COMPACT CATALOGUE SECTIONAL DIRECTIONAL CONTROL VALVES

Transcription

1 COMAC CAALOGUE SECIONAL DIRECIONAL CONROL VALVES

2 Features Simple, compact and heavy duty designed sectional valve from to sections for open and closed centre hydraulic systems. H Fitted with a main pressure relief valve and a load check valve on every working section H Available with parallel or series circuit. H Optional carry--over port. H A wide variety of service ports and circuit valves. H Available manual, pneumatic, hydraulic, electro--hydraulic, and remote with flexible cables spool control kits. H Diameter 5 mm (.98 in) interchangeable spools. Working conditions his catalogue shows technical specifications and diagrams measured with mineraloil of46 mm /s cst viscosity at 4 C temperature. Nominal flow rating 4 l/min Operating pressure (maximum) parallel circuit 35 bar 46 psi series circuit bar 35 psi Back pressure (maximum) on outlet port 5 bar 36 psi Internal leakage A(B) p= bar - 45 psi fluid and valve at 4 C 4cm 3 /min.4 in 3 /min Fluid Mineral base oil Fluid temperature with NBR (BUNA -N) seals from -- to 8 C with FM (VION) seals from -- to C Viscosity operating range from 5 to 75 mm /s from 5 to 75 cst min. mm /s cst max. 4 mm /s 4 cst Max level of contamination 9/6 -- ISO 446 Ambient temperature from --4 to 6 C NOE - For different conditions please contact Sales Dept. Additional information his catalogue shows the product in the most standard configurations. lease contact Sales Dpt. for more detailed information or special request. WARNING! All specifications of this catalogue refer to the standard product at this date. Walvoil, oriented to a continuous improvement, reserves the right to discontinue, modify or revise the specifications, without notice. WALVOIL IS NO RESONSIBLE FOR ANY DAMAGE CAUSED BY AN INCORREC USE OF HE RODUC. 5 th edition September 3: his edition supersedes all prior documents. DBC5E

3 Dimensional data (parallel circuit) Optional top outlet (mustbeusedincarryover configuration) E Valve type WALVOIL 79 MADE IN IALY roduction batch : = production year () = progressive number F M WALVOIL MADE IN IALY Carry -over C optional osition M osition YE E F Weight E F Weight YE mm in mm in kg lb mm in mm in kg lb SD5/ SD5/ SD5/ SD5/ SD5/ SD5/ SD5/ SD5/ SD5/ SD5/ SD5/ SD5/ Standard threads ORS BS (ISO 8/) UN -UNF (ISO 96 -) Inlet G 5/8-- UN--B (SAE ) A and B ports G 5/6--UN--B(SAE6) Outlet and carry--over C G/4 5/8-- UN--B (SAE ) ILO ORS Hydraulic G/4 9/6--8 UNF--B (SAE 6) neumatic NF /8--7 NF /8--7 DBC5E 3

4 erformance data (pressure drop vs. flow) Open centre From side inlet to side outlet. A B A B ressure drop 4 (bar) 3 sections 8 sections 4 sections section 54 (psi) Flow (l/min) Inlet to work port From side inlet to A port (spool in position ) orb port (spool in position ). A A 4 (bar) 3 54 (psi) B B ressure drop A (B ) A (B ) Flow (l/min) Work port to outlet From A port (spool in position ) orb port (spool in position ) to side outlet. A A 4 (bar) 3 54 (psi) B B ressure drop A (B ) A (B ) Flow (l/min) NOE -- Measured with spool type. 4 DBC5E

5 Hydraulic circuit parallel working sections A B A B 5 8 Ex.: SD5//AC(XG--5)/8L/8L/RC Intermediate pressure compensated flow divider section A B A B 5 8 Ex.: SD5//AC(XG--5)/8L/DFG/8L/RC inlet cover and mid return manifold section A B B A Ex.: SD5//AC(XG--5)/8L/CS/8L/BC(XG--5) DBC5E 5

6 Hydraulic circuit Inlet cover YE CODE DESCRIION AC(YG3) 67 Side inlet with direct pressure relief valve AD(YG3) 67 op inlet with direct pressure relief valve AC(XG) 67 Side inlet with pilot operated pressure relief valve AC(SV) 679 Side inlet with relief valve blanking plug AC(YG3--5) AD(YG3--5) AC(XG--5) AC(SV) Working sections YE CODE DESCRIION -8L 67 arallel S -8L 67 Series A B A B --8L S--8L 6 DBC5E

7 Hydraulic circuit Intermediate sections YE CODE DESCRIION CS 674 Mid return manifold section DFG 674 ressure compensated flow divider section EI(XG) 674 Secondary pilot operated pressure relief valve EI(XG) 6745 Mid inlet with secondary pilot operated pressure relief valve CS DFG EI(XG--5) EI(XG--5) Outlet cover YE CODE DESCRIION RC 673 Side outlet RD 673 op outlet RE 673 op outlet with carry -over RK 673 op outlet with closed centre C RC RD RE RK NOE -- Codes are referred to BS thread. DBC5E 7

