The Betts’ Guardian^TM NPS swivel vent is a spring loaded reclosing pressure relief device/valve for use as a 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.

• Compact Optimized Flow Design
• 316 Stainless Steel construction
• Teflon seals and wear components
• Safety Stop Screw to help prevent accidental un-threading 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
• 3″ and 4″ NPS Swivel Connection

Seal Kit part number: SK-RVPT*

*Mounting gasket not included in seal kit

Spanner wrench part number: 75825EY

Dis-assembly wrench number : 75819ZC

For additional information on Betts products and Proposition 65 list please see: https://www.bettsind.com/proposition-65/