The Betts Guardian RVP3NT-35 Weld Stub Pressure Valve is a spring-loaded, reclosing pressure relief device for a cargo tank's primary pressure relief system, designed, tested, and marked in accordance with 49CFR 178.345-10, 178.347-4, and 178.348-4. It features a compact, optimized flow design in 316 stainless steel with Teflon seals and wear components, along with a safety stop screw to help prevent accidental unthreading of the housing and seal tabs on the shroud for added security. Simple in-place maintenance is supported, and an ECTFE (Halar) coated option is available alongside multiple sizes, mounting options, and seal options.
- Size: 3 inches
- Connection: NPSF Thread (Weld Stub)
- Body Material: 316 Stainless Steel
- Seal Material: PTFE
- Tank MAWP Rating: 35 psig
- Coating Option: ECTFE (Halar) Available




