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this valve is specifically calibrated for R410A refrigerant pressures and should not be used in R22 or alternative refrigerant systems
While cleaning with a very fine abrasive (like a Scotch-Brite pad) can temporarily restore a microamp signal
Universal Application: Compatible with all standard non-corrosive refrigerants
With a fixed 2-degree differential and a snap-acting Pennswitch
Johnson Controls P47AA-4 Pressure Control 30067439-890 this valve is specifically calibratedThe Johnson Controls P47AA 4 Pressure Control is a heavy duty steam pressure limit control engineered for high limit cutout or operating control in commercial and industrial steam heating systems. This SPST pressure switch is designed to provide professional grade reliability, featuring contacts that open on pressure rise to safeguard against overpressure conditions. With a versatile electrical rating of 120 208 240 277 Vac, the P47AA 4 integrates
US$ 180.00
US$ 36.99