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NB/T 42027-2013Technical Specification for Pressure Retaining Casting of Screw Expander (English PDF)

螺杆膨胀机承压铸钢件技术规范

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

November 28, 2013

Implementation date

April 1, 2014

Scope

NB/T 42027-2013 is the English-translated version of 螺杆膨胀机承压铸钢件技术规范.

NB/T 42027-2013 is the recommended Chinese energy industry standard for the pressure retaining castings of a screw expander.

The castings it covers are the ones that hold the working pressure, among them the casing, the front seat, the rear end seat and the valve bodies, and for these it sets the ordering requirements, the technical requirements, the methods of test and inspection, the marking and the certification that goes with them.

It is written for the purchase and acceptance of such castings rather than for the assembled machine. Classified K59 and ICS 27.040, it relies on GB/T 222-2006 and on the GB/T 223 series of methods for the chemical analysis of steel. Issued on 28 November 2013, it has applied since 1 April 2014.

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Document preview — NB/T 42027-2013

National Standard of the People's Republic of China

ICS: 27.040

Issued by: National Energy Administration of the People's Republic of China

1 Foreword

NB/T 42027-2013 was issued by National Energy Administration of the People's Republic of China on 28 November 2013 and has been in force since 1 April 2014.

2 Scope

This standard is the recommended Chinese energy industry standard for the pressure retaining castings of a screw expander. The castings it covers are the ones that hold the working pressure, among them the casing, the front seat, the rear end seat and the valve bodies, and for these it sets the ordering requirements, the technical requirements, the methods of test and inspection, the marking and the certification that goes with them. It is written for the purchase and acceptance of such castings rather than for the assembled machine. Classified K59 and ICS 27.040, it relies on GB/T 222-2006 and on the GB/T 223 series of methods for the chemical analysis of steel.

3 Normative references

NB/T 42027-2013 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 222-2006

GB/T 223.3

GB/T 223.4

GB/T 223.5

GB/T 223.6

GB/T 223.7

GB/T 223.8

GB/T 223.11

GB/T 223.12

GB/T 223.13

GB/T 223.14

GB/T 223.16

GB/T 223.17

GB/T 223.18

GB/T 223.19

GB/T 223.20

GB/T 223.21

GB/T 223.22

GB/T 223.23

GB/T 223.26

4 About this standard

Issued by: National Energy Administration of the People's Republic of China

English translation: about 15 pages

5 Classification and status

International classification (ICS): 27.040

Prefix NB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 223.16

Similar standards

NB/T 11268-2023|NB/T 10299-2019|NB/T 10300-2019|NB/T 10090-2018|NB/T 42068-2016|NB/T 42069-2016

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