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Series 374A Watts Boiler Pressure Relief Valves are used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of an iron body construction with forged bronze inlet connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series Watts 374A resists corrosive water conditions, sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control. Standard Pressure Setting: 30psi (206.9 kPa).
(based on 9 reviews)
of respondents would recommend this to a friend.
Reviewed by 9 customers
Displaying reviews 1-9
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good price, fast shipping
from Valencia, Pa.
Comments about Watts 3/4" 374A Relief Valve (30 psi):
Easy to install, good quality
Bottom Line Yes, I would recommend this to a friend
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High quality relief valve
from Talent, OR
We install radiant heating systems, and anytime we need a pressure relief valve for system protection, it's a Watts
from Stamford CT
new as expected - would use again
Excellent Relief Valve
from New Mexico
I used the Pressure Relief Valve to replace one that was leaking on my boiler. It's built well, installed easily and works as advertised. Solved my problem.
I WOULD BUY THIS PRODUCT AGAIN AND AGAIN
from HONESDALE ,PA
GOOD QUALITY ,GREAT PRICE
By fix all Al
from Holly MI.
stopped the drip. works well.
Fast and Easy Replacement
from Salem, MA
I removed the defective (leaking) 11 year old pressure relief valve from my SlantFin Liberty II boiler. I installed the new Watts 374A Relief Valve in about 10 minutes. No leaks now. A fine repaclemt valve. Thank you Watts.
from Baltic, Ct
Well made product, installed easily to replace defective valve. Would use this brand for other products based this products performance.
No issues at all
from Kutztown, PA
Installed as expected and no issues in use.
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