Product standard

Specification：

O.D.：33.7—219.1 (mm)

Wall thickness：2.75—5.0 (mm)

Anticorrosive：1. hot galvanized 2. powder coating

End: Plain End, Rolled Grooved,Shouldered

Function: Fire and water supply system in building

The Fire protection piping holds tighter tolerances than ASTM A135,ASTM A795,ASTM A53, AS 1074 specification. (Wall tolerances are held to -5% instead of the -12 ½% per ASTM A135 and A53.)