Details
The Betts? GuardianTM combination valve is a spring loaded reclosing pressure and vacuum relief device for use on a cargo tank?s primary pressure relief and vacuum relief systems. The combination relief valve is designed, tested and marked in accordance with 49CFR 178.345-10, 49CFR 178.347-4 and 49CFR 178.348-4. Compact, optimized flow design. 316 Stainless Steel construction. Teflon seals and wear components. Safety Stop Screw to help prevent accidental unthreading of housing. Seal tabs on shroud for security measures. Simple In-Place Maintenance. Available ECTFE (Halar ) coated. Multiple sizes and mounting options. Multiple seal options. Vibration damping vacuum vent. 4? and 3? ANSI flanged connections ,
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