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“A” Pilot Operated Check Valve

Shutoff and Check Valves

  • Sealed pilot piston eliminates cross circuit leakage.
  • 5:1 Ratio of Pilot to Check pressure for release.
  • Filters on each port location.
  • Unclamp device sequencer, provides a way to sequence single circuit unclamp timing.
  • Requires a “B” pilot to open “A” line check valve (requires a double acting control valve to operate single acting systems).
  • Stainless steel inner valve construction.
  • Maximum operating pressure 5,000 psi.

NOTE: Field repair requires a special Check Valve Installation Tool. Please order Model No. 65-6000-00.

For proper sealing, mating surface must be flat within 0.003 in with a maximum 63 µ in Ra surface finish.

Model No.
70-3311-11

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