- Groove x Groove
- cULus and FM approved
- Installs in vertical or horizontal positions
- Meets ASTM A126 Class “B” rating
- Standard and shot gun configurations
- Spring loaded stainless steel clapper, EPDM rubber facing
- Cast Iron body, brass seat, bronze hinge pins
- Leak tight seal against back pressure greater than 1 PSI
| Valve Standard | Valve Shotgun Style | Valve Trim Only | Size |
|---|---|---|---|
| 321526 | 321526-S | 321526-T | 2" |
| 321533 | 321533-S | 321533-T | 2½" |
| 321539 | 321539-S | 321539-T | 3" |
| 321547 | 321547-S | 321547-T | 4" |
| 321557 | 321557-S | 321557-T | 6" |
Additional Files
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