Pressure Relief Valves
The Cla-Val Model 50B-4KG-1 Globe / 2050B-4KG Angle Pressure Relief Valve is designed specifically to automatically relieve excess pressure in fire protection pumping systems. Pilot controlled, it maintains constant system pressure at the pump discharge within very close limits as demands change.
Sizes: Globe: 2" - 12" flanged / Angle: 2" - 12" flanged
End Details: 150 and 300 ANSI B16.42
Pressure Ratings: class - 175 psi Max. / class - 300 psi Max / Water, to 180°F Max.
Materials:
- Main Valve Body & Cover (Ductile Iron ASTM A-536, Naval Bronze ASTM B61, Other Material Available)
- Standard Main Valve Trim (Bronze Seat, Teflon Coated; Stainless Steel Stem, Delrin Sleeved)
- Standard Pilot Control System (Cast Bronze with Stainless Steel trim)
Adjustment Range: Available in the following relief pressure ranges: 20-200 psi (150 Class) 100-300 psi (300 Class)
Pressure Reducing Valves
Cla-Val 90G-21 (globe) and 90A-21 (angle) Pressure Reducing Valves are indispensable in any fire protection system. Our diaphragm actuated design is proven highly reliable and easy to maintain. We offer both a globe or angle pattern with a full range of adjustments. These valves are also available in a variety of material options. Epoxy coating is strongly recommended for all fire system valves (excluding bronze valves). The 90G-21 and 90A-21 can be supplied with optional internal and external epoxy coating of the main valve wetted surfaces.
Size:
- 175 lb. Class 1 1/2” - 8” (Globe)
2” - 6” (Angle)
- 300 lb. Class 1 1/2” - 6” (Globe)
2” - 6” (Angle)
End Details:150 ANSI B16.42 (Ductile Iron) (Bronze)
Pressure Differential: 10 PSI Min.
Pressure Adjustment Range:
- 175 lb. Class 30-165 psi
- 300 lb. Class 30-165 psi
Temperature Range: Water to 180°F Max.
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