The Ruelco SS-E electric differential pressure switch is a direct acting valve that is operated by pressure acting on a piston opposing an adjustable spring force. It functions as either a normally closed or normally open valve, depending on the contacts used on the microswitch. Pressure applied to the sense port will cause the valve to operate.

• 316 stainless steel construction (models to N.A.C.E. MR0175 available).
• Differential pressure range from .5-80 PSI.
• Holds constant and accurate set points.
• Designed for 1% plus or minus repeatability on set points.
• Minimum deadband between trip and reset pressure.
• Spring may be replaced with instrument and sensing pressure present in the sensor.
• Optional mounting brackets available.
• SPDT or DPDT microswitches available.
• SIL 3 Certified models available.

Safety Integrity Level