DRIVE CYLINDER VALVES

SINGLE PILOT

MODEL APSRR / VAPSRT 
This model incorporates a 4-way Single Pressure Pilot Valve. A continuous pilot pressure applied to “IN” side of valve will move the piston its full stroke. When the pilot pressure is released, the piston will return to its original position. Pilot pressure is normally supplied through a 3-way N.C. Valve.

Model is supplied with the rod normally retracted. (pilot pressure to extend rod) Pilot pressure must be at least 75% of the operating pressure.

SINGLE PILOT

MODEL VARR / VSAT
(AUTOMATIC RETURN) 
This model incorporates a 4-way Double Bleed Pilot Valve. A momentary (NOT continuous) actuation of a Bleeder Valve is required to move the piston Its full stroke. Upon reaching its FULL stroke, the piston will automatically return to its original position. This model is supplied with the rod normally retracted (manual bleed to extend rod) Due to internal construction and application requirements, there can be a loss of approximately 1/8” to 1/4” of stroke. Bleeder Valve Model BV100 is supplied on these models

DOUBLE PILOT

MODEL AP / VAPT 
This model incorporates a 4-way Double Pressure Pilot Valve. A momentary or maintained pilot pressure applied to one side of the valve will move the rod its full stroke. The piston will remain in that position under pressure until a pilot pressure is released and applied to the other side, which will cause the piston to return to its original position.

If a maintained pilot pressure is applied, it must be released before the other pilot pressure is applied. Pilot pressure must be at least 25% of the operating pressure.