Hydraulics and Electronics Components

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1 Hydraulics and Electronics Components Product Information motion and progress

2 Contents Product Description Type Max. working Volumetric Displace- Page Pressure (Bar) ment cc/rev Pumps Internal Gear QX Internal Gear for low-viscosity fluids QXV External Gear AP 220 0, Power Units Compact UP , Compact UP ,25-1,6 58 Compact UP ,16-0,9 58 Motor/pumps ET 220 0, Displacement Volume cc/rev Motors External Gear APM 220 0, Internal Gear QXM Internal Gear Flow Divider QXT Gerotor BRF-BMS Radial Piston BB Flow rating l/min Directional Monoblock: Valves - Lever operation + ON/OFF Solenoid HDM Lever operation + Proportional Solenoid MU Sectional Valves: - Lever operated; ON/OFF Solenoid HDS and Proportional Solenoid - Lever operated; ON/OFF Solenoid L.8S and Proportional Solenoid - Lever operated; Proportional Solenoid LV pneumatic and hydraulic controls - Lever operated; ON/OFF Solenoid SV and Proportional Solenoid Sub-plare mounting - Lever operated and Proportional Solenoid PV Solenoid Operated Directional Valve W Special Directional Valves W Cartridge Valves Directional Control W Pressure Control D Flow Control M Check Valve R Vertical Stacking Directional Control Valves Assembly Pressure Control Valves Flow Control Valves SM Check Valves SR Special Valves Mobile and System Solution Rotating Mechanism Valves DLHV Fast Traverse Control EGP Seat Valves Monoblock and SVH sectional types WSH Flow control Flow dividers MTDA Priority Flow Control - Manually variable or fixed flow MTKA/MTQA/MTCA Proportional Solenoid SR3G Proportional Solenoid SR3C Differential Lock valves MT..DV Load Control Monoblock Cindy + BBV Valves Cartridge Cindy + BBVC Pipe Rupture Valve ESV + RS Controllers Joysticks F Electronics E ,

3 High Pressure Internal Gear Pumps Type QX long service life negligible flow- and pressure pulsations high volumetric efficiency suitable for special fluids such as HFB, HFC, HFD and bio-degradables suitable for variable-speed drives Technical Data Pressure range 1 Pressure range 2 Pressure range 3 Effective Flow Type Continuous/ Power Maximum Type Continuous/ Power Maximum Type Continuous/ Power Maximum displacement rate 1 Max.interm. require- speed Max.interm. require- speed Max.interm. require- speed norm eff. press ment 2 press ment 2 press ment 2 (cc/rev) (cc/rev) (l/min) (bar) (KW) (min -1 ) (bar) (KW) (min -1 ) (bar) (KW) (min -1 ) QX / QX / QX / QX / QX / QX / QX21/ / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / QX / at pressure p = 1 bar and speed n = 1450 rpm 2 theoretical value at the permitted continuous pressure for mineral oil at n = 1450 rpm 3 max. suction heigh 150 mm at speed n = 1800 rpm 4

4 Description The basic elements ot the QX internal gear pump are the pinion, the internal gear and the gear housing. Including the drive shaft there are only three moving parts. Pressure ranges 3 and 4 have 2 and 3 gear sets respectively Tandem and multiple pumps mean that there are over 1000 possible variations available. Gear ring Crescent Pinion Suction zone Pressure zone Shaft Dimensions Type QX 2.. QX 3.. QX 4.. QX 5.. QX 6.. QX 8.. Pressure range Suction S G 1 G 1 1/4 SAE 1 1/2 SAE 2 SAE 2 1/2 SAE 3 Pressure P G 1/2 G 3/4 SAE 1 SAE 1 1/4 SAE 1 1/2 SAE 2 A B Body Shaft Mounting C N 63 - h8 82,5-0,05 101,60-0,05 127,0-0,05 152,40-0, h8 O V D 20 - j j j j j j6 E F G 22, ,5 67 I K 82, ,5 152, L M 1) ) 69,5 114,5 1) ) ) ) T Z , ,5 125 Weight kg 5 5 6,5 10 9,5 12, ) Port P for pressure range 1 = opposite Port S 5

5 Internal Gear Pumps Type QXV for low-viscosity fluids long service life negligible flow- and pressure pulsations high volumetric efficiency low pump wear suitable for low-viscosity fluids such as aviation jet fuel, diesel fuel, brake fluids, pentosin and HFA Technical Data Pressure range No. of stages Working Pressure Displacement Type Type Type Type Type Type Speed cc/u R.P.M. 005 QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV QXV ) QXV QXV QXV QXV QXV QXV ) 400 QXV ) QXV ) recommended speeds: the lower the speed, the smaller the P/stage (linear relationship) speeds for 50 and 60 Hz 2 Second suction port is necessary for n > 1200 rpm 6

6 Dimensions QXV2 QXV3 QXV4 QXV5 QXV6 QXV8 Pressure range Suction port to SAE J518 1) S G1 3) G1 1/4 3) 1 1/ /2 3 thread thread Pressure port to SAE J518 1) P G1/2 3) 4) G3/4 3) 4) 1 1 1/4 1 1/2 2 thread thread Drain port R G 1/4 G 1/4 G 1/4 G 1/4 G 3/8 G 1/2 Mounting: A oval B (SAE) hole B (Metr.) flange to C ISO 3019/1 (SAE) N (SAE) 82,55 0,05 101,6 0, ,05 152,4 0,05 ISO 3019/2 (metr.) N (Metr.) 63 h8 80 h8 100 h8 125 h8 160 h8 200 h8 O V hole flange X (Metr.) ISO 3019/2 Y (Metr.) Shaft end: D 20 j6 25 j6 32 j6 40 j6 50 j6 63 j6 parallel, to E ISO/R775 2) F G 22, ,5 67 I Housing K 37, ,5 60, Pressure range 1/2/3 L M , Pressure range 4/5/6 L M T Z , ,5 125 Weight kg 5 5 6,5 10 9,5 12, ) for pipe flange dimensions see brochure P ) for other shaft ends, contact Bucher 3) threaded ports to DIN 3852, Part 2 4) pressure port to SAE J 518 is possible for pressure ranges 2 +3 Pressure range:

7 External Gear Pumps Type AP Pressure compensated bearing plate for a high efficiency Double pumps and integrated valves Pressure compensated bearing plate Outrigger bearings Full range of accessories Technical Data Size Displacement max. Pressure min. Shaft Speed max. Shaft Speed P1 P2 P3 R.P.M. R.P.M. cc/u bar bar bar when P P1 when > P1 when P P1 when P > P1 AP0.5/ AP0.5/ AP0.5/ AP0.5/ AP0.5/ APO.5/ APR0.5/ APR0.5/ APR0.5/ APR0.5/ APR0.5/ AP100/ AP100/ AP100/ AP100/ AP100/ AP100/ AP100/ AP100/ AP100/ AP200/ AP200/ AP200/ AP200/ AP200/ AP200/ AP200/ AP200/ AP300/ AP300/ AP300/ AP300/ AP300/ AP300/ AP300/ AP300/ P1 = Continuous pressure P2 = Intermittent pressure P3 = Peak pressure (transient)

8 Description The drive gear (1) rotates the driven gear (2) so that oil is transferred from the suction to the pressure side of the pump. The plates (3) both as bearings for the gears and balance the axial and radial faces in proportion to the operating pressure. 1 - driving gear 2 - driven gear 3 - casings 4 - housing 5 - flange 6 - cover 10 - shaft seal Outline dimensions for Standard Pumps A B AP0.5/ ,5 29 AP0.5/0, ,5 AP0.5/0, ,5 AP0.5/0,9 70,5 32 AP0.5/1, ,5 APO.5/1, ,5 More detailed dimensions of the shaft flange port connections can be found in the External Gear catalogue. Type A B C D E G H I K Ø L M Ø V AP100/1.2 82,5 AP100/1.7 84,4 AP100/ AP100/ ,4 AP100/ , ,9 52,4 26,2 7,1 M7 f8 AP100/5 98,5 AP100/ ,5 AP100/8 109 AP100/ AP200/ AP200/ AP200/ M12 25,4 AP200/ , , ,5 32,5 8,5 x 1,5 f8 AP200/ AP200/ AP200/ AP200/ AP300/ AP300/ AP300/38 133,5 M14 50,8 AP300/45 138, , ,5 x 1,5 f8 AP300/ AP300/ AP300/75 157,5 AP300/

9 External Gear Motor Type APM Single Direction Rotation = APM Reversible = APMR High effeciency Robust construction Also with outrigger bearing (not for APMOS and APMROS) Technical Data Type Displacement max. Pressure Shaft Speed Torque Other P1 P2 P3 RPM Nm Data cc/rev bar bar bar n min n max when P =100 bar APM0.5/ ,75 APM0.5/ ,15 APM0.5/ ,45 APM0.5/ ,90 APMO.5/1,6 1, ,56 APMR0.5/ ,73 APMR0.5/ ,14 APMR0.5/ ,45 APMR0.5/ ,87 APM100/ ,6 APM100/ ,5 APM100/ ,75 APM100/ ,8 APM100/ ,85 APM100/ ,9 APM100/ ,8 APM100/ ,0 APM200/ ,5 APM200/ ,25 APM200/ ,85 APM200/ ,0 APM200/ ,7 APM200/ ,75 APM200/ ,0 APM200 Available on request. APM300/ ,5 APM300/ ,00 APM300/ ,50 APM300/ ,00 APM300/ ,50 APM300/ ,0 APM300/ ,0 APM300/ ,0 Operating temperature range -15 to + 80 C Viscosity range 20 to 700 mm 2 /s Filtration µm max. return pressure without drain 10 bar P1 = Continuous pressure p2 = Intermittent pressure P3 = Peak pressure (Transient) 10

