🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS ISO 10631:2021 – TC

BS ISO 10631:2021 – TC

$186.33

Tracked Changes. Industrial valves. Metallic butterfly valves

Published By Publication Date Number of Pages
BSI 2021 58
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

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:

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

  2. NPS 1 ½; 2; 2 ½; 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:

  1. PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100;

  2. Class 25, 125; 150; 250; 300; 600.

NOTE 1

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

NOTE 2

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

PDF Catalog

PDF Pages PDF Title
32 undefined
36 Foreword
37 1 Scope
2 Normative references
39 3 Terms and definitions
40 4 Pressure/temperature ratings
41 5 Design
5.1 Wall thickness
5.2 Construction examples
42 5.3 Face-to-face dimensions
5.4 Face-to-face dimension tolerance
43 5.5 End connections
5.5.1 Double-flanged valves
5.5.2 Wafer-type valves
45 5.5.3 Butt-welded ends
5.6 Disc
46 5.7 Shaft
5.8 Operation
5.8.1 Direction of rotation
5.8.2 Actuating devices
47 5.9 Force or torque to be applied to manually actuated valves
5.9.1 Actuating force for handwheel or lever-actuated valves
48 5.9.2 Actuating torque for T-wrench-actuated valves
5.10 Dimensions and tolerances of body ends
5.10.1 General
49 5.10.2 Double-flanged ends – Dimensions of flanges
5.10.3 Body ends (wafer and flangeless valves) – Dimensions of flanges
5.10.4 Surface finish of flanged and wafer valve ends requiring gasket
5.10.5 Valves with welded ends
50 5.10.6 Disc to pipe clearance
51 5.11 Optional design features
52 6 Materials
6.1 Body
6.2 Disc
6.3 Shaft
53 6.4 Seat
7 Suitability of use
7.1 Allowable leakage rate
7.2 Flow velocity
8 Marking
54 9 Testing
10 Inspection and preparation for dispatch
11 Example of data sheet
55 Annex A (informative) Example of valve data sheet
57 Bibliography

Related products

BS ISO 10631:2021 - TC
$186.33