香港六合彩开奖 10631:2021

Published (Edition 3, 2021)

香港六合彩开奖 10631:2021

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Abstract

This document specifies the general requirements for design, materials (e.g. steel, cast iron, ductile iron, copper alloy), pressure/temperature ratings and testing for butterfly valves having metallic bodies for use in flanged or butt-welding piping systems.

This document applies to metallic butterfly valves used for all industrial applications.

Additional requirements given in the relevant application standards can apply to butterfly valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the oil and gas industry).

This document covers butterfly valves of the following nominal sizes, DN and NPS:

鈥斅犅犅� DN 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; (550); 600; (650); 700; 750; 800; 900; 1聽000; 1聽050; 1聽200; 1聽400; 1聽500; 1聽600; 1聽800; 2聽000; 2聽200; 2聽400.

鈥斅犅犅� NPS 1 陆; 2; 2 陆; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; (22); 24; (26); 28; 30; 32; 36; 40; 42; 48; 54; 56; 60; 64; 66; 72; 78; 80; 84; 88; 90; 96.

This document is applicable to butterfly valves of the following pressure designations, PN and Class:

鈥斅犅犅� PN聽2,5; PN聽6; PN聽10; PN聽16; PN聽25; PN聽40; PN聽63; PN聽100;

鈥斅犅犅� Class聽25, 125; 150; 250; 300; 600.

NOTE聽1聽聽聽 It is possible that the nominal sizes listed are not available for all pressure designations.

NOTE聽2聽聽聽 Nominal sizes listed in parenthesis are not common industry sizes, but are used in some application standards.

General information

Status
: Published

Publication date
: 2021-05

Stage
: International Standard published [60.60]
Edition
: 3

Number of pages
: 21
Technical Committee :
香港六合彩开奖/TC 153

ICS :
23.060.99
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