Watts 0278030 Valve THPU32HP7Y it utilizes a Class H

it utilizes a Class H coil rated for 120Vac

bi-directional 3/4" ODF refrigerant isolation valve engineered for critical applications in commercial HVACR systems

vertical-mount pneumatic thermostats

Operating on a 24VAC coil

Watts 0278030 Valve THPU32HP7Y it utilizes a Class HThe Watts 0278030, also identified as the Series 174A 2 30, is a heavy duty ASME Section IV certified pressure relief valve designed for high capacity protection of hot water heating and domestic supply boilers. This 2 inch NPT bronze boiler relief valve is factory set at 30 PSI with a massive steam relief capacity of 3,815,000 BTU hr. Built with a non mechanical seat to disc alignment, the internal stainless steel spring and working parts are