Mueller Industries A17939 Check Valve 320074-702 significantly lowering heating and cooling

significantly lowering heating and cooling loads

Compact Design: Small footprint facilitates easy installation in cluttered mechanical rooms or inside OEM control panels

Enhanced Motor Protection: Integrated internal overload protection prevents failure during electrical fluctuations or thermal stress

it functions without requiring an electrical connection

allowing you to use existing inventory or preferred damper brands

Mueller Industries A17939 Check Valve 320074-702 significantly lowering heating and coolingThe 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