Watts
Series 957N 8 in. Stainless Steel Flanged Backflow Preventer
Part #W957NOSYX | Item #2148554 | Manufacturer Part #0111594
Valve Size:
Packaging Info:
- Quantity Per
- Each: 1,
- Inner pack: 1
How to get it:
Product Details
- 304 (schedule 40) stainless steel housing and sleeve
- UL and FM outside stem and yoke resilient seated gate valves
- Approved for horizontal N pattern installation
- Replaceable check disc rubber
- Bottom mounted cast stainless steel relief valve
- Compact design allows small enclosures to be used
- Patented torsion spring check modules for ease of serviceability
- Groove couplings for ease of installation and pipe alignment
- The maximum working pressure is 175 psi (12.06 bar)
- 70% lighter than traditional designs
Specifications
ADA Compliant: No
ANSI Specifications: ANSI 61-G
ASSE Standards: ASSE 1013
AWWA Specifications: AWWA C-511 1997
BAA Compliant: Yes
CSA Certified: CSA B64.4
Collection: Series 957N
Color Finish: Stainless Steel
Color Finish Category: Stainless Steel
Depth: 67-19/50 in
End Connection 1: Flanged
End Connection 2: Flanged
End Connections: Flanged
FM Approved: Yes
Handle Material: Steel
Height: 36-7/8 in
High Pressure: 175
IAPMO Listed: No
Installation Type: Horizontal
Lead Law Compliant: Yes
Length: 49-3/4 in
Material: Stainless Steel
Material Type: 304
Maximum Temperature: 110
NSF Certified: Yes
NSF Specifications: NSF 61-G
Number of Handles: Two Handle
Pressure Class: 400#
Recommended Valve Application: Health Hazard, Water
Schedule Class: 40
Temperature Range: 33 to 140 Deg F (0.5 to 60 Deg C)
UL Listed: Yes
Valve Body Material: Forged Brass
Valve Body Style: N Pattern
Valve Disc Material: Rubber
Valve Operator: Wheel Handle
Valve Seat Material: PTFE
Valve Size: 8 in
Valve Stem: Outside
Valve Type: Reduced Pressure Zone Assembly
Weight: 558
Width: 67-1/2 in