JSA JIS B 2301 Screwed type malleable cast iron pipe fittings
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Japanese Standards Association
Screwed type malleable cast iron pipe fittings
N JIS B 2301
Annotation
This Standard specifies screwed type malleable cast iron pipe fittings 3) (hereafter referred to as "fittings") used for ordinary piping 2) for water 1), oil, steam, air, gas, etc.
NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.
ISO 49: 1994 Malleable cast iron fittings threaded to ISO 7-1 (MOD)
In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/ lEC Guide 21-1.
Note 1) It refers to general service water, water for fire-fighting, water for industrial use, cold and hot water for air-conditioning, cooling water, etc. except drinking water.
2) It refers to piping mainly using carbon steel pipes for ordinary piping except that for high-pressure, for conduits and for other specific purposes.
3) It refers to those whose surface conditions are unmachined, galvanized, internally resin-coated and externally resin-covered
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