DL/T 439-2018The technical guide for high-temperature bolt of fossil-fired power plant (English PDF)
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Issued by
National Energy Administration
Level / Type
National · Recommended
Issue date
April 3, 2018
Implementation date
July 1, 2018
Scope
DL/T 439-2018 (The technical guide for high-temperature bolt of fossil-fired power plant) is available as an English-translated PDF.
DL/T 439-2018 — This standard stipulates the selection, inspection contents, methods and treatment measures for high temperature fasteners in thermal power plants, and puts forward requirements for the fastening and disassembly of bolts.
This standard is applicable to the inspection and treatment of bolts, nuts and washers for cylinders, valves, valves and steam pipe flanges with a working temperature above 400 ��C.
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Document preview — DL/T 439-2018
National Standard of the People's Republic of China
- ICS
- 27.100
- Classification
- F 20
- Replacing
- DL/T 439-2006
Issued by: National Energy Administration
Contents
- What this standard covers1
- Document data2
- Standards quoted by this document3
What this standard covers
This standard stipulates the selection, inspection contents, methods and treatment measures for high temperature fasteners in thermal power plants, and puts forward requirements for the fastening and disassembly of bolts. This standard is applicable to the inspection and treatment of bolts, nuts and washers for cylinders, valves, valves and steam pipe flanges with a working temperature above 400 degCC. For fasteners with a working temperature of 400 degC C and below, refer to the implementation.
Document data
International classification (ICS): 27.100.
Chinese classification (CCS): F20.
Estimated length of the Chinese original: 18,130 words.
Supersedes the earlier edition DL/T 439-2006.
Standards quoted by this document
GB/T 2; GB/T 3; GB/T 90.1; GB/T 90.2; GB/T 98; GB/T 196; GB/T 197; GB/T 226; GB/T 231.1; GB/T 5779.1; GB/T 5779.2; GB/T 6394; GB/T 17394.1; NB/T 47013.4; NB/T 47013.5; DL/T 441; DL/T 694; DL/T 884; DL/T 1719; DL/T 1845
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.
Referenced standards
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