Series 9D 1/2 in. Brass Union Female Threaded x Union Joint Backflow Preventer

Part #W9DM3D  |  Item #35572  |  Manufacturer Part #0061935

$165.38 EACH

Valve Size:

Packaging Info:
  • Quantity Per 
  • Each: 1
  • Inner pack: 1
  • Case: 12

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This Item: Watts Series 9D 1/2 in. Brass Union Female Threaded x Union Joint Backflow Preventer /$165.38

Product Details

  • True line-sized construction allows the check modules to open further allowing dirt and debris to pass more freely reducing check fouling
  • Stainless steel internal parts
  • 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


ADA Compliant: No

ASSE Standards: ASSE 1012

Application: Non-health Hazard

BAA Compliant: Yes

CSA Certified: CSA B64

Collection: Series 9D

Color Finish: Brass

Color Finish Category: Brass Tones

Depth: 2-1/2 in

End Connection 1: Union FNPT

End Connection 2: Union

End Connections: Union FNPT x Union

FM Approved: No

Height: 2-9/16 in

High Pressure: 175

IAPMO Listed: No

Installation Type: Horizontal, Vertical

Lead Law Compliance Level: Approved for Non-Potable Water Applications

Length: 4-15/16 in

Low Pressure: 25

Material: Stainless Steel

Maximum Temperature: 250

Minimum Temperature: 33

NSF Certified: No

Recommended Valve Application: Water

Type: W9DM3D

UL Listed: No

Valve Body Material: Brass

Valve Body Style: Inline

Valve Disc Material: Rubber

Valve Seat Material: Rubber

Valve Size: 1/2 in

Valve Type: Dual Check Valve

Weight: 1.5