerance ±10% of rated voltage Protection class IP65 / IP67 acc. to EN 60 52 9 Relative duty factor 100% DF Switching cycles 12'000/h Operating life 10 7 (number of switching cycles, theoretically Connection/Power supply Through cable entry for cable diameter 6...12 mm Designation Execution T4: II 2 G EEx em II T4 (for gas II 2 D IP65 T130 C (for dust Execution T6: II 2 G EEx em II T6 (for gas II 2 D IP65 T80 C (for dust Nominal power Execution T4: 17 W (DC, 23 VA (AC Execution T6: 7 W (DC, 11 VA (AC START-UP 1. In the power supply for each solenoid a fuse of an appropriate rating (max. 3 times I B of solenoid, DIN 41571 or IEC 127 respectivly a motor circuit breaker with electromagnetic an thermal interruption must be installed. The fuse may be located in the power supply unit for the solenoid or between power supply and solenoid. The voltage rating for the fuse must be equal or higher than the one for the solenoid. 2. The solenoid coils must only be operated on the valve belonging to them. More information concerning the installation and commissioning is contained in the operating instructions supplied together with the solenoid coil. TYPE LIST/DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Operation A-side Operation B-side Transitional functions * * * $ $ $ 4/3-way valve spring centred * * *, $ $ $ *, $ * $ * $ * * *, $ $ $ *, $ * $ * $ *, $ * $ * $ CHARACTERISTICS (T6 on request Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10% F H Version T4 @ I B $ $, $, $, $, $, $ 3 E Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-31E 2/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Δp f (Q Pressure drop volume flow characteristics, F H @ I B 3 E Pressure drop Curve no. Symbol Volume flow direction P - A P - B P - T A - T B - T Z60/J60 2 2-2 2 D61/Z61 2 2-2 2 D62/Z62 2 2-2 2 D63/Z63 2 2 3 2 2 D64/Z64 1 1-1 1 D65/Z65 1 1-2 2 Q L f (p Leakage volume flow characteristics per control edge 3? E @ I B ' $ F H Envelop curve for spool no. 3 Envelop curve for the remaining spools DIMENSIONS 4/3-way valve (spring centred 4/2-way valve (impulse 4/2-way valve (spring offset ' ' ' % $ Order distance plate ADP6/12 separatly & ' ' & ' & $ % & PARTS LIST Position Article Description 10 207.5 Coil type EExem 15 253.8000 plug with integrated manuel override HB4,5 20 058.4200 Cover 30 246.2117 Socket head cap screw M5x16 DIN 912 40 160.2093 O-Ring ID 9,25x1,78 50 173.3451 Distance plate ADP6/12 ACCESSORIES Threaded connecting plates, Multi-flange subplates and Longitudinal stacking system see Reg. 2.9 Technical explanation see data sheet 1.0-100E ' Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-31E 3/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Solenoid operated spool valve 4/2-way impulse valve 4/3-way with spring centred mid position 4/2-way spring reset Q max 50 l/min, p max 350 bar NG6 ISO 4401-03 II 2 G EEx d II C DESCRIPTION Spool valve flange type NG6 with 4 con-nections. Direct solenoid operated spool valve with a 5 annular chamber body design. Activated with explosion proof solenoid. Spool detented or with spring reset. Wet pin solenoid. Precise spool fit, low leak, long service life. Spool made from hardened steel. Valve body made from high grade hydraulic cast iron. EEx: in accordance with european standards EN 50014, EN 50018 d: flameproof enclosure Group II C: (gas group II A, II B for all applications except mining Zone 1 (and 2: explosive mixtures present intermittently EC-type examination certificate: Execution T4: PTB 98 ATEX 1009 Execution T6: PTB 98 ATEX 1008 CONTENT GENERAL SPECIFICATIONS... 1 FUNCTION The energised solenoid shifts the spool into the corresponding position. 4/2-way impulse valve detented: Two solenoids and 2 detented positions. With the solenoid deenergised the spool remains in the last switched position. 4/3-way spool valve: Two solenoids and 3 positions, spring centered. With the solenoids deenergised the spool returns to the center position by spring force. 4/2-way spool valve: One solenoid and 2 positions, spring offset. With the solenoid deenergised the spool returns to the offset position by spring force. TYPE CODE APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and retain hydraulic cylinders and motors. The direction of flow through the valve is determined by the spool symbol. Switching performance and possible leakage must be taken into considaration when designing a system. These valves are suitable for hazardeous areas in off-shore and shipbuilding applications as well as in chemical, oil and gas industry. A EXd 4 - S1788 - / HYDRAULIC SPECIFICATIONS... 1 ELECTRICAL CONTROL... 2 SOLEONID DESCRIPTION... 2 TYPE LIST/ DESIGNATION OF SYMBOLS... 2 CHARACTERISTICS... 2/3 DIMENSIONS... 3 PARTS LIST... 3 ACCESSOIRES... 3 International mounting interface ISO Explosion proof solenoid Number of control ports Description of symbols acc. to table 1.3-32/2 Terminal box without cable Standard nominal voltage U N : 24 VDC G24 115 VAC R115 230 VAC R230 Execution: T1...T4 T4 T1...T6 T6 (on request Design-Index (Subject to change GENERAL SPECIFICATIONS Description 4/2-, 4/3-spool valve Nominal size NG6 to ISO 4001-03 Construction Direct operated spool valve Operation Solenoid Mounting Flange 4 fixing holes for cyl. screws M5x45 M5x75 with distance plate ADP6/30 Connections Threaded connection plates Multi-flange subplates Longitudinal stacking system Admissible ambient temp. : Execution T4-20 +40 C Execution T6-20 +90 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Mounting position any, preferably horizontal Fastening torque M D 5,5 Nm (quality 8.8 Weight:4/2-way imbulse m 5,0 kg 4/3-way m 5,0 kg 4/2-way (1 solenoid m 3,0 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, classe 20/18/14 (Required filtration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s...320 mm 2 /s Admissible fluid temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Working pressure p max 350 bar in port P, A, B Tank pressure in port T p max 100 bar Max. volume flow Q max 50 l/min Leakage volume flow see characteristics Deviating pressure medium - or ambient temperatures are possible for special arrangements after checking and authorisation by a responsible inspector. Measures for the prevention of the exceeding of the admissible solenoid surface - and internal temperatures can be: a good ventilation, low ambient temperatures (for higher pressure medium temperatures, limitation of the maximum possible power supply voltage, a short switching-on duration, installation on large heat dissipating blocks, etc. The responsibility in all cases lies with the operator, resp. with his inspector. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-32E 1/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure tight Standard-nominal voltage U N 24 VDC U N 115 VAC, U N 230 VAC DC Ripple 20%, wired with VDR AC 50 to 60 Hz ± 2%; with half wave rectifier and recovery diode Voltage tolerance +/- 10% of rated voltage Protection class IP 65 to EN 60 529 Relative duty factor 100% DF Switching cycles 12'000/h Operating life 10 7 (number of switching cycles, theoretically Connection/Power supply Through cable entry for cable diameter 11...14 mm Temperature class: (acc. to EN 50014 Execution T4 T1 T4 Execution T6 T1 T6 Nominal power: Execution T4 22 W (DC, 35 VA (AC Execution T6 7 W (DC, 12 VA (AC START-UP Information concerning the installation and commissioning is contained in the operating instructions supplied together with the solenoid coil. TYPE LIST/DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Transitional functions Operation A-side Operation B-side * * * $ $ $ 4/3-way valve spring centred * * *, $ $ $ *, $ * $ * $ * * *, $ $ $ *, $ * $ * $ *, $ * $ * $ CHARACTERISTICS (T6 on request Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10 % F H Execution T4 @ I B $ $, $, $, $, $, $ 3 E Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-32E 2/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Δp f (Q Pressure drop volume flow characteristics, F H @ I B 3 E Pressure drop Curve no. Symbol Volume flow direction P - A P - B P - T A - T B - T Z60/J60 2 2-2 2 D61/Z61 2 2-2 2 D62/Z62 2 2-2 2 D63/Z63 2 2 3 2 2 D64/Z64 1 1-1 1 D65/Z65 1 1-2 2 Q L f (p Leakage volume flow characteristics per control edge 3? E @ I B ' $ F H Envelop curve for spool no. 3 Envelop curve for the remaining spools DIMENSIONS 4/3-way valve (spring centred 4/2-way valve (impulse 4/2-way valve (spring offset $ ' % ' $ $ ' ' Order distance plate ADP6/30 separatly ' $ ' $ & $ % & PARTS LIST Position Article Description 10 207.5 Coil type EExd 15 253.8000 Plug with integrated manual override HB4,5 20 058.4200 Cover 30 246.2117 Socket head cap screw M5x16 DIN 912 40 160.2093 O-ring ID 9,25x1,78 50 173.3453 Distance plate ADP6/30 60 111.1080 Cable entry brass M20 ACCESSORIES Threaded connecting plates, Multi-flange subplates and Longitudinal stacking system see Reg. 2.9 Technical explanation see data sheet 1.0-100E ' Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.3-32E 3/3 CH-3714 Frutigen Edition 06 20

