
| Package Type | N/A Each | 
| Units Per Package | N/A 1 | 
| Size | N/A 4 " | 
| Vendor Item # | N/A RVP4NT-25 | 
| Weight | N/A 15.5 lb | 
| Mounting | N/A NPSF Female Thread | 
| Pressure | N/A 25 psi | 
| Manufacturer | N/A Betts | 
| Betts # | N/A RVP4NT-25 | 
| Girard # | N/A DOT407LT | 
| Elastomer | N/A PTFE | 
| Features | N/A The Betts’ GuardianTM NPSF threaded valve is a spring loaded reclosing pressure relief device/valve for use as a 407 or 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. 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 inch NPSF threaded Connection | 
