Valid

GB/T 9124.2-2019Steel pipe flanges -- Part 2: Class designated (English PDF)

钢制管法兰第2部分：Class 系列

Preview PDF

This is a limited preview

Buy now to download the full PDF (257 pages)

Need quotation for your management?

Get a formal quotation for GB/T 9124.2-2019 in 30 minutes.

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

May 10, 2019

Implementation date

December 1, 2019

Scope

GB/T 9124.2-2019 is the English-translated version of 钢制管法兰第2部分：Class 系列.

GB/T 9124.2-2019 is a Chinese recommended national standard. Its English version is available from this page.

Found what you need?

Document preview — GB/T 9124.2-2019

National Standard of the People's Republic of China

ICS: 23.040.60
Classification: J15

Issued by: State Administration for Market Regulation, China National Standardization Administration

1 Scope
2 Normative references
3 Types and parameters
3.1 Nominal pressure
3.2 Nominal size
3.3 Outer diameter of steel pipe
3.4 Flange type and code
3.5 Sealing surface type and code
3.6 Flange type and scope of application
4 Type and size of flange
4.1 Flange sealing surface size
4.2 Type and size of flange
5 Technical requirements
5.1 Materials
5.2 Pressure-temperature ratings
5.3 Dimensional tolerance
5.4 Connecting the sealing surface
5.5 Fasteners and gaskets
5.6 Type and size of welding end
5.7 Processing and manufacturing
6 Experiment
7 Inspection and acceptance
7.1 Inspection
7.2 Acceptance
8 Signs and Marks
8.1 Logo
8.2 Marking
9 Supply requirements
1 Scope
2 Normative references
3 Types and parameters
3.1 Nominal pressure
3.1.1 Refer to GB/T 1048 for the definition of nominal pressure.
3.1.2 This Part specifies the following 6 pressure levels marked with Class for nominal pressure.
3.2 Nominal size
3.2.1 Refer to GB/T 1047 for the definition of nominal size.
3.2.2 This Part specifies the following 20 specifications marked with DN (NPS) for nominal sizes.
3.3 Outer diameter of steel pipe

What is delivered

The English PDF of this standard, delivered to your email address.

Instant delivery: the file is sent automatically after payment.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 257 pages — is available in the English PDF.

Referenced standards

Cited by

How to Download GB/T 9124.2-2019

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.