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Cylinder Circuits, Pilot-Operated, Meter In/Out A B DESCRIPTION 6 7 7 6 A combination of valves working together to control a double-acting cylinder. This pilot-operated spool-type product controls flow proportionally in response to a change in current. LS P T D S1 5a 3 2 4 APPLICATION TIPS When applying PE valves, as in the circuit above, the following application tips should be taken into consideration: • When using an EHPR valve, minimize back pressure at port D, as it may prevent the valve from fully shifting. Providing a separate drain line for the EHPR port D is required. • When using a pilot joystick, the minimum and maximum pilot pressures need to match the PE spool requirement to ensure full spool travel without excessive deadband (i.e. wasted joystick movement.) Maximum pilot pressure can be reduced to limit spool shift and thus limit flow through the PE valve as needed. • For applications requiring low work port leakage, the use of a pilot-operated check valve or counter balance valve is suggested. • Optimal control signal 100 Hz PWM at maximum dither level; recommended electronic controllers (see page 2.001.1 in the HydraForce Technical Catalog or our Coretek Product Guide) 1 5b S2 CARTRIDGE VALVE and PORTING KEY 1 PExx-S67C A Work Port A 2 ECxx-32 B Work Port B 3 HCV06-20 LS Load Sense Port 4 HLS06-30 P Inlet Port 5a,b EHPR98-T35 T Tank 6 RVxx-2x D Drain Tank 7 CVxx-20 S1, S2 Solenoid 1, 2 OPERATION When de-energized, no pilot pressure is applied to the PE valve. With power applied to either EHPR1 or EHPR2, flow is allowed to pass from P to either work port. The ECxx-32 ensures constant pressure drop across the metering spool to provide consistent performance regardless of inlet or load conditions. The valve spool is symmetrical, providing meter-in/meter-out control. Optional features include: • Port reliefs to limit maximum work port pressure or protect the actuator against sudden shock load. • Anti-cavitation check valves to ensure the cylinder remains filled with oil in case it is moved by an external force other than the hydraulic pump. • Load sense checks valves can be used to allow multiple work sections to be connected in parallel. • A cross port relief can be installed between the work ports to limit the torque or force that the actuator can apply FEATURES • Ideal for double-acting cylinder applications. • Continuous duty unitized, molded coil or weather tight IP69-rated E-coil • Hardened parts for long life. • Cartridges are voltage interchangeable and easy to service • Efficient wet-armature construction. • Choice of compensation values • Industry-common cavities RATINGS Operating Pressure bar/psi Flow Rating lpm/gpm PE12-S67C 160 spring 32.2 lpm/8.5 gpm 220 spring 36.0 lpm/9.5 gpm PE16-S67C 240 bar/3500 psi 80 spring 49.3 lpm/13.0 gpm 160 spring 72.0 lpm/19 gpm 200 spring 83.4 lpm/22 gpm Hysteresis: Less than 7% Coil Duty Rating: Continuous up to 115% of nominal voltage Oil Viscosity: 32 cSt/150 sus oil at 40C (104F) ® 00.04.10 HYDRAFORCE.com
