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GB/T 45821-2025Turbine compressors for ammonia and urea plant (English PDF)

化肥装置用透平压缩机

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 30, 2025

Implementation date

May 30, 2025

Scope

GB/T 45821-2025 is the English-translated version of 化肥装置用透平压缩机.

GB/T 45821-2025 is the Chinese standard "Turbine compressors for ammonia and urea plant". Its scope clause reads: This document specifies the technical requirements, test methods, inspection rules, packaging, transportation and storage of turbo compressors used in fertilizer plants.

This document applies to air compressors, raw gas compressors, synthesis gas compressors, ammonia compressors, and carbon dioxide compressors for fertilizer plants.

Manufacturing of turbo compressors (referred to as “compressors”) such as turbo compressors and nitrogen oxide compressors. This document does not apply to integrally geared centrifugal compressors.

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Document preview — GB/T 45821-2025

National Standard of the People's Republic of China

ICS: 23.120
Classification: J 72

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

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Abbreviations
5 Category
5.1 Fertilizer plant
5.2 Compressors for synthetic ammonia plants
5.3 Compressors for urea plants
5.4 Compressors for nitric acid plants
6 Technical Requirements
6.1 General requirements
6.2 Mechanical structure
6.3 Aerodynamic performance
6.4 Rotor dynamics
6.5 Materials
6.6 Painting
6.7 Auxiliary equipment
6.8 Automatic Control and Remote Monitoring
6.9 Mechanical properties evaluation
7 Test methods
7.1 General requirements
7.2 Aerodynamic performance calibration
7.3 Noise
8 Inspection Rules
8.1 General requirements
8.2 Factory Inspection
9 Packaging, transportation and storage
9.1 Packaging
9.2 Transportation
9.3 Storage

1 Scope

This document specifies the technical requirements, test methods, inspection rules, packaging, transportation and storage of turbo compressors used in fertilizer plants.

This document applies to air compressors, raw gas compressors, synthesis gas compressors, ammonia compressors, and carbon dioxide compressors for fertilizer plants.

Manufacturing of turbo compressors (referred to as “compressors”) such as turbo compressors and nitrogen oxide compressors.

This document does not apply to integrally geared centrifugal compressors.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 755 Ratings and performance of rotating electrical machines

GB/T 1174 Casting bearing alloys

GB/T 3141-1994 ISO viscosity classification for industrial liquid lubricants

GB/T 3767 Acoustics - Determination of sound power level and sound energy level of noise source by sound pressure method - Engineering method for approximate free field above reflecting surface

GB/T 3836 (all parts) Explosive atmospheres

GB/T 9239.1-2006 Mechanical vibration steady-state (rigid) rotor balancing quality requirements Part 1.Specifications and balance tolerances test

GB/T 18329.1 Sliding bearings Multilayer metal sliding bearings Part 1.Ultrasonic testing of bonded bearings with alloy thickness >= 0.5 mm

Nondestructive Testing

GB/T 18329.3 Sliding bearings Multilayer metal sliding bearings Part 3.Non-destructive penetrant testing

GB 18613 Energy efficiency limit values and energy efficiency grades for electric motors

GB/T 20801 (all parts) Pressure piping specification Industrial piping

GB/T 25630-2010 Turbine compressor performance test procedures

GB/T 28574 Special purpose steam turbines for petroleum, petrochemical and natural gas industries

GB 31571 Petrochemical Industry Pollutant Emission Standard

GB/T 37400.12 General technical requirements for heavy machinery Part 12.Painting

GB/T 42601.1 Petroleum, heavy chemical and natural gas industries lubrication, shaft sealing and control oil systems and auxiliary equipment Part 1.

General Requirements

HG/T 20615 Steel Pipe Flange (Class Series)

HG/T 20623 Large Diameter Steel Pipe Flange (Class Series)

JB/T 2977 Terminology of industrial ventilators, turbo blowers and compressors

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 47013.5 Nondestructive testing of pressure equipment Part 5.Penetrant testing

ISO 6368 Dry gas sealing systems for axial, centrifugal and rotary screw compressors and expanders in the petroleum, heavy chemical and natural gas industries

GB/T 13277.1 | GB/T 4976 | GB/T 33625 | GB/T 10893 | GB/T 45820 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 3836 · ISO 6368

Editions of GB/T 45821

Edition	Title	Revision	Status
GB/T 45821-2025	Turbine compressors for ammonia and urea plant	current edition	Current

This page sells the current edition, GB/T 45821-2025. Earlier editions are listed for reference only.

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