GB/T 21384-2016 in English
VALIDElectric water-heater safety valve
- Issued on:2016-08-29
- Implemented on:2017-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$78.00
| Standard No: | GB/T 21384-2016 |
| Document status: | VALID |
| Title in English: | Electric water-heater safety valve |
| Title in Chinese: | 热水器用安全阀 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2016-08-29 |
| Implemented on: | 2017-03-01 |
| Superseding: |
GB/T 21384-2008 Electric water-heater safety valve
|
| ICS Classification: | 13.240-Protection against excessive pressure |
| Chinese Classification: | J16-Valve |
| Professional Classification: | GB-National Standard |
| Related Keywords: | safety valves safety valves
electric water-heater safety safety valve safety valves electric water heaters |
| Related Topics: | safety valve
how to use water safely GBT21384 GB/T 21384-2008 GB/T 21384-2016 Hot and cold water solenoid valve Hot water solenoid valve testing standards |
《GB/T 21384-2016电热水器用安全阀》由TC503（全国安全泄压装置标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
In-depth interpretation of GB/T21384—2016 National Standard for Safety Valves for Electric Water Heaters
1. Background of Standard Formulation and Analysis of Technology Evolution
This standard replaces the original GB/T21384—2008, and comprehensively optimizes the technical requirements and performance parameters of safety valves for electric water heaters. The new standard reflects technological progress and changes in industry needs in terms of terminology, structural design, and material selection.
2. Comparison of standard frameworks
| Items | 2008 version requirements | 2016 version requirements |
|---|---|---|
| Definition of terms | Includes "opening pressure" and undefined "set pressure" | Deletes "opening pressure" and adds "set pressure" (3.7) |
| Emission requirements | Includes provisions for leakage at the discharge port | Deletes relevant requirements and strengthens sealing performance (5.1.1, 5.1.5) |
| Thread length and torque | There is no specific regulation on thread length, and the torque requirement is 60N·m | Specify that thread length ≥10mm, torque ≥60N·m |
3. Interpretation of technical requirements for safety valves
Safety valves for electric water heaters have a direct impact on the safety and reliability of the product. The new standard focuses on the following aspects:
- Set pressure range: 0.025 MPa ~1.0 MPa
- Discharge pressure: 0.6 MPa~0.9 MPa for closed type, 0.15 MPa~0.35 MPa for open type
- Upper limit of medium temperature: 95℃
4. Material and manufacturing process requirements
The standard puts forward strict requirements on the material selection and manufacturing process of safety valves:
| Part name | Material requirements | Compliance with standards |
|---|---|---|
| Valve body | Brass | GB/T5231 |
| Spring | Stainless steel wire | GB/T24588 |
5. Implementation suggestions and precautions
In order to ensure that the safety valve meets the latest standards, the company should:
- Strictly follow the inspection rules (Table 5) for factory and type inspection
- Strengthen surface quality control to ensure that the thickness of the electroplating layer is ≥6μm (5.10.2)
- Pay attention to the salt spray test results to meet the 10th level requirements of GB/T6461 (5.10.3)
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