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Always verify the part number on your existing switch—often labeled as M9371VO-DS-0015 or 64-0063-A-00—to confirm compatibility before installation
Technicians should always use a draft gauge or manometer to calibrate the balance weights for precise over-fire draft conditions
preventing ghost flows and over-pumping
Key Technical Benefits High-Torque Motor Strategy: Optimized for reliable starts even under unequalized pressure conditions
Belimo B264 Valve 326070-701 Always verify the part numberThe Belimo B264 is a 2 1 2" 2 way characterized control valve engineered for precise flow regulation in demanding hydronic systems. This HVAC control valve features a 150 Cv rating and a patented Tefzel characterized disc, which ensures an equal percentage flow characteristic. This design eliminates the control loop hunting typically seen in standard ball valves, providing stability comparable to globe valves. Constructed with a nickel plated forged
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