The Ashcroft® P-series pressure switch was designed for use with harsh applications where uncompromising protection is required. This accurate and reliable switch provides long-cycle life, while its rugged, explosion-proof housing provides superior protection. This switch is ideal for pressure control, shutdown or alarm operations.
Process Market:
Refineries
Chemical and Petrochemical plants
Water and Sewage Treatment Facilities
Steel Mills
Industrial Market:
Pumps, Compressors and Turbines
Boilers and Burners
Reverse Osmosis Systems
Setpoint
Dual independent setpoints, fixed deadband
Single setpoint, adjustable deadband
Single setpoint, fixed deadband
Setpoint Repeatability (Accuracy)
±1% of span (Additional setpoint shift of ±1% of range per 50°F from initial setpoint set at 70°F typical)
Deadband
Fixed or adjustable
Enclosure Ratings
NEMA 7/9, IP66
Enclosure Material
Epoxy coated aluminum
Pressure Connection
1/4 NPT Female and 1/2 NPT Male Combination
1/4 NPT Female, 1/2 NPT Female,
Electrical Termination
¾ NPT Female (STD.)
½ NPT Female, M20 X 1.5 (OPT.)
Diaphragm/Actuator Material
Buna-N®, Teflon®, Viton®, 316L stainless steel, or Monel®
Pressure Ranges
Vacuum to 3,000 psi
Ambient Temperature Range
-20°F to 150°F (-29°C to 65°C)
All units calibrated at 70°F
Process Temperature
0°F to 150°F (Buna N or Teflon diaphragm)
0°F to 300°F (Stainless steel or Monel diaphragm)
20°F to 300°F (Viton diaphragm)