10 Description Gear motors are dimensionally the same as the corresponding pumps and in operation provide the opposite function to the pumps. (However it is not possible to convert a pump into a motor.) Due to the internal seal layout these motors are single direction rotation and cannot be driven in reverse. Internal leakage oil is fed internally to the low pressure side. 1 - gear wheels 2 - gear wheels 3 - casings 4 - housing 5 - flange 6 - cover 10 - shaft seal Outline dimensions for Standard Motors A B APM0.5/0, ,5 APM0.5/0, ,5 APM0.5/0,9 70,5 32 APM0.5/1, ,5 Dimensions also apply to APMR Ports Suction Pressure G 1/4 Drain Port for APMR = 1/8 More detailed dimensions of the shaft flange port connections can be found in the External Gear catalogue. Type A B C D E G H I K Ø L M Ø V APM100/1.7 84,4 APM100/ APM100/ ,4 APM100/ , ,9 52,4 26,2 7,1 M7 f8 APM100/5 98,5 APM100/ ,5 APM100/8 109 APM100/ APM200/ APM200/ APM200/ M12 25,4 APM200/ , , ,5 32,5 8,5 x 1,5 f8 APM200/ APM200/ APM200/ APM300/ APM300/ APM300/38 133,5 APM300/45 138,5 M14 50,8 APM300/ , ,5 x 1,5 f8 APM300/ APM300/75 157,5 APM300/

11 Internal Gear Unit Type QXM low noise levels negligible flow- and pressure pulsations 400 bar maximum pressure hydrodynamic bearing support ensures long service life suitable for special fluids such as HFB, HFC, HFD and bio-degradables suitable for variable-speed operation 4-quadrant (fully bi-directional pump/motor) or 2-quadrant operation is possible Technical data 12 Displacement/consumption Maximum speed 3) Type Cont.-/ Torque cc/rev rpm Interm. pressure 2) 1) nom. eff. as a pump as a motor bar Nm , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / , QXM / QXM / , QXM / , QXM /125 Pressure range 2 3 Displacement/ Maximum speed 3) Typ Cont.-/ Torque Type Cont.-/ Torque consumption rpm Interm. 2) Interm. 2) cc/rev pressure pressure 1) 1) nom. eff. as a pump as a motor bar Nm bar Nm 005 5,1 QXM QXM , , QXM / QXM /400 32, ,0 QXM ,5 QXM , ,0 QXM ,5 QXM , , QXM /250 42,0 QXM /400 64, ,6 QXM ,0 QXM , ,3 QXM ,0 QXM , , QXM /250 84,0 QXM43/ / , ,3 QXM ,0 QXM , ,2 QXM ,0 QXM , , QXM / ,0 QXM / , ,5 QXM ,0 QXM , ,1 QXM ,0 QXM , , QXM / ,0 QXM / , ,6 QXM ,0 QXM , , QXM ,0 QXM , , QXM / ,0 QXM / , , QXM ,0 QXM ,0 1) Intermittent pressure for max. 20 sec/min but not more than 10% of the duty cycle 2) Theoretical value at the maximum permitted continuous pressure. For starting torques 3) For higher speed contact Bucher Hydraulics

12 Dimensions Frame size Pressure range Service ports to SAE J518 1) 4) P1,P2 G 1/2 3) G 3/4 3) 1 1 1/4 1 1/2 2 thread thread Drain port to: DIN 3852 PL G 1/4 G 1/4 G 1/4 G 1/4 G 3/8 G 1/2 Part 2 Mounting: oval A hole flange to B 100 (metr.) 106 (SAE) 146 (SAE) 181 (SAE) 229 (SAE) 280 (metr.) ISO 3019/1 C (SAE-sizes 3 6) N 63 h8 (metr.) 82,55 0,05 (SAE) 101,6 0,05 (SAE) 127 0,05 (SAE) 152,4 0,05 (SAE) 200 h8 (metr.) ISO 3019/2 O 8,5 8,5 10,5 12,5 16,5 20 (Metr.-sizes 2+8) V Shaft end: D 20 j6 25 j6 32 j6 40 j6 50 j6 63 j6 parallel, to E ISO/R775 2) F G 22, ,5 67 I Housing K 37, ,5 60, L M , T Z , ,5 125 Weight kg 5 5 6,5 10 9,5 12, ) for 3000 psi pipe flange dimensions see brochure P ) for other shaft ends, contact Bucher 3) threaded ports to DIN 3852, Part 2 Pressure range 3 P1 + P2 13

13 Internal Gear Flow Divider Type QXT high efficiency a very wide range of division ratios is available the inlet flow can be divided into as many as four portions high division accuracy also suitable for special fluids such as HFC, environmentally friendly or low viscosity fluids Technical data Type Outlet displacement Cont./Interm. Speed Maximum inlet flow Q 0 pressure 1) max/min 2 outlet flows 3 outlet flows 4 outlet flows cc/rev bar rpm l/min l/min l/min QXT / / QXT / / QXT / / QXT / / QXT / / QXT / / Dimensions Frame size J2 (SAE) G 1/4 G 1 1/ /2 4 E (SAE) G 1/2 G 3/ /4 1 1/2 2 K , ,5 282,5 L Z , ,5 125 Q , ,5 Y

14 Gerotor Motors Without drain line Integrated speed sensor Integrated valves Parking brake or wheel hub Output torques from 115 up to 3900 Nm Displacements from 52 to 2095 cc/rev Working pressures up to 315 bar Description Gerotor motors are slow speed/high torque motors. The power element of this motor is the rotor unit, comprising rotor, outer ring (stator) and 7 cylinders. (BMP has 6 cylinders.) The patented rotor profile prevents direct leakage between the pressure chambers, resulting in negligible internal leakage and volumetric efficiency. Tank area Pressure area Cylinders (7) Outer ring Rotor 15

15 Technical Data Type BRF BDT Type Displacement Shaft Speed Flow rate Pressure drop Torque Weight cont. / Inter. cont. / Inter. cont. / Inter. / peak cont. / Inter. (standard type) V cc / rev n RPM Q ltr. / min p bar M Nm m kg BRF / / / 138 / / 95 7,3 BRF / / / 138 / / 138 7,5 BRF / / / 138 / / 167 7,6 BRF / / / 138 / / 194 7,8 BRF / / / 138 / / 214 6,5 BRF / / / 121 / / 208 8,0 BRF / / / 121 / / 265 8,3 BRF / / / 121 / / 343 8,5 BRF / / / 103 / / 342 9,0 BRF / / / 86 / / 349 9,3 BRF / / / 86 / / ,3 BRE / / / 241 / / ,6 BRE / / / 241 / / ,9 BRE / / / 241 / / ,0 BRE / / / 241 / / ,1 BRE / / / 241 / / ,3 BRE / / / 241 / / ,7 BRE / / / 241 / / ,8 BRE / / / 241 / / ,2 BRE / / / 189 / / ,8 BRE / / / 172 / / ,3 BRE / / / 121 / / ,7 BCE / / / 224 / / ,9 BCE / / / 224 / / ,9 BCE / / / 224 / / ,3 BCE / / / 224 / / ,4 BCE / / / 224 / / ,6 BCE / / / 224 / / ,9 BCE / / / 224 / / ,1 BCE / / / 224 / / ,4 BCE / / / 189 / / ,1 BCE / / / 172 / / ,6 BCE / / / 121 / / ,0 BHB / / / 241 / / 158 8,8 BHB / / / 241 / / 222 9,1 BHB / / / 241 / / 270 9,2 BHB / / / 241 / / 349 9,4 BHB / / / 241 / / 394 9,5 BHB / / / 241 / / 514 9,8 BHB / / / 241 / / ,2 BHB / / / 241 / / ,6 BHB / / / 241 / / ,0 BHB / / / 189 / / ,0 BDR / / / 241 / / ,9 BDR / / / 241 / / ,3 BDR / / / 241 / / ,6 BDR / / / 241 / / ,8 BDR / / / 241 / / ,1 BDR / / / 207 / / ,8 BDR / / / 172 / / ,3 BDR / / / 138 / / ,7 BDT / / / 241 / / ,2 BDT / / / 224 / / ,8 BDT / / / 224 / / ,4 BDT / / / 207 / / ,9 BDT / / / 207 / / ,3 BDT / / / 172 / / ,4 BDT / / / 172 / / ,3 BDT / / / 121 / / ,3 BDT / / / 121 / / ,3 16

