Watts 0163746 Valve 323055-751 This kit serves as the

This kit serves as the direct replacement for P399AAC-1-200

Precision Balance: 3-blade design reduces bearing wear on the fan motor

minimizing downtime during system retrofits

maintaining system pressure integrity in demanding commercial environments

Watts 0163746 Valve 323055-751 This kit serves as theThe Watts 0163746 (Model 1 LL40XL Z2) is a high capacity temperature and pressure relief valve designed specifically for commercial hot water supply tanks and large boilers. Featuring a 1 inch NPT male inlet and 1 inch NPT female outlet, this bronze body valve is engineered for 500,000 BTU hr systems where safety and high discharge capacity are mandatory. The non mechanical seat to disc alignment ensures reliable operation at a pressure relief setting