Watts 0383308 Valve THPU32HP7Y this 300 psi model typically

this 300 psi model typically comes complete with an integrated strainer to protect the internal valve components from welding slag and pipe scale

it should not be directly immersed in liquids without a WEL11A-601R immersion well

sluggish valve reaction

making it an ideal choice for localized control of water

Watts 0383308 Valve THPU32HP7Y this 300 psi model typicallyThe Watts 0383308 is a high capacity ASME Section IV pressure relief valve designed specifically for hot water space heating boilers. Engineered as part of the Watts Series 740, this 1 1 4 inch NPT valve is factory set at 45 PSI and delivers a massive discharge capacity of 2,830,000 BTU hr. Its iron body construction features expanded outlet drain connections (1 1 2 inch) to facilitate rapid pressure reduction during thermal expansion or runaway