16 Technical Data Type BMP BMT Type Displacement Shaft Speed Flow rate Pressure drop Torque Weight cont. / Inter. cont. / Inter. cont. / Inter. / peak cont. / Inter. (standard type) V cc / rev n RPM Q ltr. / min p bar M Nm m kg BMP , / / / 175 / / 105 5,4 BMP ,7 810 / / / 175 / / 175 5,6 BMP ,9 650 / / / 175 / / 215 5,8 BMP ,6 520 / / / 175 / / 275 5,9 BMP ,5 400 / / / 175 / / 355 6,2 BMP-200* 197,8 325 / / / 175 / / 425 6,5 BMP-200** 197,8 325 / / / 140 / / 425 6,5 BMP-250* 247,2 250 / / / 140 / / 435 6,8 BMP-250** 247,2 250 / / / 125 / / 410 6,8 BMP-320* 316,9 210 / / / 125 / / 465 7,4 BMP-320** 316,9 210 / / / 100 / / 390 7,4 BMR ,8 775 / / / 175 / / 130 5,6 BMR ,4 750 / / / 175 / / 200 5,8 BMR ,7 600 / / / 175 / / 240 6,0 BMR ,9 475 / / / 175 / / 300 6,1 BMR-160* 162,9 375 / / / 175 / / 380 6,4 BMR-160** 162,9 375 / / / 175 / / 380 6,4 BMR-200* 203,6 300 / / / 175 / / 450 6,7 BMR-200** 203,6 300 / / / 140 / / 390 6,7 BMR-250* 251,7 240 / / / 140 / / 470 7,0 BMR-250** 251,7 240 / / / 110 / / 380 7,0 BMR-320* 325,8 190 / / / 125 / / 510 7,6 BMR-320** 325,8 190 / / / 90 / / 380 7,6 BMR-400* 407,2 170 / / / 85 / / 460 8,2 BMR-400** 407,2 170 / / / 75 / / 410 8,2 BMD ,8 775 / / / 175 / / 130 8,5 BMD ,4 810 / / / 175 / / 200 8,7 BMD ,7 650 / / / 175 / / 240 8,9 BMD ,9 520 / / / 175 / / 300 9,1 BMD-160* 162,9 400 / / / 175 / / 380 9,4 BMD-160** 162,9 400 / / / 175 / / 380 9,4 BMD-200* 203,6 325 / / / 175 / / 450 9,6 BMD-200** 203,6 325 / / / 140 / / 390 9,6 BMD-250* 251,7 250 / / / 140 / / 470 9,9 BMD-250** 251,7 250 / / / 110 / / 380 9,9 BMD-320* 325,8 210 / / / 125 / / ,5 BMD-320** 325,8 210 / / / 100 / / ,5 BMD-400* 407,2 170 / / / 100 / / ,1 BMD-400** 407,2 170 / / / 75 / / ,1 BMS ,4 810 / / / / ,2 BMS , / / / / ,5 BMS ,9 600 / / / / ,8 BMS ,9 470 / / / / ,2 BMS ,6 375 / / / / ,6 BMS ,7 300 / / / / ,1 BMS , / / / / ,0 BMT / / / / ,9 BMT ,3 625 / / / / ,4 BMT ,6 500 / / / / BMT ,1 380 / / / / ,9 BMT ,7 305 / / / / ,9 BMT ,4 250 / / / / ,9 *=shaft cylindres Ø 32 mm cont. = continuous Inter. = Intermittent (max. 10 % of the duty cycle) Peak = 1% of the duty cycle ** = shaft cylindres Ø 25 mm 17

17 Radial Piston Motors Type BB High starting torque (84%) No run out even at low speed Motors can be engaged / disengaged while under load Automatic free wheel and two speed motors as standard Direct wheel mounting Technical Data Type Displacement Peak Pressure Working Pressure Torque NM Power Speed cc/u (= Size) bar bar (up to 250 bar) (up to 300 bar*) kw R.P.M. BB BB BB BB BB BB BB BB BB BB BB BB BB BB BB Operating Temperature C - 45 to + 75 Viscosity mm 2 /s 20 to 50 Viscosity Index Vi min 100 Contamination Level max. Class 10 to NAS 1638 Fluid HLP Mineral Oil to DIN Part 2 and SAE-HD Motor Oil Mounting Piston any 18

18 Description The hydraulic oil from the inlet is fed over the distributor plate to the pistons, which execute a power stroke. The oil pushes the pistons radially outwards, so that the cam cylinders attached to the pistons press against the cam ring which is firmly attached to the motor housing, thereby forcing the motor housing, as well as the oil distributor, to rotate. As soon as the piston reaches the end of its power stroke the rotating oil distributor closes the inlet opening and opens the outlet. The piston is then pushed back through the cam in the cylinder and the oil flows away through the return piping. The change in rotational direction of the motor is carried out by changing over the inlet flow direction. This can also be done during operation and without stopping. Distributor Cam ring Cam cylinder Piston Cylinder Outline dimensions Housing with disc brake Housing with drum brake Standard Housing Displacement Weight 1 Min. A B Ø C Ø D Ø E Ø F G H Ø I J cc/u kg Rim mm mm mm mm mm mm mm mm mm max.mm size 125 / 160 / x M 12 x 1,5 96, / 315 / x M 12 x 1,5 129, / 630 / x M 18 x 1,5 160, / 1250 / x M 20 x 1,5 220, / 2500 / , x M 22 x 1,5 280, / 5000 / x M 22 x 1,5 370,

19 Monoblock Directional Control Valves Type HDM Lever control Electro hydraulic on/off Parallel and series circuits Unload in neutral, high pressure carryover Ancillary Valves: shock- and anticavitation valves, shock valves, check valves Technical Data HDM 140 HDM 11 P HDM 11 S HDM 18 HDM 19 Number of spools Flow rate l/min Inlet pressure max. bar Return pressure max. bar Fluid Mineral Oil to DIN Operating temperature C - 20 to + 80 Viscosity range mm 2 /s 16 to 75 Filtration µ 30 Directional valve Operator Lever / cable control / electro hydraulic (on/off) / electro hydraulic proportional Spool types (standard) = A = C = G = S = Z Ancillaries Circuits Pressure valve / shock valve / anticavitation valve / shock and anticavitation valve Parallel (standard) / series / power beyond 20

20 System description The valves of the HDM range are compact monobloc valves, available in 4 sizes. With the combination of different directional valves, stops, operators and shock- and/or anti-cavitation valves valves* this monobloc is adaptable to any requirements. The HDM valves are available with open centre, high pressure carryover or closed centre operation. * Only with HDM 11 S, HDM 19 Dimensions Lever Lengths Lo HDM HDM HDM HDM L O A B C E F G P T A + B HDM 140* M 18 x 1,5 HDM 11 P 51,3 28,6 x S + 128,6 28, M 18 x 1,5 / 3/8 BSP HDM 11 S 53,0 36 x S M 18 x 1,5 / 3/8 BSR 1/2 BSP HDM 19 contact Bucher Hydraulics HDM x S M 18 x 1,5 oder 1/2 M 22 x 1,5 M 22 x 1,5 S = Number of spools -1 * Single section valve only 21

21 Directional Control Valve Type HDS Lever operation Electrohydraulic on/off and proportional operation Open centre, closed centre and high pressure carryover Shock, anticavitation and combined shock and anticavitation valves Pilot operated check valves Priority flow control valves Technical Data HDS 11 HDS 15 HDS 19 HDS 20 HDS 30 Number of spools Flow rate l/min Inlet pressure bar Return pressure max. bar Fluid Mineral Oil to DIN Operating temperature C - 20 to + 80 Viscosity range mm 2 /s 16 to 75 Filtration µ 30 Directional valve Operator Lever / joystick for 2 valves / cable control / hydraulic or pneumatic on/off electro hydraulic (on/off) / electro hydraulic proportional Spool types (standard) = A = C = G = S = Z Ancillaries Pressure / shock / anticavitation / shock and anticavitation / proportional flow control pilot operated checks / pressure control Circuits Parallel (standard) / series / power beyond / load sensing 22

22 System description The HDS valve range represents a flexible unit construction, the elements of which may be combined into one valve unit as required. The valves are available connected in parallel and in series circuits. A typical valve unit comprises an inlet plate, the directional control valve sections and end plate. With all valves in neutral the flow returned to the tank (open centre). In addition high pressure carry over or closed centre circulation are available. Dimensions Lever Length Lo HDS HDS HDS HDS HDS L O A B C D E F G P + T A + B HDS ,8 x W + 101,6 31, M 18 x 1,5 HDS x W M 18 x 1,5 HDS 19 contact Bucher Hydraulics HDS x W M 22 x 1,5 or 3/4 M 18 x 1,5 or 1/2 HDS x W /4 W = Width of directional sections (max. 10 sections per control block) 23

23 Directional Control Valve Type L.8S Electrohydraulic proportional control Load Sensing capability Wide range of functions Various inlet sections to allow operation with all types of pump Load independent flow control in parallel operation Flexible range for constructing a mobile hydraulic using a modular concept Systems Data Nominal flow l/min max. 150 Flow rat, port A + B l/min max. 90 Inlet pressure, port P + D bar max. 315 Inlet pressure, port A + B bar max. 315 Pear pressure, max. 10 sec/min bar max. 330 Return pressure bar max 200 Fluid Mineral oil to DIN Fluid temperature range C 20 bis +80 Viscosity range mm 2 /s 10 bis 380 Oil cleanliness NAS 1638 class 9, ISO/DIN 4406 class 20 / 17 / 14 Directional valve Operator Lever / cable operation / on/off solenoid and proportional solenoid, directly and pilot operated Pneumatic and hydraulic controls Voltage 12 and 24 V D.C. (all usual plug/socket are available) Spool types Function sections 2 way press. comp. / 3 way press. comp. / individual press. comp. / priority pressure compensation / malt: way pressure compensation / over centre valves Shock valves / pressure compensated flow control / manual override / flow pilot valve / closed loop flow control 24

