7250 psi maxHolds clamping pressure until released by a separate pilot pressure line (allows only one-way flow until released). Can be used as a safety device in case the fluid line to the fixture could become damaged. Can also be used to prevent workpieces from floating between opposing clamps. Leakage-free valve design with spring-loaded ball seat. The version shown here is used for in-line mounting with standard fittings and exposed fluid lines. Also available in a manifold-mounted version.
Flow from B โ> A is free flow. Return flow from A โ> B is locked until hydraulically unlocked by pressurizing the control port Z.
Pilot-Operated Check Valves are not suitable for locking double-acting swing clamps (pull-type cylinders). Due to the unfavorable surface-area ratio of these elements, the control pressure is not sufficient for unlocking and dangerous pressure intensification can occur.
Mount in-line, in any position, horizontal or vertical. Three 1/4" BSPP ports (A and B ports are 1/2" BSPP on high-capacity version).
| Size | Maximum Flow Rate (cu In/min) | Minimum Pilot Pressure (PSI) | Pilot Fluid Volume (cu In) | Port Size A & B | Port Size Z | C (mm) | D (mm) | E (mm) | Sw (mm) | Weight (lbs) |
| High Capacity | 3360 cu in/min | 0.38 x PA + 175 PSI | 0.02 cu.in | 1/2 BSPP | 1/4 BSPP | 100mm | 36.5mm | 31mm | 32mm | 1.3 lbs. |
714.897.1700
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