Solenoid operated spool valves Solenoid operated spool valve 4/2-way impulse version, detented 4/3-way with spring centred centre position 4/2-way spring reset Q max 50 l/min, p max 350 bar NG6 ISO 4401-03 II 2 G Ex d II C II 2 D Ex td A21 IP65 DESCRIPTION Spool valve fl ange type NG6 with four connections. Direct operated solenoid spool valve in 5-chamber-system. Activated with explosionproof solenoid. Spool detented or with spring reset. Wet pin solenoid. Precise spool fi t, low leak, long service life time. Spool made of hardened steel. Valve body made of high grade hydraulic cast iron. The solenoid coil is zinc-/ nickel-coated. Solenoid coil in accordance with directive 94/9/ EC (ATEX for explosion-hazard zones. Ex: In accordance with European standards EN 60079-0, EN 60079-1 (gas EN 61241-0, EN 61241-1 (dust d: Flameproof enclosures td: Protection by enclosure Device group II: For all explosion-hazard zones, except mining Gas group IIC: Gas groups IIA + IIB included Device category 2G: For zones 1 and 2 (gas Device category 2D: For zones 21 and 22 (dust Zones: 1/21 and 2/22 EC-type examination certificate: PTB 07 ATEX 1023 FUNCTION The energised solenoid shifts the spool into the corresponding position. 4/2-way impulse valve detented: Two solenoids and two detented positions. With the solenoid de-energised, the spool remains in the last switched position. 4/3-way spool valve: Two solenoids and three positions, spring centred. With the solenoids de-energised, the spool returns to the centre position by spring force. 4/2-way spool valve: One solenoid and two positions. With the solenoid de-energised the spool returns to the offset position by spring force. TYPE CODE International mounting interface ISO Explosion-proof solenoid Number of control ports Description of symbols acc. to table 1.3-33/2 Standard 12 VDC G12 nominal voltage U N 24 VDC G24 115 VAC R115 230 VAC R230 A EXd 4 - / Ambient temp. by: Execution: 12W L12 70 C 6W L6 40 C or 90 C Design-Index (Subject to change APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and to hold hydraulic cylinders and motors. The direction of fl ow through the valve is determined by the spool symbol. The switching performance and the possible leakage must be taken into consideration when designing a system. These valves are suitable for explosion-hazard areas in off-shore and ship-building applications as well as in the chemical-, oil- and gas industry. GENERAL SPECIFICATIONS Description 4/2-, 4/3-way valve Nominal size NG6 acc. to ISO 4401-03 Construction Direct operated spool valve Operation Solenoid operated Mounting Flange installation 4 attachment holes for cylinder screws M5x45 Connections Screw connection fi xing plates In-line fl ange plates Longitudinal stacking system Admissible ambient temp. Execution L12: -20 +70 C (operation as T1 T4/T130 C Execution L6: -20 +40 C (operation as T1 T6/T80 C -20 +90 C (operation as T1 T4/T130 C Mounting position any, preferably horizontal Fastening torque M D 5,5 Nm (quality 8.8 Weight: 4/2-way impulse m 4,6 kg 4/3-way m 4,6 kg 4/2-way (1 solenoid m 2,8 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination effi ciency ISO 4406:1999, classe 20/18/14 (Required fi ltration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm²/s...320 mm²/s Admissible fl uid temp. Execution L12: -20 +70 C (operation as T1 T4/T130 C Execution L6: -20 +40 C (operation as T1 T6/T80 C -20 +70 C (operation as T1 T4/T130 C Working pressure p max 350 bar in port P, A, B Tank pressure in port T p Tmax 100 bar Max. volume fl ow Q max 50 l/min Leakage volume fl ow see characteristics In case of the execution L12 for ambient temperatures of up to 70 C the characteristic performance values were established at an ambient temperature of 50 C. Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.3-33E 1/3 CH-3714 Frutigen Edition 08 48

