Threaded pipe fittings in malleable cast iron and cast copper alloy|Fluids, Design, Temperature, Marking, Approval testing, Test pressure, Bend couplings, Parallel threads, Nipples (pipes), Castings, Metal coatings, Cast-iron, Copper alloys, Pipe junctions, Performance, Size, Screwed fittings, Pipe crosses, Gases, Unions, Threaded components, Pipe plugs, Pipe connections, Pipe fittings, Pipe caps, Zinc, Elbows (pipes), Taper threads, Sockets (threaded), Bushes (mechanical components), Designations, Pipe couplings, Threads, Dimensions, Ratings, Hexagonal shape, Dimensional tolerances, Pipe tees, Malleable cast-iron, Leak tests