Watts 0383740 Valve Els PW 17895 reducing pressure drop across the

reducing pressure drop across the valve body

and 78C7701

or proven pilot configurations

this Rotalock service valve kit features a 1-3/4"-12 thread size

Watts 0383740 Valve Els PW 17895 reducing pressure drop across theThe Watts 0383740 (Series 740) is a high capacity iron body boiler pressure relief valve designed specifically for large scale hot water industrial and commercial heating systems. This ASME Section IV certified valve features a 1. 5 inch NPT female inlet and a 2 inch NPT female expanded outlet to facilitate rapid pressure discharge, effectively preventing catastrophic system failure due to thermal runaway. With a factory set relief pressure of 40 PSI