Zhejiang Matech Industry Company Limited

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Hangzhou Matech Steel Company Limited
Tel: +86-571-28350111
Fax: +86-571-86693517
Email: sales@matech-steel.com
Add: Floor 10, Xixi Vally E-Building, Xihu District, Hangzhou, Zhejiang province, China
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Flange Classification
Mar 28, 2018

1. According to chemical industry (HG) industry standard: integral flange (IF), threaded flange (Th), flat welded flange (PL), neck welded flange (WN), neck welded flange (SO), socket welding flange (SW), butt welded ring loose flange (PJ/SE), flat welded ring loose flange (PJ/RJ), lining flange cover (BL(S)), Flange cover (BL) [2].

2. According to the petrochemical (SH) industry standard: threaded flange (PT), welded flange (WN), flat welded flange (SO), socket welded flange (SW), loose flange (LJ) , flange cover (not table note).

3, according to the mechanical (JB) industry standards: integral flange, butt welding flange, plate type flat welding flange, butt welded ring type loose flange, flat welded ring plate loose loose flange, flange ring plate loose cover Flange, flange cover.

4, according to the national (GB) standard points: integral flange, threaded flange, butt welding flange, with neck flat welding flange, with neck socket welding flange, butt welded ring with loose collar flange, flat plate Welded flanges, butt-welded ring-type loose flanges, flat-welded ring-type loose flanges, flanging ring-type loose flanges, flange covers.

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  • Contact Us
    Hangzhou Matech Steel Company Limited
    Tel: +86-571-28350111
    Fax: +86-571-86693517
    Email: sales@matech-steel.com
    Add: Floor 10, Xixi Vally E-Building, Xihu District, Hangzhou, Zhejiang province, China
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