Reduced Mechanical Noise: Precision-balanced internal components minimize resonance through the ductwork or unit chassis

Field-proven and built for continuous duty

"pitted" contact pads

allowing for seamless integration into both positive and negative pressure systems

this Apollo/Conbraco water level gauge is a staple for hydronic and steam system contractors

Belimo F6125HDU Valve Assembly Refrigerant Reduced Mechanical Noise: Precision-balanced internalThe Belimo F6125HDU is a professional grade 5 inch 2 way butterfly valve designed for high capacity flow control in commercial hydronic systems. This ductile iron butterfly valve features a 304 stainless steel disc and an EPDM liner, ensuring bubble tight shut off and zero leakage up to a 50 PSI close off pressure. With a high flow coefficient (Cv 1022), it is optimized for chilled water, hot water, and up to 60% glycol solutions. The F6125HDU valve