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GB/T 21359-2008: Stainless steel tube threaded couplings for the food and water industry
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21359-2008 | English | 779 |
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Stainless steel tube threaded couplings for the food and water industry
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GB/T 21359-2008
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Basic data | Standard ID | GB/T 21359-2008 (GB/T21359-2008) | | Description (Translated English) | Stainless steel tube threaded couplings for the food and water industry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J15 | | Classification of International Standard | 23.040.60 | | Word Count Estimation | 35,362 | | Date of Issue | 2008-01-14 | | Date of Implementation | 2008-05-01 | | Quoted Standard | GB/T 196; GB/T 1031; GB/T 2100; GB/T 4239 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.1 (Total No.114) | | 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 | | Summary | This standard specifies the food industry with a welded stainless steel threaded joints, limit union nipple stainless steel fittings and industrial water use limit union stainless steel screw, propelled stainless steel type and size of the nipple, technical requirements, test methods, inspection rules, marks and logos, packaging and storage and so on. This standards set forth in the food industry with a stainless steel threaded fittings for nominal size not greater than DN100, nominal pressure of not more than PN25 environment, supply industrial stainless steel threaded fittings for nominal size not greater than DN100, nominal pressure of not more than PN16 environment, without special needs, in general, the joint operating temperature of not more than 110��C. This standard applies to the design of thin-walled stainless steel pipe with threaded joints, manufacture and acceptance. | GB/T 21359-2008: Stainless steel tube threaded couplings for the food and water industry---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.
Stainless steel tube threaded couplings for the food and water industry
ICS 23.040.60
J15
National Standards of People's Republic of China
Food and water for industrial use stainless steel threaded joint
Posted 2008-01-14
2008-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard combination of domestic production and use and connectivity features, choose to use the ISO 2853.1993 "food industrial stainless steel thread
Joint "size welded threaded joint, tolerance and material requirements, but also at home and abroad manufacturing technology and existing products, increase the limit Articulated
And push-size stainless steel threaded joint, tolerances, materials and threaded joint assembly, testing, inspection, sanitation and packaging requirements.
Performance requirements and test methods for stainless steel threaded joints specified in this standard, and JWWAG116.2001 "with a stainless steel water pipes
Basically the same content in drinking water installations fittings and pipe couplings, "which stipulated." 1995 and DVGW W534 "steel pipe joints.
The Standard Annexes A and B are normative appendix Appendix C are informative appendices.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee pipe accessories.
This standard is drafted by. Mechanical Science Research Institute, East Wing Building Materials (Foshan) Co., Ltd., Sichuan people's livelihood of the industry limited liability company.
Participated in the drafting of this Standard. China Architecture Design Institute, Jiangsu Jiang Technology Co., Ltd, Ya Chang of Industry (Shenzhen) Co., Ltd.
The main drafters of this standard. Ding Li, Li Junying, Liao force, Zhao Li, Tan Donghua, Chen Weidong, WEI Min situation.
Food and water for industrial use stainless steel threaded joint
1 Scope
This standard specifies the food industry with a welded stainless steel threaded joint, limit union stainless steel threaded joints and water for industrial use limit
Articulated stainless steel nipple, stainless steel push-nipple types and dimensions, technical requirements, test methods, inspection rules, marking and
Logo, packaging and storage, etc.
The standards set forth in the food industry stainless steel threaded fittings are available in nominal size no greater than DN100, nominal pressure of not more than
PN25 environment; water supply for industrial use stainless steel threaded fittings are available in nominal size no greater than DN100, nominal pressure of not more than PN16
Environment; without special needs, in general, the joint operating temperature of not more than 110 ℃.
This standard applies to thin-walled stainless steel pipe with a threaded joint design, manufacture and acceptance.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 196 common thread basic size (GB/T 196-2003, ISO 724.1993, ISO generalpurposemetric
screwthreads-Basicdimensions, MOD)
GB/T 1031 surface roughness parameters and their values
GB/T 1800.4 Limits and fits standard tolerance grades and holes and shafts limit deviations
GB/T 2100 corrosion resistant steel castings for general purposes
GB/T 4239 stainless steel cold-rolled steel and heat
GB/T 7307 55 ° non-sealing pipe thread (GB/T 7307-2001, eqv ISO 228-1.1994)
GB/T 12771 fluid transport stainless steel welded pipe
GB/T 17219 in drinking water safety equipment and protective materials evaluation criteria
GB/T 19228.2 stainless steel compression fittings to connect thin-walled stainless steel tube
GB/T 19228.3 stainless steel compression fittings with rubber O-ring
Nipple ring HG/T 3097-2006 rubber seal --- 110 ℃ hot water supply piping material specification ---
In drinking water equipment and protective materials hygiene and safety evaluation norms Ministry of Health [Health Law Jian Fa [2001] No. 161]
ISO 2037 food industrial stainless steel tube
ISO 2853 for the food industry stainless steel threaded joint
3 Food industry welded stainless steel nipple (hereinafter referred to as welding nipple)
3.1 General
Welded joints suitable for connecting threaded pipe food industry. Pharmaceutical and industrial water supply pipes may choose. When welding nipple
When the pipeline for the food industry, with stainless steel pipe with ISO 2037 or GB/T 19228.2 specified in use; thread should be used
Specified in Annex A trapezoidal thread.
3.2 welded structure type threaded joint, dimensions and tolerances
Installation and connection 3.2.1 welded threaded joint shown in Figure 1.
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