Proportional directional valve pressure compensated Q max 8 l/min p max bar NG4-Mini DISCRIPTION Directly controlled spool valve, actuated by a Wandfl uh proportional solenoid (VDE standard 8), in fi ve chamber design. Wet solenoid in oil. Spools with precision machined oil passages control the oil volume wich is proportional to the solenoid current. Reduced pressure drop achieved by optimised fl ow channels. Precise spool fi t, long life. Spool made of hardened steel, valve body made of high quality cast iron suitable for hydraulic valves. Flange type, threaded connection by means of a connecting plate. FUNCTION Spool stroke, aperture and volume fl ow increase proportionally to the increase in the electric current at the proportional solenoid. This special design senses and compensales load induced fl ow changes. Flow remains constant with varying pressure. The optimised shape of the spool results in a good resolution of fl owimportant for sensitive motion control. To control the valve Wandfl uh proportional amplifi ers are available (see register.). APPLICATION Because of the high resolution and low hysteresis, these valves are particularly suitable for demanding tasks. Applications: handling operations, robots, actuators, radar controlled vehicles, tool making and paper production machines, in other words anywhere where precise control systems are needed. CONTENT GENERAL SPECIFICATIONS... HYDRAULIC SPECIFICATIONS... ELECTRICAL SPECIFICATIONS... TYPE CHARTS / DESIGNATIONS OF SYMBOLS... CHARACTERISTICS... DIMENSIONS... PARTS LIST... ACCESSORIES... TYPE CODE Proportional control valve Number of control ports Symbol type see chart on page Nominal volume fl ows: Q N l/min Q N 6 l/min 6 Q N 4 l/min 4 Q N 8 l/min 8 Normally closed Standard nominal voltage U N : VDC G 4 VDC G4 Design-Index (Subject to change) VWS 4 - - TF - # GENERAL SPECIFICATIONS Nominal size NG4-Mini acc. to Wandfl uh-standard Designation 4/-, 4/- Proportional control valve Construction Direct operated spool valve Mounting Flange, 4 holes for socket cap screws M x 4 Fastening torque M D, Nm (screw quality 8.8) Pipe connection Connection plates, Multi-station fl ange subplate, Longitudinal stacking system Mounting position any Ambient temperature - + C Weight: 4/-way m, kg 4/-way m,4 kg ELECTRICAL SPECIFICATIONS Construction Proportional solenoid, wet pin push type, pressure tight. Standard-Nominal voltage U VDC U 4 VDC Limiting current I G ma I G 68 ma Relative duty factor % DF (see data sheet.-4) Protection class IP 6 to EN 6 9 Connection / Power supply Over device plug connection to ISO 44 / DIN 46 (P+E) Other electrical specifi cations see data sheet.- (PIV) HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination ISO 446:999, class 8/6/ effi ciency (Required fi ltration grade ß6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure p max bar (ports P, A, B) Tank pressure max tank pressure in T p max 6 bar Nominal volume Q N l/min Q N 6 l/min fl ows Q N 4 l/min Q N 8 l/min Min. volume fl ow Q min, l/min Leakage volume fl ow on request Resolution ma Repeatability Hysteresis % % by optimal dithersignal Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-6e / CH-74 Frutigen Edition
Proportional spool valves TYPE CHARTS / DESIGNATIONS OF SYMBOLS 6 6 6 6 6 6 D4 Z4a Z4b D4 Z4a Z4b CHARACTERISTICS oil viscosity υ mm /s Q f (p) Volume fl ow-pressure-characteristics K88,,, Q N l/min p [bar] Q f (p) Volume fl ow-pressure-characteristics K89 4 Q N 4 l/min Q f (p) Volume fl ow-pressure-characteristics Q N 6 l/min % IG 7% IG % IG % IG 7% IG % IG p [bar] K9 6 4 % IG 7% IG % I G p [bar] Q f (p) Volume fl ow-pressure-characteristics K9 8 6 4 Q N 8 l/min % IG 7% I G % IG p [bar] Q f (l) Volume fl ow-signal-characteristics K9 8 6 4 8 6 4 4 6 7 8 9 I [%] Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-6e / CH-74 Frutigen Edition
) 6 ) & * % Proportional spool valves DIMENSIONS 4/-way valve 4/-way valve! #! ' # # # " $ % # #! #! $! &! #! #! # ' $ " "! " % 6 " PARTS LIST Position Article Description 6.44 Proportional solenoid PIV-G4 6.46 Proportional solenoid PIV-G.8 Plug with integrated manual override HB4, 9. Plug A (grey) 9. Plug B (black) 4 7.48 Cover 46.6 Socket head cap screw M4 x 6 DIN 9 6 46. Socket head cap screw M4 x DIN 9 7 6. O-ring ID,8 x,78 ACCESSORIES Sub-plates register.9 Proportional-amplifi er register. Technical explanation see data sheet.- Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-6e / CH-74 Frutigen Edition
Proportional directional valve pressure compensated Q max l/min p max bar NG6 ISO 44- DISCRIPTION Directly controlled spool valve, actuated by a Wandfl uh proportional solenoid (VDE standard 8), in fi ve chamber design. Wet solenoid in oil. Spools with precision machined oil passages control the oil volume wich is proportional to the solenoid current. Reduced pressure drop achieved by optimised fl ow channels. Precise spool fi t, long life. Spool made of hardened steel, valve body made of high quality cast iron suitable for hydraulic valves. Flange type, threaded connection by means of a connecting plate. FUNCTION Spool stroke, aperture and volume fl ow increase proportionally to the increase in the electric current at the proportional solenoid. This special design senses and compensales load induced fl ow changes. Flow remains constant with varying pressure. The optimised shape of the spool results in a good resolution of fl owimportant for sensitive motion control. To control the valve Wandfl uh proportional amplifi ers are available (see register.). APPLICATION Because of the high resolution and low hysteresis, these valves are particularly suitable for demanding tasks. Applications: handling operations, robots, actuators, radar controlled vehicles, tool making and paper production machines, in other words anywhere where precise control systems are needed. CONTENT GENERAL SPECIFICATIONS... HYDRAULIC SPECIFICATIONS... ELECTRICAL SPECIFICATIONS... TYPE CHARTS / DESIGNATIONS OF SYMBOLS... CHARACTERISTICS... / DIMENSIONS... PARTS LIST...4 ACCESSORIES...4 TYPE CODE Proportional control valve Number of control ports Symbol type see chart on page.