... ) Standard: ASME, ANSI, API, JIS, JPI, General Description1,Carbon steel, stainless steel and alloy flanges, are manufactured as per the standards of ... Flanges are the connectors used in process piping to connect pipe to tees, elbows, valves, pumps and whatever other equipment ... may be necessary.3,Types: Flat Face Flanges, Slip On, Welding Neck, Blind, ...