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1/2" AB-40 Feed Valve, Combo Union
The AB-40 Boiler Feed Valve features an all brass body, inbuilt strainer, special heat resistant diaphragm and seat disc. Check valve is built in.The AB-40 Valves automatically keep the system filled with water at the desired reduced operating pressure: ordinarily 14 psi in one, two or three story homes. Body, Strainer, Seat - Brass Material. Seat Disc, Diaphragm - Buna-N.
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