Betts 4 in. Guardian Pressure Valve w/ PTFE Seals & NPS Connection

Description

This 4 inch Guardian Pressure Valve has PTFE seals and should be used on a 25 MAWP tank. The Betts’ Guardian™ vent is a spring loaded reclosing pressure relief device/valve for use as a 407/412 cargo tank’s primary pressure relief system. The pressure relief valve is designed, tested and marked in accordance with 49CFR §178.345-10, 49CFR §178.347-4 and 49CFR §178.348-4. Features Compact, optimized flow design Safety Stop Screw to help prevent accidental unthreading of housing Seal tabs on shroud for security measures Simple in-place maintenance Specifications Size: 4 in. Connection: NPS Material: 316 Stainless steel Seal Material: PTFE Temperature Range: -40°F – 400°F (-40°C – 204°C) Flow: 379,461 SCFH @ 40 PSIG