Series AV-A soft start-up valves allow the user to set the initial rate of system pressurizations to minimize system shock. When deactivated, the valve quickly exhausts the system for safe servicing of equipment.
M12 connector pin number X X VP544(R)/744(R)-X538 Internal pilot External pilot External pilot/With check valve 2(A) 2(A) 2(A) y t r y t r y t r w q e w q e w q e 3(R) 3(R) 3(R) y t r y t r y t r w q e w q e w q e 3(R) 3(R) 3(R) 1(P) 1(P) 1(P) X X VP544(R)/744(R)-X555 Internal pilot External pilot External pilot/With check valve 2(A) 2(A) 2(A) y t r y t r y t r 3(R) w q e 3(R) w q e w q e