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GB/T 34611-2017: Rigid polyurethane spray polyethylene winding prefabricated directly buried insulating pipes
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 34611-2017 | English | 359 |
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Rigid polyurethane spray polyethylene winding prefabricated directly buried insulating pipes
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GB/T 34611-2017
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Basic data | Standard ID | GB/T 34611-2017 (GB/T34611-2017) | | Description (Translated English) | Rigid polyurethane spray polyethylene winding prefabricated directly buried insulating pipes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P46 | | Classification of International Standard | 91.140.60 | | Word Count Estimation | 18,166 | | Date of Issue | 2017-10-14 | | Date of Implementation | 2018-09-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 34611-2017: Rigid polyurethane spray polyethylene winding prefabricated directly buried insulating pipes
---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.
Rigid polyurethane spray polyethylene winding prefabricated directly buried insulating pipes
ICS 91.140.60
P46
National Standards of People's Republic of China
Rigid Polyurethane Spraying Polyethylene Wrap Precast
Buried pipe insulation
2017-10-14 Published
2018-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 product structure 2
5 General provisions 2
6 Requirements 2
7 Test Method 7
8 Inspection rules 9
9 signs, transport and storage 11
Appendix A (Normative) Outer sheath thermal return rate test method 12
Appendix B (Normative) Outer sheath shrinkage test method 13
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.
This standard by the National Urban Heating Standardization Technical Committee (SAC/TC455) centralized.
This standard was drafted unit. North China Municipal Engineering Design and Research Institute Co., Ltd., Beijing Construction Engineering Quality Fourth Testing Institute, the day
Tianjin Pipeline Engineering Group Co., Ltd. insulation pipe plant, Tangshan Xingbang Pipeline Engineering Equipment Co., Ltd., Harbin Longgstenergy limited
Company, Hebei Haotian Energy Investment Group Co., Ltd., Tianjin Yu-Gang Insulation Building Materials Co., Ltd., Tianjin World Dragon Pipe Co., Ltd.,
Liaoning Hongxiang Steel Pipe Co., Ltd. Tianjin Tianjin can Pipe Co., Ltd., Dalian Kehua Thermal Pipe Co., Ltd., Shanghai Kehua heat pipe there
Limited, TEDA Thermal Insulation Materials Co., Ltd., Yantai Shunda Polyurethane Co., Ltd., Wanhua Chemical Group Co., Ltd.
Company, Henan Sanjie Thermoelectric Technology Co., Ltd., BASF Polyurethane (Tianjin) Co., Ltd., Covestro Polymers (China) Co., Ltd.,
Beijing Haote Ductile Pipe Equipment Co., Ltd., Beijing Gas Thermal Engineering Design Institute Co., Ltd., Tianhua Chemical Machinery and Automation Research and Design
Co., Ltd., Deshida (Tianjin) Pipeline Equipment Co., Ltd., Jiangfeng Pipeline Group Co., Ltd., Tianjin Qianfeng anti-corrosion insulation engineering limited
Company, Tianjin Xu Di polyurethane insulation preservative Equipment Co., Ltd..
The main drafters of this standard. Liao Rongping, Wang Huai, Jiang Jianzhi, Zhao Zhinan, Bai Dongjun, Zhou Yue from, Li Zhi, Qiu Huawei, Hu Chunfeng, Wang Zhiqiang,
Wang Zhongsheng, Lai Zhencheng, Zheng Zhongsheng, Yan Bihang, Ding Jian, Zhang Feng, Yu Guixia, Yang Qiu, Chen Lei, Qu Guran, Li Zhonggui, Xin Bo, Gao Jie, Liu Wei Wei,
Wang Xianmu, Jia Lihua, Sun Lei, Jia Hongqing, Li Nan, Zhang Yan will, Liu Yunjiang, Zhang Di.
Rigid Polyurethane Spraying Polyethylene Wrap Precast
Buried pipe insulation
1 Scope
This standard specifies the use of polyurethane spray technology and polyethylene winding process of rigid polyurethane spray polyethylene prefabricated precast buried
Insulation pipe (referred to as Spraying pipe insulation) terms and definitions, product structure, general requirements, requirements, test methods, inspection rules, signs, transport
Lose and store
This standard applies to the transmission medium temperature (long-term operating temperature) is not higher than 120 ℃, accidental peak temperature not higher than 140 ℃ hard poly
Manufacture and Inspection of Urethane Sprayed Polyethylene Wrap Prefabricated Buried Insulation Pipe.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 3091 low pressure fluid delivery welded steel pipe
Thermoplastics pipes - Determination of longitudinal shrinkage
GB/T 8163 seamless steel pipe for conveying fluid
Visual inspection of surface cleanliness of steel surfaces before application of paints - Part 1. Uncoated
Of the steel surface and the full removal of the original coating after the steel surface corrosion level and treatment level
GB/T 9711 oil and gas pipelines for industrial piping systems
GB/T 18475-2001 Thermoplastics pressure pipe and fittings materials grading and nomenclature The overall use (design) coefficient
Test method for technical index of prefabricated buried insulation pipe for urban heat supply GB/T
GB/T 29047 HDPE sheathing rigid polyurethane foam prefabricated buried insulation pipe and fittings
Technical specification for monitoring system of direct leakage in hot water pipeline for urban heating
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Polyurethane sprayed polyurethanespraying
The use of polyurethane spraying equipment will be evenly mixed polyurethane raw material to the steel pipe surface coating to form a polyurethane insulation layer of the process
method.
3.2
Polyethylene winding polyethylenewinding
The use of extrusion equipment will be continuous melting of polyethylene sheet wrapped around the outer surface of the polyurethane insulation to form a continuous dense polyethylene outer protection
Layers of the process.
3.3
Outer sheath outcasing
A layer of material made of polyethylene to protect the insulation and working steel pipes from water, moisture and mechanical damage.
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