Butterfly Safety Valves
Butterfly-style safety valves for large-diameter, low-pressure relief. Carbon and stainless steel. Sizes from 4" to 48". High-volume discharge for tank venting and atmospheric relief.
Available Products
| Material | Grade | Sizes | Pressure Class | End Connection | Standard |
|---|---|---|---|---|---|
| Carbon Steel | ASTM A216 WCB | 4" - 48" | 150#, 300# | Flanged (RF) | API 2000 |
| Stainless Steel | ASTM A351 CF8/CF8M | 4" - 36" | 150#, 300# | Flanged (RF) | API 2000 |
| Alloy Steel | ASTM A217 WC6/WC9 | 4" - 24" | 150#, 300# | Flanged (RF) | API 2000 |
Designed for tank venting and low-pressure atmospheric relief.
Pressure & Temperature Ratings
All safety valves are rated per API 520/526 and ASME Section VIII pressure-temperature tables. Set pressure, relieving capacity, and back pressure tolerance are certified per applicable codes. For specific sizing and certification data, contact our team or refer to the product catalog.
Other Valve Products
Globe Safety Valves
Pressure relief valves with precise set pressure control for steam and gas applications.
Gate Safety Valves
High-capacity pressure relief valves for liquid service and large volume discharge.
Ball Safety Valves
Quick-opening safety valves with full-bore relief capacity for critical applications.