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استاندارد ASME B16.9
اتصالات جوشی لب به لب
(Butt Welding Fittings)
نسخه 2012
Factory Made Wrought Butt Welding Fitings
Version 2012
SCOPE
1.1 General
This Standard covers overall dimensions, tolerances, ratings, testing, andmarkings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200).
1.2 Special Fittings
Fittings may be made to special dimensions, sizes, shapes, and tolerances by agreement between themanufacturer and the purchaser.
1.3 Fabricated Fittings
Fabricated laterals and other fittings employing circumferential or intersection welds are considered pipe
fabrication and are notwithin the scope of this Standard.
Fabricated lap joint stub ends are exempt from the above restrictions, provided they meet all the requirements of the applicable ASTM material specification
listed in section 5.
استاندارد ASME B16.9 در خصوص اتصالات جوشی لب به لب (Butt Welding Fittings) - نسخه 2012