Solenoid operated spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure-proof Standard-nominal voltage U N 12 VDC, 24 VDC U N 115 VAC, U N 230 VAC AC 50 to 60 Hz ± 2 %; with built-in two-way rectifi er and recovery diode Voltage tolerance ±10 % of rated voltage Protection class IP65 / IP67 acc. to EN 60 529 Relative duty factor 100 % DF Switching cycles 12000 /h Operating life 10 7 (number of switching cycles, theoretically Connection/Power supply Through cable gland for cable diameter 11 14 mm Temperature class: (acc. to EN 60079-0 Execution L12 T1 T4 Execution L6 T1 T6 Nominal power: Execution L12 12 W Execution L6 6 W For further electrical characteristics, refer to the data sheet of the solenoid coil 1.1-183 SECURITY OPERATED The solenoid coil must only be put into operation, if the requirements of the operating instructions supplied are observed to their full extent. In case of non-observance, no liability can be assumed. INSTALLATION Tightening torque of the coil fi xing nut M D 15 Nm. Installation in battery arrangement: Please observe the remarks in the operating instructions. DESIGNATION Execution L6: II 2 G Ex d IIC T6 Ta -25...40 C II 2 D Ex td A21 IP65 T80 C II 2 G Ex d IIC T4 Ta -25...90 C II 2 D Ex td A21 IP65 T130 C Execution L12: II 2 G Ex d IIC T4 Ta -25...70 C II 2 D Ex td A21 IP65 T130 C TYPE LIST/DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Transitional functions Operation A-side Operation B-side A B A B A B a b J60 a b Z60a a b Z60b P T P T P T 4/3-way valve spring centred A B A B A B a o b D61 a b Z61a a b Z61b a P T A B o b D62 a P T A B b Z62a P T A B a b Z62b P T A B P T A B P T A B a o b D63 a b Z63a a b Z63b a P T A B o b D64 a P T A B b Z64a P T A B a b Z64b a P T A B o b D65 a P T A B b Z65a P T A B a b Z65b P T P T P T CHARACTERISTICS Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10 % Execution L6 / 90 C on request Execution L12 / 70 C (measured at 50 C Execution L6 / 40 C (measured at 40 C p [bar] K0232 D65 350 J60 300 250 Z60 200 150 D61/D62 100 50 D63/D64 0 0 10 20 30 40 50 Q [l/min] p [bar] K0232_1 350 300 250 200 D61/D62 150 100 Z60 50 0 0 10 20 30 40 50 J60 Q [l/min] Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.3-33E 2/3 CH-3714 Frutigen Edition 08 48

Solenoid operated spool valves p f (Q Pressure drop volume fl ow characteristics p [bar] 30 3 K0232_2.ai 25 20 15 10 5 0 0 10 20 30 40 50 2 1 Q [l/min] Symbole Pressure loss characteristic curve no. Volume flow direction P - A P - B P - T A - T B - T Z60/J60 2 2-2 2 D61/Z61 2 2-2 2 D62/Z62 2 2-2 2 D63/Z63 2 2 3 2 2 D64/Z64 1 1-1 1 D65/Z65 1 1-2 2 Q L f (p Leakage volume fl ow characteristics 3 per control edge Q [cm /min] 150 120 90 60 30 K0232_3.ai 0 0 50 100 150 200 250 300 350 p [bar] Leakage envelope J60 / Z60 / D61 / D62 / D64 / D65 Leakage envelope D63 DIMENSIONS 4/3-way valve (spring centred 4/2-way valve (impulse 4/2-way valve (spring offset Ø9,5 Ø5,2 2030 93,8 265 Dimensions of the solenoid coil, refer to data sheet 1.1-183 17,8 31 21 32,5 22,5 50 39 ( 7 46 45 15 10 91,5 179,8 11,5 64 40 15,3 PARTS LIST Position Article Description 10 263.6... Spool MKY45/18 x 60-... 15 253.8000 Plug with integrated manual override HB4,5 20 058.4200 Cover 30 246.2117 Socket head cap screw M5x16 DIN 912 40 160.2093 O-ring ID 9,25x1,78 50 111.1080 Cable gland brass M20 ACCESSORIES Threaded connecting plates, Multi-fl ange subplates and longitudinal stacking system see reg. 2.9 21,5 Technical explanation see data sheet 1.0-100E 40,5 19 Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.3-33E 3/3 CH-3714 Frutigen Edition 08 48

Solenoid operated spool valves Solenoid operated spool valve intrinsically safe 4/2-way impulse valve 4/3-way with spring centred mid position 4/2-way spring reset Q max 20 l/min, p max 300 bar NG6 ISO 4401-03 II 1 G Ex ia II C DESCRIPTION Spool valve NG6, fl ange type with 4 ports. Direct operated spool in 5 chamber body. Actuated by an explosion-proof solenoid. Intrinsic safety is achieved by limiting the electric energy in the solenoid supply circuit by means of a separate certifi ed intrinsically safe power supply. Spool detented or with spring reset. Wet pin solenoid, precise spool fi t, low leak, long service life. Spool made of hardened steel. Valve body made of high grade hydraulic cast iron. Ex: in accordance with European standards EN 60079-0, EN 60079-11, EN 60079-26 i: intrinsical safety / a: protected 3 times Group II C: (gas group II A, II B for all applications except mining Zone 0 (1 and 2: explosive mixtures continuously present EC-type examination certificate: PTB 07 ATEX 2059 X FUNCTION When energised the solenoid pushes the spool into the corresponding shifted position. 4/2-way detented spool valve: 2 solenoids and 2 detented spool positions. With deenergised solenoids, the spool will be held in the corresponding position by the detent. 4/3-way spool valve: 2 solenoids and 3 spool positions. With deenergised solenoids the spool will be shifted by the spring into the center position. 4/2-way spool valve: 1 solenoid and 2 spool positions. With the deenergised solenoid the spool will be shifted by the spring into the reset position. APPLICATION Solenoid operated directional spool valves are manly used to control the direction of movement and holding of hydraulic cylinders and motors. The direction of movement is defi ned by the symbol. For the layout of the hydraulic system, leakage and valve performance must be taken into consideration. The valves are designed for areas where fl ammable gases are present continuously or intermittently. The intrinsically safe electric circuit prevents sparking. Intrinsically safe valves are used in: Shipping- and offshore industry Oil- and gas industry Chemical industry CONTENT GENERAL SPECIFICATIONS...1 HYDRAULIC SPECIFICATIONS...1 ELECTRICAL CONTROL...2 ELECTRIC POWER SUPPLY...2 SAFETY RELEVANT DATA...2 SAFE OPERATION...2 TYPE LIST/ DESIGNATION OF SYMBOLS...2 CHARACTERISTICS...3 DIMENSIONS...4 PARTS LIST...4 ACCESSORIES...4 TYPE CODE International mounting interface standard ISO Explosion proof solenoid intrinsically safe Number of control ports Description of symbols acc. to table 1.3-40/2 Coil resistance 100 Ω (other on request Execution T1 T6 Design-Index (Subject to change A EXi 4-100 / T6 GENERAL SPECIFICATIONS Designation 4/2-, 4/3-spool valve Nominal size NG6 according to ISO 4401-03 Construction Direct operated spool valve Operation Solenoid Mounting Flange 4 fi xing holes for socket head cap screws M5x45 Connections Threaded connection plates Multi-fl ange subplates Longitudinal stacking system Admissible ambient temp. -20 +45 C (operation as T6-20 +60 C (operation as T1 T5 Mounting position any, preferable horizontal Fastening torque M D 5,5 Nm (quality 8.8 Masse: 4/2-way impulse m 5,3 kg 4/3-way m 5,3 kg 4/2-way (1 solenoid m 3,2 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination effi ciency ISO 4406:1999, class 20/18/14 (Required fi ltration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s...320 mm 2 /s Admissible fl uid temperature -20 +45 C (operation as T6-20 +60 C (operation as T1 T5 Working pressure p max 300 bar in port P, A, B Tank pressure in port T p max 100 bar Max. volume fl ow Q max 20 l/min Leakage volume fl ow see characteristics Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.3-40E 1/4 CH-3714 Frutigen Edition 07 51

