GB 8181-2025 English PDF

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GB 8181-2025: Fire nozzles
Status: Valid

GB 8181: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 8181-2025	439	Add to Cart	4 days	Fire nozzles	Valid
GB 8181-2005	289	Add to Cart	3 days	Fire nozzles	Valid
GB 8181-1987	279	Add to Cart	3 days	Performance requirements and tests methods for fire water branch	Obsolete

Similar standards

GB/T 51033   GB/T 50082   

Basic data

Standard ID: GB 8181-2025 (GB8181-2025)
Description (Translated English): Fire nozzles
Sector / Industry: National Standard
Classification of Chinese Standard: C84
Classification of International Standard: 13.220.20
Word Count Estimation: 22,241
Date of Issue: 2025-08-01
Date of Implementation: 2026-08-01
Older Standard (superseded by this standard): GB 8181-2005
Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China

GB 8181-2025: Fire nozzles

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB8181-2025
ICS 13.220.20 CCSC84 National Standard of the People's Republic of China Replaces GB 8181-2005 Fire hose Released on August 1, 2025 Implementation on August 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Classification and Model 2 4.1 Classification 2 4.2 Model 3 5 Performance Requirements 4 5.1 Basic Parameters 4 5.2 Requirements for mist and blooming water flows 6 5.3 Operation and structural requirements 6 5.4 Quality 7 5.5 Reciprocating operation requirements 7 5.6 Materials 7 5.7 Seals 7 5.8 Thread 7 5.9 Surface Quality 7 5.10 Sealing performance 7 5.11 Water pressure resistance 7 5.12 Operating ambient temperature 7 5.13 Drop resistance 7 5.14 Salt spray corrosion resistance 8 5.15 Hot air aging resistance 8 5.16 Ultraviolet radiation resistance 8 5.17 Resistance to hot water aging 8 5.18 Interface Performance 8 5.19 Flushing function 8 6 Test methods 8 6.1 Basic parameter test 8 6.2 Mist and blooming water flow test 9 6.3 Operation and structural test 9 6.4 Quality Test 10 6.5 Reciprocating operation test 10 6.6 Material testing 10 6.7 Seal test 10 6.8 Thread test 11 6.9 Surface quality inspection 11 6.10 Sealing performance test 11 6.11 Water pressure resistance test 11 6.12 Operating ambient temperature test 11 6.13 Drop test 11 6.14 Salt spray corrosion resistance test 12 6.15 Hot air aging test 12 6.16 Ultraviolet radiation resistance test 12 6.17 Hot water aging test 13 6.18 Interface performance test 13 6.19 Flushing function test 13 6.20 Sign Check 13 6.21 Instruction Manual Check 13 7 Inspection Rules 13 7.1 Type inspection 13 7.2 Factory Inspection 13 8 Labels, instructions and packaging 14 8.1 Sign 14 8.2 User Manual 15 8.3 Packaging 15 Appendix A (Normative) Water Gun Test Procedure and Sample Quantity 16 A.1 Test serial number and test method chapter number 16 A.2 Note 16 A.3 Test procedure 16 Preface 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. This document replaces GB 8181-2005 "Fire-fighting Nozzles". Compared with GB 8181-2005, except for structural adjustments and editorial changes, the main changes are The technical changes are as follows. --- Changed the terms and definitions (see Chapter 3, Chapter 3 of the.2005 edition); --- Changed the classification of low-pressure DC spray guns with adjustable spray angle (see 4.1.3, 4.1.3 of the.2005 edition); --- Changed the basic parameter requirements for fire hoses (see 5.1, 5.1 of the.2005 edition); --- Changed the operating torque requirements and test methods (see 5.3.7, 6.3.7, 5.3.6, 6.2 of the.2005 edition); --- Added quality requirements and test methods for DC spray guns (see 5.4, 6.4); --- Added reciprocating operation requirements and test methods (see 5.5, 6.5); --- Changed the drop resistance requirements and test methods (see 5.13, 6.13, 5.11, 6.8 of the.2005 edition); --- Added hot air aging resistance performance requirements and test methods (see 5.15, 6.15); --- Added UV radiation resistance requirements and test methods (see 5.16, 6.16); --- Added requirements and test methods for resistance to hot water aging (see 5.17, 6.17); --- Added flushing function requirements and test methods (see 5.19, 6.19); --- Changed the measurement method of spray angle and bloom angle (see 6.2, 6.1.4 of the.2005 edition); --- Changed the inspection rules (see Chapter 7, Chapter 7 of the.2005 edition). 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 is proposed and coordinated by the National Fire and Rescue Administration. The previous versions of this document and the documents it replaces are as follows. --- First issued as GB 8181-1987 in 1987, first revised in.2005; ---This is the second revision. Fire hose

1 Scope

This document defines the terms and definitions of fire hoses, specifies the classification and model, performance requirements, inspection rules and markings, and instruction manuals. and packaging requirements, and describes the test methods. This document applies to the design, manufacture and maintenance of fire hoses with a working pressure of 0.20MPa~4.0MPa and a flow rate of no more than 16L/s. acceptance. This document does not apply to pulse air pressure spray guns.

2 Normative references

The contents of the following documents constitute the 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 197 General thread tolerances GB/T 1173 Cast aluminum alloys GB/T 1176 Cast copper and copper alloys GB/T 3452.1-2005 O-rings for hydraulic and pneumatic applications - Part 1.Dimensional series and tolerances GB 12514 (all parts) Fire protection interface GB/T 15115 Die-cast aluminum alloy GB/T 15116 Die-cast copper alloys and copper alloy die-castings GB/T 16422.2-2022 Plastics laboratory light source exposure test method Part 2.Xenon arc lamp JB/T 7444 Air Thermal Aging Test Chamber XF7 Fire Fighting Gloves

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Fire hose firenozzle A jet hose gun that uses water as the fire extinguishing medium and is carried and operated by one or more persons. Note. Water guns, hereinafter referred to as water guns, usually consist of an interface, a gun body, a switch and a nozzle or a device that can form different forms of jets. 3.2 solid stream Water jet with a substantial core section. 3.3 spray stream The average particle size of the water droplets is not greater than 1 mm, the jet edge angle is greater than 0°, and the water jet does not have a substantial core section. ......

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