Semi-Internal “Pop-Action” Pressure Relief Valves for ASME Containers
Info
Designed for use as a primary relief valve on ASME containers such
as 250, 500 and 1,000 gallon tanks. Underwriters’ Laboratories lists
containers systems on which these types of valves are mounted
outside the hood without additional protection, if mounted near the
hood and fitted with a protective cap.
| Part Number |
Start To Discharge Setting PSIG |
A Container Connection M. NPT |
B Overall Height (Approx.) |
C Height Above Coupling (Approx.) |
D Wrench Hex Section |
Flow Capacity SCFM/Air | Suitable for Tanks w/Surface Area Up To:* |
Protective Cap (Included) |
|
| UL (At 120% of Set Pressure) |
ASME (At 120% of Set Pressure) |
||||||||
| 7583G | 250 | ¾” | 8 3/16" | 1 7/16" | 1¾” | 1980 | 1806 | 80 Sq. Ft. | 7583-40X |
| 8684G | 1" | 9 3/8” | 1 9/16" | 1 7/8” | 2620 | 2565 | 113 Sq. Ft. | 8684-40 | |
| 8685G | 1¼” | 11 1/16" | 1 11/16" | 2 3/8” | 4385 | 4035 | 212 Sq. Ft. | 7585-40X | |
* Per NFPA Pamphlet #58, Appendix D. Area shown is for UL or ASME flow rating—whichever is larger.