GB 6245-2025Fire pumps (English PDF)

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. This document replaces GB 6245-2006 "Fire Pumps". Compared with GB 6245-2006, in addition to structural adjustments and editorial changes, the main The technical changes are as follows:

a) Part of the "Terms and Definitions" has been modified (see Chapter 3, Chapter 3 of the.2006 edition);

b) The model designation rules have been changed (see 4.2,

4.2 of the.2006 edition);

c) Increased filter performance for large-flow vehicle fire pumps (see 5.1.5);

d) The water priming time for mobile fire pumps has been changed (see 5.7.1,

5.7.2 of the.2006 edition);

e) Deleted the relevant provisions on deep well and submersible fire pumps (see

6.4.3 of the.2006 edition);

f) Added requirements for impeller balance performance (see 5.1.10, 6.1.8, 7.1.10);

g) Added the requirements for bearing spacing of deep well fire pump units (see 6.1.9);

h) The main technical parameter requirements for stationary fire pump units have been changed (see 6.4,

6.4 of the.2006 edition);

1 Scope

GB 6245-2025 is the Chinese national standard on fire pumps, in the field of environment and health protection, safety. It carries no /T suffix, which in the Chinese system means compliance is mandatory: a product or a practice within its scope has to meet it to be lawfully made, sold or carried out in China. It was issued on 1 August 2025 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 August 2026. Classification: ICS 13.220.20, CCS C84. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This document defines the terms and definitions of fire pumps, gives the classification and model, stipulates the performance requirements, inspection rules and marking requirements, and describes the The corresponding test methods are described. This document applies to the design, manufacture and maintenance of fire pumps and fire pump units that deliver water, foam mixture or foam liquid as the main fire extinguishing agent. acceptance.

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 3181-2008 Paint film color standard

GB/T 3216-2016 Acceptance test for hydraulic performance of rotary dynamic pumps Level 1, Level 2 and Level 3

GB/T 4025 Basic and safety rules for marking and identification of human-machine interfaces - Coding rules for indicators and operating devices

GB/T 4026 Basic and safety rules for marking of human-machine interfaces - Marking of equipment terminals, conductor ends and conductors

GB/T 4208 Degrees of protection provided by enclosures (IP code)

GB/T 7251.1 Low-voltage switchgear and controlgear assemblies Part

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 fire pump firepump Installed on fire trucks, fixed fire extinguishing systems or other fire fighting facilities, used to transport liquid fire extinguishing agents such as water, foam mixture or foam liquid