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vapor-actuated thermometer that operates entirely without batteries or electrical input
This OEM replacement part is engineered specifically for Reznor UDAP and UDAS series gas-fired unit heaters
or excessive heat exposure near the draft inducer housing
Robertshaw infinites may have reversed L1 and L2 positions compared to some competitive models
Belimo B311B Valve Els PW 17895 vapor-actuated thermometer that operates entirelyThe 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
