OS & Y Gates Flag x Flag Double Check Detector Backflow Preventer
The 350ASTDA Double Check Detector Backflow Preventer features a stainless Steel body, making it ideal for fire protection applications. Its metered bypass detects leaks and unauthorized water use. Used in low health hazard applications.
Features - 4" double check detector assembly with stainless Steel body
- Short lay-length for small space installation
- Reliable performance and improved flow characteristics from patented compound check, allowing for installation in lower-pressure systems
- As 350ASTDAR for backflow replacements/retrofit
- Lower maintenance costs from corrosion resistance of stainless body
- Groovedor grooved x flanged end connections for installation versatility
Specifications - End Connection 1: Flanged
- End Connection 2: Flanged
- End Connections: Flanged
- FM Approved: Yes
- Height: 2-1/2 in.
- Lead Law Compliant: Yes
- Length: 34-7/8 in.
- Material: Stainless Steel
- Maximum Pressure: 175 PSI
- Maximum Temperature: 140
- NSF Certified: Yes
- NSF Type: (NSF 372, NSF 61 Annex G)
- Number of Handles: Two Handle
- Recommended Valve Application: Water
- Temperature Rating: 140
- UL Listed: Yes
- Valve Operator: Wheel Handle
- Valve Seat Material: EPDM
- Valve Size: 4 in.
- Pressure Class: 150 PSI
- Recommended Valve Application: Water
- Temperature Rating: 33
- UL Listed: Yes
- Valve Body Material: Stainless Steel
- Valve Body Style: Inline
- Valve Disc Material: Elastomer
- Valve Port Opening: Full Port
- Valve Seat Material: EPDM
- Valve Size: 4 in.
- SKU: HMW612278
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