Pressure Switches

Pressure switches open or close an electrical contact at a set pressure to start pumps, trip compressors, raise alarms and protect equipment. Seven Star LLC, an independent supplier in Muscat, supplies pressure switches from Danfoss, Hydac, United Electric Controls, Barksdale, CCS, SMC, DUNGS, Trafag, Murphy, JUMO, SOR, Dwyer, KROHNE and Festo to customers in Oman and the GCC.

Types of pressure switch in this category

Mechanical switches such as the Danfoss KP, RT, CS and MP54, Barksdale B1S Bourdon tube switches and CCS and SOR switches serve refrigeration, compressors, pumps and process plants. Explosion-proof switches like the United Electric J120 and SOR 6L suit hazardous areas. Electronic switches with displays, including the Hydac EDS 3000, 3400, 4300 and 8000 series, SMC ISE40, JUMO DELOS and KROHNE OPTIBAR PSM, give adjustable setpoints and analog outputs. Differential pressure switches such as the Dwyer Photohelic and DUNGS gas pressure switches complete the range.

How to select a pressure switch

Define pressure range, setpoint, differential (deadband), medium and temperature. Choose mechanical switches for simple, power-free switching and electronic switches for adjustable setpoints, display and analog output. Specify contact type and rating, process and electrical connection, enclosure and hazardous area approval.

Data needed for a quotation

Send the switch model or code, or range, setpoint, medium, contact rating, connection, Ex rating and quantity.