QB/T 4287-2012
Valve interlock (English Version)
- Standard No.
- QB/T 4287-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- Professional Standard - Light Industry
- Latest
- QB/T 4287-2012
- Scope
- This standard specifies the terms and definitions, classification, materials, requirements, test methods, inspection rules and markings, packaging, transportation and storage of valve locks. This standard is applicable to valve locks with mechanical interlocking function installed on various pipeline valves with working environment temperature -60℃~80℃.
QB/T 4287-2012 Referenced Document
- GB/T 12230 Specifications for stainless steel castings for general valves*， 2023-05-23 Update
- GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)*， 2013-02-15 Update
- GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
QB/T 4287-2012 history
- 2012 QB/T 4287-2012 Valve interlock
