We offer black malleable iron female cone seat unions in sizes 1/8" (6mm) - 4" (100mm) NB, this includes bronze/iron (railroad) unions, bronze/bronze (navy) unions as well as iron/iron unions. Our cast malleable iron pipe fittings have been manufactured to BS EN 10242 by Jinan Meide, BSI Kitemarked and come with female BSPT taper threaded ends to ISO 7-1.
Our malleable iron unions are all PN25 (25 bar) pressure rated at up to 120°C, the full operating temperature range is -20°C - 200°C. Often paired with BS EN 10255 steel tube in sprinkler systems, oil & diesel lines, natural gas installations and more.