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www.ChineseStandard.net Database: 189760 (18 Oct 2025)

GB 3445-2018 English PDF

US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 3445-2018: Indoor fire hydrant
Status: Valid

GB 3445: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB 3445-2018	English	279	Add to Cart	3 days [Need to translate]	Indoor fire hydrant	Valid	GB 3445-2018
GB 3445-2005	English	519	Add to Cart	3 days [Need to translate]	Indoor fire hydrant [including MODIFICATION 1]	Obsolete	GB 3445-2005
GB 3445-1993	English	599	Add to Cart	4 days [Need to translate]	Indoor fire hydrant	Obsolete	GB 3445-1993

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Basic data

Standard ID	GB 3445-2018 (GB3445-2018)
Description (Translated English)	Indoor fire hydrant
Sector / Industry	National Standard
Classification of Chinese Standard	C84
Classification of International Standard	13.220.10
Word Count Estimation	14,181
Date of Issue	2018-09-17
Date of Implementation	2019-04-01
Older Standard (superseded by this standard)	GB 3445-2005
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB 3445-2018: Indoor fire hydrant

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Indoor fire hydrant) ICS 13.220.10 C84 National Standards of People's Republic of China Replace GB 3445-2005 Indoor fire hydrant Published on.2018-09-17 Implementation of.2019-04-01 State market supervision and administration China National Standardization Administration issued

Foreword

Chapters 5, 7, and 9.1.1 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 3445-2005 "Indoor Fire Hydrant". Major technical changes in addition to editorial changes compared to GB 3445-2005 as follows. --- Increased the definition of the reducer tee type indoor fire hydrant (see 3.6); ---Modified the requirements of tensile strength, decompression and pressure regulation performance of the mechanical properties of the valve stem (see 5.2.3, 5.13.2, 5.2.3 of.2005 edition, 5.14.2); --- Increased the requirements for the rotating parts of the rotating indoor fire hydrant and the material of the hand wheel (see 5.2.6, 5.2.7). This standard is proposed and managed by the Ministry of Public Security of the People's Republic of China. This standard is drafted by. Tianjin Fire Research Institute of the Ministry of Public Security. Participated in the drafting of this standard. Tianguang Fire Protection Co., Ltd., Fujian Laoshan Fire Protection Co., Ltd. The main drafters of this standard. Wang Shuyan, Zhou Shinan, Zhang Limei, Li Yanan, Chen Qiyuan, Li Guozhen, Chen Xiuyu, Huang Qidou. The previous versions of the standards replaced by this standard are. ---GB 3445-1982, GB 3445-1993, GB 3445-2005. Indoor fire hydrant

1 Scope

This standard specifies the terms and definitions, classification, model and basic parameters, technical requirements, test methods, inspection rules, etc. of indoor fire hydrants. Instructions, signs, packaging, transportation and storage. This standard applies to indoor fire hydrants.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 191 packaging storage and transportation icon GB/T 228.1 tensile testing of metallic materials - Part 1 GB/T 1176 cast copper and copper alloy GB/T 1804-2000 General tolerances and tolerances for linear and angular dimensions without tolerances GB/T 4423 copper and copper alloy rods GB/T 9439 gray iron castings GB/T 9969 General guidelines for the use of industrial products GB 12514 (all parts) fire interface JB/T 7273.3 hand wheel

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Rotary indoor fire hydrant rotatableindoorfirehydrant The plug can be rotated 360 degrees horizontally relative to the base connected to the inlet pipe. 3.2 Decompression type indoor fire hydrant pressure-reducingindoorfirehydrant The indoor fire hydrant that reduces the pressure at the outlet of the plug is realized by a throttling device disposed in the plug or the inlet and outlet of the plug body. 3.3 Rotary decompression type indoor fire hydrant rotatablepressure-reducingindoorfirehydrant An indoor fire hydrant with both rotating and decompressing functions. 3.4 Decompression regulator type indoor fire hydrant pressurereducingandstabilizingindoorfirehydrant An automatic throttle device is arranged in the plug body or the inlet and outlet of the plug body, and depending on the pressure of the medium itself, the throttle area of the throttle device is changed, The indoor hydrant whose inlet pressure is reduced to a certain required pressure and the outlet pressure is automatically maintained. 3.5 Rotary decompression regulator type indoor fire hydrant rotatablepressurereducingandstabilizingindoorfirehydrant An indoor fire hydrant with both rotating and decompressing voltage regulation functions.

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Question 5: Should I purchase the latest version GB 3445-2018?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 3445-2018 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.