8 Assembling parts. M not - wrench 9. AR CODE DESCRIION. 5IR34 ie rod kit for section valve 5IR96 ie rod kit for sections valve 5IR358 ie rod kit for 3 sections valve 5IR4 ie rod kit for 4 sections valve 5IR48 ie rod kit for 5 sections valve 5IR544 ie rod kit for 6 sections valve 5IR66 ie rod kit for 7 sections valve 5IR668 ie rod kit for 8 sections valve 5IR73 ie rod kit for 9 sections valve 5IR79 ie rod kit for sections valve 5IR854 ie rod kit for sections valve 5IR96 ie rod kit for sections valve ie rod tightening torque 5 Nm (36.88 lbft). 5SA37 Brakets kit 8 DBC5E

9 Inlet cover options Description example: FE SD5 / A C (XG - 5) EL -VDC * ressure relief valve setting in bar 4.. SV L 3. X EL. Y SV. Inlet cover body * CODE DESCRIION 5FIA53 AC -AD type body. Inlet port selection * CODE DESCRIION 3XA74 G plug (n. plug required) 4. Inlet valves options YE CODE DESCRIION L 5CAR453 Hydraulic pilot unloader valve (FC.5) EL YCAR4535 VDC electromagnetic controlled unloader valve YCAR453 4 VDC electromagnetic controlled unloader valve SV 3XA53654 Relief valve blanking plug 3. Inlet relief options YE CODE DESCRIION VM5/ pilot operated pressure relief valve type X (standard) (XG -5) X8 Range 5 to 35 bar / 36 to 46 psi standard setting 5 bar / 8 psi VMD5/ direct pressure relief valve type Y (YG3-5) XCAR53 Range 5 to bar / 8 to 9 psi standard setting 5 bar / 8 psi Standard setting is referred to l/min flow. SV 3XA53654 Relief valve blanking plug NOE (*) -- Items are referred to BS thread. DBC5E 9

10 Working section options Description example: EL SD5 / - 8 L. (G3 - ) * mounted on A port. mounted on B port. 3 mounted on A and B ports ort relief valve setting in bar 3.. Working section kits * YE CODE DESCRIION 5EL53 arallel S 5EL53 Series 8 I Include boby, seals, rings and load check valve.. Spool options YE CODE CIRCUI DESCRIION 3CU7 Double acting, 3 positions, with A and B closed in neutral position A 3CU7 Double acting, 3 positions, with A open to tank in neutral position 3CU75 Double acting, 3 positions, with A and B open to tank in neutral position 3 3CU73 Single acting on A, 3 positions, B plugged; requires G plug (see part I) 4 3CU735 Single acting on B, 3 positions, A plugged; requires G plug (see part I) 9B -B -B. 3. A side spool positioners YE CODE DESCRIION 8 5V8 With spring return in neutral position 9B 5V9 With detent in position and spring return in neutral position B 5V9 With detent in position and spring return in neutral position 5V With detent in position, neutral and B 5V With detent in position and, spring return in neutral position 8 5V87 neumatic kit 8EI3 5V835 VDC ON/OFF electro -hydraulic kit 5V835 4 VDC ON/OFF electro -hydraulic kit 8 8EI3 NOE (*) -- Items are referred to BS thread. DBC5E

11 Working section options 5. II 4. B side options U C L SL Q YE CODE DESCRIION L 5LEV Standard lever SL 5CO Without lever, with dust proof plate Q 5EL CD cable connection 5EL5 CG cable connection LCB 5CLO5 Mechanical joystick 5. ort relief options YE CODE DESCRIION Anti -shock valve (G -63) XCAR65 Range 63 to 5 bar / from 9 to 8 psi standard setting 63 bar / 9 psi (G3 -) XCAR66 Range to 5 bar / from 45 to 36 psi standard setting bar / 45 psi (G4 -) XCAR67 Range to 35 bar / from 9 to 46 psi standard setting bar / 9 psi Anti -shock and anti -cavitation valve U(G -63) XCAR36 Range 63 to 5 bar / from 9 to 8 psi standard setting 63 bar / 9 psi U(G3 -) XCAR363 Range to 5 bar / from 45 to 36 psi standard setting bar / 45 psi U(G4 -) XCAR364 Range to 35 bar / from 9 to 46 psi standard setting bar / 9 psi Standard setting is referred to l/min flow. C 3 3XCAR46 Anti -cavitation 3XA5836 A and B ports valve blanking plugs LCB I ort plug * YE CODE DESCRIION G 3XA74 lug for single acting spool II Optional handlevers YE CODE DESCRIION AL/Mx 73 For L lever box L= mm/7.87in AL8/Mx5 735 For LCB joystick L= 5mm/9.84in II For special configurations see pages 3 and 4 DBC5E