Performance Charts - PExx-S67C PERFORMANCE FLOW lpm/gpm 52.9/14 45.4/12 37.8/10 30.2/8 22.7/6 15.1/4 7.5/2 PE12-S67C FLOW vs. PILOT PRESSURE with EC12-32 Pressure Compensator options: 15.2 bar/220 psi - - -; 11.0 bar/160 psi Port 3 to 2 Port 3 to 4 FLOW lpm/gpm 151.4/40 132.4/35 113.5/30 94.6/25 75.7/20 56.7/15 37.8/10 18.9/5 PE16-S67C FLOW VS. PILOT PRESSURE 13.8 bar/200 psi Compensation —— 11.0 bar/160 psi Compensation 5.5 bar/80 psi Compensation Port 3 to 4 Port 3 to 2 -22.4 -325 1.2 0.6 -13.8 -200 1.0 0.5 -6.9 -100 0 6.9 100 PILOT PRESSURE bar/psi 0.8 0.4 0.55 0 0.55 0.275 0 0.275 CURRENT mA 12V/24V 13.8 200 0.8 0.4 1.0 0.5 22.4 325 1.2 0.6 -27.5 -400 1.2 0.6 -20.7 -300 1.0 0.5 -13.8 -200 -6.9 -100 0 0 6.9 100 13.8 200 PILOT PRESSURE bar/psi 0.8 0.4 0.55 0 0.55 0.275 0 0.275 CURRENT mA 12V/24V 0.8 0.4 20.7 300 1.0 0.5 27.5 400 1.2 0.6 76/15 PE12-S67C FLOW vs. LOAD PRESSURE at Pilot Pressure of 27.6 bar/400 psi with EC12-32 Pressure Compensator options: 15.2 bar/220 psi – – –; 11.0 bar/160 psi Port 3 to 2 Port 3 to 4 91/24 PE16-S67C FLOW vs. LOAD PRESSURE at Pilot Pressure of 20.7 bar/300 psi with EC16-32 Pressure Compensator options: 13.7 bar/200 psi - - -; 11.0 bar/160 psi – –; 5.5 bar/80 psi Port 3 to 2 Port 3 to 4 FLOW lpm/gpm 61/12 45/9 30/6 15/3 FLOW lpm/gpm 76/20 61/16 45/12 30/8 15/4 -207 -3000 -138 -2000 -69 -1000 0 69 1000 LOAD PRESSURE bar/psi 138 2000 207 3000 -207 -3000 -138 -2000 -69 -1000 0 69 1000 LOAD PRESSURE bar/psi 138 2000 207 3000 55.1/800 PE12-S67C PRESSURE DROP Pilot Pressure at 27.6 bar/400 psi Port B to T Port A to T Port P to A Port P to B 27.5/400 PE16-S67C PRESSURE DROP Pilot Pressure at 27.6 bar/400 psi Port B to T Port A to T Port P to A Port P to B PRESSURE DROP bar/psi 48.2/700 41.3/600 34.4/500 27.5/400 20.6/300 6.8/200 6.8/100 PRESSURE DROP bar/psi 24.1/350 20.6/300 17.2/250 13.7/200 10.3/150 6.8/100 3.4/50 94.6 75.7 56.7 37.8 18.9 0 18.9 37.8 56.7 75.7 94.6 94.6 75.7 56.7 37.8 18.9 0 18.9 25 20 15 10 5 5 10 15 20 25 5 37.8 10 56.7 15 75.7 94.6 25 20 15 10 5 20 25 FLOW lpm/gpm FLOW lpm/gpm Note: Pressure drop performance is based upon cavity machining and associated port connections machined in accordance with HydraForce cavity specifications. Pressure drop performance is subject to change based on actual manifold/circuit design. TO ORDER To order, refer to ordering information for the individual cartridge valves. Directional Control Elements Control Options 1 2 3 4 5 a & b 6 7 Flow Rating Directional Valve Compensator 32.2 lpm/8.5 gpm EC12-32-0-N-160 PE12-S67C 36.0lpm/9.5 gpm EC12-32-0-N-220 49.3 lpm/13 gpm EC16-32-0-N-80 72.0 lpm/19 gpm PE16-S67C EC16-32-0-N-160 83.4 lpm/22 gpm EC16-32-0-N-200 Load Sense Check Valve Load Shuttle Pressure Reducing/ Relieving Valve Work Port Relief Valves Anti-Cavitation Check Valve HCV06-20 HLS06-30 EHPR98-T35 RV08-20 CV10-20 ® HYDRAFORCE.com 00.04.11
Page 1 and 2: B1 A1 B2 A2 B3 A3 EPFR1 T P LS1 EC1
Page 3 and 4: A Word About Safety WARNING READ TH
Page 5 and 6: INTEGR8 - Engineered Hydraulic Cont
Page 7 and 8: Theory of Operation - Direct-Acting
Page 9 and 10: Performance Charts - Standard Fine
Page 11 and 12: Ordering Information - SPxx-20 and
Page 13 and 14: Performance Charts - Standard Fine
Page 15 and 16: Ordering Information - SPxx-21 Mete
Page 17 and 18: Load-Sense System Basics For exampl
Page 19 and 20: Theory of Operation - Direct-Acting
Page 21 and 22: Performance Charts - SPxx-47C PERFO
Page 23 and 24: Performance Charts - SPxx-47D PERFO
Page 25 and 26: Pilot-Operated Solutions Pilot-oper
Page 27: A A Pilot-Operated Solutions Figure
Page 31 and 32: Performance Charts - PExx-S67D PERF
Page 33 and 34: Performance Charts - PExx-S67H PERF
Page 35 and 36: Performance Charts - PExx-S67K PERF

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