HG/T 2138-1991
Glass-lined concentric reducer (English Version)
- Standard No.
- HG/T 2138-1991
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Chemical Industry
- Status
- 2009-07
- Replace By
- HG/T 2138-2009
- Latest
- HG/T 2138-2022
- Scope
- This standard specifies the type, basic parameters, dimensions and technical requirements of Jing Glass concentric reducers. This standard is applicable to glass-lined concentric glass-lined concentric ones with nominal pressure (PN) equal to or less than 1.0 MPa and medium temperature: type A reducer is -20°C to 200°C, type B and type C reducer is -10°C to 200°C Reducer.
HG/T 2138-1991 history
- 2022 HG/T 2138-2022 Glass lined concentric reducers, eccentric reducers and reducing flanges
- 2015 HG/T 2138-2015 Glass lining concentric reducer
- 2009 HG/T 2138-2009 Glass lined concentric pipes
- 1970 HG/T 2138-1991 Glass-lined concentric reducer
