Betts 4 in. Guardian Vacuum Breaker w/ PTFE Seals & NPS Swivel Connection

Description

The Betts’ GuardianTM vacuum breaker is a spring loaded reclosing vacuum relief valve for use on a cargo tank’s vacuum relief system. The vacuum breaker 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 Seal tabs on shroud and swivel nut for security measures. Simple in-place maintenance Vibration damping design Specifications Size: 4 in. Connection: Swivel NPS Material: 316 Stainless steel Seal Material: PTFE Set Vacuum: 1.5 PSIG 1 in. NPT and ¼ in. NPT mounting ports Temperature Range: -40°F – 400°F (-40°C – 204°C) Flow: 18,000 SCFH @ 3.0 PSIG