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GB/T 39493-2020Safety and control devices for gas burners and burning appliances Special requirements Pressure regulating devices (English PDF)

燃气燃烧器和燃烧器具用安全和控制装置特殊要求压力调节装置

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

October 1, 2021

Scope

GB/T 39493-2020 is the English-translated version of 燃气燃烧器和燃烧器具用安全和控制装置特殊要求压力调节装置.

GB/T 39493-2020 is the Chinese standard "Safety and control devices for gas burners and burning appliances Special requirements Pressure regulating devices".

Its scope clause reads: This standard specifies the classification and classification of burners and pressure regulating devices for burning appliances that use urban gas specified in GB/T 13611.

Group, structure and materials, requirements, test methods, inspection rules, signs, installation and operation instructions, packaging, transportation and storage.

This standard applies to the nominal size not greater than DN250 and the maximum inlet pressure not greater than 500kPa, which is used for gas water heaters and gas heating The following pressure regulating devices for gas burning appliances or burning equipment such as water heaters, gas stoves, gas burners/machines, gas heaters, gas steam boxes, gas boilers. ---Self-operated pressure regulating device; ---Auxiliary energy can be used, and the auxiliary energy is only used to change the outlet pressure setting instead of the pressure regulating device of positive pressure, zero pressure and negative pressure in the control mode.

This standard does not apply to. --- Pressure regulating devices installed outdoors and exposed to the environment; ---Gas/air ratio adjustment device/system. Its clauses include terms and definitions.

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Document preview — GB/T 39493-2020

National Standard of the People's Republic of China

Classification: P 45

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and grouping
4.1 Voltage regulator classification
4.2 Voltage regulator group
5 Structure and materials
5.1 General requirements
5.2 Structure
5.3 Material
5.4 Connection
6 Requirements
6.1 General requirements
6.2 Component requirements
6.3 Performance requirements
7 Test method
7.1 Test conditions
7.2 Test sequence
7.3 Component test
7.4 Performance test
8 Inspection rules
8.1 Factory inspection
8.2 Type inspection
9 Signs, installation and operating instructions
9.1 Sign
9.2 Installation and operating instructions
9.3 Warning notice
10 Packaging, transportation and storage
Appendix A (informative appendix) The structural changes of this standard compared with ISO 23551-2.2018
Appendix B (informative appendix) Technical differences between this standard and ISO 23551-2.2018 and their reasons
Appendix C (informative appendix) Correspondence table 18 for clauses supporting the basic requirements of GB 16914-2
Appendix D (informative appendix) Application of voltage regulator
Appendix E (informative appendix) Examples of typical voltage regulators and their parts
Appendix F (Normative Appendix) Regulator Function Requirements and Test Methods

1 Scope

This standard specifies the classification and classification of burners and pressure regulating devices for burning appliances that use urban gas specified in GB/T 13611.

Group, structure and materials, requirements, test methods, inspection rules, signs, installation and operation instructions, packaging, transportation and storage.

This standard applies to the nominal size not greater than DN250 and the maximum inlet pressure not greater than 500kPa, which is used for gas water heaters and gas heating

The following pressure regulating devices for gas burning appliances or burning equipment such as water heaters, gas stoves, gas burners/machines, gas heaters, gas steam boxes, gas boilers.

---Self-operated pressure regulating device;

---Auxiliary energy can be used, and the auxiliary energy is only used to change the outlet pressure setting instead of the pressure regulating device of positive pressure, zero pressure and negative pressure in the control mode.

This standard does not apply to.

--- Pressure regulating devices installed outdoors and exposed to the environment;

---Gas/air ratio adjustment device/system.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.

For undated references, the latest version (including all amendments) applies to this document.

GB/T 2423.10 Environmental Test Part 2.Test Method Test Fc. Vibration (Sine)

GB 2828.1 Sampling Inspection Procedures by Attributes Part 1.Batch Inspection Sampling Plan Retrieved by Acceptance Quality Limit (AQL)

GB 3836.4 Explosive atmosphere Part 4.Equipment protected by intrinsically safe "i"

GB/T 13611 Classification and basic characteristics of urban gas

GB/T 30597-2014 General requirements for safety and control devices for gas burners and burning appliances

3 Terms and definitions

The following terms and definitions defined in GB/T 30597 apply to this document.

3.1 Pressure regulator

Regulator

No matter where the inlet pressure and/or flow rate changes within a given range, the outlet pressure remains stable within a given range.

Note. See Appendix D for its application, and Appendix E for examples.

3.2 Adjustable voltage regulator

A pressure regulator that can change the set value of its outlet pressure.

GB/T 38603 | GB/T 39434 | GB/T 39485 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 51 pages — is available in the English PDF.

Referenced standards

Normative references

GB 2828.1

Cited by

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