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and R76716900
The 'R' indicates a revised or updated version of the original 667210 part
A zero reading typically indicates a blocked sensing port or a failed internal Bourdon tube
bringing system performance back to original manufacturer specifications without the need for field modifications
this single-phase PSC motor is engineered to withstand the high thermal demands of outdoor condensing environments
Watts 0383308 Valve 30067439-890 and R76716900The 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
US$ 504.50
US$ 494.50
US$ 814.50