watts 9d-m3backflow preventer

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Watts Series 9D Dual Check Valves Series 9D is specially made for smaller supply lines and ideally suited for laboratory equipment, processing tanks, sterilizers, dairy equipment and similar applications. It is particularly recommended for boiler feed lines to prevent backflow when supply pressure falls below system pressure. Series 9D is suitable for use on hot or cold water and can be used under continuous pressure. It features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing. A secondary check valve utilizes a rubber disc-to-metal seating. In the event of fouling of the downstream check valve, leakage would be vented to atmosphere through the vent port thereby safeguarding the potable water system. Construction is brass body with stainless steel working parts, integral strainer and durable rubber discs. Female union inlet and outlet connections. Sizes 1⁄2" and 3⁄4". Drain is 1⁄2" thread connection. FEATURES:

Watts9Dinstallation Instructions

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ASSEbackflow preventer

watts 9d-m2backflow preventer

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WattsBackflow Preventer

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Bavco Pressure Vacuum Breaker With Ball Valve, Series/Model: Model PVB4V, Nominal Size: 1-1/2 IN, Connection Type: NPT, Pressure Rating: 150 PSIG, Bronze Body Material, Finish/Color: Powder Coated Steel Canopy, Industry Standards: ASSE 1020, CSA B64.1.2, USC FCCC And HR, IAPMO Certified, ISO 9001-2008 Registered, Temperature Rating: 33 - 180 DEG F, 9-1/4 IN Width, 10-7/8 IN Height