Belimo B311B Valve Els PW 17895 always verify the condition of

always verify the condition of your existing motor shaft and set screw during replacement

This makes it fully compatible with modern R-410A refrigerant as well as HFC

For technicians seeking a drop-in replacement

ensuring compatibility with heavy-duty AAON electrical circuits

Belimo B311B Valve Els PW 17895 always verify the condition ofThe Belimo B311B is a 1 2 inch NPT 3 way characterized control valve engineered for precision in hydronic systems. With a flow coefficient of 1. 9 Cv, this valve features an A port equal percentage flow characteristic and a modified B port for constant common port flow, ensuring stable heat transfer even during part load conditions. Constructed with a nickel plated forged brass body and a chrome plated brass ball, it is rated for chilled or hot water