A.Y. MCDONALD MFG. COMPANY
.A.Y. MCDONALD MFG. COMPANY is the leading manufacturer of Plug and Ball style Gas Meter Shutoff Valves utilized in both residential and commercial applications up to 175 PSIG. A.Y. McDonald offers a variety of Integral Valve and Standard Configuration Meter Bars including single and multiple residential By-Pass Meter Bars and the newly developed Industrial By-Pass Bar. A full line of straight and off-set Meter Swivels, Meter Nuts, Meter Plugs and 3 Part Unions are also available. A.Y. McDonald recently expanded their natural gas suite of products with Risers, Service Head Adapters and Couplings via their purchase of Chicago Fittings.