Solenoid operated spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure tight Protection class IP65 acc. to EN 60 529 (after correct installation Duty time Continuous Switching cycles 1800/h Life time 10 7 ( cycles per solenoid, theoretically Connection/power supply Cable entry for cable 6 12 mm 2 leads for +/- and 1 for ground Temperature class T1 T6 to EN 60 079-0 Slip-on coil rotatable in steps of 90, easily exchangable Other electrical specifi cations see data sheet 1.1-185 (M.Z45 SAFETY RELEVANT DATA Limiting values U i 30 V I i 800 ma P i 3 W (U i, I i and P i serve for the selection of the intrinsically safe power supply only and are not identical with the effective values during operation Coil resistance 100 Ω Power supply Suitable power supplies are available on the market or may be supplied on request. Solenoid current Solenoid current available from the power supply must exceed 0,81W (90 ma mit 100 Ω. RECOMMENDED ELECTRIC POWER SUPPLY available on the free market (GEORGIN Electric power supply type BXNE3412 or BXNE3712 for 4/2-way directional (1 channel, 1 control input, 24 48 VDC control valve Electric power supply type BXNE3422 or BXNE3722 for 4/3-way directional (2 channels, 2 control inputs, 24 48 VDC control valve Output current at 100 Ω 95 ma for type 34 Load resistance and 125 ma for type 37 Nominal voltage (load resistance coil resistance + cable resistance Device designation II 1G / D EEx ia II C according to ATEX Supply voltage for 24 48 VDC, 110 VAC, 230 VAC the electric power supply available SAFE OPERATION Intrinsically safe valves must be operated from suitable, certified power supplies which are located outside the hazardeous area (see operating instructions. The selection of the power supply and wiring work must be executed by trained specialists. TYPE LIST / DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Transitional functions Operation A-side Operation B-side * * * $ $ $ 4/3-way valve spring centred * * *, $ $ $ *, $ * $ * $ * * *, $ $ $ *, $ * $ * $ *, $ * $ * $ Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.3-40E 2/4 CH-3714 Frutigen Edition 07 51

Solenoid operated spool valves CHARACTERISTICS Oil viscosity υ 30 mm 2 /s p f (Q Performance limit with P min 0,81 W (90 ma, 100 Ω p f(q Performance limit with P min 0,81 W (90 ma, 100 Ω F H, $, $, $ $ % @ I B 3 E F H, $ $ % @ I B, $ 3 E p f (Q Performance limit with P 1,21 W (110 ma, 100 Ω p f (Q Performance limit with P 1,21 W (110 ma, 100 Ω F H, $, $, $ $ % @ I B 3 E F H, $ $ % @ I B, $ 3 E Δp f (Q Pressure drop volume fl ow characteristics, F H % $ @ I B & $ 3 E Pressure drop curve no. Symbol Volume flow direction P - A P - B P - T A - T B - T Z60 3 3-3 3 J60 2 2-2 2 D61/Z61 2 2-2 2 D62/Z62 2 2-1 1 D63/Z63 3 3 2 3 3 D64/Z64 1 1-1 1 D65/Z65 1 1-2 2 Q L f (p Leakage volume fl ow characteristics per control edge 3? E % % @ I B ' $ F H Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.3-40E 3/4 CH-3714 Frutigen Edition 07 51

Solenoid operated spool valves DIMENSIONS 4/3-way valve (spring centred 4/2-way valve (impulse 4/2-way valve (spring reset ' ' $ ' % $ $ $ $ % & Requirements of the fl ange connection surface of the counter-piece ' PARTS LIST Position Article Description ACCESSORIES Threaded connecting plates, multi-fl ange subplates and longitudinal stacking system see register 2.9 10 263.6 Solenoid coil type MKZ45 20 253.8000 plug with integrated manuel override HB4,5 30 260.0093 Armature tube SMI45 40 058.4211 Cover 50 246.1117 Socket head cap screw M5x16 DIN 912 60 160.2093 O-ring ID 9,25x1,78 Technical explanation see data sheet 1.0-100E Wandfl uh AG Tel. +41 33 672 72 72 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +41 33 672 72 12 Internet: www.wandfl uh.com Data subject to change 1.3-40E 4/4 CH-3714 Frutigen Edition 07 51

Solenoid spool valves Spool valve pilot operated 4/2-way impuls version detended 4/3-way with spring centred mid position 4/2-way with spring reset Q max 100 l/min, p max 315 bar NG10 ISO 4401-05 II 2 G / II 2 D EEx em II DESCRIPTION Pilot operated spool valve in flange type NG10 with 4 connections. Pilot valve as direct operated spool valve with a 5 annular chamber body design. Spool made from hardened steel. Valve body made from high grade hydraulic cast iron. EEx: in accordance with european standards EN 50014, EN 50019, EN 50028 e: increased safety m: encapsulation Group II: for all applications except mining Zone 1 / 21 (and 2 / 22: explosive mixtures present intermittently EC-type examination certificate: PTB 01 ATEX 2129 X TYPE CODE FUNCTION By operating the pilot valve pressure will be applied to one end of the main spool and move it into activated position as indicated on lable. 4/2-way impuls valve 4/3-way spring centered 4/2-way spring reset (see data sheets of the corresponding pilot valves Pilot pressure supply and drain either internal are as an option external through a ported sandwich plate between main and pilot valve. APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and retain hydraulic cylinders and motors. The direction of flow through the valve is determined by the spool symbol. Pilot operated valves are used where high flows have to by controlled. These valves are suitable for hazardeous areas in off-shore and shipbuilding applications as well as in chemical, oil and gas industry. A EX VP 4 - - S1788 - / International interface ISO Pilot operated valve: Explosion proof solenoid Pilot operated spool valve No. of control ports Type charts/symbols acc. to table 1.9-35/2 Pilot pressure supply and drain: Pressure supply (x and drain (y internal Pressure supply (x and drain (y external Pressure supply (x internal drain (y external Pressure supply (x external drain (y internal t i t e p i p e Terminal box without cable Standard nominal voltage U N : 24 VDC G24 115 VAC R115 230 VAC R230 Execution: T1 T4 T4 T1 T6 T6 Design-Index (Subject to change GENERAL SPECIFICATIONS Description 4/2-, 4/3-way valve Nominal size NG10 to ISO 4401-05 Construction Pilot operated spool valve Operations Solenoid operated valve Pilot supply valves BEX4.4. Data sheet 1.3-21 Mounting Flange mounting 4 holes for socket cap screws M6x65 Connections Threaded connection plates Multi-flange plates Longitudinal stacking system Admissible ambient temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Mountin position any, preferably horizontal Fastering torque M D 9,5 Nm (screw quality 8.8 Weight:Main valve m 3,6 kg Sandwich plate m 0,4 kg Pilot valve m 1,8 2,6 kg depending on the valve typ Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-35E 1/4 CH-3714 Frutigen Edition 06 20

