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subject: Pipe Fittings Uncommon Standards [print this page]

pipe fittings uncommon standards:pipe fittings uncommon standards:

The most common pipe fittings There are four main criteria:

GB12459-90 national standard seamless welded pipe fittings (Seamless)

GB/T13401-92 weld pipe fittings national standards (with seam),

American Standard ANSI B16.9 Butt-welding pipe fittings standard (with sewn or seamless)

ANSI B16.11 Socket and threaded pipe fittings standard (American Standard)

Sometimes also used the following criteria:

HG514-87 standard pipe fittings Ministry of Chemical Industry

SHJ408-90 in the petrochemical pipe fittings standard

JIS B2311, JIS B2312, JIS B2316, Japan, pipe fittings standard

And German DIN standards, etc..

by: sanzhuang

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