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NB/T 47017-2011Sightglass for pressure vessels (English PDF)

压力容器视镜

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

July 1, 2011

Implementation date

October 1, 2011

Scope

NB/T 47017-2011 is the English-translated version of 压力容器视镜.

NB/T 47017-2011 is the Chinese standard "Sightglass for pressure vessels". Its scope clause reads: This standard specifies the types, basic parameters and technical conditions of sight glass for pressure vessels.

This standard is applicable to sight glass for pressure vessels with nominal pressure not greater than 2.5 MPa, nominal diameter of 50 mm~200 mm, maximum allowable medium temperature of 250 °C and maximum sudden temperature difference of 230 °C. Its clauses include specifications and designation.

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Document preview — NB/T 47017-2011

National Standard of the People's Republic of China

ICS: 23.020.30

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

Foreword i
1 Scope
2 Normative references
3 Specifications and designation
4 Types
5 Basic parameters
6 Marks
7 Technical conditions
8 Marking, transportation and packaging
Annex A (Informative) Selection of companion pipe flange for clamping and fixing sight glass
Annex B (Informative) Selection of sight glass spotlights
Annex C (Informative) Selection of sight glass rinsing device

1 Scope

This standard specifies the types, basic parameters and technical conditions of sight glass for pressure vessels.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB 150 Pressure vessels

GB/T 897-1988 Double end studs—bm=1d

GB/T 1804-2000 General tolerances—Tolerances for linear and angular dimensions without individual tolerance indications

GB/T 6170-2000 Hexagon nuts, style 1

GB/T 23259-2009 Sight glass for pressure vessels

HG/T 20592-2009 Steel pipe flanges (PN designated)

HG/T 20606-2009 Non-metallic flat gaskets for use with steel pipe flanges (PN designated)

JB/ZQ 4452-2006 Cheese head screws plug

3 Specifications and designation

See table 1 for specifications and designation of sight glass for pressure vessels.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.

Referenced standards

Normative references

GB 150 · JB/ZQ 4452 - 2006

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NB/T 11270-2023|NB/T 11274-2023|NB/T 11475-2023|NB/T 47015-2023|NB/T 47028-2023|NB/T 47029-2023

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