this bronze-body valve is factory set at 60 PSI to prevent over-pressurization in high-output boilers

High-Efficiency Thermal Output: Delivers 10kW of heating power at 230V to meet demanding climate requirements

Durable Construction: Built to withstand constant thermal cycling in high-demand HVAC environments

leak-free design with no gaskets

Carrier KR12HY160 Pulley 320819-301 this bronze-body valve is factoryThe Carrier KR12HY160 Pulley is a high performance 2VP56 variable pitch sheave designed for precise HVAC blower speed adjustment and reliable power transmission. Engineered from durable cast iron, this double groove variable speed pulley supports a variety of belt sections including 3L, 4L, 5L, A, and B, making it a versatile component for industrial fan drives. With an outside diameter (OD) of 5. 35 inches and a finished bore, it provides the