-/ Nominal volume fl ows: Q N, l/min, Q N l/min Q N l/min Q N l/min Q N l/min Normally closed Standard nominal voltage U N : VDC G 4 VDC G4 VWS 4 - - TF - # Design-Index (Subject to change) GENERAL SPECIFICATIONS Nominal size NG6 acc. to ISO 44- Designation 4/-, 4/-way proportional control valve Construction Direct operated spool valve Mounting Flange, 4 holes for socket cap screws M x 4 Fastening torque M D, Nm (screw quality 8.8) Pipe connection Connection plates, Multi-station fl ange subplate, Longitudial stacking system Mounting position any Ambient temperature - + C Weight: 4/-way m,8 kg 4/-way m,8 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination ISO 446:999, class 8/6/ effi ciency (Required fi ltration grade ß6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure p max bar (Ports P, A, B) Tank pressure max tank pressure in T p max 6 bar Nominal volume Q N, l/min Q N l/min fl ows Q N l/min Q N l/min Q N l/min Min. volume fl ow Leakage volume fl ow Resolution Repeatability Hysteresis Q min, l/min on request ma % % by optimal dithersignal Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-e /4 CH-74 Frutigen Edition
Proportional spool valves ELECTRICAL SPECIFICATIONS Construction Proportional solenoid, wet pin push type, pressure tight. Standard-Nominal voltage U VDC U 4 VDC Limiting current: PIV I G ma I G 68 ma for VWS4.6 Q N, l/min for VWS4.6 Q N, l/min PI4V I G 78 ma I G 8 ma for VWS4.6 Q N l/min for VWS4.6 Q N l/min Relative duty factor % DF (see data sheet.-4) Prodection class IP 6 to EN 69 Connection / Power Over device plug connection to supply ISO 44 / DIN 46 (P+E) Other electrical specifi cations see data sheet:.- (PIV).- (PI4V) TYPE CHARTS / DESIGNATIONS OF SYMBOLS 6 6 6 6 6 6 D6 Z6a Z6b D6 Z6a Z6b CHARACTERISTICS oil viscosity υ mm /s Q f (p) Volume fl ow-pressure-characteristics Q N, l/min K4, % IG 7% I G, % I G, p [bar] Q f (p) Volume fl ow-pressure-characteristics K46 8 6 4 Q N l/min p [bar] Q f (p) Volume fl ow-pressure-characteristics K47 Q N l/min Q f (l) Volume fl ow-signal-characteristics % I G 7% I G % I G % I G 7% I G % IG p [bar] K48 4 6 7 8 9 I [%] Q L f (p) Leakage volume fl ow characteristics per control edge Q [cm /min] K49, p [bar] Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-e /4 CH-74 Frutigen Edition
# ) ) 6 Proportional spool valves DIMENSIONS 4/-way valve VWS4.6 for Q N, l/min 4/-way valve VWS4.6 for Q N, l/min 4/-way valve VWS4.6 for Q N, l/min 4/-way valve VWS4.6 for Q N, l/min! #! # # ' # " % ' #! #! ' % " " $ " #! # ' $ " '! "!! $ % 4/-way valve VWS4.6 for Q N l/min 4/-way valve VWS4.6 for Q N l/min! # 4/-way valve VWS4.6 for Q N l/min 4/-way valve VWS4.6 for Q N l/min! # # ' # " # & " # " #! ' % " # " $ # # " # $ " $ " #! $ # #!! # % % &!! # # ' " # Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-e /4 CH-74 Frutigen Edition
PARTS LIST Position Article Description 6.44 Proportional solenoid PIV-G4 6.46 Proportional solenoid PIV-G 6.444 Proportional solenoid PI4V-G4 6.448 Proportional solenoid PI4V-G.8 Plug with integrated manual override HB4,.8 Plug with integrated manual override HB6 9. Plug A (grey) 9. Plug B (blac) 4 6. Cover 4 8.4 Cover 46.6 Socket head cap screw M4 x 6 DIN 9 46.6 Socket head cap screw M x 6 DIN 9 6 46. Socket head cap screw M4 x DIN 9 6 46.7 Socket head cap screw M x 6 DIN 9 7 6.9 O-ring ID 9, x,78 ACCESSORIES Sub-plates register.9 Proportional-amplifi er register. Explications techniques voir feuille.- Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-e 4/4 CH-74 Frutigen Edition
Proportional directional valve pressure compensated Q max 6 l/min p max bar NG ISO 44- DISCRIPTION Directly controlled spool valve, actuated by a Wandfluh proportional solenoid (VDE standard 8), in five chamber design. Wet solenoid in oil. Spools with precision machined oil passages control the oil volume wich is proportional to the solenoid current. Reduced pressure drop achieved by optimised flow channels. Precise spool fit, long life. Spool made of hardened steel, valve body made of high quality cast iron suitable for hydraulic valves. Flange type, threaded connection by means of a connecting plate. FUNCTION Spool stroke, aperture and volume flow increase proportionally to the increase in the electric current at the proportional solenoid. This special design senses and compensales load induced flow changes. Flow remains constant with varying pressure. The optimised shape of the spool results in a good resolution of flowimportant for sensitive motion control. To control the valve Wandfluh proportional amplifiers are available (see register.). APPLICATION Because of the high resolution and low hysteresis, these valves are particularly suitable for demanding tasks. Applications: handling operations, robots, actuators, remote controlled vehicles, tool making and paper production machines, in other words anywhere where precise control systems are needed. CONTENT GENERAL SPECIFICATIONS... HYDRAULIC SPECIFICATIONS... ELECTRICAL SPECIFICATIONS... TYPE CHARTS / DESIGNATIONS OF SYMBOLS... CHARACTERISTICS... DIMENSIONS... PARTS LIST... ACCESSORIES... TYPE CODE Proportional control valve Number of control ports Symbol type see chart on page Nominal volume flows: Q N l/min Q N l/min Q N 4 l/min 4 Q N 6 l/min 6 Normally closed Standard nominal voltage U N : VDC G 4 VDC G4 Design-Index (Subject to change) VWS 4 - - TF - # GENERAL SPECIFICATIONS Nominal size NG acc. to ISO 44- Designation 4/-, 4/-way proportional control valve Construction Direct operated spool valve Mounting Flange, 4 holes for socket cap screws M6 x 9 Fastening torque M D 9, Nm (screw quality 8.8) Pipe connection Connection plates, Multi-station flange subplate, Longitudinal stacking system Mounting position any, preferably horizontal Ambient temperature - + C Weight: 4/-way m, kg 4/-way m 6,9 kg ELECTRICAL SPECIFICATIONS Construction Proportional solenoid, wet pin push type, pressure tight. Standard-Nominal voltage U VDC U 4 VDC Limiting current I G ma I G ma Relative duty factor % DF (see data sheet.