Mueller A17940 Check Valve Els PW 17895 the P47500 is calibrated for

the P47500 is calibrated for the pressure-temperature characteristics of R-22

ensure you are adjusting the gas valve regulator to meet the specific gravity requirements of local natural gas supplies

40" WC calibration for reliable safety circuit closure

In a standing pilot setup

Mueller A17940 Check Valve Els PW 17895 the P47500 is calibrated forFor field technicians and mechanical contractors, the Mueller A17940 stands as a heavy duty 1 1 8 magnetic check valve engineered to eliminate backflow in critical refrigeration and air conditioning circuits. Part of the Mueller CHECKMASTER series, this valve utilizes DuraForm technology to secure internal components without the use of braze materials. This manufacturing process prevents the overheating and warping often associated with traditional