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JB/T 2203-2025Spring-loaded Safety Valves - Structural Length (English PDF)

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

August 19, 2025

Implementation date

March 1, 2026

Scope

JB/T 2203-2025 (Spring-loaded Safety Valves - Structural Length) is available as an English-translated PDF.

JB/T 2203-2025 — Spring-loaded Safety Valves - Structural Length

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Document preview — JB/T 2203-2025

National Standard of the People's Republic of China

ICS: 13.240
Classification: J 16
Replacing: JB/T 2203-2013

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies the structural length of spring-loaded safety valves. This standard applies to the manufacture of spring-loaded safety valves for industrial equipment and pipelines with nominal sizes of DN10��DN500 and nominal pressures of PN10��PN320 or nominal sizes of NPS3/8��NPS20 and nominal pressures of Class150°Class2500.

Document data

International classification (ICS): 13.240.

Chinese classification (CCS): J16.

Supersedes the earlier edition JB/T 2203-2013.

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

Referenced standards

Cited by

GB/T 12243-2021Spring loaded safety valves

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