It is designed strictly for closed-loop hydronic heating

command relay

Durable Disc-Style Design: Built as a 36T series limit switch to withstand high-cycle thermal stress in heating vestibules

By drawing air through factory-drilled air inlet holes and directing it into the detector's sensing chamber

Common Questions Does this valve include the flange

Sensus 143-IRV-1 1/4 Regulator Els PW 17895 It is designed strictly forThe Sensus 143 80 2 Internal Relief Valve (IRV) Regulator is a specialized solution for residential and light commercial natural gas applications requiring precise pressure control. This model features a 1 1 4" NPT pipe size and a high performance 3 8" orifice, engineered to handle significant flow capacities while maintaining a stable outlet pressure. Equipped with a Green Spring, the unit is calibrated for an adjustable outlet range of 6 to 14