-4) Protection class IP 6 to EN 6 9 Connection / Power supply Over device plug connection to ISO 44 / DIN 46 (P+E) Other electrical specifications see data sheet.- (PI6V) HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination ISO 446:999, class 8/6/ efficiency (Required filtration grade ß6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure in port P, A, B p max bar Tank pressure in port T Nominal volume flows p max bar Q N l/min Q N l/min Q N 4 l/min Q N 6 l/min Min. volume flow Q min, l/min Resolution ma Repeatability Hysteresis % % by optimal dithersignal Wandfluh AG Tel. +4 67 7 7 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfluh.com Data subject to change.-e / CH-74 Frutigen Edition
TYPE CHARTS / DESIGNATIONS OF SYMBOLS CHARACTERISTICS oil viscosity υ mm /s Q f (l) Volume flow-signal-characteristics 6 6 6 6 6 6 D Za Zb D Za Zb K9 6 4 4 6 7 8 9 I [%] Q f (p) Volume flow-pressure-characteristics K9 6 4 Q N l/min p [bar] Q f (p) Volume flow-pressure-characteristics K9 6 4 Q N 4 l/min p [bar] Q f (p) Volume flow-pressure-characteristics K9 6 4 Q N l/min p [bar] Q f (p) Volume flow-pressure-characteristics 6 4 K94 6 Q N 6 l/min 4 4 p [bar] Wandfluh AG Tel. +4 67 7 7 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfluh.com Data subject to change.-e / CH-74 Frutigen Edition
DIMENSIONS 4/-way valve 4/-way valve! # )! " $ # $ # # # $ $ $ % # % $ '" $ % & & # '! % & '' # " " $ 6 ) & " & * 6 # ' % $ & PARTS LIST Position Article Description 6.44 Proportional solenoid PI6V-G4-M4 6.48 Proportional solenoid PI6V-G-M4.8 Plug with integrated manual override HB8, 9. Plug A (grey) 9. Plug B (black) 4 9. Cover 46.9 Socket head cap screw M6 x 9 DIN 9 6 46. Socket head cap screw M6 x DIN 9 7 6.4 O-ring ID 4, x,78 ACCESSORIES Sub-plates register.9 Proportional-amplifier register. Technical explanation see data sheet.- Wandfluh AG Tel. +4 67 7 7 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfluh.com Data subject to change.-e / CH-74 Frutigen Edition
Proportional directional valve not pressure compensated Q max 8 l/min Q N l/min p max bar NG-Mini DESCRIPTION Direct operated proportional spool valve in fl ange design NG-Mini according to Wandfl uh standard with 4 ports. The spool valve is designed to the chamber principle. The volume fl ow is adjusted by a Wandfl uh proportional solenoid (VDE standard 8). Low pressure drop due to the body design and spool profi - ling. The spool is made of hardend steel. The body made of high grade hydraulic casting for long service life is painted. The cover and the solenoid are zinc coated. FUNCTION Proportionally to the solenoid current spool stroke, spool opening and valve volume fl ow will increase. Proportional directional valves NG-Mini are not load-compensated. The optimum spool shape and progressive characteristics curve allow fi ne motion control. To control the valve Wandfl uh proportional amplifi ers are available (see register.). APPLICATION Proportional directional spool valves are well suited for demanding applications where high resolution, high volume fl ow and low hysteresis are requested. They are implemented in industrial hydraulics as well as in mobile hydraulics for the smooth control of hydraulic actuators. Mini- valves are used where both, reduced dimensions and weight are important. Application examples: pitch control of wind generators, forest and earth moving machines, machine tools and paper production machines with simple position controls, robotics and fan control. CONTENT GENERAL SPECIFICATIONS... HYDRAULIC SPECIFICATIONS... ELECTRICAL SPECIFICATIONS... TYPE CHARTS/ DESIGNATIONS OF SYMBOLS... CONTROL MODE... CHARACTERISTICS... DIMENSIONS... PARTS LIST... ACCESSORIES... TYPE CODE Proportional directional valve Flange construction Interface nominal size -Mini Description of symbols acc. to table.-6/ Nominal fl ow at bar pressure drop over metering edges l/min Standard nominal voltage U N : VDC G 4 VDC G4 Design-Index (Subject to change) WDP F A - - - - # GENERAL SPECIFICATIONS Nominal size NG-Mini acc. to Wandfl uh standard Designation 4/-, 4/-way prop. directional valve Construction Direct operated spool valve Mounting Flange, fastening holes for socket head cap screws M4x Fastening torque,8 Nm (qual. 8.8) Pipe connection Connection plates Multi-station fl ange subplate Longitudinal stacking system Mounting position any, preferably horizontal Ambient temperature - + C Weight: solenoid-version m, kg solenoid-version m,6 kg HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination effi ciency ISO 446:999, class 8/6/ (Required fi ltration grade ß 6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure p max bar (connection P, A, B) Tank pressure p max 6 bar (connection T) Nominal volume fl ow Q N l/min at bar Max. volume fl ow Leakage volume fl ow Hysteresis pressure drop over metering edges Q max 8 l/min see characteristic % by optimal dithersignal ELECTRICAL SPECIFICATIONS Construction Proportional solenoid, wet pin push type, pressure tight Standard-Nominal voltage U VDC U 4 VDC Limiting current I G 8 ma I G 4 ma Relative duty factor % DF (see data sheet.-4) Protection class IP 6 acc. to EN 6 9 Connection/Power supply Over device plug connection acc. to ISO 44/DIN 46 (P+E) Other electrical specifi cations see data sheet.-9 (PI9V) Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-6e / CH-74 Frutigen Edition
