Cla-Val Relief Valves

Cla-Val Relief Valves

Items: 18 of 8, per page



    The 3/4" Cla-Val Model 55L is a UL Listed and FM approved direct acting, spring loaded, diaphragm type pressure relief valve which can be installed in any position and is designed to open and close within very close pressure limits. 

    The adjustable pressure range is 20 to 200 PSI and typical installations are use as a fire pump casing/circulation relief valve or they may be installed downstream of a pressure reducing valve.

    By removing and relocating the 3/4" plug in the valve body the new design permits installation in either an angle or straight orientation.


    Typically ships in 1-2 days.

    • $457.00


    The 3/4" Cla-Val Model 55L-60 is a UL Listed, FM approved direct acting, spring loaded, diaphragm type pressure relief valve which can be installed in any position and is designed to open and close within very close pressure limits. 

    The adjustable pressure range is 100 to 300 PSI and typical installations are use as a fire pump casing/circulation relief valve or they may be installed downstream of a pressure reducing valve.

    By removing and relocating the 3/4" plug in the valve body the new design permits installation in either an angle or straight orientation.


    Typically ships in 1-2 days.

    • $599.00
  • Cla-Val 2050B-4KG1 Fire Pump Angle Relief Valve UL/FM
    • Free


    U.L. Listed /U.L.C. Listed

    Factory Mutual Approved


    The Cla-Val Model 2050B-4KG1 Globe/ 2050B-4KG1 Fire Pump Angle Pressure Relief Valve is designed 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. 


    eFirePump.com stocks the Cla-Val Model 50B-4KG1 flanged angle pattern UL/FM fire pump relief valves and ships to the continental US for FREE typically within 1-2 business days to any commercial address.  If the address being delivered to is residential, we reserve the right to collect the additional cost for the residential delivery.

    Optional globe pattern and grooved valves available. Contact efirepump.com for price and availability. 


    Pressure Ratings Class 150# Flanged

    250 PSI Maximum Inlet Pressure

    20-200 PSI Adjustable Set Relief Pressure Range


    Pressure Rating Class 300# Flanged

    300 PSI Maximum Inlet Pressure 

    100-300 PSI Adjustable Set Relief Pressure Range

    • $2142.00

    The Cla-Val fire protection rubber repair kit includes a replacement diaphragm, disc, and spacer washers fir the Cla-Val 2050B-4KG1 angle and the 50B-4KG1 globe pattern UL/FM relief valves. A pilot valve repair kit is also available.


    This Kit Includes

    • (1) Diaphragm
    • (1) Disc 
    • (2) Spacer Washers


    Pilot Kit can be included.

    Pilot Kit Includes

    • (1) Stem Assembly
    • (1) Diaphragm 
    • (2) O-Rings



    • $218.00

    The Cla-Val fire protection pilot kit includes a replacement diaphragm, stem assembly, and O-Rings for the Cla-Val 2050B-4KG1 angle and the 50B-4KG1 globe pattern UL/FM relief valves. A fire protection rubber repair kit is also available.


    Pilot Kit Includes

    • (1) Stem Assembly
    • (1) Diaphragm 
    • (2) O-Rings



    • $180.00

    Fire pump discharge closed waste cones are manufactured to meet NFPA 20 requirements for use with UL/FM relief valves. 

    These waste cones are constructed of fabricated steel with 150# RF ANSI B.16.5 flanged connections rated to 175 PSI WP with two sight glasses for visual confirmation of water flow.

    Waste cones are sized based on NFPA 20 minimum relief valve discharge sizing. Please contact us for custom sizes or grooved connection options.

    • $382.00


    The 3/4" Cla-Val Model CRL-18 direct acting, spring loaded, diaphragm type pressure relief valve which can be installed in any position and is designed to open and close within very close pressure limits. The adjustable pressure range is 250-600 PSI and they are used as a fire pump casing/circulation relief valve for high pressure applications.

    Note:  This valve is not UL/FM listed or approved


    Typically ships in 1-2 days.

    • $2070.00

    100-300 PSI

    The 1" Cla-Val Model 55L-60 is an UL Listed direct acting, spring loaded, diaphragm type pressure relief valve which can be installed in any position and is designed to open and close within very close pressure limits. 

    The adjustable pressure range is available as 100 to 300 PSI and typical installations are use as a fire pump casing/circulation relief valve or they may be installed downstream of a pressure reducing valve.

    By removing and relocating the 1" plug in the valve body the new design permits installation in either an angle or straight orientation.


    Typically ships in 1-2 days.

    • $1024.00