Cla-Val 2050B-4KG1 Fire Pump Angle Relief Valve UL/FM
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Cla-Val 2050B-4KG1 Fire Pump Angle Relief Valve UL/FM


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

Factory Mutual Approved


The Cla-Val Model 50B-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

  • $1490.00
Qty:  
FREE SHIPPING

Cla-Val 2050B-4KG1 Angle Relief Valve UL/FM




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

Factory Mutual Approved


The Cla-Val Model 50B-4KG1 Globe/ 2050B-4KG1 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.



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

Lead Times
97% of our orders ship within 1 business day. We stock most items in our warehouse and can ship most orders placed before 1pm CST on the same day. Priority is given to orders that select Next Day Air shipping. Items that are made to order will make note of their lead time in the item description.

Calibrated gauges may add 2 days to ship time, please contact us or select Next Day Air service if needed immediately.

Shipping Locations
eFirePump.com is located in the central United States, we can ship quickly to anywhere in North America. At this time, eFirePump.com ships merchandise to locations within the United States and U.S. territories, including Alaska, Hawaii, Puerto Rico, Guam, and the US Virgin Islands. Additionally, eFirePump.com ships merchandise to Canada and Mexico.Other international locations may not be able to purchase through this website and should contact us for purchasing inquiries.

Shipping & Delivery
The risk of loss and title for all merchandise ordered on this Web site pass to you when the merchandise is delivered to the shipping carrier.

Puerto Rico Customers
Puerto Rico orders must choose US Postal Service for shipping. Orders placed with UPS may be shipped via Postal Service at our discretion.

We accept American Express, MasterCard, Visa, and PayPal payments.

We will honor reasonable requests to return merchandise based on manufacturing defects only, upon which we will provide a refund or replacement per instance. eFirePump.com is not responsible for the cost of shipping on returned merchandise. In some instances a restock fee may be charged. We will always do our best to reach an amicable resolution.

    • SKU
      V-Cla 2050B-4KG1
  • Sizes
    3" 150# X 150#, 3" 300# X 150#, 4" 150# X 150#, 4" 300# X 150#, 6" 150# X 150#, 6" 300# X 150#, 8" 150# X 150#, 8" 300# X 150#
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