Products Component Housing Material:Ductile cast iron conforming to ASTM A-536,Grade 65-45-12 Surface Finish:Standard:Epoxy powder coating Optional:Galvanized(Zinc Plated、HDG)Dip painted Surface color:Variable color for choice Rubber Gasket Standard:EPDM. Optional:Nitrile,Silicone,Fluoroelastomer,Neoprene The sealing mechanism of grooved couplings and mechanical outlets is basically the same,the main structure of the gasket has “C”shape,forming a triple seal function.

Products Presentation Three traditional methods to connect steel pipes,namely welding,flange connection and screw connection. CNG grooved piping system use the grooved couplings & branch outlet fittings as the key,supplemented by a variety of non-gasket pipe fittings.in order to meet the needs of customers,CNG also develop extended products such as grooved end valves,filters,etc.CNG will continue to improve and optimize so that the company’s product line can fulfill demands in civil construction,municipal and industrial fields. CNG groove piping system is an universal,economic,safe and practical piping system components,the installation process will not bring any pollution to the pipeline.