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Outdoor fire hydrant

Outdoor fire hydrant


GB 4452-2011


Issuing department: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration Release date: December 30, 2011 Implementation date: June 1, 2012

Foreword

Chapters 5, 7, and 8 of this standard are mandatory, and the rest are recommended.
This standard was drafted in accordance with the rules given in GB / T 1.1-2009.
This standard replaces GB 4452-1996 "General technical requirements for outdoor fire hydrants" and GB 4453-1984 "Fire hydrant connector". Compared with GB 4452-1996, in addition to editorial changes, the main technical changes are as follows:
-Added terminology for hydrants (see Chapter 3 of this edition);
-Added structural requirements for hydrants (see 5.1 in this edition);
——Added foam hydrant (see 5.2.5 in this edition);
-The performance of the waste water discharge device has been modified (see 5.9 in this edition; 4.8 in 1996 edition);
——Added anti-collision ground fire hydrant (see 5.11 in this edition);
——Added pressure regulating fire hydrant (see 5.12 in this edition);
——Added pressure reducing and fire extinguishing hydrant (see 5.13 in this edition);
-Added folding fire hydrant (see 5.14 in this edition);
-The inspection rules have been modified (see Chapter 7 of this edition; Chapter 6 of the 1996 edition);
——Integrated GB 4453 requirements for hydrant connectors (see Appendix A of this edition);
— Added requirements for hydrant wrenches (see Appendix B to this edition).
This standard was proposed by the Ministry of Public Security of the People's Republic of China.
This standard is under the jurisdiction of the National Fire Safety Standardization Technical Committee of the Fire Equipment Fittings Sub-Committee (SAC / TC 113 / SC 5).
This standard was drafted: Shanghai Fire Research Institute, Ministry of Public Security
The main drafters of this standard: Xu Yaoliang Yang Xiaohua Cao Jiasheng Ling Xinliang Chen Gang Anbing
The previous versions of the standards replaced by this standard are:
——GB 4452.1-1984, GB 4452.2-1984, GB 4452.3-1984, GB 4452-1996;
——GB 4453-1984.