24 System description The L.8S valve range represents a flexible unit construction, the elements of which, according to requirements and application, may be combined in one valve unit. A typical valve unit working with a constant flow pump contains a three-way pressure compensator directional control valves and the required end plate. The pump may be attached to the unit by any hydraulic connection. With all of the directional valves in the neutral position the three way compensator unloads total input flow to tank at virtually no pressure drop. When one of the directional control valves is actuated the consumer pressure is transmitted to the three-way pressure level via the control channel. This maintains the pressure drop between the pressure- and control gallery inside the unit, so that the flow to the consumer is always constant irrespective of load. A simple control element permits selective engagemant combined with a constant or LS pump. Dimensions Directional valve LA8S Manual over-ride Top mounted valve LU08PET Inlet section LU8SCS with 3 way pressure compensator Directional valve LM8S, LP8S Bottom mounted valve LU08SK Block length dimension L in mm = Endplate Directional valve LA8S Directional valve LM8S, LP8S No. of directional valves x No. of pressure sections x (Inlet section without pressure function). Individual drawings are available for special block assemblies. Port threads: Inlet plate LU08SCS with 3 way pressure compensator Work ports A + B M 18 x 1,5 Pressure P M 22 x 1,5 Return T M 22 x 1,5 Pressure carry over D M 22 x 1,5 Load Sensing LS M 14 x 1,5 25

25 Proportional Directional Control Valve Type LV The flexible modular system enables the setup to be adapted perfectly to the respective application A load-independence will be achieved by individual pressure compensators which are asigned to each proportional directional control valve (load-sensing) Individual pressure compensator and individual adjustable primary pressure relief Systems data LV 16 LV 22 Flow rate, A and B l/min Inlet pressure bar max. 350 Return pressure bar max. 50 Fluid Mineral oil to DIN Operating temperature range C - 20 to + 80 Viscosity range mm 2 /s 10 to 380 Filtration nach ISO 4406 class 18/15 Directional valve Operator Voltage electrical piloted proportional, hydraulical, combination electrical 24 V D.C. Spool symbols "A" "B" "C" A B T P T A B TP T A B TP T "D" "K" "L" A B B A TP T T P T T P T Function sections 2 way pressure compensator / 3 way pressure compensator / Individual pressure compensator (over center valve / load control valve / shock valve / pressure compensated flow control / manual override on request) 26

26 Circuit diagram Example of a valve with inlet module, two actuator sections with primary pressure relief for A and B, electrical piloted and end module. 2-fold-modular 2-fach-Zwischenmodul plate "Y" Y a1 b1 a2 b2 Inletmodule Eingangsmodul L "L" Endmodul module "X" X DUE7 DUE8 max. 50 bar DUE4 RV4 DUE5 RV5 DBV2 DBV1 DUE2 MX Y XL T P X DUE0 30 bar DM DUE1 FI D1 DUE1 D4 RV1 D2 DUE2 D5 RV2 MT A1 MP B1 A2 B2 Dimensions Type LV 22 solenoid a solenoid b adjustment of the primary pressure relief port XL adjustment of the individual pressure compensator stroke limitation of the main spool for the connection P-A port MX port Y 145 mm 215 mm stroke limitation of the main spool for the connection P-B ca. 415 mm adjustment of the primary pressure relief stroke limitation of the main spool for the connection P-A adjustment of the individual pressure compensator 135 mm 173 mm 175 mm ca. 215 mm Type LV mm port MX port Y 170 mm mm stroke limitation of the main spool for the connection P-B 27

27 Proportional Directional Control Valve System Load sensing capability may be used with all types of pump in systems with varying flow requirements irrespective of load even when used by several receivers simultaneously A flexible concept, especially designed for use in mobile hydraulics Sectional body type SV... Technical Data System description 12 SV 18 SV 25 SV Flow rate l/min Inlet pressure bar 350 Return pressure bar 50 Fluid Mineral Oil to DIN Operating temperature range C - 30 to + 70 Viscosity range mm 2 /s 3 to 380 (1000) Filtration Directional valve Operator Voltage Spool types see table Lever Hydraulic Proportional Electric Proportional 12 or 24 V D.C. AB AB A= F = C = PT AB PT AB PT B B = G = D = PT AB PT AB PT A These proportional valves control the rate of flow to the receiver irrespective of load, because there is a 2-way pressure compensator integrated into each directional control valve. In addition each directional valve contains pressure relief functions individually adjustable for each receiver. The valve system comprises 2 to 9 single sections, held together by tie bolts. A pump inlet section, 1 to 7 direction valves and an end section form the valve bank. All proportional directional control valves have internal load signals for the accompanying 2-way pressure compensator. The highest load pressure signal is conducted via check valves to the pump inlet section. K = PT L= PT Standards for operational reliability and service life. Low High ISO 4406 Class 19/16 Class 16/13 NAS 1368 Class 10 Class 7 Filtration to ISO 4572 ß 25 > 75 ß 10 > 75 28

28 Monoblock body type MU... Technical Data 8 MU 12 MU 18 MU 25 MU Flow rate l/min Inlet pressure bar 350 Return pressure bar 50 Fluid Mineral Oil to DIN Operating temperature range C - 30 to + 70 Viscosity range mm 2 /s 3 to 380 (1000) Filtration see table S. 24 Directional valve Operator Lever Hydraulic proportional Electric proportional Voltage 12 or 24 V D.C. Spool types A= C = K = AB PT AB PT B PT B = D = L= AB PT AB PT Sub-plate mounted type PV... Technical Data A PT F = G = AB PT AB PT System description These monoblock construction valves control flow to the receiver irrespective of load. All principle functions of the valve are integrated in one compact unit. They consist of the pump inlet section with pressure compensation and up to four proportional directional control valve sections. By using internal pressure signals selected directional control valves proportionally control flow irrespective of load. All directional control valves may be operate simultaneously, but only the flow rate of the receiver with the highest pressure is controllable irrespective of load. The methods of operation available - manual, hydraulic, electric or any desired combination - and the options with the different pump connection sections with pressure compensation in 2- or 3-way operation or pressure valve - offer a wide scope of applications relief. System description 8 PV 12 PV 18 PV 25 PV Flow rate l/min Inlet pressure bar 350 Return pressure bar 50 Fluid Mineral Oil to DIN Operating temperature range C - 30 to + 70 Viscosity range mm 2 /s 3 to 380 (1000) Filtration see table S. 24 Directional valve Operator Lever Hydraulic proportional Electric Proportional Voltage 12 or 24 V D.C. Spool types see Monoblock 29

29 Solenoid Operated Directional Valves Flow rate Nom l/min Size P max Series and brief description Symbol ISO Size 2 DIN A6 A10 ISO/ CETOP 3, 5 NFPA D03, D05 Direct-acting Poppet Valves W2N are direct-actuated poppet-type valves in 2/2, 3/2, 3/3 or 4/3 (4/4) function with ultra-low leakage when closed. Closed crossover models also available. EEx-W1/W2...6 mm/iso size 3 valves actuated by hazardous-area solenoids (protection class EEx me II T4). Direct-acting Spool Valves WEDA WEDO WEDS... WEDE are conventional, direct solenoid-operated, spool valves with normal 4/ 2 and 4/ 3 functions. Certain models can be supplied with an externally-adjustable spool-speed control to ensure «soft» spool changeover. EEx(d)-WED are size 3 valves with hazardous area solenoids (Protection Class EEx em II T4). Note that max. hydraulic ratings are less than those of conventional valves. Two-stage Spool Valves WEVDK are ISO size 3 High-Performance valves featuring «spool-within-aspool» design see bottom of page 13 for details of function. WEVDE are ISO size 5 High-Performance valves. The «spool-within-a-spool» design (see bottom of p. 13) enables valves to be controlled by lower-powered solenoids. EEx(d)-WEV are spool-within-a-spool High Performance valves with hazardous area solenoids. (Protection Class EEx em II T4; or EExd II CT WVRA are Proportional solenoid-controlled valves with «spool-within-a-spool» pilot operation, without spool-position feedback. They give good performance in medium- to high-pressure (315 bar) systems and where asymmetric flow paths exist. 30

