The Robertshaw 41-402 Hot Surface Ignitor is a direct-replacement Norton 271W series silicon carbide igniter engineered for high-performance gas-fired equipment
ensure the secondary switching circuit does not exceed the 120 Vac limit specified for the RIBXGHTA contact rating
Engineered for professional HVAC mechanical contractor use
Industrial Calibration: Engineered for precision accuracy in residential and light commercial cast iron boiler configurations
Larger valves require different linkage hardware to handle increased stem travel and force
Belimo B220B Valve Els PW 17895 The Robertshaw 41-402 Hot SurfaceWhen you need precise flow control in hydronic systems, the Belimo B220B Valve is a solid choice. This 3 4" 2 way ball valve, a true Characterized Control Valve (CCV), is engineered for reliable performance in both chilled water and hot water applications, handling up to 60% glycol solutions. With a robust nickel plated forged brass body, chrome plated brass ball, and nickel plated brass stem, it's built to last. The Cv 14 rating and equal percentage