Pressure Switches
Pressure switches open or close an electrical contact at a set pressure. They control pumps, compressors, and other equipment (a simple way to maintain or monitor pressure in a system) and serve safety and control roles in HVAC, hydraulic systems, and water supply management.
Mechanical and electronic versions are available in configurations covering different pressure ranges, media, and applications, with adjustable set points. Pressure switch products are listed below.
KPH
Compact Pressure Switch
up to 6,100 PSIG | Aluminum Body | Gas or Liquids | up to 1,000 cSt | Adjustable Snap-Action SPDT Switch
Starting at $298
Fast Delivery
Fittings
1/4" NPT, G 1/4, or 7/16"-20 UNF
KPH-8000
Gases or Compatible Liquids
KPH-8200
Compatible Liquids Only
Repeatability
±4% of Final Value (±3% for Vacuum)
Switch
Adjustable, Snap-Action SPDT
Ranges - Vacuum to 6091 PSIG
Suitable for Pneumatic or Hydraulic Applications
DIN 43 650A Plug Connector Standard
KPH300
Compact Pressure Switch
up to 4,600 PSIG | 1/4" NPT | up to 176 °F | Adjustable SPDT Switch | CE Compliant to Suppress RFI, EMI, and ESD
Starting at $119
Fast Delivery
Ranges
-5...-28 Hg to 450...4600 PSIG
Wetted Materials
Zinc-Nickel Plated Steel and NBR
Media Temperature Range
-4...176 °F (80 °C)
CE Compliant to Suppress RFI, EMI, and ESD
Field Adjustable Setpoint
Diaphragm or Piston Type Sensing Element
SCH
Mechanical Pressure Switches
-1...0.1 bar | -250...100 mbar | 1...16 mbar up to 16...63 bar | G Connections | Copper, Brass, SS, NBR | up to 70 °C
Starting at Call for Pricing
Switching Range
-1 ... + 0.1 bar- 250 ... +100 mbar, 1 ... 16 mbar and 16 ... 63 bar
Material
Copper, Brass, Stainless Steel, NBR
Overpressure, Vacuum Pressure, Differential Pressure
Low Switching Point Drift
SCH-PSB
Differential Pressure Switch for HVAC
up to 1,000 Pa | up to 1.45 PSI | up to 158 °F | Hose Barb Connection | For Air Filters and Ventilator Monitoring
Measuring Ranges
20...300 Pa, 50...500 Pa & 200...1000 Pa
Max. Pressure
10 kPa (1.45 PSI) for All Ranges
Media and Ambient Temperature Range
-4...158 °F (70 °C)
Media
Air, Non-combustible and Non-aggressive Gases
Monitoring of Air Filters and Ventilators
Monitoring Industrial Cooling Air Circuits
Overheating Protection for Heater Fans
Monitoring Flows in Ventilation Ducts
Controlling Air and Fire-Protection Flaps
Frost Protection for Heat Exchangers