As a standard for HVACR professionals

ensuring the venting system maintains proper static pressure before allowing ignition

the LF24 maintains a compact footprint while offering high reliability for both new construction and retrofit projects where performance and damper actuator compatibility are non-negotiable

ensuring precise physical dimensions and electrical characteristics for York and residential furnace units

Belimo B349 Valve Els PW 17895 As a standard for HVACRThe Belimo B349 is a high performance 2 inch NPT 3 way ball valve designed for precise mixing or diverting in commercial HVAC and hydronic systems. This 46 Cv valve features an A port equal percentage flow characteristic and a B port modified for constant common port flow, ensuring stable control and preventing pressure surges during modulation. Engineered with a nickel plated forged brass body and stainless steel ball and stem, the B349 provides