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Model VAP, VSA & VAPSR – Double & Single Pilot Valves | Allen Air
Home » Valves » 4 Way 1/4, 3/8 & 1/2 NPT » MODELS VAP, VSA & VAPSR – DOUBLE & SINGLE PILOT
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MODELS VAP, VSA & VAPSR – DOUBLE & SINGLE PILOT

DOUBLE PILOT

MODEL VAP PRESSURE PILOT

A momentary or maintained pilot pressure applied to one side of the valve will cause it to shift. It will remain in that position until a pilot pressure is applied to the other side, which will cause the valve to return to its original position. If a maintained pilot pressure is employed, it must be released before the other pilot pressure is applied. Pilot pressure must be at least 25% of the operating pressure.

MODEL VSA BLEED PILOT
A separate Bleeder Valve, such as the Allenair BV100 or BV-1/8, must be installed in a line to each spool cap. Depressing one Bleeder Valve momentarily will shift the valve. It will remain in that position until the other Bleeder Valve is depressed, which will cause the valve to shift to its original position.

SINGLE PILOT

MODEL VAPSR PRESSURE PILOT
A continuous pilot pressure applied to “IN” side of the valve will shift the valve. When the pilot pressure is released the valve will shift to its original position. The pilot pressure must be at least 75% of the operating pressure.




NOTES:

  1. MODELS VAP & VAPSR: PILOT SIGNAL PRESSURIZES CYLINDER PORT DIRECTLY UNDER THAT PILOT PORT.
  2. MODEL VSA: BLEED PILOT SIGNAL PRESSURIZES CYLINDER PORT OPPOSITE THAT BLEED PILOT PORT.
  3. EXHAUST PORT IS LOCATED 180° FROM SPEED CONTROLS.

OPTION

SPECIFY HTP FOR HIGH TEMPERATURE SEALS
These seals are a fluorocarbon compound (viton) and have an operating temperaturerange of +10° F to +350°F. They will function at temperatures up to +400°F with reduced life.

Click Here To View/Download PDF For 4 Way 1/4 & 1/2 NPT

Click Here For Technical Data
Need Custom Design Or Size? Click Here
Click Here For Our Warranty Policy
Want To Be A Distributor? Click Here
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