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GB/T 38109-2019 (GBT 38109-2019)

GB/T 38109-2019_English: PDF (GBT38109-2019)
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BASIC DATA
Standard ID GB/T 38109-2019 (GB/T38109-2019)
Description (Translated English) Application guidance forsafety accessories and instruments on pressure equipment
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J74
Classification of International Standard 13.240
Word Count Estimation 6,649
Date of Issue 2019-10-17
Date of Implementation 2020-05-01
Drafting Organization East China University of Science and Technology, Shanghai Gas Industry Association, State Market Supervision and Administration Bureau, National Special Pump and Valve Engineering Technology Research Center, China Special Equipment Inspection and Research Institute, Shenyang Special Equipment Inspection and Research Institute, Beijing Aerospace Petrochemical Technology and Equipment Engineering Co., Ltd., China Special Equipment Inspection Association, Shanghai Special Equipment Supervision and Inspection Technology Research Institute, Wuhai Special Equipment Inspection Institute, Shanghai Kaike Valve Manufacturing Co., Ltd., Tianzheng Valve Co., Ltd., Shenyang Xinguang Aerospace Safety System Co., Ltd., Chengdu Kaitian Electronics Co., Ltd. Company Yidu Chenghang Branch, Shanghai Huali Safety Equipment Co., Ltd., Dalian Science and Technology Safety Equipment Co., Ltd., Baoyi Group Co., Ltd., Shanghai Ruikong Valve Co., Ltd., China National Petroleum Corporation Daqing Petrochemical Company, Zhangjiagang Furui Valve has
Administrative Organization National Boiler and Pressure Vessel Standardization Technical Committee (SAC/TC 262)
Proposing organization National Boiler and Pressure Vessel Standardization Technical Committee (SAC/TC 262)
Issuing agency(ies) State Administration of Markets and China National Standardization Administration

GB/T 38109-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.240
J 74
Application Guidance for Safety Accessories
and Instruments on Pressure Equipment
ISSUED ON: OCTOBER 17, 2019
IMPLEMENTED ON: MAY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 5
4 General Requirements ... 5
5 Selection Principles ... 6
6 Setting Basic Requirements ... 7
Application Guidance for Safety Accessories
and Instruments on Pressure Equipment
1 Scope
This Standard specifies the basic requirements for selection principles and settings of
safety accessories and instrument for pressure equipment such as pressure vessels,
industrial pipelines, etc.
This Standard is applicable to the safety accessories and instruments such as pressure
relief devices, emergency shutoff devices, etc. for the pressure equipment like
pressure vessels, industrial pipelines, etc.
This Standard is not applicable to the following pressure equipment:
--- Boiler, gas cylinder, oxygen chamber, non-metallic pressure equipment;
--- Pressure equipment of military equipment and nuclear facilities;
--- Aerospace vehicles, railway locomotives, offshore installations, and pressure
equipment for ship and underground in mines.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
TSG 21 Supervision Regulation on Safety Technology for Stationary Pressure
Vessel
TSG D0001 Pressure Pipe Safety Technology Supervision Regulation for
Industrial Pressure Pipe
TSG R0005 Supervision Regulation on Safety Technology for Transportable
Pressure Vessel
instruments shall meet the requirements of relevant safety technical specifications.
4.3 The type test items specified in safety technical specifications and product
standards shall be conducted type test by the inspection agency approved by the
special equipment safety supervision and management department; and obtain the
type test report and certificate.
4.4 When leaving the factory, the safety accessories and instruments shall be provided
with quality certificate documents; and shall be identified or marked on the obvious
part of the products.
4.5 The pressure parts of safety accessories and instrument shall meet the
requirements for the use of the pressure equipment. The materials that may come into
contact with the fluid medium shall be considered for compatibility with the medium.
4.6 Safety accessories and instruments can be connected the pressure equipment by
thread, welding or flange. The joints shall be safe and reliable; and have good sealing
performance.
4.7 For the safety accessories and the instruments with electrical control components,
the protection level and explosion-proof requirements of electrical components shall
conform to the provisions of relevant standards.
4.8 The accuracy and range of the instruments shall meet the requirements for use;
and the instruments that need to be verified shall obtain the qualified and valid
verification certificate.
5 Selection Principles
5.1 The selection of safety accessories and instruments shall conform to the provisions
of safety technical specifications such as TSG21, TSG D0001, TSG R0005 and related
standards.
5.2 When selecting safety accessories and instruments, at least the following factors
shall be considered:
a) Type and working conditions for use of pressure equipment;
b) Type, toxicity and hazardous properties of the carrier medium;
c) Failure mode of the pressure equipment;
d) Failure mode of safety accessories and instruments.