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Plast-O-Matic PS Series PVC Pilot Solenoid Valve, For Acids and Highly Corrosive Liquids, 2 Ways, Normally Closed, Viton Diaphragm, NPT Female

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Product Specifications
Item Shape
Seal Material Type
Material Type
PVC (Polyvinyl Chloride)
Operation Mode
Pilot Operated
Construction Type
Rugged thermoplastic construction
Brand Name
Manufacturer Series Number
Upper Temperature Range
140  Degrees Fahrenheit
Maximum Pressure
140  PSI
Connector Type
NPT Female
Style Name

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1" B007R8HUDI yes $555.00 Buy Options
1-1/2" B007R8HUSS yes $770.00 Buy Options
1/2" B007R8HTAW yes $495.37 Buy Options
2" B007R8HV8M yes $850.00 Buy Options
3/4" B007R8HU0G yes $530.00 Buy Options

Key Features

  • Normally closed, in-line design with bubble-tight shut-off
  • Minimum 5 PSI differential required
  • Patented Fail-Dry vented design
  • Resistant to atmospheric corrosion
  • PTFE Bellows barrier-type dynamic seal prevents leaking of fugitive emissions to the atmosphere

Product Description

PS Series Solenoid Valves are pilot-operated, 2- way, normally-closed valves. They require a minimum line pressure and minimum differential pressure to open and close. When the solenoid coil is de-energized, upstream pressure atop the diaphragm holds the valve closed. When the coil is energized, flow through the pilot valve creates a pressure difference across the diaphragm which opens the main valve orifice. These valves have 11-watt coils and can be energized continuously. Although these valves are normally-closed, positive, leak tight sealing requires a small inlet pressure. A minimum inlet pressure of 5 PSI is recommended. These valves should open fully at 5 PSI differential and higher. "PS" valves have very high Cv-factors. If process flow rates do not maintain 5 psid, the valve will not stay fully open, which means the pressure drop may be higher and the Cv-factor lower than anticipated. This should not adversely affect valve performance. Series PS automatically shuts off flow of highly corrosive and ultra-pure liquids. They can handle acids, caustics, solvents, chlorine solutions, sodium solutions, deionized water, reverse osmosis water, brewery processes, etc. as long as a 5 psi differential is maintained. Series PS is not suitable for solutions containing particulate matter or solutions that tend to precipitate solids. High pressure: Particularly for applications where high back-pressures (up to 70 PSI) are required e.g. controlling flow spray nozzles, high pressure chemical injections, etc. Inlet pressure to 140 PSI. Patented Fail-Dry safety design feature provides advance visual warning if seal malfunctions, while permitting valves to continue operating until maintenance can be scheduled. Cycle life in excess of 1,000,000 cycles. Energy-efficient 11 watt coil. Molded coil and standard DIN connector; designed to meet NEMA 4X. Body material: PVC.

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