30 Directional Valves Miscellaneous Flow rate l/min Nom Size P max Series and brief description Symbol DIN A6 A10 ISO/ CETOP 3, 5 NFPA D03, D05 These are some examples of our very wide range of directional valve variants, many of which were designed for specific customer requirements. WHH 6 hand-lever controlled valve, ISO Size 3, with precision metering in the cross-over condition. Spool is spring centred, or detended. WOFA automatic reversing valve, 4/2 function. No reversal point pressure setting required. Pre-defined direction of cylinder movement when pump is started WHGA steering selector valve in rotary design featuring very large overlaps. Application controlling 2 axles in 4 steering modes: front only; rear only; both circular; both crab. Valves can be supplied to meet particular requirements e. g. with integral check- and relief valves. Adapter- and Subplates, and Accessories. For modular stacking assemblies (horizontal or conventional vertical stacks) we offer a wide range of both industry standard components in ISO Sizes 2, 3, 5, 7 and special components covering the same flow ranges. On request, we can combine these with the required valves to build complete, compact, functioning assemblies. Two-stage Spool Valves The «High-Performance Spool Valve» Principle. The main spool (2) contains within it a small 5 mm dia. pilot spool (3). This combination of direct and pilot actuation produces a self-regulating hydraulic amplification of the spool actuating force, in both the offset and recentering directions. The pressure existing at P is directed by the pilot spool to one or other end of the main spool, thus producing a hydraulic force which assists either the solenoid or return spring, as appropriate. This force amplification means that the High Performance Spool Valve is largely unaffected by Flow rate, asymmetry of flow paths, long periods of energisation, high viscosities or very large pressure drops. It is ideally suited to all applications which require extremely high reliability of ON- and OFF switching. Also, in many situations an High Performance Spool Valve can be «designed in» in place of a much larger valve. 31

31 Directional Control Cartridge Valves Solenoid Operated Flow rate l/min Nom P max Cavity Series and brief description Symbol Size The 3/4-16 UNF cartridge program (available also with M20x1,5m thread) Except for type WR22, the following models are all of direct-acting design and feature the proven principle of sealed core tube and slip-on coil AL ALM AL ALM WS22 are 2/2 normally open or closed cartridge poppet valves which give a leaktight seal in both directions. WR22 are 2/ 2 cartridge check valves with a solenoid override. Normally open or normally closed. AL AM AN WK22, WK32 and WK42 are cartridge spool valves for 2/2 4/2 functions and have push solenoids. WK43 for 4/3 functions has a dualstroke solenoid AA AB AC AD DC (315) DD EB DJ W1C W1D are direct-operated 2/2 and 3/2 cartridge poppet valves. The dual-poppet design enables bidirectional pressure sealing and flow. Also available with closed crossover. WK is a direct-operated 3/2 cartridge spool valve. Available as «deenergised 1 2 blocked» and «deenergised 1 2 open». WS22G... / WS22O are 2-stage 2/2 directional valves with seat-type pilot and main stages and are available in normally open or normally closed designs. The cartridges give a leak-free seal in both directions of flow. WR22G... / WR22O... are 2-stage 2/2 cartridge check valves with solenoid override. With seat-type pilot and main stages, they are available in normally open or closed designs WKD22 are 2-stage 2/2 directional valves with seat type main stage and sliding spool pilot and are available in normally open or closed designs. The cartridges feature compact installation and excellent p/q values WSD22L are screw-in logic valves, or 2/2 directional cartridge valves. Controlled by a hydraulic pilot signal, they feature compact installation and excellent p/q values and are available with optional damping 32

32 Pressure Control Cartridge Valves Manually Adjusted Flow rate l/min Nom Size DA 315 P max Cavity Series and brief description Symbol DPA-3 are low-flow direct-operated poppet valves. Primary uses: pilot control, miniature hydraulic systems AL DDPA-1L direct acting seat relief valve with mid-range damping. Intended for secondary relief protection of leak-tight service lines, and for shock protection DC DD DDPB-1C direct acting seat relief valve with mid-range damping. Intended for secondary relief protection of leak-tight service lines, and for shock protection. DDPB-3D as above, but spring chamber externally drained. Pressure setting is unaffected by back pressure at port B DD DDPDB direct acting pressure relief cartridge valve with dual action i.e. pressure can be relieved from A to B or from B to A. 65 DC DD DE DVP (A) are pilot-operated, spool type, pressure relief valves available in 3 versions: internal pilot drain via B, external pilot drain or external pilot supply DD DWDPA-2D... hydrostat cartridge valves for Bypass function, with adjustable hydrostat spring but without integral pressure relief function DD -140 DWVPA-2... hydrostat cartridge valves for Bypass function, with fixed hydrostat spring and integral, adjustable, pressurerelief valve DD DWDPA-5D... hydrostat cartridge valves for In-line function, with adjustable hydrostat spring DE DD 315 DRP (A) models are 2-way pilot operated pressure reducing valves with internal pilot supply from A. The external pilot drain should not be subjected to back pressure AM : DDRB-7M are low leakage direct acting 3-way pressure reducing cartridges, designed for flow rates up to 20 l/min. Pressure ranges: 30/60/100/160 and 250 bar. Actuators: for the new generation of cartridge, as well as for the current range, we offer 3 different adjuster styles. 33

33 Pressure Control Cartridge Valves Solenoid Operated Flow rate l/min Nom P max Cavity Series and brief description Symbol Size ,2 210 DA 2, DC DD DE WUP-1 Direct solenoid operated pressure relief valve, principally for pilot- and lowflow duties. 2 versions available: energised = pressure on; de-energised = pressure on. For pressure adjustment, see WUVP below. WUVP in sizes 10 and 16 are 2-stage solenoid controlled pressure relief valves in 3 versions: internal pilot drain to B (relief valve); external pilot drain (sequence valve); auxiliary control port (remote control version). An important feature is the dual pressure setting capability; 2 pressure levels corresponding to «energised» and «de-energised» are mechanically pre-set the valve then «switches» between these 2 levels DD DE : DA 250 AF 300 WDRVP...-5 in sizes 10 and 16 are 2- way, 2-stage, solenoid controlled pressure reducing valves with internal pilot supply from A. The external pilot drain should not be subjected to back pressure. For dual pressure adjustment and control see WUVP above. DBDRB... are proportional, direct operated, pressure relief valves. DDRRZ are proportional, 3-way, direct operated pressure reducing valves intended for low-flow service, such as pilot control DBZ DD DE DVPRA in sizes 6, 10 and 16 proportional, 2-stage, pressure relief valves and DRPRA (also sizes 6, 10, 16) are proportional, 2-stage, pressure reducing cartridges. All versions feature: compact design; high power/weight ratio; 5 pressure ranges; same cartridge recesses as for manual- and solenoid operated pressure control cartridges. The same cartridge elements are used in manifold blocks; line- and manifold mounting valves; modular mounting valves. 34

34 Flow Control Cartridge Valves Flow rate l/min Nom P max Cavity Series and brief description Symbol Size CA MDPCA.../MDPAA- are throttle and/ or shut-off semi-cartridge valves with minimal space requirement. The mating valve seat is either machined in the control block or inside the DC cartridge body (cavity form tools are available). Pressures to 315 bar DF RDB are throttle/ check semi-cartridge valves. They are intended purely for use in manifold blocks. The only difference between the 6 and 10 mm models is in the design of the throttle sleeve. Pressures to 315 bar DD DC MRP-2D are 2-way, screw-in, pressure compensated flow control cartridges with adjustable hydrostats and a choice of metering orifices; Simple low-cost flow controller, with flow ranges of 6...9, , , and l/min. Pressures to 315 bar MDD MVR-3D-10 is a 3-way priority flow control valve with a choice of 7 fixed orifice sizes for flows from 0, l/min on port Z. 2,5 315 DC DD MDRPA-... are direct acting proportional throttle cartridges. They are available in 6 flow ranges from 2,5-40 l/min) and in normally closed or normally open versions. If the p (A - B) is at least 15 bar, they function as pressure compensated control valves. Line- and stack mounting bodies are, of course, available for our entire range of cartridge valves. 35

35 Cartridge Check Valves Flow rate l/min Nom P max Cavity Series and brief description Symbol Size Patent Nr to : 350 G (500) 8 4 to : (500) 8 4 to : 350 G (500) 8 4 to : 350 G /2 to : 210 SAE RVE are spring-loaded, plate-type, screw-in check valves in sizes G 1/8 to 1. RKVE as above, but poppet-type. Sizes G 1/8 to G 1 1/2. RKVE V are screw-in poppet check valves with extended body for higher cracking pressures. G 1/8 to G 1. RVC like RVE above, but slip-in design. For assembly in threaded holes G 1/4 to G 2, use series ESH screw-in retaining bushings. Reversible. RKVC are also slip-in check valves, but with guided poppet design. WRVCG are screw-in shuttle valves in 4 nominal sizes from 4 mm to 10 mm (G 1/8 to G 1/2 ) ERVH are extremely compact pilot-operated check valves. Screw-in plate-type design, available in 5 sizes from 4 mm to 16 mm (G1/4 to G 1 ). Pilot ratio 3,5:1 RVSAE 3/6 are a new family of SAE check valves which clamp between port and flange and are self centred by 4 bolts. Auxiliary seal plates allow either direction to be chosen for free flow. In the no flow direction leakage is near-zero as expected of a good seat valve. RVSAE bar (3000 psi) RVSAE bar (6000 psi) (Dual purpose bodies) RC REPA-10 are pilot-operated cartridge check valves which ensure leak-free sealing from A1 to A RCY REPYA-10; as above, but with external pilot drain via Y. System pressure in A does not, therefore, act against the pilot pressure RE REY REPNOA-16 (internal drain) and REPYOA- 16 (external drain) are functionally identical to the 10 mm size units described above. 36

