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Featuring a robust brass body and a large 2 1/2" NPT connection
replacing the discontinued TST30009
The York S1-024-27688-001 Switch is a high-performance OEM replacement low pressure switch engineered for precision sensing in residential and commercial HVAC systems
High-pitched squealing often indicates failing ball bearings
Belimo B211 Valve 320720-756 Featuring a robust brass bodyThe Belimo B211 is a high performance 1 2 inch NPT 2 way characterized control valve designed for precision in HVAC hydronic systems. Featuring a 1. 9 Cv rating, this valve utilizes a specialized equal percentage flow characteristic, made possible by a built in Tefzel characterizing disc. This design compensates for the non linear heat transfer of coils, ensuring stable modulating control and preventing system hunting. The unit is constructed with a
US$ 99.00
US$ 82.00
US$ 159.00