Solenoid spool valves HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, class 20/18/14 (Required filtration grade ß10 16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s 320 mm 2 /s Admissible fluid temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Operating pressure p max 315 bar in port P, A, B Tank pressure p T max 160 bar at pilot supply t e and p i in port T p T max 100 bar at pilot supply t i and p e p T minimum 12 bar deeper at p v Pilot over p v min 12 bar sandwich plate p v max 315 bar Max. volume flow Q max 100 l/min Leakage volume flow see characteristics Deviating pressure medium - or ambient temperatures are possible for special arrangements after checking and authorisation by a responsible inspector. Measures for the prevention of the exceeding of the admissible solenoid surface - and internal temperatures can be: a good ventilation, low ambient temperatures (for higher pressure medium temperatures, limitation of the maximum possible power supply voltage, a short switching-on duration, installation on large heat dissipating blocks, etc. The responsibility in all cases lies with the operator, resp. with his inspector. ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure tight Standard-nominal voltage U N 24 VDC U N 115 VAC, U N 230 VAC DC Ripple at to 20%; wired with VDR AC 50 bis 60 Hz ± 2%; with half wave rectifier and recovery diode Voltage tolerance ±10% of nominal voltage Protection class IP65 / IP67 acc. to EN 60 529 Relative duty factor 100% DF Switching cycles 12'000/h Operating life 10 7 (number of switching cycles, theoretically Connection/Power supply Through cable entry for cable diameter 6...12 mm Designation Execution T4: II 2 G EEx em II T4 (for gas II 2 D IP65 T130 C (for dust Execution T6: II 2 G EEx em II T6 (for gas II 2 D IP65 T80 C (for dust Nominal power Execution T4: 17 W (DC, 23 VA (AC Execution T6: 7 W (DC, 11 VA (AC START-UP 1. In the power supply for each solenoid a fuse of an appropriate rating (max. 3 times I B of solenoid, DIN 41571 or IEC 127 respectivly a motor circuit breaker with electromagnetic an thermal interruption must be installed. The fuse may be located in the power supply unit for the solenoid or between power supply and solenoid. The voltage rating for the fuse must be equal or higher than the one for the solenoid. 2. The solenoid coils must only be operated on the valve belonging to them. More information concerning the installation and commissioning is contained in the operating instructions supplied together with the solenoid coil. TYPE LIST / DESIGNATION OF SYMBOLS 4/2-way valve 4/2-way valve with spring reset Transitional functions with 2 solenoids operation A-side operation B-side * * * 4/3-way valve spring centered * * *, *, * * * * *, *, * * *, * * Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-35E 2/4 CH-3714 Frutigen Edition 06 20

Solenoid spool valves CHARACTERISTICS Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10% Q L f (p Leakage volume flow characteristics per control edge (Solenoid operated F H 3? E $ @ I B $ % & ',,,,, 3 E @ I B F H Δp f (Q Pressure drop volume flow characteristics, F H % @ I B $ % & ' 3 E Pilot supply ti and pi Pressure drop curve no. Symbol Volume flow direction P - A P - B P - T A - T B - T Z100/J100 1 1-1 2 D101/Z101 1 1-1 2 D102/Z102 1 1-1 2 D103/Z103 4 4 5 1 2 D104/Z104 4 4-1 2 D105/Z105 1 1-1 2 Pilot supply te and pe Pressure drop curve no. Symbol Volume flow direction P - A P - B P - T A - T B - T Z100/J100 1 1-1 2 D101/Z101 1 1-1 2 D102/Z102 1 1-1 2 D103/Z103 1 1 3 1 2 D104/Z104 1 1-1 2 D105/Z105 1 1-1 2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-35E 3/4 CH-3714 Frutigen Edition 06 20

Solenoid spool valves DIMENSIONS PARTS LIST $ % ; / & : / & Position Article Description & 10 059.2206 Cover 20 246.3131 Socket head cap screw M6x30 DIN 912 30 246.2150 Socket head cap screw M5x50 DIN 912 for pilot supply ti 246.2170 Socket head cap screw M5x70 DIN 912 for pilot supply te, pi and pe 40 160.2052 O-ring ID 5,28x1,78 50 160.2140 O-ring ID 14,00x1,78 60 238.1202 Plug screw DIN 908 G1/8 70 049.2102 Bonded seal ID 10,7x17x1,5 $ $ % $ ' & $ ACCESSORIES Threaded connecting plates, Multi-flange subplates and Longitudinal stacking system see Reg. 2.9 $ 6 2 * 6 ' % $ & Technical explanation see data sheet 1.0-100E & & Mounting instruction To screw the main valve body (M D 9,5 Nm, quality 8.8 to the base plate the pilot valve (M D 5,5 Nm, quality 8.8. must be taken off. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-35E 4/4 CH-3714 Frutigen Edition 06 20

Solenoid spool valves Spool valve pilot operated 4/2-way impuls version detended 4/3-with spring centred mid position 4/2-way with spring reset Q max 100 l/min, p max 315 bar NG10 ISO 4401-05 II 2 G EEx d II C DESCRIPTION Pilot operated spool valve in flange type NG10 with 4 connections. Pilot valve as direct operated spool valve with a 5 annular chamber body design. Spool made from hardened steel. Valve body made from high grade hydraulic cast iron. EEx: in accordance with european standards EN 50014, EN 50018 d: flameproof enclosure Group II C: (gas group II A, II B for all applications except mining Zone 1: (and 2 explosive mixtures present intermittently EC-type examination certificate: Execution T4: PTB 98 ATEX 1009 Execution T6: PTB 98 ATEX 1008 FUNCTION By operating the pilot valve pressure will be applied to one end of the main spool and move it into activated position as indicated on lable. 4/2-way impuls valve 4/3-way spring centered 4/2-way spring reset (see data sheets of the corresponding pilot valves Pilot pressure supply and drain either internal are as an option external through a ported sandwich plate between main and pilot valve. APPLICATION Solenoid operated spool valves are mainly used to control the direction of movement and retain hydraulic cylinders and motors. The direction of flow through the valve is determined by the spool symbol. Pilot operated valves are used where high flows have to by controlled. These valves are suitable for hazardeous areas in off-shore and shipbuilding applications as well as in chemical, oil and gas industry. TYPE CODE A EXd VP 4 - - S1788 - / International interface ISO Pilot operated valve: Explosion proof solenoid Pilot operated spool valve No. of control ports Type charts/symbols acc. to table 1.9-36/2 Pilot pressure supply and drain: Pressure supply (x and drain (y internal Pressure supply (x and drain (y external Pressure supply (x internal drain (y external Pressure supply (x external drain (y internal t i t e p i p e Terminal box without cable Standard nominal voltage U N : 24VDC G24 115VAC R115 230VAC R230 Execution: T1 T4 T4 T1 T6 T6 Design-Index (Subject to change GENERAL SPECIFICATIONS Description 4/2-, 4/3-way valve Nominal size NG10 acc. to ISO 4401-05 Construction Pilot operated spool valve Operations Solenoid operated valve Pilot supply valves BEXd4.4. data sheet 1.3-22 Mounting Flange mounting 4 holes for socket cap screws M6x65 Connections Threaded connection plates Multi-flange plates Longitudinal stacking system Admissible ambient temp. : Execution T4-20 +40 C Execution T6-20 +90 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Mounting position any, preferably horizontal Fastening torque M D 9,5 Nm (screw quality 8.8 Weight:Main valve m 3,6 kg Sandwich plate m 0,4 kg Pilot valve m 3,2 5,1 kg depending on the valve typ Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-36E 1/4 CH-3714 Frutigen Edition 06 20

