NEC SC-UPCIN-3 Switching value I/O module

Maximum Adjustable Pressures See model code above. Pressures are maximum controllable and each model selected should be well within the range given to afford fine increments of adjustment Drain must be piped directly to tank through a surge free line to ensure that there is no back pressure at the valve drain port “Y”. Transient pressure must be avoided. Any pressure at the drain port adds to the pressure setting of the valve The operation of these pressure reducing modules is such that reduced outlet pressure is maintained constant, regardless of variation of inlet pressure above the selected pressure setting.

Pressure Setting

 Adjustment of reduced outlet pressure is accomplished by loosening jam nut and turning pressure adjustment control. Clockwise rotation increases pressure; counterclockwise rotation decreases pressure. Control adjustment has stops for minimum and maximum pressure.

Remote Pressure

 Adjustment Reduced pressure may be adjusted remotely by connecting remote control connection to the pressure inlet port of a CGR-02-*-3* valve or C-175-*-2* valve.Pressure setting of the main valve must be higher than that of the remote control.

Drain 

“Y” port must be piped directly to tank through a surge free line so there’s no back pressure at the valve drain port. Transient pressure must not exceed 0,35 bar (5 psi). Port “B” (Type L) and cover drain (Type E) may be subjected to pressure up to 210 bar (3000 psi); this pressure is additive to the reduced pressure setting. [4.] Contact your local distributor or Vickers representative if maximum inlet pressure is needed with minimum rated reduced pressure.

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