12 Spools options A B A B A B A B A B A 3 B 4 B port plugged A port plugged A side spool positioners N/ -7 V V Operating features ilot pressure : min 6 max bar min 87 max 45 psi V V 8 ON/OFF pneumatic kit 5 6 Optional connector code: X Connection ISO L V Operating features Nominal voltage : VDC / 4 VDC ower rating.. : W Duty cycle... : % ilot pressure. : from to 5 bar from 45 to 75 psi 9B B B Feeder kit (see page 3) V L EI3 ON/OFF electro--hydraulic kit DBC5E

13 Electro -hydraulic feeder kit AR YE CODE DESCRIION. KER3 5KER373 kit for section KER3 5KER373 kit for sections KE3R3 5KE3R373 kit for 3 sections KE4R3 5KE4R373 kit for 4 sections KE5R3 5KE5R373 kit for 5 sections KE6R3 5KE6R373 kit for 6 sections. VRE 3XGIU6574 G -/4 back -pressure valve. (carry -over configuration) 3. 4RON44934 G -/4 washer 4. RE 4A466 G 3/4 plug NOE -- Codes are referred to BS thread. Special configurations Hydraulic spool control Operating features Adjustment range : from 5.8 to 9 bar / 84 to 76 psi - diagram 4 Max.pilot pressure : bar / 45 psi Working section kit code 5EL53B (standard body) A B A B IM8IM VA G/4 7.8 VB VA Ex.: EL SD5/--IM 8IM Spool code 3CU74 VB Spool control kit code 5IDR DBC5E 3

14 Special configuration 4 th position floating circuit A 3 A B 53 4th position spool in floating Ex.: EL SD5/ Spool code 3CU74 Spool control kit code 5V Working section kit code 5EL53 (special body) Regenerative circuit A A B 88CR Spool in regenerative Ex.: EL SD5/--8 8CR... Spool code 3CU76 Spool control kit code 5V8 6.4 Working section kit code 5EL534 (special body) A A B 8F8CR Spool out regenerative Ex.: EL SD5/--8F 8CR... Spool code 3CU76 Spool control kit code 5V8 6.4 Working section kit code 5EL53 (standard body) 4 DBC5E

15 Intermediate sections CS3 Mid return manifold. o assemble different sizes of valve. ie rods are special. Available combination SD5 / SD6. SD5 inlet cover and working section SD6 inlet cover and working section A B G -/ A B Description example: SD5//AC(XG--5)/8L/CS3/8L/BC(YG3--75)/SD6/. ie rod kits for SD5 CODE DESCRIION 5IR45 Kit for section 5IR45 Kit for sections 5IR453 Kit for 3 sections 5IR454 Kit for 4 sections 3. Intermediate sections * CODE DESCRIION 6744 Mid return manifold section. ie rod kits for SD6 CODE DESCRIION 5IR46 Kit for section 5IR46 Kit for sections 5IR463 Kit for 3 sections 5IR464 Kit for 4 sections NOE (*) -- Code are referred to BS thread. DBC5E 5

16 Outlet cover options Example: FS SD5 / RC *. 3. RE -RK option. Outlet section parts AR CODE QY DESCRIION. 3FIA53 Outlet section body *. 3XA754 G -/4 plug * Circuit option AR CODE QY DESCRIION 3. 4A466 G 3/4 plug for carry -over (RE) and closed centre (RK) configuration NOE (*) -- Items are referred to BS thread. 6 DBC5E

17 Installation and maintenance he SD5 valve is assembled and tested as per the technical specification of this catalogue. Before the final installation on your equipment, follow the below recommendations: -- the valve can be assembled in any position, in order to prevent working sections deformation and spools sticking mount the product on a flat surface; -- in order to prevent the possibility of water entering the lever box and spool control kit, do not use high pressure wash down directly on the valve; -- prior to painting, ensure plastic port plugs are tightly in place. A A B B C Carry -over configuration Fitting tightening torque - Nm / lbft HREAD YE and C ports A and B ports port BS (ISO 8/) G G G--/4 With O--Ring seal / 73.7 / / 4. With copper washer 9 / / /.6 With steel and rubber washer / 73.7 / / 4. UN--UNF (ISO 96--) 5/8-- UN--B (SAE ) 5/6--UN--B(SAE6) 5/8-- UN--B (SAE ) With O--Ring seal / /.6 / 47.5 NOE -- hese torque are recommended. Assembly tightening torque depends on many factors, including lubrication, coating and surface finish. he manufacturer shall be consulted. DBC5E 7

18 Notes he SD5 valve can be supplied with one coat of opaque black paint (CVN configuration). Example of specification: SD5//AC(XG--5)/8L/8L/RC--<CVN> NOE -- For different color consult Sales Dept. 8 DBC5E

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20 WALVOIL S..A. 4 REGGIO EMILIA IALY VIA ADIGE, 3/D EL FAX E -MAIL: INFO@WALVOIL.COM H: // SALES DEARMEN EL FAX DBC5E