The Betts Guardian RVC4AT-35 Combo Valve is a spring-loaded, reclosing pressure and vacuum relief device for a cargo tank's primary pressure and vacuum relief system, designed, tested, and marked in accordance with 49CFR178.345-10, 178.347-4, and 178.348-4. It features 316 stainless steel construction with Teflon seals and wear components, a safety stop screw to help prevent accidental unthreading of the housing, and seal tabs on the shroud for added security. The compact, optimized flow design mounts via a 4-inch ANSI flange connection and is rated for a 35 psig MAWP tank. It's also available with an ECTFE (Halar) coating.
- Size: 4 inches
- Connection: ANSI Flange
- Body Material: 316 Stainless Steel
- Seal Material: PTFE
- Tank MAWP Rating: 35 psig
- Coating Option: ECTFE (Halar) Available