! " ) ' 6 ) * ' Proportional spool valves TYPE CHARTS / DESIGNATIONS OF SYMBOLS 6 6 6 ACB - S CHARACTERISTICS oil viscosity υ mm /s Q f (l) Volume fl ow-signal-characteristics K7 8 6 4 Q f (p) Volume fl ow-pressure-characteristics S Symmetrical control mode AC - S S Symmetrical control mode CB - S S Symmetrical control mode p bar p bar p bar 4 6 7 8 9 K8 8 6 4 I [%] I I G p [bar] Q L f (p) Leakage-characteristics Q [cm /min] K9 4 p [bar] p f(q) Pressure loss/fl ow-characteristics over metering edges p [bar] K6 6 4 DIMENSIONS 6 4 6 8 ADB - V V Meter-in control mode Steuerart V Control mode S! # Steuerart S Control mode S PARTS LIST Position Article Description $ 6.4 Proportional solenoid PI9V-G4 6.48 Proportional solenoid PI9V-G.8 Plug with integrated manual override HB4, 9. Plug A (grey) 9. Plug B (black) 4 6.4 Cover 46.4 Socket head cap screw Mx4 DIN 9 6 46.9 Socket head cap screw Mx8 DIN 9 7 6.4 O-ring ID 4,x, ACCESSORIES Sub-plates Register.9 Proportional-amplifi er Register. $ & # #! # % # " # #! % " %! $ Technical explanation see data sheet.-e 6 Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-6e / CH-74 Frutigen Edition
Proportional directional control valve Integrated amplifier Integrated spool position control with LVDT Direct operated, not pressure compensated Q max l/min Q N 8 l/min p max bar NG4-Mini DESCRIPTION Direct operated proportional spool valve with integrated electronics in flange design NG4- Mini acc. to Wandfluh standard with 4 ports. The valve possesses an integrated positional control of the valve spool. This assures a minimal hysteresis and improved dynamic characteristics. Housing for electronics with protection class IP67 for harsh environment. The spool valve is designed acc. to the chamber principle. The volume flow is adjusted by Wandfluh proportional solenoids (VDE standard 8). Low pressure drop due to the body design and spool profiling. The spool is made of hardened steel. The body made of high grade hydraulic casting is painted. The solenoids are zinc coated and the housing for the elctronics is made of aluminium. FUNCTION With the integrated spool position sensor (LVDT) the actual position of the spool is continuously recorded and made to follow the setpoint value transmitted in an analogue manner. By means of this internal positional control, a minimal hysteresis and excellent dynamic characteristics are assured. With an increasing set-point value signal, the valve opening and therefore the volume flow increases and vice versa. Parameter setting and diagnosis with the free-of-charge software «PASO». Data are stored in a non volatile memory. Even after an electric power failure settings can easily be reproduced and transmitted. APPLICATION Proportional directional control valves with integrated electronics are highly suitable for demanding applications thanks to a high resolution, large volume flow, minimal hysteresis and very good dynamic characteristics. They are implemented in systems calling for good valveto-valve reproducibility, easy installation, comfortable operation and high precision in industrial hydraulics as well as in mobile hydraulics for the smooth control of actuators. Application examples: pitch control of wind generators, forest and earth moving machines, machine tools and paper production machines with position controls, robotics and fan control. CONTENT GENERAL SPECIFICATIONS... TYPE CHARTS / DESIGNATIONS OF SYMBOLS... HYDRAULIC SPECIFICATIONS... ELECTRICAL SPECIFICATIONS... START-UP... CONNECTOR WIRING DIAGRAM... CHARACTERISTICS... DIMENSIONS...4 PARTS LIST...4 ACCESSORIES (not incl. in the delivery)...4 TYPE CODE Interface With integrated electronics and position control Proportional directional valve Control mode acc. to table.-7/ Number of control ports Designation of symbols acc. to table.-7/ Nominal volume flow Q N : 4 l/min 4 8 l/min 8 Standard nominal voltage U N : 4 VDC Hardware configuration: With analog signal (- + V factory set) With CANopen acc. to DSP-48 With Profibus DP acc. to Fluid Power Technology Design-Index (Subject to change) B R W 4 - - 4 # A C P GENERAL SPECIFICATIONS Designation 4/-way proportional valve with integrated electronics Nominal size NG4-Mini acc. to Wandfluh standard Construction Direct operated spool valve Operations Proportional solenoid, wet pin push type, pressure tight Mounting Flange, fixing holes for socket head cap screws Mx4 Connections Threaded connection plates, multi-flange subplates, longitudinal stacking system Ambient temperature - +6 C (typical) (The upper temperature limit is a guideline value for typical applications, in individual cases it may also be higher or lower. The electronics of the valve limit the power in case of a too high electronics temperature. More detailed information can be obtained from the operating instructions «DSV».) Mounting position any, preferably horizontal Fastening torque M D, Nm (quality 8.8) Weight m,9 kg Wandfluh AG Tel. +4 67 7 7 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfluh.com Data subject to change.-7e /4 CH-74 Frutigen Edition
