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Database: 189759 (12 Oct 2025)
JB/T 1749-2008 English PDF
JB/T 1749: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
JB/T 1749-2008
English
239
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2 days [Need to translate]
Components of valves. Discs of Ammonia valves
Obsolete
JB/T 1749-2008
JB/T 1749-1991
English
199
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2 days [Need to translate]
(Ammonia valve flap)
Obsolete
JB/T 1749-1991
JB 1749-1975
English
RFQ
ASK
3 days [Need to translate]
(Chinese Industry Standard)
Obsolete
JB 1749-1975
PDF similar to JB/T 1749-2008
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Basic data
Standard ID
JB/T 1749-2008 (JB/T1749-2008)
Description (Translated English)
Components of valves. Discs of Ammonia valves
Sector / Industry
Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard
J16
Classification of International Standard
23.060
Word Count Estimation
6,611
Date of Issue
2008-02-01
Date of Implementation
2008-07-01
Older Standard (superseded by this standard)
JB/T 1749-1991
Quoted Standard
GB/T 700-2006; GB/T 1804-2000; GB/T 12226-2005
Regulation (derived from)
NDRC Notice No. 11 of 2008
Issuing agency(ies)
Ministry of Industry and Information Technology
Summary
This standard specifies the ammonia valve flap structure, size and technical requirements. This standard applies to no more than nominal pressure PN25, nominal size DN10 ~ DN150 ammonia valves.