ZRP32 switch is capable to sense tiny pressure change and widely used to control the flue of aerator, to monitor and fan and air conditioner; It is also suit for over heating protection and frost protection in industrial cooling system.

ZRP31 is capable of detecting pressures as low as 0.05 inches of water. Factory calibrated units maintain set point tolerance of +/- 10% over a temperature range of -40°F to 185°F due to its molded silicone diaphragm and stability of its glass filled polyester body. We offers multiple electrical terminations and mounting options as well as bleed holes and 3 different size orifices.

Pressure Range: 3P.S.I~700P.S.I； Settings P.S. Open: 450 ；Close: - ；Setting Tolerance: Open: +/-15 ；Close: +/-15 ；Additional： High Pressure Manual Reset

Pressure Range: 3P.S.I~700P.S.I； Settings P.S. Open: 350 ；Close: - ；Setting Tolerance: Open: +/-15 ；Close: +/-15 ；Additional： High Pressure Manual Reset

Pressure Range: 3P.S.I~700P.S.I； Settings P.S. Open: 450 ；Close: 250 ；Setting Tolerance: Open: +/-15 ；Close: +/-15 ；Additional： High Pressure Automatic Reset

Pressure Range: 3P.S.I~700P.S.I； Settings P.S. Open: 400 ；Close: 200 ；Setting Tolerance: Open: +/-15 ；Close: +/-15 ；Additional： High Pressure Automatic Reset

Pressure Range: 3P.S.I~700P.S.I； Settings P.S. Open: 350 ；Close: 250 ；Setting Tolerance: Open: +/-15 ；Close: +/-15 ；Additional： High Pressure Automatic Reset

Pressure Range: 3P.S.I~700P.S.I； Settings P.S. Open: 300 ；Close: 200 ；Setting Tolerance: Open: +/-15 ；Close: +/-15 ；Additional： High Pressure Automatic Reset

Pressure Range: 3P.S.I~700P.S.I； Settings P.S. Open: 250 ；Close: 150 ；Setting Tolerance: Open: +/-15 ；Close: +/-15 ；Additional： High Pressure Automatic Reset