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GB/T 15700-2008: Polytetrafluoroethylene bellows compensators
Status: Valid GB/T 15700: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15700-2008 | English | 229 |
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Polytetrafluoroethylene bellows compensators
| Valid |
GB/T 15700-2008
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| GB/T 15700-1995 | English | 279 |
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3 days [Need to translate]
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General specification for polytetrafluoroethylene bellows compenstors
| Obsolete |
GB/T 15700-1995
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PDF similar to GB/T 15700-2008
Basic data | Standard ID | GB/T 15700-2008 (GB/T15700-2008) | | Description (Translated English) | Polytetrafluoroethylene bellows compensators | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J15 | | Classification of International Standard | 23.040.70 | | Word Count Estimation | 10,123 | | Date of Issue | 2008-08-25 | | Date of Implementation | 2009-04-01 | | Older Standard (superseded by this standard) | GB/T 15700-1995 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.14 (Total No.127) | | Issuing agency(ies) |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 PTFE bellows (also known as PTFE expansion joints, hereinafter referred to as " compensation ") classification and marking, materials, requirements, test methods, inspection rules and signs packaging, transport and storage. This standard applies to the thermal displacement compensation for pipeline installation and equipment and corrosion-resistant PTFE bellows noise and vibration absorption used in pipes or equipment. | GB/T 15700-2008: Polytetrafluoroethylene bellows compensators---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.
Polytetrafluoroethylene bellows compensators
ICS 23.040.70
J15
National Standards of People's Republic of China
Replacing GB/T 15700-1995
PTFE bellows
Posted 2008-08-25
2009-04-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 15700-1995 "PTFE bellows compensator general technical conditions."
This standard and GB/T 15700-1995 compared to the main changes are as follows.
--- The standard name is deleted general technical conditions;
--- Standard applies to a temperature range determined by product type;
--- Increased polytetrafluoroethylene composite metal bellows and PTFE composite metal steel jacket bellows two types of products;
--- Increasing the naming;
--- Clear polytetrafluoroethylene tubular part thickness requirements;
--- According to the thickness changed the withstand voltage value;
--- Added pressure test pressure test methods and waived pressure test conditions;
--- Cancel the test temperature requirements;
--- Modify the tightness requirements and test methods;
--- Modify the vacuum test, the fatigue resistance of vacuum blasting performance requirements and test methods;
--- Remove the welding requirements;
--- Increased packaging, storage flag, express transport and storage requirements.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee pipe accessories.
This standard was drafted. Nanjing Chenguang East Lo Bellows Ltd., the machine Productivity Promotion Center, Wenzhou City Fusu equipment factory, temperature
City preservative Equipment Co., Ltd., Hubei Amkor Engineering Plastics Co., Ltd., Laiwu Iron and Steel Co., Ltd. Thermal Power Plant, Wenzhou Zhao have Freon
Ltd., Jiangsu Province Special Equipment Safety Supervision and Inspection Institute.
The main drafters of this standard. Chen Su, Qian Yun Shan, Li Junying, Chengxiu Ping, Zhang Xibo, the whole Wu Liang, Zhang Bin, CHEN Guo, Miao Chunsheng.
This standard replaces the standards previously issued as follows.
--- GB/T 15700-1995.
PTFE bellows
1 Scope
This standard specifies the PTFE bellows compensator (also known as PTFE expansion joints, hereinafter referred to as "compensation") classification and marking,
Materials, requirements, test methods, inspection rules and signs packaging, transport and storage.
This standard is suitable for installation in pipes or equipment for thermal displacement compensation pipeline and equipment corrosion and vibration absorbing noise and the use of
PTFE bellows.
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, according to research encourages the parties to the agreement
Study whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 191 Packaging - Pictorial signs (GB/T 191-2008, ISO 780.1997, MOD)
GB/T 1033 plastic density and relative density test method (GB/T 1033-1986, eqv ISO /DIS1183. 1984)
Determination of GB/T 1040 (all parts) Tensile Properties of Plastics
GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance tolerance (eqv ISO 2768-1.1998)
GB/T 9124 steel pipe flanges
GB/T 12777 metal bellows expansion joint general technical conditions
GB/T 14525 corrugated metal hose general technical conditions
QB/T 3624-1999 polytetrafluoroethylene tube
QB/T 3625-1999 PTFE sheet
QB/T 3627-1999 PTFE film
3 Categories and tags
3.1 Classification
Have compensator to enhance and strengthen divided into the following five categories according to its outer surface.
a) PTFE bellows, type code FB;
b) PTFE composite rubber bellows, type code FX;
c) metal bellows Teflon-lined bellows, type code FJ;
d) PTFE composite metal bellows, type code FW;
e) PTFE composite steel sleeve metal bellows, type code FG.
3.2 mark
Compensator, codes and symbols as follows.
Product Type Code
10 times the design pressure, the design pressure in MPa
Nominal size
Design displacement, axial displacement (mm) or angular deflection (°)
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