GB/T 35529-2017 in English
VALIDRubber diaphragm for city gas pressure regulators
- Issued on:2017-12-29
- Implemented on:2018-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 35529-2017 |
| Document status: | VALID |
| Title in English: | Rubber diaphragm for city gas pressure regulators |
| Title in Chinese: | 城镇燃气调压器用橡胶膜片 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2017-12-29 |
| Implemented on: | 2018-07-01 |
| Chinese Classification: | G42-Rubber tube, rubber belt and tape |
| Professional Classification: | GB-National Standard |
| Related Keywords: | rubber diaphragm
city gas pressure regulators introduction town gas pressure regulators rubber material performance requirements rubber diaphragms |
| Related Topics: | town
Regulator Rubber Diaphragm with diaphragm Regulator en549 gas diaphragm Diaphragm rubber Standard diaphragm Rubber Diaphragm town gas Town Gas Planning Town gas station GBT35529 GB/T 35529-2017 Replacement of gas facilities for urban gas residential users cjj/t153-2010 Town gas signs Film withstand voltage test Rubber coating |
《GB/T 35529-2017城镇燃气调压器用橡胶膜片》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC10（全国橡胶与橡胶制品标准化技术委员会涂覆制品分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
1. Background and significance of standard formulation
GB/T 35529-2017 Rubber Diaphragms for Town Gas Pressure Regulators was formulated to meet the demand for high-performance rubber diaphragms in my country's town gas transmission and distribution systems. This standard specifies the classification, size specifications, appearance quality, performance requirements, etc. of rubber diaphragms for town gas pressure regulators to ensure their reliability and safety under different working conditions.
2. Comparison of standard frameworks
| Standard dimensions | GB/T 35529—2017 | Related international standards | Comparative analysis |
|---|---|---|---|
| Classification method | Shape, temperature, pressure | ISO/TC 208, etc. | In line with international standards and combined with domestic actual needs |
| Performance indicators | Tensile strength, Shore hardness, compression permanent deformation | Similar requirements | Some parameters are more stringent |
| Test methods | GB/T 528, GB/T 1690, etc. | ASTM D2000, etc. | High compatibility, suitable for domestic laboratories |
3. Interpretation of the core content of the standard
3.1 Rubber material performance requirements
The minimum tensile strength of the rubber material is 10.0 MPa, and the minimum elongation at break is 400%. The Shore hardness is required to be within the range of 55±5 degrees to ensure the deformation recovery ability of the diaphragm at different temperatures.
3.2 Liquid resistance performance test
The liquid resistance test uses a type II specimen, which is pre-baked at 70℃ for 16 hours before being immersed in the test. The mass change rate and volume change rate must be controlled within ±20% and ±30% respectively to ensure the stability of the diaphragm in a complex medium environment.
3.3 Low temperature resistance
The ordinary diaphragm needs to be kept at -10℃ for 1 hour, and the low temperature diaphragm needs to be kept at -20℃ for 1 hour. After the test, visually check the surface for no fracture, crack or delamination.
4. Implementation suggestions
- Manufacturers: Strictly purchase raw materials and control the production process in accordance with standard requirements, and establish a complete quality inspection system.
- Inspection agencies: Regularly sample and inspect finished products, focusing on the appearance quality and performance indicators of the diaphragm to ensure compliance with GB/T 35529-2017 requirements.
- User units: should check the product identification and test report before use to ensure that the diaphragm is suitable for specific working conditions.
- Technology upgrade: It is recommended that relevant companies pay attention to standard updates and technological progress, adjust production processes in a timely manner, and improve product performance.
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