Mueller Industries A17939 Check Valve 319847-401 2-pole definite purpose contactor designed

2-pole definite purpose contactor designed for high-cycle reliability in residential and light commercial HVAC applications

the Siemens industrial control transformer is dual-rated for 50/60 Hz

this mechanical assembly features a 1" female NPT inlet and a male straight-pipe threaded outlet designed for secure locknut mounting against reservoir walls

the Carrier P282-0323 is specifically designed for 208/240V control circuits

This genuine OEM Temperature and Pressure Relief Valve is engineered for heavy-duty commercial applications

Mueller Industries A17939 Check Valve 319847-401 2-pole definite purpose contactor designedThe Mueller Industries A17939 is a high performance 7 8" Magnetic Check Valve designed for critical backflow prevention in commercial refrigeration and air conditioning systems. Engineered with a hermetically formed solid copper body, this valve eliminates potential leak paths, ensuring system integrity under high pressure conditions up to 800 PSI (55 bar). The internal magnetic mechanism provides a positive seal with a minimum pressure differential