ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings Classes 150 and 300
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ASME B16.42 Document Information:
Title
Ductile Iron Pipe Flanges and Flanged Fittings Classes 150 and 300
ASME International
Publication Date:
Jan 1, 1998
Scope:
General
This Standard covers minimum requirements for Class 150 and 300 cast ductile iron pipe flanges and flanged fittings. The requirements covered are as follows:
(a) pressure-temperature ratings
(b) sizes and method of designating openings
(c) marking
(d) materials
(e) dimensions and tolerances
(f) bolts, nuts, and gaskets
(8) tests
Quality Systems
Requirements relating to the product manufacturers' Quality System Programs are described in Annex B.
References
Referenced Standards. Standards and specifications adopted by reference in this Standard are shown in Annex C, which is part of this Standard. It is not considered practical to identify the specific edition of each standard and specification in the individual references. Instead, the specific edition reference is identified in Annex C.
Codes and Regulations. A flange or flanged fitting used under the jurisdiction of the ASME Boiler and Pressure Vessel Code, the ASME Code for Pressure Piping, or a governmental regulation is subject to any limitation of that code or regulation. This includes any maximum temperature limitation, any rule governing the use of a material at low temperature, or provisions for operation at a pressure exceeding the pressure-temperature ratings in this Standard.
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