Malleable iron single compression coupling

Malleable Iron Single Coupling - to BS F-Thread Code：Single Coupling Female Thread Size: 1/2"-2" Material: BS EN 1562,EN-GJMB-350-10,KTH350-10 Dimension: BS EN 10242 Thread: ISO 7-1,BS 21,BSPT Pressure Rating: PN16/PN25 Surface Treatment:Hot-dip Galvanized, Electro Galvanized, Black Application: Fire Protection,Waterworks,HVAC,Plumbing,GAS,Irrigation,or other piping systems