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.
Flow Rate Characteristics Series AV2000-A AV3000-A AV4000-A AV5000-A Port size 1(P), 2(A) 1/4 3/8 1/2 3/4 1 3(R) 1/4 3/8 1/2 3/4 1(P) R 2(A) C[dm3/(sbar)] 9.2 13.1 19.2 34.8 41.3 b 0.36 0.27 0.32 0.66 0.34 Cv 2.4 3.1 5.1 12.6 13.7 Flow rate characteristics 2(A) R 3(R) C[dm3/(sbar)] 8.8 9.2 10.1 23.7 b 0.46 0.48 0.55 0.67 Cv 2.5 2.6 3.2 9.2 Pressure for switching from low speed air supply
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
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
Fittings with sealant: R, NPT 1. First, tighten the fitting by hand, then use a wrench appropriate for the hexagon flats of the body to tighten it a further two or three turns. For a tightening torque guide, see the table below. 6.