36 Solenoid Operated Stack Mounting Directional Valves Flow rate l/min Nom P max Series and brief description Symbol Size (315) (315) DIN A6 A10 A16 ISO/CETOP 3, 5, 7 NFPA D03, D05, D07 Venting Circuitry, (P, A or B to T) is available in ISO sizes 3, 5 and 7 in direct acting and two-stage designs. Many variants can be supplied, each in «energised-open» or «energised-closed» versions. Straight-through Circuitry (P P, A A, B B) is available in ISO size 3 (direct acting) and sizes 5 and 7 (two stage). Many variants can be supplied, each in «energised-open» or «energised-closed» versions, and with or without by-pass check valve. Cross-over Circuitry (A B or B A) is available in ISO size 3 (direct- and pilot-operated) and size 5 (pilot-operated only), in «energised-open» or «energised-closed» versions. Cartridge elements, see pages Single- and Multi-station Stacking Assemblies can be supplied in ISO sizes 2, 3, 5 and 7 Customised control systems can be assembled quickly from the wide range of valve functions. 37

37 Stack Mounting Pressure Control Valves Flow rate l/min Nom Size P max Series and brief description Symbol to to to ISO Size 2 DIN A6 A10 A16 ISO/ CETOP 3, 5, 7 NFPA D03, D05, D07 Manually Adjusted Manually adjusted stack-mounting pressure control valves with Venting, Straightthrough or Cross-over function; pressure relief, pressure reducing and sequence functions; with or without bypass check valve. A very wide range of models is available. Size 2 valves are direct acting, sizes 3 and 5 are two-stage designs. Solenoid Actuated Solenoid actuated stack-mounting pressure control valves with Single- and Dual Pressure settings; with Venting, Straightthrough or Cross-over function; pressure relief, pressure reducing and sequence functions; with or without by-pass check valve. A very wide range of models is available. Proportional-Solenoid Actuated Proportional-solenoid actuated stackmounting pressure control valves with Venting, Straight-through or Cross-over function; pressure relief, pressure reducing and sequence functions; with or without by-pass check valves. A very wide range of models is available. 38

38 Stack Mounting Flow Control Valves Flow rate l/min Nom P max Series and brief description Symbol Size DIN A6 A10 ISO/CETOP 3, 5 NFPA D03, D05 SD are simple stack mounting throttle valves. Function in P and T. For coarse, pressure dependent, flow regulation in non-critical applications. P max 315 bar. SM-2D are 2-way pressure compensated flow control valves with adjustable hydrostats and a choice of metering orifices. Flow ranges 6 9, 8 13, and I/min. Function in P, A or B, with or without by-pass check valve. p max 210 bar (315) ISO Size 2 DIN A6 A10 A16 ISO/CETOP 3, 5, 7 NFPA D03, D05, D07 SRD are manually adjustable throttle valves with by-pass check valves and locking nuts or screws. Function in A, B or A and B. Meter-in or meter-out, dependent on mounting (see below). The throttle valve features a fine-control adjustment range and full flow is available in the free direction without bypassing the throttle. Size 2 p max 250 bar Size 3 to 7 p max 315 bar. 2, Installing Size 3 and 5 Modules DIN A6 A10 Proportional throttle stack valves are available as Bypass or Inline functions. The throttle cartridge allows flow in one direction only - if the function is in the A or B line of the stack valve, a reverse flow check valve is also provided. Size 3 valve 180 about Long Axis 180 about Short Axis Size 5 valve Where practical, modular valves are designed to be used with a separate seal plate. This enables the valves to be mounted in either of 2 positions and with either of 2 corresponding functions. This feature can significantly reduce your sparesholding requirements. Note: P and T will be interchanged! Note: A and B will be interchanged! 39

39 Stack Mounting Check Valves Flow rate l/min Nom P max Series and brief description Symbol Size ISO Size 2 SRVA are direct check valves with seats machined in the valve body. Function in P and T higher cracking pressure available as an option to DIN A6 A10 ISO/CETOP 3, 5 NFPA D03, D05 ISO Size 2 DIN A6 A10 A16 ISO/CETOP 3, 5, 7 NFPA D03, D05, D07 SRV are direct check valves with separate slip-in, invertable, CV elements type CRV. Bodies are available with normal P, A, B and T drillings (customer machines straight-through bore for C.V. sleeves) or completely finished for function in P or T. SREA are single-stage pilot operated check valves with function in A, B or A and B. Main use: leak-tight sealing and loadholding when situated between cylinder and open-centre directional valve. The area ratio is 3,3:1. SRE SREZ are two-stage pilot operated check valves functioning in A, B or A and B. Main use: Leak-tight sealing and load-holding, when situated between cylinder and open-centre directional valve. The area ratio of at least 6:1 ensures a gentle opening action ISO NG 4 SNKA are spool type counterbalance valves for use in Negative Load situations. They operate in the T line but are controlled from the B line and automatically prevent uncontrolled runaway of negative loads. No PRV function DIN A6 A10 ISO/CETOP 3, 5 NFPA D03, D05 SNSA are counterbalance valves acting in A, B or A and B. They ensure controlled lowering of negative loads, and leak-tight load holding. The area ratio is 4.5:1 or 3 :1. In overload situations the valve functions as a pressure relief valve. 40

40 Special-Purpose Valves in System Solutions Nom Size Flow rate l/min P max Series and brief description Symbol 1 SAE /4 RB is a hose-burst/load lowering valve with metering characteristics matched to the main directional valve. It complies with modern safety requirements. 3/ FBVG a motor-mounted bidirectional brake valve for open loop motor drives. REFUVA... is a load lock valve for construction machinery with optimised p values when lifting and lowering (250) Pilot Control Circuit on Construction Machinery Compact, customer-specific, control block with integral Pressure Control Valve, 3/ 2 spool-type Cartridge Valves, Check Valve, Accumulator and Filter. Supplies all pilot oil requirements and controls Travel- and Slew Brakes. 2-Speed Heavy Duty Transmission control Our HBGV units have been specially designed to control 2-speed heavy duty transmissions on construction machines. They are optionally available with integral pressure relief or pressure reducing valves in the inlet. High-performance Gas Turbine control Safety monitoring and emergency shutdown of High-performance Gas Turbines (250) The «VV» Stack Valve System for 2/2, 3/2, 4/2 and 4/3 functions - Low-cost System - Spool and Poppet valves in same stack - High flow rates; spool valves to app. 40 I/min, Poppet valves to app. 20 l/min - Pressures to 315 bar (limited by individual valve ratings) - 3/2 poppet valves (including closed crossover) can be incorporated - Additional functions can be incorporated in stack (eg. Check Valve, pressure Reducer, Flow Control) - «Slip-on» coil design permits coil changes without loss of hydraulic fluid - ISO Size 3 adapter plate available - Valve function can be reversed by rotating unit by 180 about vertical axis 41

41 Flow Measurement Devices and Electronic Amplifiers Nom Size Flow rate l/min P max Series and brief description Symbol (420) QSB extremely compact, bi-directional flow meters based on a patented «Disc» principle. Available in HTF cartridge forms (DC), DD and DE. On-board electronics produce an analogue proportional signal in the range ± 6 Volt. Changes in flow rate are signalled within milli-seconds therefore this unit is well suited to closedloop control systems. EQP-01 are digital display meters for the above QSB units. The analogue input is converted to a 3 -digit ± LED display. SAN-135 is a single-channel PWM DC amplifier with ramps. SAN-227 is a 2-channel PWM amplifier with ramps. All models are designed for proportional valve control, and are supplied in Eurocard form. PBS-3A is a compact and low-cost, single channel, PWM amplifier for controlling Proportional Valves. A potentiometer knob and scale-plate are situated on the front cover. Stable, robust, adjustment. Internal pot. for I min /I max settings. Full scale (270 ) control always available. LRS is a power-reducing DIN plug for the ranges 15 55V DC and V DC. At the moment of switch-on, the full power (max. 40 W) is applied to the valve and shortly afterwards this is reduced to a preadjusted level eg. 10 W. Modern electronic techniques allow this to be done without the power-drop being dissipated as heat. Uses: power savings; limiting coil temperature rise; permit deliberate but transient overcurrent condition. Cavity AL DC Customer-specific Valve Developments DSVP is a multi-functional kick down valve to control the squeeze sequence in swaging and flaring machines. DFUA cartridge valve for monitoring pressure filters. Bypass spool and electric contacts are mechanically coupled ensuring ultra reliable operation DD DRPA...SMOT is a pressure reducing valve for pressure control on calendar rollers. It has motorised adjustment and onboard electronics for signal/feedbackcomparision. 42

42 Seat Valves Type SVH 04 Aluminium sections and monoblocks Can be combined with series L.08 Direct operated 2/2 double seat valves On/off solenoid operation Leak free load holding control Technical Data Nom. Flow l/min 20 Operating pressure max. bar 210 Outline dimensions Monoblock for use with L.08 Directional valve SVH 04 M 308 N-OM12... Emergency over-ride Temperature range C - 20 to + 80 Viscosity range mm 2 /s 10 to 380 Max. Leakage mm 3 /min 4 (at 100 bar) Recc. Filtration µ 25 Operation voltage V 12,24 Power W 27 Supply voltage D.C. Rating % 100 Protection GDM 309 Port threads = M 12 x 1,5 Stand-alone Monoblock Available as single or double acting Port threads = M 14 x 1,5 Order code: Single section = Three sections = SVH 04 M 1 N-OM14... SVH 04 M 3 N-OM14... Emergency over-ride Sectional valves for use with SVH 04 monoblocks 1 or 2 seat valves per section Port threads = M 12 x 1,5 SVH N-OM12... Emergency over-ride 43

