Pressure Switches

The Whitman Controls J205LG NEMA 4 High Pressure Low Set Point Pres¬sure Switches are among our most versatile offering, affording the end user an extensive operating environment and a wide range of set point optionality. These switches can be exposed to high pressure without compromising integrity or switch functionality. The J205LG is the NEMA 4 rated weather-proof, liquid-resistant version of the J205G, suitable for outside applications or in areas of condensing humidity. Uses include gas bottle change switches and oil or water supply control. They are frequent¬ly used in pump and reservoir applications. The internals are stainless steel with a diaphragm o-ring that is available in numerous compounds such as Buna (standard), Viton, Neoprene and Kalrez. The set point is fac¬tory set to customer specifications and is non-adjustable several electrical connection options.

Key Features:

• Overpressure feature, allowing the switch to be subject to high pressure without compromising integrity
• Weather-proof and liquid resistant
• NEMA 4 Rated
• Set point options: Factory set, field adjustable, or a combination
• Extensive operating temperature range
• Wide range of electrical interfaces available
• SPDT or SPST availability
• Wide range of set point optionality

Specifications:

• Set point range: 0.80 to 800 PSIG
• Max System pressure: 5,000 PSIG
• Temperature range: -65°F to +225°F (-54°C to +107°C)
• Amps: 5 Amps Max
• Sensor Element: Diaphragm
• Weight: 4.0 oz (varies slightly with electrical interface selection)
• Wetted Parts:
• Diaphragm: 316 Stainless Steel
• Seal: Loctite #271
• Body / Fitting: 303 Stainless Steel
• O-Ring: Buna N Standard (Special material available upon request)
• Standard Thread: ⅛-27 NPT male