Proportional spool valves TYPE CHARTS / DESIGNATIONS OF SYMBOLS 6 S 4 D4 S Symmetrical control mode 6 V 4 D4 V Meter-in control mode HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fluid on request Contamination efficiency ISO 446:999, class 8/6/ (Required filtration grade β 6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure p max bar (connections P, A, B) Tank pressure p max 6 bar (connections T) Nominal volume flow Q N 4 l/min, 8 l/min Max. volume flow see characteristic Leakage volume flow on request Hysteresis <,4 % Repeatability <,4 % Jump response typically ms from to 9 % Frequency response see characteristics ELECTRICAL SPECIFICATIONS Protection class IP 67 acc. to EN 6 9 with suitable connector and closed electronic housing Supply voltage 4 VDC Ramps separate adjustment for up and down for each solenoid Parameterisation Interface via fielbus or USB USB (Mini B) for parameterisation with «PASO» (under the closing screw of the housing cover, factory set parameters) Analog interface: Device receptacle (male) M, -poles Mating connector Plug (female), M, -poles (not incl. in delivery) Preset value signal: Voltage / current selected with software Fieldbus interface: Device receptacle supply (male) Mating connector M, 4-poles Plug (female), M, 4-poles (not incl. in delivery) Device receptacle CANopen (male) M, -poles (acc. to DRP -) Mating connector Plug (female), M, -poles (not incl. in delivery) Device receptacle Profibus (female) M, -poles, B-codiert (acc. to IEC 947--) Mating connector Plug (male), M, -poles, B-codet Preset value signal: (not incl. in delivery) Fieldbus NOTE! Detailed electrical characteristics and description of «DSV» electronics are shown on data sheet.-7. START-UP Normally there is no need to adjust settings by the customer. The connectors have to be wired according to the chapter «Connector wiring diagram». Axis controllers will be supplied configurated as amplifiers. Switching into controller mode and setting of the adjustments of the controller must be done by the customer using the set-up software (Serial interface.) Additional information can be found on our website: «www.wandfluh.com» Free-of-charge download of the «PASO»-software and the instruction manual for the «DSV» hydraulic valves as well as the operation instruction CANopen protocol with device profile DSP-48 for «DSV». CONNECTOR WIRING DIAGRAM Analog interface: Device receptacle (male) X 8 9 7 6 4 Supply voltage + Supply voltage VDC Stabilised output voltage 4 Preset value voltage + Preset value voltage - 6 Preset value current + 7 Preset value current - 8 Reserved for extensions 9 Reserved for extensions Enable control (Digital input) Error signal (Digital output) Chassis Preset value voltage (PIN 4/) resp. current (PIN 6/7) are selected with set- up and diagnosis software. Factory setting: Voltage (- + V), (PIN 4/) Fieldbus interface: Device receptacle supply (male) X 4 Device receptacle CANopen (male) X 4 MAIN Supply voltage + Reserved for extensions Supply voltage VDC 4 Chassis Device receptacle Profibus (female) X CAN PROFIBUS not connected VP not connected RxD / TxD - N CAN Gnd DGND 4 4 CAN High 4 RxD / TxD - P CAN Low Shield Parameterisation interface (USB, Mini B) X Under the closing screw of the housing cover NOTE! The mating connetor and the cable to adjust the settings are not part of the delivery. To order the cable, look up the article no. in the chapter «Accessories». Wandfluh AG Tel. +4 67 7 7 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfluh.com Data subject to change.-7e /4 CH-74 Frutigen Edition
CHARACTERISTICS Oil viscosity ν mm /s Q f (p) Volume flow pressure characteristics [Type: S4D4-8] S % K88_ Q f (p) K99_ Volume flow pressure characteristics [Type: V4D4-8] S % Q f (p) Volume flow pressure characteristics [Type: S4D4-4] S % Q f (p) Volume flow pressure characteristics [Type: V4D4-4] S %, 7,, K89_, 7,, K_ Q f (s, x) Volume flow-signal-characteristics ( p bar) [Type: S4D4] K77_ (s corresponds to preset value signal and x corresponds to spool stroke) Q f (s, x) Volume flow-signal-characteristics ( p bar) [Type: V4D4] K776_ (s corresponds to preset value signal and x corresponds to spool stroke) Factory settings: Deadband: Both solenoids switched off with command signal - % + % Opening point: at command signal ± 4 % Flow at p bar over metering edges at command signal ±7 % 4, l/min for Q N 8 l/min, l/min for Q N 4 l/min Factory settings: Deadband: Both solenoids switched off with command signal - % + % Opening point: at command signal ± 4 % Flow at p bar over metering edges at command signal ±7 % 4, l/min for Q N 8 l/min,9 l/min for Q N 4 l/min Legend: : Q N 4 l/min : Q N 8 l/min Frequency response [all types] ( p bar, P T < bar) Amplitude [db] - -6-9 K9_ Phase [ ] 8,, Frequency [Hz] Signal amplitude 9% Signal amplitude % 9 NOTE! All values measured over metering edges, A and B ports linked. Wandfluh AG Tel. +4 67 7 7 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfluh.com Data subject to change.-7e /4 CH-74 Frutigen Edition
6 ) & * % Proportional spool valves DIMENSIONS With analog interface,, 4 X maiting connector X 8 69 6 ø9, ( 6 ) Ø, 6, 64 8,7 With fieldbus interface,, 4 X X X ø9, ( 6 ) 69 ø, 8 " 6, 64 6,,7 6 " NOTE! The cable connector is not part of the delivery. The dimensions refer to those of the cable connector in the chapter «Accessories». PARTS LIST Position Article Description 6. Cover.7 Dummy plug M6x, 6.6 O-ring ID,x, 7. Gasket xx9,9x 4 8. Socket head cap screw M4x 46.6 Socket head cap screw M4x6 DIN 9 46.9 Socket head cap screw M4x DIN 9 6 6. O-ring ID,8x,78 ACCESSORIES Set-up software see start-up Cable to adjust the settings through interface USB (from plug type A to Mini B, m) article no. 9.896 Cable connector for analog interface: straight, soldering contact article no. 9. 9, soldering contact article no. 9. Recommended cable size: Outer diameter 9, mm Single wire max. mm Recommended wire size: m,7 mm (AWG8) m mm (AWG7) Technical explanation see data sheet.- Wandfluh AG Tel. +4 67 7 7 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfluh.com Data subject to change.-7e 4/4 CH-74 Frutigen Edition