Solenoid spool valves HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, class 20/18/14 (Required filtration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s...320 mm 2 /s Admissible fluid temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Operating pressure p max 315 bar in port P, A, B Tank pressure in port T p T max 160 bar at pilot supply t e and p i p T max 100 bar at pilot supply t i and p e p T minimum 12 bar deeper at p v Pilot over p v min 12 bar sandwich plate p v max 315 bar Max. volume flow Q max 100 l/min Leakage volume flow see characteristics Deviating pressure medium - or ambient temperatures are possible for special arrangements after checking and authorisation by a responsible inspector. Measures for the prevention of the exceeding of the admissible solenoid surface - and internal temperatures can be: a good ventilation, low ambient temperatures (for higher pressure medium temperatures, limitation of the maximum possible power supply voltage, a short switching-on duration, installation on large heat dissipating blocks, etc. The responsibility in all cases lies with the operator, resp. with his inspector. ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure tight Standard-nominal voltage U N 24 VDC U N 115 VAC, U N 230 VAC DC wired with VDR AC 50 bis 60 Hz ± 2%; with half wave rectifier and recovery diode Voltage tolerance ±10% of nominal voltage Protection class IP 65 acc. to EN 60 529 Relative duty factor 100% DF Switching cycles 12'000/h Operating life 10 7 (number of switching cycles, theoretically Connection/Power supply Through cable entry for cable diameter 11 14 mm Temperature class: (acc. to EN 50014 Execution T4 T1 T4 Execution T6 T1 T6 Nominal power: Execution T4 22 W (DC, 35 VA (AC Execution T6 7 W (DC, 12 VA (AC START-UP Information concerning the installation and commissioning is contained in the operating instructions supplied together with the solenoid coil. TYPE LIST / DESIGNATION OF SYMBOLS 4/2-way valve impulse 4/2-way valve with spring reset Transitional functions operation A-side operation B-side * * * 4/3-way valve spring centered * * *, *, * * * * *, *, * * *, * * Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-36E 2/4 CH-3714 Frutigen Edition 06 20

Solenoid spool valves CHARACTERISTICS Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10% Q L f (p Leakage volume flow characteristics per control edge (Solenoid operated F H 3? E $ @ I B $ % & ',,,,, 3 E @ I B F H Δp f (Q Pressure drop volume flow characteristics, F H % @ I B $ % & ' 3 E Pilot supply ti and pi Pressure drop curve no. Symbol Volume flow direction P - A P - B P - T A - T B - T Z100/J100 1 1-1 2 D101/Z101 1 1-1 2 D102/Z102 1 1-1 2 D103/Z103 4 4 5 1 2 D104/Z104 4 4-1 2 D105/Z105 1 1-1 2 Pilot supply te and pe Pressure drop curve no. Symbol Volume flow direction P - A P - B P - T A - T B - T Z100/J100 1 1-1 2 D101/Z101 1 1-1 2 D102/Z102 1 1-1 2 D103/Z103 1 1 3 1 2 D104/Z104 1 1-1 2 D105/Z105 1 1-1 2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-36E 3/4 CH-3714 Frutigen Edition 06 20

Solenoid spool valves DIMENSIONS PARTS LIST $ % ; / & : / & Position Article Description 10 059.2206 Cover 20 246.3131 Socket head cap screw M6x30 DIN 912 30 249.2000 Socket head cap screw M5x60 for pilot supply ti 246.2180 Socket head cap screw M5x80 for pilot supply te, pi and pe 40 160.2052 O-ring ID 5,28x1,78 50 160.2140 O-ring ID 14,00x1,78 60 238.1202 Plug screw DIN 908 G1/8 70 049.2102 Bonded seal ID 10,7x17x1,5 & $ % $ $ ' & $ ACCESSORIES Threaded connecting plates, Multi-flange subplates and Longitudinal stacking system see Reg. 2.9 $ 6 2 * 6 ' % $ & Technical explanation see data sheet 1.0-100E & & Mounting instruction To screw the main valve body (M D 9,5 Nm, quality 8.8 to the base plate the pilot valve (M D 5,5 Nm, quality 8.8. must be taken off. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-36E 4/4 CH-3714 Frutigen Edition 06 20