43 Seat Valves Type WS 03 Aluminium Monoblock bodies Direct acting 3/2 poppet valve combined with 2/2 seat valve On/off solenoid operation Leak-free sealing for load holding Technical Data Nom. flow l/min 15 Outline dimensions WSH 03 M2... Operating pressure max. bar 210 Temperature range C - 20 to + 80 Viscosity range mm 2 /s 100 to 300 Max. Leakage mm 3 /min 4 (at 100 bar) Recc. Filtration µ 25 Operation voltage V 12,24 Power W 12 Supply voltage D.C. Rating % 100 Protection GDM 309 WSH 03 M3... WSH 03 M4... WSH 03 M

44 Flow Dividers Type MTDA Flow division and combining Available with unequal outputs Flow division is virtually independant of pressure and viscosity Technical Data Operating pressure max. bar 315 Temperature C min to max.+ 80 Viscosity range mm 2 /s min. 10 to max. 300 Characteristics Curves based on oil viscosity of 35 mm 2 /s (cst) Flow rate 16 Flow rate 08 Operating flow ranges Q (l/min) Port and thread Ordering key Flow range P A + B MTDA M 2-4 MTDA M 3-6 MTDA M 4-8 MTDA M 6-12 M 18 x 1,5 MTDA M 8-16 MTDA M MTDA M MTDA M MTDA M M 22 x 1,5 M 18 x 1,5 MTDA M MTDA M M 27 x 1,5 M 22 x 1,5 MTDA M MTDA M M 33 x 2 M 27 x 2 MTDA M Curves based on oil viscosity 35 mm 2 /s (cst) Flow rate 16 Flow rate 08 Outline dimensions a b c d f g h Weights MTDA ,2 kg MTDA ,5 4,1 kg 45

45 Priority Flow Control Valves Type MTKA, MTQA and MTCA Manually variable or fixed flow MTKA: Residual flow is loadable MTQA: Priority flow with relief valve residual flow not loadable MTCA: Priority flow with relief valve residual flow loadable MTKK: As MTKA function in stackable body MTKL: Load-Sensing function Technical Data Type MTKA, MTQA, MTKK MTCA Operating pressure max. bar 315 Nom. flow q l/min Accuracy % ± 5 Pressure drop p bar 3, Operating temperature range C Viscosity range mm 2 /s(cst) Standard range Order code: MT - M 08 (e.g. MTKA 03 - M 08) { { Fixed constant flow MTKA.. 3 l/min = 03 6 l/min = 06 MTQA.. 9 l/min = l/min = 12 MTCA.. 16 l/min = 16 Other flow rates available on request MTKA.. MTQA.. MTCA.. Adjustable constant flow VA = 0-12 l/min VB = 0-25 l/min VC = 0-50 l/min VD = 0-65 l/min Remote control for remote operation the flow control valve can be fitted with an electric motor drive unit Outline dimensions (all parts are M 22 x 1,5 threads) MTKA MTQA MTCA Dimensions for variable control version 1,2 kg 1,3 kg 2,6 kg Graduated 0-10 max. rotation 329 Detent version available on request 46

46 Flow Control Type SR3G Electro hydraulic proportional control Load Sensing capability Residual flow is loadable Available as single section or multi-section valve block Either 2 or 3 way flow control Hydraulic parameters Technical data Unit Flow rate l/min 06, 10, 16, 25, 32, 40, 50, 63, 80, 100 max. operating pressure bar 315 max. input flow l/min 120 Leakage flow of zero setting cm 3 /min 100 Minimum pressure drop bar 6-11 (Pressure compensator) Temperature range C Viscosity range mm 2 /s(cst) Recommended filtration µm 25 abs Electric parameters Technical data Unit Voltage V DC 12 or 24 Power W 17,4 Rating ED% 100 Protection IP 54 Response time ms 200 Electrical connection Plug DIN For SR 3 C single section valve please see catalogue Standard range 1. Single section for constant pumps SR3GOA... for L.S. pumps SR3GOB... SR3GOE... SR3GOD... SR3GOG Inlet section for sectional valve End sections SR3GEO... SR3GEO.../02 T P X T for constant pumps SR3GEB... P for L.S. pumps SR3GEE... SR3GEC... SR3GED... / 05 SR3GEG... / 05 47

47 3. Intermediate plates for section valves for constant pumps SR3GZB... SR3GZE... for L.S. pumps SR3GZD... SR3GZG... / 12 SR3GZH... / 12 SR3GZJ End plates for section valves no function SR3GAU... SR3GAW... / 02 T1 T for constant pumps for L.S. pumps SR3GAA... SR3GAE... SR3GAB... SR3GAD... / 04 SR3GAF... / 04 T B A T A T B A T A T A P P P X P X P Order code Function type see sect. 1-4 Neutral position closed = 0 Operating range e.g l/min = / -10 / -16 / -25 / -32 / -40 / -50 / -63 / -80 / -100 l/min Outline dimensions SR3 G ZB0063- S - 0 M 2 2 G12 Operating voltage version H = *** DC 12 Volt = G 12 DC 24 Volt = G manual operation = H without manual over-ride = S with manual over-ride = T 3) 35, ) 1) ,4 74 Port threads P/A/B = M22 x 1,5 T = M26 x 1,5 X = M14 x 1, ) ,5 1) Pressure port for SR3GE... Inlet section 2) Not for L.S. versions 3) Only for SR3GA... end sections 4) Only for SR3GE... single section for L.S. operation 48

48 Flow Control Valve Type SR3C Cartridge body Electro hydraulic proportional control Residual flow loadable Available as 2 or 3 way flow control Hydraulic parameters Technical data Unit Nom. flow l/min 10, 16, 25, 32, 40, 50, 63, 80 Operating pressure max. bar 315 max. flow l/min 100 Leakage rate cc/min 100 Minimum operating pressure bar 5-8 (Pressure compensator) Oil temperature range C Viscosity range mm 2 /s(cst) Recommended filtration ISO 4572 ß 25 > 75 Electric parameters Technical data Unit Voltage V DC 12 or 24 Power W 17,4 Rating ED % 100 Protection IP 65 Response time at 100 bar ms 100 Electrical output Plug DIN Operating temperature range C -20 / way flow control P A P A 3-way flow control B Dimensions Flow control valve 49

49 Cavity dimensions Detail Cavity for 2-way flow control valve does not include Port B. Order code SR3C50S - 0 G 1 2 / * Q =... 2 and 3 way flow control valve Priority flow range variable flow range (type S, T, N and A) 0-10/-16/-25/-32/-40/-50/-63/-80 l/min = e.g. 50 variable flow range (type H) VA (0 12 l/min), VB (0 25 l/min), VC (0 50 l/min) = e.g. VB VD (0-65 l/min) fixed flow rate (type F) = ** Operator solenoid = S solenoid + manual operation = T solenoid + override = N solenoid + manual operation + cover = A hand operated = H fixed flow = F - Modification Standard Operating voltage DC 12 Volt = G12 DC 24 Volt = G24 not required for version F = *** / Modification / special version (set by the factory) *) Where applicable state fixed flow required in clear text. 50

50 Differential Lock Valve Type MT..DV. With two and three way flow division Flow dividing and combining With unequal flow division ratios Electrical and hydraulic switching Hydraulic parameters Technical data Unit NG08 NG16 Input flow Qmax l min Nom flow l min -1 25, , , Oper. pressure max bar 420 Pilot pressure pst min - pst max bar Viscosity range cst Fluid Mineral Oil to DIN Fluid temperature range C -20 to + 70 Divisions ratio 3) 1:1 bzw. 1:1:1 3) Other division ratios available on request 2 way differential valve MT..DV Electrical parameters Technical data Unit Voltage V DC 12 and 24 Power consumption W 30 Ratings ED% 100 Operating temperature max C + 80 Coil temperature max C Protection DIN IP65 4) Electrical output Plug DIN ) with correctly assembled plug Symbols Outline dimensions: Hydraulic switching MT..DV...- * H- Optional compensating orifice Nominal size: 08 Solenoid for electrical operation Nominal size: Electro Hydraulic switching MT..DV...-EH Solenoid for electrical operation 51

51 3 way divider MT...DVD Symbols: Hydraulic operations MT..DV...- * H- Dimensions: Size: 08 Size: Electrohydraulic operations MT..DV...-EH- Optional compensating orifice ) 1) Mounting holes for SHCS M8 DIN 912, 2) 1) Inlet P M 27 x 2 Outlet A, B, and C M 22 x 1,5 Outlet X and T M 12 x 1,5 2) Solenoid for electrical operation Inlet P M 33 x 2, flange SAE (3000 PSI) R 1/4 Outlet A, B, and C M 27 x 2, flange SAE (3000 PSI) R 1 Outlet X and T M 12 x 1,5 SAE Flanges see data sheet Order code MT 08 DV D E H- 0G12 Orifice: Düse: 2) NG = 08 or 16 3-way differential lock valves = D 1) Division ratio A to (B + C) 1 : 1 = 10 1 : 1,5 = 15 etc. Division ratio B to C 1 : 1 = 10 1 : 1,5 = 15 etc. 1) Nom. flow e.g. 25 l/min = 025 Operation type hydraulic = *H electrohydraulic = EH Modification level Supply voltage DC 12 Volt = G12 DC 24 Volt = G24 for pilot operation *H = *** 1) Only for three way dividers 2) State size of compensation orifice in text e.g. Ø 0,6 / 0,8 / 0,9 / 1,0 and so on. 52