Proportional directional valve not pressure compensated Q max l/min Q N max l/min p max bar NG4-Mini DESCRIPTION Direct operated proportional spool valve in fl ange design NG4-Mini Interface to Wandfl uh standard with 4 ports. The spool valve is designed to the chamber principle. The volume fl ow is adjusted by a slip-on coil acc. to VDE 8. Low pressure drop due to the body design and spool profi ling. The spool is made of hardend steel. The body made of high grade hydraulic casting for long service life is painted. The armature tube and the plug crew are zinc coated. The solenoid coil is zinc-/nickel-coated. FUNCTION Proportionally to the solenoid current spool stroke, spool opening and valve volume fl ow will increase. Proportional directional valves NG4-Mini are not load-compensated. The optimum spool shape and progressive characteristics curve allow fi ne motion control. To control the valve Wandfl uh proportional amplifi ers are available (see register.). APPLICATION Proportional directional spool valves are well suited for demanding applications where high resolution, high volume fl ow and low hysteresis are requested. They are implemented in industrial hydraulics as well as in mobile hydraulics for the smooth control of hydraulic actuators. Application examples: pitch control of wind generators, forest and earth moving machines, machine tools and paper production machines with simple position controls, robotics and fan control. TYPE CODE Proportional directional valve Flange construction Mounting interface acc. to Wandfl uh standard, NG4-Mini Description of symbols acc. to table.-7/ Nominal volume fl ow Q N 4 l/min 4 8 l/min 8 l/min Standard nominal voltage U N VDC G 4 VDC G4 without solenoid coil X Slip-on coil Metal housing round with one-sided collar V Metal housing square with one-sided collar N* Electric connection Sealing material Manual override Design-Index (Subject to change) W D P F A4 - - - - / - - # Connector socket EN 7-8 / ISO 44 D Connector socket AMP Junior-Timer J Connector Deutsch DT4-P G NBR FKM (Viton) Integrated Push-button Spindle * Only available in conjunction with other nominal voltages and connection versions. (See data sheet.-7) D HF HS GENERAL SPECIFICATIONS Nominal size NG4-Mini to Wandfl uh standard Ambient temperature - +7 C (slip-on coil «V») Designation Direct operated proportional spool valve if + C, then I G - % Construction Direct operated spool valve - +7 C (slip-on coil «N») Betätigungsart Proportional solenoid Mounting position any, preferably horizontal Mounting Flange, fi xing holes for Fastening torque M D, Nm (screw quality 8.8) for fi xing socket head cap screws M x 4 screws Connections Connection plates M D Nm for knurled nut Multi-station fl ange subplate Longitudinal stacking system Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-7e /4 CH-74 Frutigen Edition 9
ELECTRICAL SPECIFICATIONS Construction Proportional solenoid, wet pin push type, pressure tight Standard-Nominal voltage U N VDC U N 4 VDC Limiting current I G ma I G 6 ma Relative duty factor % DF (see data sheet.-4) Protection class Connection version to EN 69 D: IP 6 J: IP 66 G: IP 67 and 69 K Connection/Power supply Over device plug connection Other electrical specifi cations see data sheet.-68 (V).-7 (N) HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination effi ciency ISO 446:999, class 8/6/ (Required fi ltration grade ß 6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure in port P, A, B Tank pressure in port T Nominal volume fl ow Max. volume fl ow Leakage volume fl ow Hysteresis p max bar (p T < bar) p max bar (p T bar) p T max 6 bar Q N 4 l/min, 8 l/min, l/min see characteristic on request % at optimal dither signal MANUAL OVERRIDE - Integrated ( ) Actuation pin integrated in the armature tube. - Push-button (HF) integrated in the knurled nut. Actuation by pressing the pin - Spindle (HS) integrated in the knurled nut. Actuation by turning the spindle (infi nitely variable valve actuation) Weight 4/-way 4/-way ( solenoid) m, kg m,9 kg TYPE CHARTS / DESIGNATIONS OF SYMBOLS ACB - S S Symmetrical control mode ACB - V V Meter-in control mode AC - S S Symmetrical control mode AC - V V Meter-in control mode CB - S S Symmetrical control mode CB - V V Meter-in control mode ACB - R R Meter-out control mode ADB - V V Meter-in control mode AC - R R Meter-out control mode AD - V V Meter-in control mode CB - R R Meter-out control mode DB - V V Meter-in control mode Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-7e /4 CH-74 Frutigen Edition 9
CHARACTERISTICS oil viscosity υ mm /s Q f (p) Volume fl ow pressure characteristics (I I G ) [Types: ACB-S, AC-S, CB-S] K447 p [bar] Q f (I) Volume fl ow adjustment characteristics ( p bar) [Types: ACB-V, AC-V, CB-V, ADB-V, AD-V, DB-V] K446 4 8 6 4 - -8-6 -4-4 6 8 l [%] I G p f (Q) Pressure loss/fl ow characteristics (I I G ) [Types: ACB-S, AC-S, CB-S] p [bar] K448 4 Q f (p) Volume fl ow pressure characteristics (I I G ) [Types: ACB-R, AC-R, CB-R] K4 6 9 p [bar] Q f (I) Volume fl ow adjustment characteristics ( p bar) [Types: ACB-S, AC-S, CB-S] K449 4 8 6 4 - -8-6 -4-4 6 8 l [%] I G p f (Q) Pressure loss/fl ow characteristics (I I G ) [Types: ACB-R, AC-R, CB-R] p [bar] K49 4 6 9 Q f (p) Volume fl ow pressure characteristics (I I G ) [Types: ACB-V, AC-V, CB-V, ADB-V, AD-V, DB-V] K444 p [bar] Q f (I) Volume fl ow adjustment characteristics ( p bar) [Types: ACB-R, AC-R, CB-R] K7 8 6 4 - -8-6 -4-4 6 8 l [%] I G p f (Q) Pressure loss/fl ow characteristics (I I G ) [Types: ACB-V, AC-V, CB-V, ADB-V, AD-V, DB-V] p [bar] K44 4 6 9 Legend: : Q N 4 l/min : Q N 8 l/min : Q N l/min NOTE! All values measured over metering edges, A and B ports linked. Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-7e /4 CH-74 Frutigen Edition 9
DIMENSIONS 4/-way valve 4/-way valve A B A Ø9. Ø. 76. Ø7 6 8 9.6 7 6 7.7 7. 8. PARTS LIST Druckknopf Push-button 4.. 8 P 8 4 Position Article Description A B 4 7 6... V.E7/9x T T 6. 6.6 6 6.87 6.687 7 4.7 Knurled nut O-ring ID,8x,78 (NBR) O-ring ID,8x,78 (FKM) O-ring ID 8,7x,6 (NBR) O-ring ID 8,7x,6 (FKM) Spindel Spindle 44.. 9 8.7 Push-button HF 9.7 Spindle HS ACCESSORIES Threaded connecting plates, Multi-fl ange subplates and Longitudinal stacking system see Reg..9 Proportional amplifi er see Reg.. Mating connector (A) EN7-8 article no. 9. Mating connector (B) EN 7-8 article no. 9. Technical explanation see data sheet.- Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-7e 4/4 CH-74 Frutigen Edition 9
