Atmospherically referenced direct-acting sequence valves (2 port) with reverse-flow check  have uses as follows:

• Supply a secondary circuit with flow once the pressure at port 1 exceeds the valve setting
• Suitable for use in load holding applications

Specifications of Atmospherically referenced direct-acting sequence valves with reverse-flow check valves:

• Approximately 1 drop of fluid will pass into the vented spring chamber every 4000 cycles

Special Features of Atmospherically referenced direct-acting sequence valves with reverse-flow check valves:

• These valves incorporate an integral check valve to provide reverse flow from port 2 to port 1
• Pressure setting of valve controls the pressure at port 1 relative to the atmospheric vent.
• Drain line is not required

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