0, 70 10 20 40 YG1/8 54 55 ( 7 XG1/8 Spool valve pilot operated 4/2-way Impulse version detended Ø 6,5 4/3-way with spring centred mid position 4/2-way with spring reset Q max 100 l/min, p max 315 bar 62 60 82 NG10 ISO 4401-05 II 2 G Ex d II C II 2 D Ex td A21 IP65 Solenoid spool valves 93 Description 148,6 Pilot operated spool valve in flange type NG10 50 with 4 connections. Pilot valve as direct operated spool valve in a 5 chamber system. Spool made from hardened steel, valve body made from high grade hydraulic cast iron. The solenoid coil is zinc-/nickel-coated. Solenoid coil in accordance with EC-Directive 94/9 (ATEX for explosion-hazard zones. Ex: In accordance with European standards EN 60079-0, EN 60079-1 (gas EN 61241-0, EN 61241-1 (dust d: Flameproof enclosures td: Protection by enclosure Device group II: For all explosion-hazard zones, except mining Gas group IIC: Gas groups IIA + IIB included Device cat. 2G: For zones 1 and 2 (gas Device cat. 2D: For zones 21 and 22 (dust Zones: 1/21 and 2/22 EC-Type examination certificate: PTB 07 ATEX 1023 FunCtion By the actuation of the pilot control valve the spool of the main valve is brought into the corresponding switching position. 4/2-way impulse version detented 4/3-way with spring-centred mid position 4/2-way with spring reset (See data sheet of pilot valve 1.3-23 The actuation of the pilot valve can be internal or external, depending on the type of pilot operation. TYPE CODE International connection standard ISO Pilot operated valve: Explosion proof version Pilot operated spool valve No. of control ports Symbols designation acc. to table 1.9-37/2 Pilot control types: Pressure supply (x and drain (y internal Pressure supply (x and drain (y external Pressure supply (x internal drain (y external Pressure supply (x external drain (y internal A EXd VP 4 - - / ti te pi pe Standard nominal voltage U N 12 VDC G12 24 VDC G24 115 VAC R115 230 VAC R230 Ambient temp. up to: Execution: 12W L12 70 C 6W L6 40 C or 90 C Design-Index (Subject to change Application Spool valves are mainly utilised for controlling the direction of movement and for holding hydraulic cylinders and motors. The direction of movement is determined by the symbol. Pilot operated valves are utilised where large volume flows have to be controlled. These valves are suitable for hazardous areas in shipbuilding- and off-shore-applications as well as in chemical, oil and gas industry. General specifications Description 4/2-, 4/3-way valve Nominal size NG10 to ISO 4401-05 Construction Pilot operated spool valve Actuation Solenoid actuated Pilot valve BEXd4.4. Data sheet 1.3-23 Mounting Flange mounting 4 holes for socket cap screws M6x65 Connections Threaded connection plates Multi-flange plates Longitudinal stacking system Admissible ambient temp. Execution L12: -20 +70 C (operation as T1 T4/T130 C Execution L6: -20 +40 C (operation as T1 T6/T80 C -20 +90 C (operation as T1 T4/T130 C Mountin position any, preferably horizontal Fastering torque M D 9,5 Nm (screw quality 8.8 Weight: Main valve m 3,6 kg Sandwich plate Pilot valve m 0,4 kg m 2,6 4,4 kg depending on the valve type HYDRAULIc specifications Fluid Mineral oil, other fluid on request Contamination efficiency ISO 4406:1999, class 20/18/14 (Required filtration grade ß10...16 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s 320 mm 2 /s Admissible fluid temp. Execution L12: -20 +70 C (operation as T1 T4/T130 C Execution L6: -20 +40 C (operation as T1 T6/T80 C -20 +70 C (operation as T1 T4/T130 C Operating pressure p max 315 bar in port P, A, B Tank pressure p T max 160 bar at pilot supply te and pi in port T p T max 100 bar at pilot supply ti and pe p T minimum 12 bar lower than p v Pilot over p v min 12 bar sandwich plate p v max 315 bar Max. volume flow Q max 100 l/min Leakage volume flow see characteristics Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-37E 1/4 H-3714 Frutigen Edition 08 50

Solenoid spool valves ELECTRICAL CONTROL Construction Solenoid, wet pin push type, pressure-proof Standard-nominal voltage U N 12 VDC, 24 VDC U N 115 VAC, U N 230 VAC AC 50 to 60 Hz ± 2 %; with built-in two-way rectifier and recovery diode Voltage tolerance ±10 % of rated voltage Protection class IP65 / IP67 acc. to EN 60 529 Relative duty factor 100 % DF Switching cycles 12000 /h Operating life 10 7 (number of switching cycles, theoretically Connection/Power supply Through cable gland for cable diameter 11 14 mm Temperature class: (acc. to EN 60079-0 Execution L12 T1 T4 Execution L6 T1 T6 Nominal power: Execution L12 12 W Execution L6 6 W For further electrical characteristics, refer to the data sheet of the solenoid coil 1.1-183 security operated The solenoid coil must only be put into operation, if the requirements of the operating instructions supplied are observed to their full extent. In case of non-observance, no liability can be assumed. Installation Tightening torque of the coil fixing nut M D 15 Nm. Installation in battery arrangement: Please observe the remarks in the operating instructions. Designation Execution L6: II 2 G Ex d IIC T6 Ta -25...40 C II 2 D Ex td A21 IP65 T80 C II 2 G Ex d IIC T4 Ta -25...90 C II 2 D Ex td A21 IP65 T130 C Execution L12: II 2 G Ex d IIC T4 Ta -25...70 C II 2 D Ex td A21 IP65 T130 C TYPE LIST / DESIGNATION OF SYMBOLS 4/2-way-valve 4/2-way-valve with spring reset Transitional functions with 2 solenoids actuation A-side actuation B-side 4/3-way-valve spring centered Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-37E 2/4 H-3714 Frutigen Edition 08 50

Solenoid spool valves CHARACTERISTICS Oil viscosity υ 30 mm 2 /s p f (Q Performance limits with standard voltage -10% (Solenoid actuation Q L f (p Leakage volume flow characteristics per control edge 3 Q [cm /min] K0344.ai 200 150 100 50 0 0 50 100 150 200 250 300 350 p [bar] p f (Q Pressure drop volume flow characteristics p [bar] K0347.ai 20 15 10 5 0 0 10 20 30 40 50 60 70 80 90 5 3 4 2 1 100 Q [l/min] For pilot control types ti and pi Pressure drop curve no. Symbol Volume flow direction p - A P - B P - T A - T B - T Z100/J100 1 1-1 2 D101/Z101 1 1-1 2 D102/Z102 1 1-1 2 D103/Z103 4 4 5 1 2 D104/Z104 4 4-1 2 D105/Z105 1 1-1 2 For pilot control types te and pe Pressure drop curve no. Symbol Volume flow direction p - A P - B P - T A - T B - T Z100/J100 1 1-1 2 D101/Z101 1 1-1 2 D102/Z102 1 1-1 2 D103/Z103 1 1 3 1 2 D104/Z104 1 1-1 2 D105/Z105 1 1-1 2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-37E 3/4 H-3714 Frutigen Edition 08 50

Solenoid spool valves DIMENSIONS parts list 60, 70 20 40 YG1/8 Ø 6,5 30 54 55 ( 7 XG1/8 62 60 82 Position Article Description 10 059.2206 Cover 20 246.3131 Socket head cap screw M6x30 DIN 912 30 246.2160 Socket head cap screw M5x60 DIN 912 for pilot supply ti 246.2180 Socket head cap screw M5x80 DIN 912 for pilot supply te, pi and pe 40 160.2052 O-ring ID 5,28x1,78 50 160.2140 O-ring ID 14,00x1,78 60 238.1202 Plug screw DIN 908 G1/8 70 049.2102 Bonded seal ID 10,7x17x1,5 10 50 93 148,6 ACCESSORIES Threaded connecting plates, Multi-flange subplates and Longitudinal stacking system see Reg. 2.9 54 P Technical explanation see data sheet 1.0-100 46 T A B T0 1,5 16,8 9,7 20,8 48 Mounting instruction To screw the main valve body (M D 9,5 Nm, quality 8.8 to the base plate the pilot valve (M D 5,5 Nm, quality 8.8. must be taken off. Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.9-37E 4/4 H-3714 Frutigen Edition 08 50

