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Common Questions Is the SA159-17 compatible with both steam and hot water boilers
leading to overflow
Built-in USB port configuration facilitates rapid cloning of settings between units
Operating pressure ratings are substantial
Watts 0383308 Valve 30067439-890 Common Questions Is the SA159-17The 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
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