52 Leakfree load control valve General description prevents a hydraulic actuator from running ahead of the available oil supply in the event of external driving forces i.e. negative, or over-running loads takes over the load control-, load holding- and safety functions provides leak-free load holding in the neutral position for sensitive control and precision movement of actuators under load mounted directly on the hydraulic cylinder for the highest security against unintentional movements for controlling the speed of hydraulic cylinders and motors, for example on cranes, lifting platforms, etc. Advantages of the Cindy load control valve absolutely zero-leakage load holding 420 bar working pressure with 3-fold safety pilot operated load-control valve and bypass check valve both combined in one axis Load does not accelerate in the event of a hose burst(with back pressure-independent models) the opening action is almost entirely independent of the load pressure (area ratio 1:113) above 100 bar load pressure, it controls like a compensated 2-way flow controller (patented follower principle) fully compensated pressure relief valve opens independently of tank- or return line back-pressure over-compensated models are available with various reducing stages outstanding fine control from optimised, low-flow control notches high resolution, thanks to the long control stroke the valve is guaranteed to close, even with a broken spring hardened, ground and lapped seat valve omponents ensure permanent leaktightness and long service life low-noise operation thanks to multiple, specially shaped notches very low hysteresis various pilot pressure ranges can be chosen various types of pilot-control are available damping properties guarantee a stable system even in sensitive applications additional asymmetric damping properties can be provided high power density wide choice of build types can be supplied Cindy B Standard Nom P max Q Q max Symbol Size bar l/min l/min

53 NG P max Q Q max Symbol bar l/min l/min Cindy B Platten Cindy B Cartridge DLBV leakfree double load control valve A1 B A B BBV Opening ratio: 1:66 BBV C Opening ratio: 1:66 54

54 Leakfree (excavator) pipe rupture valve Prevents uncontrolled movement of the cylinder if a pipe or a hose burst occurs Standard ESV-ST Nom Size P max Q nenn Q s Type Symbol bar l/min l/min ESV leakfree excavator pipe rupture valve Flange ESV-FL flanged directly into the cylinder with an SAE flange, trouble-free original equipping or retro-fitting no more preassembling thanks to fitting of unions on ports A, E, L and X the pressure relief valve operates independent of the return pressure in port A no need for a reservoir line with a large nominal diameter the housing dimensions are identical for both sizes of port (3/4" and 1"), which makes it easier to run the pipework when using different types of machine X L B A E Type: RSW and RSPR Type: RS Type: RSE and RSG 1/ / / RS/RSE/RSG/RSW/RSPR Pipe rupture valve either almost leakfree closing or slow lowering minimal spatial requirement thanks to compact design simple adjustment of flow rates Q s = max. settable closing flow Z P 55

55 Special valves Nom P max Q nenn Type Symbol Size bar l/min Rapid traverse in cartridge type EGP General description: four functions in one cartridge: holding position and no forward-slip run out with half-load in rapid traverse run out with full-load and full force run in automatic rapid traverse function in one cartridge Advantages: all functions in one cartridge self controlled, no external pilot signal need simple cavity pre-tensioning pressure for rapid traverse pre-tensioning pressure for force traverse B B1 A Load control valve for slewing gear DLHV General description: pressure relief valve with 3 pressurestages all pressure-stages can be adjusted individual Advantages: the design is more simple than load control valves, and independent of external oscillations X B A ERV Nom Size P max Q Q max. Type Symbol bar l/min l/min 8 450/ Check valves Leakfree, pilot operated check valve B DERV Opening ratio: 1: Leakfree, pilot operated double-check valve A1 A B1 X UVP Nom Size Opening ratio: 1:18 P max Q Q max. Type Symbol bar l/min l/min Adjustment range: bar Pressure valves Cartridge-type pressure relief valve A P T B DDP 16 D/E Double pressure relief valve with one or two separated adjustment ranges L 32 D/E A B 56

56 Compact Power Units Type UP Simple stack type construction with a small number of components means that the units can be quickly and easily assembled Type UP 100 Housing: - direct threaded connections - arrangement for manifolds - arrangement for valves Cartridge valves Standard Cavity: 3/4 UNF and 7/8 UNF Solenoid valves - direct or pilot operated - normally open or closed Control valves - check valves - pressure relief valves - manual over-ride valves - pilot and direct acting directional valves - flow control valves, pre-set or adjustable - lever valves - lever valves with microswitch Emergency hand pumps Module controls Single or section manifolds for cartridge or CETOP solenoid valves: - parallel or series circuits - Manifold for valves HDS11 - customer specific blocks Electric motors: 1. D.C. motors Voltage in V Power in KW 0,8 2 1,2 2, A.C. single phase motors 230 V Voltage in KW 0,25 0,37 0,55 0,75 1,1 1,5 2,2 3. A.C. three phase motors 230/400 V Power in KW 0,25 0,37 0,55 0,75 1,1 1,5 2,2 3 4 Gear pumps series AP 100 Displacement in cc/u 1,2 1,7 2,5 3,5 4,3 5 6,5 7,8 10 Max. Pressure Direction: left or reversible Also with double pumps and hi-lo valve Oil Tanks Capacity in l Steel Plastic 1,5 2,5 3, Examples of some feasible hydraulic circuits 57

57 Type UP 50 Housing: Single acting circuit: - direct threaded connections Double acting circuit: - arrangement for manifolds Reversible circuit: - direct threaded connections Cartridge valves Standard Cavity: 3/4 UNF and 7/8 UNF Solenoid valves - direct operating - open and closed centre Control valves - check valves - relief valves - flow control valves Electric motors: 1. D.C. motors Voltage in V Power in KW 0,35 0,8 0,9 1,5 0,4 0,9 1,2 1, A.C. single phase motors 230 V Power in KW 0,16 0,25 0,33 0,5 0, A.C. three phase motors 230/400 V Power in KW 0,16 0,25 0,33 0,5 0,75 1 Gear pumps series AP 05 Displacement in cc/u 0,25 0,5 0,75 0,9 1,2 1,6 Max. pressure Direction: left or reversible Module controls Mounting for cartridge valves: - customer specific blocks Oil Tanks Capacity in l Plastic 0,5 1 1,5 2,5 4 also available in steel Examples of some feasible hydraulic circuits Electric pump type ET Pressure relief valve Type Range Standard preset 06 VM bar 60 bar 15 VM bar 150 bar Gear pump AP 05 AP 100 V in cc/u 0,25 0,5 0,75 0,9 1,2 1,6 p1 in bar V in cc/u 1,2 1,7 2,5 3,5 4,3 5 6,5 7,8 p1 in bar AP 200 V in cc/u 4,3 6,3 8, ,9 21,9 p1 in bar Electric motors - D.C. motors Gear pump type AP05 is not available with an integrated relief valve Voltage in V Power in KW 0,8 1,5 2 1, Also available with 3 phase operation. - Motors for continuous and intermittent operation. 58

58 Type UP 25 Housing: Single acting circuit Double acting circuit Reversible circuit Electric motors: 1. D.C. motors Voltage in V Power in KW A.C. single phase motors 230 V Power in KW 0,09 0,16 0,18 3. A.C. three phase motors 230/400 V Power in KW 0,09 0,16 0,18 Gear pumps series AP 05 Cartridge valves Standard Cavity: 3/4 UNF and 7/8 UNF Solenoid valves - direct operating - open and closed centre Control valves - check valves - relief valves - flow control valves Displacement in cc/u 0,16 0,25 0,35 0,5 Max. pressure Oil Tanks Capacity in l Steel 0,3 0,5 Examples of some feasible circuits 59

59 Control Modules Proportional and switching systems 3 level digital control Programmable systems Analogue and digital logic and switching control remote operation Joysticks Type Type Function Application Connection Schematic Technical data FGE FGE / JS 14 FCE 48 x 48 x x 48 x 115 Joysticks for on/off on/off operation Voltage = 12 to 220 V switching with of 1 or 2 on/off A.C. Current: detent and locking Solenoids Inom = 3 to 10 A D.C. Current: INom = 0,55 to 8 A Electronic joystick Input for Voltage = 4,75 to 15 V proportional control Control: 1 signal per axis of 1 or 2 axis Output: control 1,8 kω centre tap 0,34 kω Protection: IP 54 / IP 33 For electronic controled Voltage = 9 to 30 V valves, robust model, Control: 0,5 4,5 V function grip with 2 switcher, per axis variant with integrated Protection: IP 65 electronic FCE / JS 3 FCEG 60 x 60 x 250 Joystick with up to 4 CAN-Bus Voltage = 12 bis 24 V variable outputs and 6 Joystick for 2 axis. Control: 1 signal per axis switched outputs in the Can be used as a slave Output: 4x1,8/0,9 A max handle with CAN-Bus Adjustment: Imin,Imax and output signal (per axis) Protection: IP 54 / IP 33 CAN interfaces in Voltage = 9 to 30 V intelligent systems, Protection: IP 65 ergonomic optimized grip, different grip equipment, EMV check existing 60

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