Cla-Val 55L-60 Fire Pump Casing Relief Valve
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Cla-Val 55L-60 Fire Pump Casing Relief Valve
Cla-Val 55L-60 direct-acting, spring-loaded diaphragm relief valve in 1/2, 3/4 and 1 inch sizes with NPT threads, used as a fire pump casing relief valve. UL listed and FM approved in 1/2 and 3/4 inch; UL listed in 1 inch. Not suited to discharging a pump's full rated capacity; Cla-Val points to the 50B-4KG1 for that.
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Key specifications
| Function | Direct-acting pressure relief valve; fire pump casing relief |
| Sizes | 1/2, 3/4, 1 in |
| Patterns | Globe or angle (bottom plug moved to inlet) |
| End connections | NPT threaded; 1/8 in NPT gauge port |
| Body and cover | Cast bronze UNS C87850 (standard); optional ASTM A743-CF-16F stainless steel, monel or super duplex |
| Trim | 303 stainless steel or monel |
UL ListedFM Approved
Download datasheet (PDF)