1 Pilot Operated Normally Open Solenoid Valve

Pilot-Operated Normally Open Solenoid Valve Opens When Power Off

The pilot-operated normally open solenoid valve is a type of solenoid valve that remains open when there is a power outage, controlling the closure of the main valve through pilot operation. This kind of valve is commonly used in applications that require the medium to continue flowing in the event of a power failure.

  • Default Open: In the absence of power, the valve defaults to an open position, suitable for situations where flow is typically desired.
  • Safety: In the event of a power failure or when an emergency power cutoff is needed, the main valve remains open, preventing interruption of the process flow.
  • Energy Saving: The valve does not consume electrical energy to remain open in its normally open state, resulting in lower energy consumption under normal conditions.
  • Specification
  • Structure
  • Working Principle
  • Video
Specification
Annotated outline of the PX-K pilot-operated normally open solenoid valve.
Table 1 PX-K Pilot-Operated Normally Open Solenoid Valve Specifications
Item Port Pressure (kgf/cm2) Body Material Size A × B × C (mm)
SSV (S)PX-10K 3/8" 0.5–16 Copper/SS 68 × 49 × 118
SSV (S)PX-15K 1/2" 0.5–16 Copper/SS 68 × 49 × 118
SSV (S)PX-20K 3/4" 0.5–16 Copper/SS 76 × 57 × 125
SSV (S)PX-25K 1" 0.5–16 Copper/SS 96 × 70 × 133
SSV (S)PX-35K 1-1/4" 0.5–16 Copper/SS 120 × 70 × 133
SSV (S)PX-40K 1-1/2" 0.5–16 Copper/SS 120 × 70 × 133
SSV (S)PX-50K 2" 0.5–16 Copper/SS 150 × 112 × 169
Note:
  • Seals can be made of NBR/EPDM/VITON material for on/off control of different fluids.
  • Models with an (S) represents stainless steel material; those without are made of copper.
Structure
Features
Videos
Downloads

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