Proportional directional valve not pressure compensated Q max l/min Q N max l/min p max bar NG4 ISO 44- DESCRIPTION Direct operated proportional spool valve in fl ange design NG4 to ISO 44- with 4 ports. The spool valve is designed to the chamber principle. The volume fl ow is adjusted by a slip-on coil acc. to VDE 8. Low pressure drop due to the body design and spool profi ling. The spool is made of hardend steel. The body made of high grade hydraulic casting for long service life is painted. The armature tube and the plug crew are zinc coated. The solenoid coil is zinc-/nickel-coated. FUNCTION Proportionally to the solenoid current spool stroke, spool opening and valve volume fl ow will increase. Proportional directional valves NG4 ISO 44- are not load-compensated. The optimum spool shape and progressive characteristics curve allow fi ne motion control. To control the valve Wandfl uh proportional amplifi ers are available (see register.). APPLICATION Proportional directional spool valves are well suited for demanding applications where high resolution, high volume fl ow and low hysteresis are requested. They are implemented in industrial hydraulics as well as in mobile hydraulics for the smooth control of hydraulic actuators. Application examples: pitch control of wind generators, forest and earth moving machines, machine tools and paper production machines with simple position controls, robotics and fan control. TYPE CODE Proportional directional valve Flange construction International standard interface ISO, nominal size 4 Description of symbols acc. to table.-74/ Nominal volume fl ow Q N 4 l/min 4 8 l/min 8 l/min Standard nominal voltage U N VDC G 4 VDC G4 without solenoid coil X Slip-on coil Metal housing round with one-sided collar V Metal housing square with one-sided collar N* Electric connection Sealing material Manual override Design-Index (Subject to change) W D P F B4 - - - - / - - # Connector socket EN 7-8 / ISO 44 D Connector socket AMP Junior-Timer J Connector Deutsch DT4-P G NBR FKM (Viton) Integrated Push-button Spindle * Only available in conjunction with other nominal voltages and connection versions. (See data sheet.-7) D HF HS GENERAL SPECIFICATIONS Nominal size NG4 to ISO 44- Ambient temperature - +7 C (slip-on coil «V») Designation Direct operated proportional spool valve if + C, then I G - % Construction Direct operated spool valve - +7 C (slip-on coil «N») Betätigungsart Proportional solenoid Mounting position any, preferably horizontal Mounting Flange, 4 fi xing holes for Fastening torque M D, Nm (screw quality 8.8) for fi xing socket head cap screws M x 4 screws Connections Connection plates M D Nm for knurled nut Multi-station fl ange subplate Longitudinal stacking system Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-74e /4 CH-74 Frutigen Edition 9
ELECTRICAL SPECIFICATIONS Construction Proportional solenoid, wet pin push type, pressure tight Standard-Nominal voltage U N VDC U N 4 VDC Limiting current I G ma I G 6 ma Relative duty factor % DF (see data sheet.-4) Protection class Connection version to EN 69 D: IP 6 J: IP 66 G: IP 67 and 69 K Connection/Power supply Over device plug connection Other electrical specifi cations see data sheet.-68 (V).-7 (N) HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination effi ciency ISO 446:999, class 8/6/ (Required fi ltration grade ß6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure in port P, A, B p max bar Tank pressure in port T p T max 6 bar Nominal volume fl ow Q N 4 l/min, 8 l/min, l/min Max. volume fl ow see characteristic Leakage volume fl ow on request Hysteresis %* * at optimal dither signal MANUAL OVERRIDE - Integrated ( ) Actuation pin integrated in the armature tube. - Push-button (HF) integrated in the knurled nut. Actuation by pressing the pin - Spindle (HS) integrated in the knurled nut. Actuation by turning the spindle (infi nitely variable valve actuation) Weight 4/-way 4/-way ( solenoid) m, kg m,9 kg TYPE CHARTS / DESIGNATIONS OF SYMBOLS ACB - S S Symmetrical control mode ACB - V V Meter-in control mode AC - S S Symmetrical control mode AC - V V Meter-in control mode CB - S S Symmetrical control mode CB - V V Meter-in control mode ACB - R R Meter-out control mode ADB - V V Meter-in control mode AC - R R Meter-out control mode AD - V V Meter-in control mode CB - R R Meter-out control mode DB - V V Meter-in control mode Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-74e /4 CH-74 Frutigen Edition 9
CHARACTERISTICS oil viscosity υ mm /s Q f (p) Volume fl ow pressure characteristics (I I G ) [Types: ACB-S, AC-S, CB-S] K4 p [bar] Q f (I) Volume fl ow adjustment characteristics ( p bar) [Types: ACB-V, AC-V, CB-V, ADB-V, AD-V, DB-V] K4 4 8 6 4 - -8-6 -4-4 6 8 l [%] I G p f (Q) Pressure loss/fl ow characteristics (I I G ) [Types: ACB-S, AC-S, CB-S] p [bar] K44 4 Q f (p) Volume fl ow pressure characteristics (I I G ) [Types: ACB-R, AC-R, CB-R] K4 6 9 p [bar] Q f (I) Volume fl ow adjustment characteristics ( p bar) [Types: ACB-S, AC-S, CB-S] K4 4 8 6 4 - -8-6 -4-4 6 8 l [%] I G Q f (p) Volume fl ow pressure characteristics (I I G ) [Types: ACB-V, AC-V, CB-V, ADB-V, AD-V, DB-V] K4 p [bar] p f (Q) Pressure loss/fl ow characteristics (I I G ) [Types: ACB-R, AC-R, CB-R] p [bar] K4 4 6 9 Q f (I) Volume fl ow adjustment characteristics ( p bar) [Types: ACB-R, AC-R, CB-R] K6 8 6 4 - -8-6 -4-4 6 8 l [%] I G p f (Q) Pressure loss/fl ow characteristics (I I G ) [Types: ACB-V, AC-V, CB-V, ADB-V, AD-V, DB-V] p [bar] K4 4 6 9 Legend: : Q N 4 l/min : Q N 8 l/min : Q N l/min NOTE! All values measured over metering edges, A and B ports linked. Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-74e /4 CH-74 Frutigen Edition 9
