GB/T 587-2008Marine bronze flanged stop valves (English PDF)

1 Scope

This standard specifies the flange connection dimensions according to GB/T 569, GB/T 2501 Marine bronze flanged shut-off valve (hereinafter referred to as the cut-off valve)

Classification and marking requirements, test methods, inspection rules, packaging and storage.

This standard applies to the media as fresh water, sea water, oil, fuel and temperature does not exceed 250 °C steam shut-off valve in the piping system design,

Manufacture and acceptance.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 569 Marine flange connection dimensions and sealing surface

GB/T 600 marine piping valves General technical requirements

GB/T 1176-1987 Cast Copper Alloys conditions (neq ISO 1338. 1977)

GB/T 1184-1996 shape and position tolerances without individual tolerance value (eqv ISO 2768-2. 1989)

GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance tolerance (eqv ISO 2768-1. 1989)

GB/T 1958 Geometrical Product Specifications (GPS) shape and position tolerance testing requirements

GB/T 2501 Marine flange connection dimensions and sealing surface (four into position)

Flag GB/T 3032 Ship pipeline accessories

GB/T 4423-2007 Copper and copper alloy rod drawing

GB/T 11698 Marine flange length of the structure connecting metal valves (GB/T 11698-2008, ISO 5752. 1982, Metal valvesforuseinflangedpipesystems-Face-to-faceandcenter-to-facedimensions, MOD)

CB/T 3927 Marine casting wall thickness of the valve member

3 Classification and Marking

Type 3.1

Shut-off valve type provides as follows.

A straight-through type --- Flanged globe valve size and sealing surface according to GB/T 569 provisions;

Type B --- flanged rectangular cut-off valve size and sealing surface according to GB/T 569 provisions;

AS type --- flange dimensions and sealing surface of the straight-through shut-off valve according to GB/T 2501 provisions;

Right Angle stop valve BS type --- flange dimensions and sealing surface according to GB/T 2501 regulations.