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JB/T 8527-2015Metallic Sealing Butterfly Valve (English PDF)

金属密封蝶阀

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

October 10, 2015

Implementation date

March 1, 2016

Scope

JB/T 8527-2015 is the English-translated version of 金属密封蝶阀.

JB/T 8527-2015 is the Chinese standard "Metallic Sealing Butterfly Valve". Its scope clause reads: This standard specifies the terms and definitions, structural type, model and parameter, technical requirements, test, inspection rules, marking, packaging, protection and storage of metallic sealing butterfly valve.

This standard is applicable to metallic sealing butterfly valve (hereinafter referred to as butterfly valve), of flange connection, wafer connection and welded connection, with nominal pressure of PN2.5~PN160 and Class 150~Class 900, nominal dimension of DN50~DN6000, and temperature of -29°C~538°C. Its clauses include terms and definitions.

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Document preview — JB/T 8527-2015

National Standard of the People's Republic of China

Replacing: JB/T 8527-1997

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Structural Type, Model and Parameter
5 Technical Requirements
6 Test
7 Inspection Rules
8 Marking
9 Packaging, Protection and Storage
Bibliography
Figure 1 Typical Structural Types of Butterfly Valve
Figure 2 Typical Eccentric Types of Butterfly Valve
Figure 3 Double-flange Connection
Figure 4 No-flange Wafer Connection
Figure 5 Single Flange or Ear Handle Wafer Connection
Figure 6 U-section Wafer Connection
Figure 7 Welded Connection
Table 1 Flow Rate
Table 2 Position Tolerance of Flange Bolt Hole
Table 3 Materials for Main Parts
Table 4 End-of-manufacturing Inspection and Type Inspection of Butterfly Valve
Table 5 Sampling Quantity

1 Scope

This standard specifies the terms and definitions, structural type, model and parameter, technical requirements, test, inspection rules, marking, packaging, protection and storage of metallic sealing butterfly valve.

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB 150 (All parts) Pressure Vessels

GB/T 152.4 Fasteners - Counterbores for Hexagon Bolts and Nuts

GB/T 228.1 Metallic Materials - Tensile Testing - Part 1 : Method of Test at Room Temperature

GB/T 1047 Pipework Components - Definition and Selection of DN (Nominal Size)

GB/T 1048 Pipework Components - Definition and Selection of PN GB/T 9113 Integral Steel Pipe Flanges

GB/T 12220 Industrial Valves - Marking

GB/T 12221 Metal Valves - Face to Face, End to End, Center to Face and Center to End Dimensions

GB/T 12223 Part-turn Valve Actuator Attachments

GB/T 12224 General Requirements for Industrial Steel Valves

GB/T 12238 Flanged and Wafer Resilient Seal Butterfly Valves

GB/T 13927-2008 Industrial Valves - Pressure Testing

GB/T 17219 Safety Evaluation Criteria for Drinking Water Distribution Equipment and Protective Material

GB/T 17241.6 Integral Cast Iron Flanges

GB/T 17241.7 Specifications for Cast Iron Pipe Flanges

GB/T 30832 Valves - Test Method of Flow Coefficient and Flow Resistance Coefficient

JB/T 106 Valves Marking and Paint

JB/T 308-2004 Valves Model Designation Method

JB/T 5300 General Purpose Industrial Valves Material - Selection Guideline

JB/T 7928 Industrial Valve - Delivery Specification

NB/T 47013.2 Nondestructive Testing of Pressure Equipment - Part 2: Radiographic Testing

NB/T 47013.3 Nondestructive Testing of Pressure Equipment - Part 3: Ultrasonic Testing

NB/T 47013.4 Nondestructive Testing of Pressure Equipment - Part 4: Magnetic Particle Testing

NB/T 47013.5 Nondestructive Testing of Pressure Equipment - Part 5: Penetrant Testing

NB/T 47014 Welding Procedure Qualification for Pressure Equipment

3 Terms and Definitions

For the purposes of this document, the following term and definition apply.

3.1 metallic sealing butterfly valve

butterfly valve sealing pair, namely the butterfly valve with sealing face of valve body (also referred to as valve seat) and butterfly plate of metallic-to-metallic pair and that with valve body and butterfly plate of metallic and nonmetallic multilayer composite-to-metallic pair […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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Cited by

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Editions of JB/T 8527

Edition	Title	Revision	Status
JB/T 8527-2015	Metallic Sealing Butterfly Valve	current edition	Current
JB/T 8527-1997	Metallic Sealing Butterfly Valve	previous edition	Superseded

This page sells the current edition, JB/T 8527-2015. Earlier editions are listed for reference only.

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