521506A | 3wThermo Mixing Vlv 3/4"Press | Caleffi Collection_ Control Boards Its 5/8-11 thread size provides

Its 5/8-11 thread size provides compatibility with a wide range of bolts and fasteners

Clean the mating surfaces on the burner and heat exchanger

and other professionals requiring a reliable clamping solution

Featuring a length of 330mm

this allows up to 30% energy savings

521506A | 3wThermo Mixing Vlv 3/4"Press | Caleffi Collection_ Control Boards Its 5/8-11 thread size provides**Caleffi 521506A 3wThermo Mixing Valve** The Caleffi 521506A 3wThermo Mixing Valve is designed for use in hydronic heating and cooling systems. It features a 3 way thermostatic mixing valve that modulates the flow of hot and cold water to maintain a constant outlet temperature. This ensures optimal comfort and energy efficiency. The valve is constructed from durable brass for longevity and reliability. It has a maximum working pressure of 20 bar and