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replacing these with authentic KMC hardware mitigates the risk of catastrophic linkage failure or "hunting" in the control loop
high-side pressure bleeding into the low-side
Avoid applying grease directly to the O-rings before they are seated in the U-cups to prevent displacement
This 3/4" x 3/4" direct ignition valve is purpose-built for use with hot surface or direct spark ignition (HSI/DSI) configurations and is the factory-authorized direct replacement for S1-025-35303-000
Belimo B253 Ball Valve 328140-751 replacing these with authentic KMCThe Belimo B253 is a high performance 2 way characterized control valve designed for precision modulation in large scale HVAC systems. Featuring a 2 inch NPT female pipe thread connection and a generous 120 Cv flow coefficient, this unit is engineered for hot or chilled water applications, supporting up to a 60% glycol solution. The nickel plated forged brass body housing a 304 stainless steel ball and stem ensures long term resistance to corrosion
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