Method to Distinguish Gas Film and Hard Film Rubber Joint
The distinction between rubber joint gas film and hard film is very simple, just check the internal finish, mode of the sphere wall is very smooth, with the sphere wall hard die mould seam.
Nowadays, hard film is already out of date. All rubber joints produced by Gongyi Xinli are of gas film type.
Rubber joint series products:
Synthetic rubber joint, flexible single ball rubber joint, double ball flexible rubber joint, elbow rubber joint, threaded union rubber joint, fan coil rubber joint, etc.
Engineering standards:
Rubber joint with the flange according to "National general water supply and drainage standard atlas".
Design and selection:
1) take some of the other standard or non-standard flange should be ordered another agreement, indicate the standard or provide drawings and related data, manufacturers can be custom-made production.
2) the flange bolt number, bolt hole diameter, central circle diameter of bolt hole by GB9119.
Gongyi Xinli Pipeline Equipment Co.,Ltd
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