Proportional spool valves Proportional directional valve not pressure compensated Q max 40 l/min Q N max 25 l/min p max 350 bar description Direct operated proportional spool valve in flange design NG6 acc. to ISO 4401-03/7790 with 4 ports. The spool valve is designed to the 5 chamber principle. The volume flow is adjusted by explosion proof proportional solenoid. Low pressure drop due to the body design and spool profiling. The spool is made of hardend steel. The body made of high grade hydraulic casting for long service life is painted. EEx: in accordance with european standards EN 50014, EN 50019, EN 50028 e: increased safety m: encapsulation Group II: for all applications except mining Zone 1 / 21 (and 2 / 22: explosive mixtures present intermittently EC-type examination certificate: PTB 01 ATEX 2129 X NG6 ISO 4401-03 II 2 G / II 2 D EEx em II Function Proportionally to the solenoid current spool stroke, spool opening and valve volume flow will increase. Proportional directional valves NG6 are not load-compensated. The optimum spool shape and progressive characteristics curve allow fine motion control. To control the valve Wandfluh proportional amplifiers are available (see register 1.13. application Proportional directional spool valves are well suited for demanding applications where high resolution, high volume flow and low hysteresis are requested. The facility for remote control and signal processing from process control sy-stems enable elegant, comfortable solutions to problems. These valves are suitable for hazardeous areas in off-shore and ship-building applications as well as in chemical, oil and gas industry. CONTENT GENERAL SPECIFICATIONS...1 HYDRAULIC SPECIFICATIONS...1 ELECTRICAL SPECIFICATIONS...2 TYPE CHARTS/ DESIGNATIONS OF SYMBOLS...2 CHARACTERISTICS...2/3 DIMENSIONS...4 PARTS LIST...4 ACCESSORIES...4 TYPE CODE WDC F A06 - - - - G24 / Proportional directional valve Flange construction International standard interface ISO, nominal size 6 Description of symbols acc. to table 1.10-85/2 Nominal volume flow Q N : T4: 5 l/min 5 T6: 3 l/min 3 (at 20 bar pressure drop 10 l/min 10 6 l/min 6 16 l/min 16 8 l/min 8 25 l/min 25 12,5 l/min 12,5 Standard nominal voltage U N : 24 VDC Execution: T1 T4 T4 T1 T6 T6 Design-Index (Subject to change GENERAL SPECIFications Nominal size NG6 acc. to ISO 4401-03/7790 Designation 4/2-, 4/3-way proportional directional valve Construction Direct operated spool valve Mounting Flange, 4 fixing holes for socket head cap screws M5x50 Fastening torque M D 5,5 Nm (screw qual. 8.8 Pipe connection Connection plates Multi-station flange subplate Longitudinal stacking system Mounting position any, preferably horizontal Admissible ambient temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Weight: 4/2-way m 2,0 kg 4/3-way m 3,0 kg Deviating pressure medium - or ambient temperatures are possible for special arrangements after checking and authorisation by a responsible inspector. Measures for the prevention of the exceeding of the admissible solenoid surface - and internal temperatures can be: a good ventilation, low ambient temperatures (for higher pressure medium temperatures, limitation of the maximum possible power supply voltage, a short switching-on duration, installation on large heat dissipating blocks, etc. The responsibility in all cases lies with the operator, resp. with his inspector. HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination ISO 4406:1999, class 18/16/13 efficiency (Required filtration grade ß 6 10 75 refer to data sheet 1.0-50/2 Viscosity range 12 mm 2 /s 320 mm 2 /s Admissible fluid temp. : Execution T4-20 +40 C Execution T6-20 +70 C (operation as T1 T4-20 +40 C (operation as T5 / T6 Working pressure p max 350 bar (connections P, A, B Tank pressure p max 160 bar (connection T Nominal volume flow T4: Q N 5 l/min, 10 l/min, 16 l/min, 25 l/min T6: Q N 3 l/min, 6 l/min, 8 l/min, 12,5 l/min Max. volume flow see characteristic Leakage volume flow on request Hysteresis T4: 5 % T6: 8 % at optimal dither signal Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.10-85E 1/4 CH-3714 Frutigen Edition 07 08

Proportional spool valves electrical specifications Construction Proportional solenoid, wet pin push type, pressure tight Standard nominal voltage U N 24 VDC DC Ripple 20%; wired with VDR Limiting current T4: I G 585 ma T6: I G 220 ma Relative duty factor 100% ED Protection class IP65 / IP67 acc. to EN 60 529 Connection/Power supply Through cable entry for cable Ø 6...12 mm Designation Execution T4: Execution T6: Limiting wattage Execution T4: Execution T6: II 2 G EEx em II T4 (for gas II 2 D IP65 T130 C (for dust II 2 G EEx em II T6 (for gas II 2 D IP65 T80 C (for dust 14 W at I G 585 ma 5,8 W at I G 220 ma START-UP 1. In the power supply for each solenoid a fuse of an appropriate rating (max. 3 times I B of solenoid, DIN 41571 or IEC 127 respectivly a motor circuit breaker with electromagnetic an thermal interruption must be installed. The fuse may be located in the power supply unit for the solenoid or between power supply and solenoid. The voltage rating for the fuse must be equal or higher than the one for the solenoid. 2. The solenoid coils must only be operated on the valve belonging to them. More information concerning the installation and commissioning is contained in the operating instructions supplied together with the solenoid coil. TYPE CHARTS / DESIGNATIONS OF SYMBOLS ACB - S S Symmetrical control mode ADB - V V Meter-in control mode AC1 - S S Symmetrical control mode CB2 - S S Symmetrical control mode CHARACTERISTICS oil viscosity υ 30 mm 2 /s Q f (p Volume flow pressure characteristics (I I G [Types: ACB-S, AC1-S, CB2-S] Execution T4 Q f (p Volume flow pressure characteristics (I I G [Type: ADB-V] Execution T4 Execution T6 Execution T6 Legend: 1: Q N 5 l/min 2: Q N 10 l/min 3: Q N 16 l/min 4: Q N 25 l/min 5: Q N 3 l/min 6: Q N 6 l/min 7: Q N 8 l/min 8: Q N 12,5 l/min note All values measured over 2 metering edges, A and B ports linked Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.10-85E 2/4 CH-3714 Frutigen Edition 07 08

Proportional spool valves p f (Q Pressure loss/flow characteristics (I I G [Types: ACB-S, AC1-S, CB2-S] p f (Q Pressure loss/flow characteristics (I I G [Type: ADB-V] Execution T4 Execution T4 Execution T6 Execution T6 Q f (I Volume flow adjustment characteristics ( p 20 bar [Types: ACB-S, AC1-S, CB2-S] Q f (I Volume flow adjustment characteristics ( p 20 bar [Type: ADB-V] Execution T4 Execution T4 Execution T6 Execution T6 Legend: 1: Q N 5 l/min 2: Q N 10 l/min 3: Q N 16 l/min 4: Q N 25 l/min 5: Q N 3 l/min 6: Q N 6 l/min 7: Q N 8 l/min 8: Q N 12,5 l/min note All values measured over 2 metering edges, A and B ports linked Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.10-85E 3/4 CH-3714 Frutigen Edition 07 08