DIMENSIONS 4/-way valve 4/-way valve A B A Ø 9. Ø. 76. Ø 7 6 8 9.6 8 7 7.7 7. 8. Push-button Druckknopf 4.. 9 T 4.4 6 PARTS LIST. A B 8 4 Position Article Description 6... V.E7/9x 6.6 6.66 6 6.76 6.676 O-ring ID 6,7x,78 (NBR) O-ring ID 6,7x,78 (FKM) O-ring ID 7,6x,78 (NBR) O-ring ID 7,6x,78 (FKM) Spindle Spindel 44.. P 4. 6. 7 6.87 6.687 O-ring ID 8,7x,6 (NBR) O-ring ID 8,7x,6 (FKM) 8 4.7 Knurled nut 9.7 Push-button.7 Spindle ACCESSORIES Threaded connecting plates, Multi-fl ange subplates and Longitudinal stacking system see Reg..9 Proportional amplifi er see Reg.. Mating connector (A) EN7-8 article Nr. 9. Mating connector (B) EN 7-8 article Nr. 9. Technical explanation see data sheet.- Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-74e 4/4 CH-74 Frutigen Edition 9
Proportional directional valve not pressure compensated Q max 4 l/min Q N max l/min p max bar NG6 ISO 44- DESCRIPTION Direct operated proportional spool valve in fl ange design NG6 acc. to ISO 44-/779 with 4 ports. The spool valve is designed to the chamber principle. The volume fl ow is adjusted by a Wandfl uh proportional solenoid (VDE standard 8). Low pressure drop due to the body design and spool profi ling. The spool is made of hardend steel. The body made of high grade hydraulic casting for long service life is painted. The armature tube and the plug crew are zinc coated. The solenoid coil is zinc-/ nickel-coated. FUNCTION Proportionally to the solenoid current spool stroke, spool opening and valve volume fl ow will increase. Proportional directional valves NG6 are not load-compensated. The optimum spool shape and progressive characteristics curve allow fi ne motion control. To control the valve Wandfluh proportional amplifiers are available (see register.). APPLICATION Proportional directional spool valves are well suited for demanding applications where high resolution, high volume fl ow and low hysteresis are requested. They are implemented in industrial hydraulics as well as in mobile hydraulics for the smooth control of hydraulic actuators. Application examples: pitch control of wind generators, forest and earth moving machines, machine tools and paper production machines with simple position controls, robotics and fan control. TYPE CODE Spool valve Direct operated Proportional Flange construction International standard interface ISO, nominal size 6 Description of symbols acc. to table.-77/ Nominal volume fl ow Q N l/min l/min 6 l/min 6 l/min Standard nominal voltage U N VDC G 4 VDC G4 without solenoid coil X Slip-on coil Metal housing, round W * Metal housing, square M * Electric connection Sealing material Manual override Design-Index (Subject to change) W D P F A6 - - - - / - # Connector socket EN 7-8 / ISO 44 D Connector socket AMP Junior-Timer J Connector Deutsch DT4-P G NBR FKM (Viton) Integrated Push-button Spindle D GENERAL SPECIFICATIONS Nominal size NG6 acc. to ISO 44- / 779 Ambient temperature - +7 C (slip-on coil «W») Designation Direct operated proportional spool valve if + C, then I G - % Construction Direct operated spool valve - +7 C (slip-on coil «*M») Operation Proportional solenoid Mounting position any, preferably horizontal Mounting Flange, 4 fi xing holes for Fastening torque M D, Nm (screw quality 8.8) socket head cap screws M x for fi xing screws Connections Connection plates M D 7 Nm for knurled nut Multi-station fl ange subplate Longitudinal stacking system HF HS * Only available in conjunction with other nominal voltages and connection versions (see data sheet.-8) Weight 4/-way 4/-way ( solenoid) m, kg m, kg Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-77e /4 CH-74 Frutigen Edition 47
Proportional spool valves ELECTRICAL SPECIFICATIONS Construction Proportional solenoid, wet pin push type, pressure tight Standard-Nominal voltage U N VDC U N 4 VDC Limiting current on request I G 9 ma Relative duty factor % DF (see data sheet.-4) Protection class Connection version to EN 69 D: IP 6 J: IP 66 G: IP 67 and 69 K Connection/Power supply Over device plug connection Coil versions W.E4 / x (data sheet.-8) Other electrical specifi cations see data sheet.-8 (W).-8 (M) HYDRAULIC SPECIFICATIONS Fluid Mineral oil, other fl uid on request Contamination effi ciency ISO 446:999, class 8/6/ (Required fi ltration grade ß 6 7) refer to data sheet.-/ Viscosity range mm /s mm /s Fluid temperature - +7 C Working pressure in port P, A, B p max bar Tank pressure in port T p T max bar Nominal volume fl ow Q N l/min, l/min, 6 l/min, l/min Max. volume fl ow see characteristic Leakage volume fl ow on request Hysteresis % at optimal dither signal MANUAL OVERRIDE - Integrated ( ) Actuation pin integrated in the armature tube. - Push-button (HF) integrated in the knurled nut. Actuation by pressing the pin - Spindle (HS) integrated in the knurled nut. Actuation by turning the spindle (infi nitely variable valve actuation) TYPE CHARTS / DESIGNATIONS OF SYMBOLS 6 ACB - S S Symmetrical control mode 6 ADB - V V Meter-in control mode 6 AC - S S Symmetrical control mode 6 CB - S S Symmetrical control mode Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-77e /4 CH-74 Frutigen Edition 47
CHARACTERISTICS oil viscosity υ mm /s Q f (p) Volume fl ow pressure characteristics (I I G ) [Types: ACB-S, AC-S, CB-S] 4 K Q f (p) Volume fl ow pressure characteristics (I I G ) [Type: ADB-V] 4 K6 p f (Q) Pressure loss/fl ow characteristics (I I G ) [Types: ACB-S, AC-S, CB-S] p f (Q) Pressure loss/fl ow characteristics (I I G ) [Type: ADB-V] K K 4 8 6 4 8 4 8 6 4 8 Q f (I) Volume fl ow adjustment characteristics ( p bar) [Types: ACB-S, AC-S, CB-S] Q f (I) Volume fl ow adjustment characteristics ( p bar) [Type: ADB-V] K K4 Legend: : Q N l/min : Q N 6 l/min : Q N l/min 4: Q N l/min NOTE! All values measured over metering edges, A and B ports linked Wandfl uh AG Tel. +4 67 7 7 E-mail: sales@wandfl uh.com Illustrations not obligatory Data sheet no. Postfach Fax +4 67 7 Internet: www.wandfl uh.com Data subject to change.-77e /4 CH-74 Frutigen Edition 47