Series 774 3 in. Flanged 175 psi Stainless Steel Double Check Valve Assembly

Part #W774OSY  |  Manufacturer Part #0437709

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Product Details

  • Stainless steel construction provides long term corrosion protection and maximum strength
  • Single top access cover with two-bolt grooved style coupling for easy maintenance
  • Thermoplastic and stainless steel check valves for trouble free operation
  • Compact construction allows for smaller vaults and enclosures

Lead Law Compliant



ADA Compliant: No

ANSI Specifications: ANSI 61 Annex G

ASSE Standards: ASSE 1015

AWWA Specifications: AWWA C-510 1992

BAA Compliant: Yes

CSA Certified: CSA B64.5

Collection: Series 774

Color Finish: Stainless Steel

Color Finish Category: Stainless Steel

Depth: 39-63/100 in

End Connection 1: Flanged

End Connection 2: Flanged

End Connections: Flanged

FM Approved: Yes

Fitting Size 1: 3 in

Fitting Size 2: 3 in

Fitting Sizes: 3 in

Height: 26-3/4 in

High Pressure: 175

IAPMO Listed: No

Lead Law Compliant: Yes

Length: 38 in

Material: Stainless Steel

Maximum Pressure: 175 psi

Maximum Temperature: 110

Minimum Temperature: 33

NSF Certified: Yes

NSF Specifications: NSF 61 Annex G

Type: W774OSYM

UL Listed: Yes

Valve Body Material: Stainless Steel

Valve Body Style: OS&Y

Valve Operator: Wheel Handle

Valve Size: 3 in

Valve Type: Backflow Preventer

Weight: 215

Width: 26 in