BS 5154 is the UK's design and manufacturing standard for copper alloy valves, which mainly regulates the technical requirements of copper alloy globe valves, check valves and gate valves. The following are its core elements:
1. Scope of application
Valve type
Covering globe valves, stop-check valves, check valves and gate valves made of copper alloy.
Industrial scene
Applicable to non-high temperature and high pressure working conditions such as water treatment, low-pressure gas, and chemical industry, with particular emphasis on the sealing reliability of corrosive media.
2. Technical specifications
Material requirements
Valve body, valve cover and other main parts must be made of copper alloy (such as brass and bronze) to ensure corrosion resistance and mechanical strength.
The sealing surface can be processed with copper alloy body or clad with soft alloy (such as babbitt alloy).
Structural characteristics
Connection method: Support threaded connection or flange connection, and the flange size must comply with BS 4504 and other standards.
Sealing design: Dual structure of forced sealing and elastic sealing, suitable for frequent opening and closing conditions.
Performance parameters
Pressure level: Usually covers PN10-PN16 (about 1.0-1.6MPa), suitable for medium and low pressure pipeline systems.
Temperature range: Conventional models are suitable for temperatures ranging from -20℃ to 120℃.
3. Testing and Certification
| Test items | Require |
|---|---|
| Sealing test | Using water pressure test, maintain 1.1 times the nominal pressure for 30 minutes without visible leakage |
| Strength test | The valve body needs to withstand 1.5 times the nominal pressure without structural deformation or leakage for a long time |
| Material Testing | The copper alloy composition must comply with BS EN 1982 and provide a material warranty |
4. Relationship with other standards
BS 5153: For cast iron check valves, it complements BS 5154 in terms of materials.
BS 1212: Covers ball valve standards, and together with BS 5154, it constitutes the British valve standard system
