GB 9237-2001
Replaced
GB/T 45775-2025
Active
National standards
GB/T 45775-2025 Refrigerating systems and heat pumps—Valves—Requirements,testing and marking
GB/T 45775-2025 Refrigerating systems and heat pumps—Valves—Requirements,testing and marking
Price:
$ 135.00
Basic Information
Standard Code:
GB/T 45775-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Refrigeration equipment
ICS Name:
Refrigeration technology
Publish Date:
2025-06-30
Implement Date:
2026-01-01
Pages:
92 pages
Scope
This document specifies the safety requirements, specific functional requirements, and marking for valves and other components with similar valve bodies (hereinafter collectively referred to as "valves") used in refrigeration and heat pump systems, including requirements for valves with extension pipes, procedures for designing pressure-bearing components of valves, standards for material selection, and calculation methods for valve body strength attenuation due to low temperatures in safety assessments.
This document applies to valves with a maximum operating temperature not exceeding 200 °C and a maximum operating pressure not exceeding 16 MPa, as well as the design of valve bodies and valve covers for pressure relief devices in pressure vessels (including explosion-proof devices).
This document does not apply to the design or application of any other aspects of pressure relief devices.
Development Information
Referenced Standards
GB/T 229-1994 Metallic materials—Charpy notch impact test
GB/T 229-2007 Metallic materials—Charpy pendulum impact test method
GB/T 229-2020 Metallic materials—Charpy pendulum impact test method
GB/T 1690-1992 Rubber, vulcanized-Determination of the effect of liquids
GB/T 1690-2006 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids
GB/T 1690-2010 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids
GB 4706.32-1996 Safety of household and similar electrical appliances—Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
GB 4706.32-2004 Safety of household and similar electrical appliances—Particular requirements for heat pumps, air-conditioner and dehumidifier
GB 4706.32-2012 Household and similar electrical appliances—Safety—Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
GB/T 4706.32-2024 Safety of household and similar electrical appliances—Part 32:Particular requirements for electrical heat pumps,air-conditioners and dehumidifiers
GB/T 7778-2001 Number designation and safety classification of refrigerants
GB/T 7778-2008 Number designation and safety classification of refrigerants
GB/T 7778-2017 Number designation and safety classification of refrigerants
GB 9237-2001 Mechanical refrigerating systems used for cooling and heating-Safety requirements
GB/T 9237-2017 Refrigerating systems and heat pumps—Safety and environmental requirements
GB/T 11547-1989 Plastics—Determination of the effects of liquid chemicals, including water
GB/T 11547-2008 Plastic—Methods of test for the determination of the effects of immersion in liquid chemicals
ISO/TR 15608
Adopt standards
ISO 21922:2021
Related Standards
GB/T 10870-2001
Replaced
GB/T 10870-2001 The methods of performance test for positive displacement & centrifugal water-chilling units and heat pump
GB/T 7778-2001
Replaced
GB/T 7778-2001 Number designation and safety classification of refrigerants
GB 18361-2001
Active
GB 18361-2001 Safety requirements of lithium bromide absorption water chiller (heater)
GB/T 18362-2001
Replaced
GB/T 18362-2001 Direct-fired lithium bromide absorption water chiller (heater)
GB/T 10079-2001
Replaced