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Dual Backflow Preventer Atmospheric Vent 1/2" x 1/2" Female Union

Item #:9DM3SW1/2 
Manufacturer Item: 9DM3SW12
Manufacturer: WATTS REGULATOR CO
Watts Water 9DM3SW1/2 Dual Backflow Preventer Atmospheric Vent
9DM3SW1/2
Watts 9DM3-S Forged Brass Dual Check Backflow Preventer with Intermediate Atmospheric Vent, 1/2", Female Union
  • It prevent the reverse flow of hot or cold polluted water from entering into the potable water supply
  • It consists of a brass body with stainless steel internal parts, integral strainer, and two durable, tight-sealing, rubber check valves
  • For continuous pressure, non-health hazard applications in smaller supply lines
  • 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
  • True line-sized construction allows the check modules to open further allowing dirt and debris to pass more freely reducing check fouling
  • Maximum flow at low pressure drop
  • Furnished with union connections to facilitate removal and replacement for maintenance
  • Compact for economy combined with performance
  • Design simplicity for easy maintenance
  • Can be installed vertically or horizontally
Sid Harvey Item #:9DM3SW1/2: Replaces Part #:'s : 40588,
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Valves Relief and Pressure

Brand Name
Watts Water
Type
Dual Check Valve
Pressure Setting
175 PSI
Inlet Size
1/2" OD Union
Outlet Size
1/2" OD Union
9DM3SW1/2
Dual Backflow Preventer Atmospheric Vent 1/2" x 1/2" Female Union
Quantity: