GB/T 14211-2019 in English
VALIDTest method of mechanical seal
- Issued on:2019-10-18
- Implemented on:2020-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 14211-2019机械密封试验方法》由TC491（全国机械密封标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
National Standard of the People's Republic of China GB/T 14211—2019
Mechanical seal test method is an important technical standard in the field of mechanical equipment, which is used to evaluate and test the performance of mechanical seal products. This article will deeply interpret the main contents and technical requirements of the standard.
Background of Standard Formulation and Analysis of Technical Evolution
GB/T 14211—2019 replaces the old version GB/T 14211—2010, and is mainly optimized in the following aspects:
- Add normative reference documents: GB/T 33509 and JB/T 11289 are added to ensure the scientificity and authority of the standard.
- Introduction of airtightness test: New airtightness test requirements are added to the factory test to strengthen the sealing performance detection.
- Refine test classification: subdivide test methods according to sealing arrangement and conveying medium type.
Comparative analysis of standard frameworks
| Project dimensions | GB/T 14211—2019 | GB/T 14211—2010 |
|---|---|---|
| Test classification | Subdivided by sealing arrangement and medium | Not clearly divided |
| Airtightness test requirements | New mandatory inspection items | No relevant requirements |
| Test medium types | Clearly divided according to Table 1 and Table 2 | Only some media are mentioned |
Interpretation of mechanical seal test methods
1. Factory test requirements
Factory test is a key link to ensure product qualification, mainly including:
- Air tightness test: Use nitrogen or air at room temperature, pressure 0.17 MPa, maintain pressure for 5 minutes, and the pressure drop does not exceed 0.014 MPa.
- Static pressure test: The medium pressure is 1.25 times the maximum allowable working pressure, and the leakage and temperature changes are recorded.
- Dynamic test: Simulate actual operating conditions, run continuously for 5 hours, and test leakage and power consumption.
2. Type test requirements
Type test is to evaluate the performance of mechanical seals under specific media and working conditions, including:
- Dynamic test: Continuous operation for 100 hours, recording key parameters.
- Static test: Maintain for 4 hours, test leakage and temperature change.
- Start-stop test: Complete 5 start-stop operations to evaluate the stability of the seal.
Implementation suggestions and precautions
To ensure the accuracy and reliability of mechanical seal testing, it is recommended to:
- Strictly select test media and isolation fluids in accordance with standard requirements.
- Use calibrated instruments and ensure that the accuracy meets the requirements.
- The test device should have good voltage stabilization and temperature control performance.
- Record the test data in detail and keep the test report properly.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 10444-2024 in English
Method of type establishment for mechanical seals
2024-09-29 -
GB/T 29035-2022 in English
Test method for flexible graphite ring
2022-12-30 -
GB/T 29463-2023 in English
Gaskets used in tube-shell heat exchangers
2023-09-07 -
GB/T 33509-2017 in English
General specification for mechanical seals
2017-03-03 -
GB/T 41069-2021 in English
Terminology of rotary joints
2021-12-31
