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GB/T 45595-2025Centrifugal refrigerant compressors (English PDF)

离心式制冷剂压缩机

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 25, 2025

Implementation date

November 1, 2025

Scope

GB/T 45595-2025 is the English-translated version of 离心式制冷剂压缩机.

GB/T 45595-2025 is the Chinese national standard covering the compressor at the heart of a large chiller — the types and basic parameters, the safety, performance and reliability requirements, the nominal and part load operating conditions, the capacity test run by gas and liquid flow meters or by condenser and discharge pipe calorimetry, and the placement of the pressure and temperature tappings and the straight pipe lengths without which the flow measurement is not reproducible. First edition, under the China Machinery Industry Federation. In force from 1 November 2025. Issued on 25 April 2025, it has been in force since 1 November 2025.

Document preview — GB/T 45595-2025

National Standard of the People's Republic of China

ICS: 27.200
Classification: J 73

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Types and basic parameters4
4.1 Type4
4.2 Basic parameters4
5 Technical requirements5
5.1 General requirements5
5.2 Safety requirements5
5.3 Performance requirements6
5.4 Reliability requirements7
6 Test methods8
6.1 General requirements for testing8
6.2 Safety requirements test9
6.3 Performance requirements test10
6.4 Reliability requirements test11
7 Inspection Rules13
7.1 Factory Inspection13
7.2 Sampling inspection13
7.3 Type inspection13
8 Marking, packaging, transportation and storage14
8.1 Sign14
8.2 Packaging14
8.3 Transportation and storage15

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Machinery Industry Federation.

This document is under the jurisdiction of the National Technical Committee for Standardization of Refrigeration and Air-conditioning Equipment (SAC/TC238).

This document was drafted by: Chongqing Midea General Refrigeration Equipment Co., Ltd., Hefei General Electromechanical Products Testing Institute Co., Ltd., Qingdao Haier Air Conditioning Electronics Co., Ltd., Gree Electric Appliances Co., Ltd. of Zhuhai, Danfoss (China) Investment Co., Ltd., Trane Air Conditioning Systems (China) Co., Ltd.

Ltd., Qingdao Hisense Hitachi Air Conditioning Systems Co., Ltd., McQuay Air Conditioning and Refrigeration (Suzhou) Co., Ltd., Hefei General Machinery Research Institute Co., Ltd.

Co., Ltd., Johnson Controls Hitachi Wanbao Air Conditioning (Guangzhou) Co., Ltd., Bolun Environmental Technology Co., Ltd., Nanjing Tianjia Environmental Technology Co., Ltd.

Company, Qingdao Arctic Ocean Cold and Warm Energy Technology Co., Ltd., Dunham-Bush (China) Industrial Co., Ltd., Shanghai Hanzhong Precision Machinery Co., Ltd., Shanghai Jiao Tong University, Guangzhou Metro Design and Research Institute Co., Ltd., and SINOMACH General Machinery Technology Co., Ltd.

The main drafters of this document are: Luo Mingwen, Li Zhenshan, Yue Zheng, Guo Defang, Zhang Zhiping, Xun Qunde, Zhang Weijia, Zhang Wenqiang, Jiang Fuqiang, Tian Xudong, Zhang Zhenjun, Xu Shuwu, Fan Shize, Wang Jinjie, Bai Zhengbin, Lin Xinyi, Hu Bin, Luo Yanping, Li Ziye, Lu Lei, Ding Hui, Song Youqiang, and Zhang Huan.

Centrifugal refrigerant compressor

1 Scope

This document specifies the types and basic parameters, technical requirements, test methods of centrifugal refrigerant compressors and centrifugal refrigerant compressor units.

methods, inspection rules, as well as marking, packaging, transportation and storage.

This document applies to centrifugal refrigerant compressors for refrigeration or heat pumps driven by electric motors (hereinafter referred to as "compressors") and centrifugal refrigeration compressor units [hereinafter referred to as "compressors (units)"], compressors driven by other prime movers (such as diesel engines, steam turbines and gas turbines) or other The compressor (group) for the purpose is used for reference.

2 Normative references

GB/T 191

GB/T 755-2019

GB/T 1236

GB/T 5773-2016

GB/T 6388

GB/T 9237

GB/T 9239.1-2006

GB/T 12668.3-2012

GB/T 12668.501

GB/T 13306

GB/T 18430.1-2024

GB/T 19410-2008

3 Terms and definitions

The terms and definitions defined in JB/T 7249 and the following apply to this document.

3.1 A compressor in which the refrigerant vapor flows radially through the impeller

The impeller works on the refrigerant vapor to increase its pressure and velocity, and then converts the kinetic energy into pressure in the diffuser.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 35 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 755-2019 · GB/T 1236 · GB/T 6388 · GB/T 9237 · GB/T 9239.1-2006 · GB/T 12668.3-2012 · GB/T 12668.501

Editions of GB/T 45595

Edition	Title	Revision	Status
GB/T 45595-2025	Centrifugal refrigerant compressors	current edition	Current

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