Profile: A&L Valve and Fitting, L.P. offers a wide variety of valve products to the industrial and petrochemical industries. We distribute high-quality steamco industrial valves that meet, or exceed, industry valve specifications. Steamcos are available in different styles and configurations. We specialize in boiler non-return valves. We supply surplus valves, refurbished valves, and new valves. We stock a complete line of boiler valves in both cast iron and carbon steel.