JB/T 6296.4-1992 Steam turbine pipeline accessories pressure gauge needle valve JB/T6296.4-1992 standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6296.4-1992
Steam Turbine Pipe Accessories
1992-06-26 Issued
Pressure Gauge Needle Valve,
1993-01-01 Implementation
Issued by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Steam Turbine Pipe Accessories
: Pressure Gauge Needle Valve
1 Subject Content and Scope of Application
This standard specifies the type, size and basic requirements of pressure gauge needle valves. JB/T 6296.41992
This standard is applicable to pressure gauges with pressure below 10MPa and medium such as water, saturated steam, superheated steam, oil vapor, etc. 2 Reference standards
GB1220
GB3077
Stainless steel bars
Technical conditions for alloy structural steel
ZBK54003 Technical conditions for water pressure test of pressure-bearing parts of steam turbine Structural types and dimensions
Structural types and dimensions are as specified in the figure below
4 Technical requirements
Main parts should be made of materials specified in the table below. 4.1
Approved by the Ministry of Machinery and Electronics Industry on June 26, 1992 and implemented on January 1, 1993
JB/T6296.41992
15CrMoA
35CrMoA
OCr19Ni9www.bzxz.net
(1Cr18Ni9Ti)
GB3077
GB1220
Note: The steel types in brackets are not recommended
The valve shall be subjected to water pressure test, which shall be carried out in accordance with the provisions of ZBK54003. The test pressure is 15MPa. 4. 2
Inspection rules
≤450
The product must be inspected and accepted by the factory technical inspection department before leaving the factory, and a certificate of conformity or relevant qualified marks shall be issued before leaving the factory. All main parts shall be subjected to spectral inspection. Marking, packaging, storage, rust prevention
The product should be cleaned and sealed with anti-rust oil and grease. The packaging should be made of cartons, wooden boxes, etc. The inside of the box should be lined with moisture-proof paper, and the outside of the box should be marked with signs such as "rainproof", "moisture-proof", and "handle with care". The product should be placed in a dry and clean warehouse, and it is not allowed to be stored in acidic, alkaline or other places that may cause product corrosion. Under normal conditions, the rust prevention period of the product is 12 months. Additional remarks:
This standard was proposed and managed by Shanghai Power Generation Equipment Complete Design Institute. This standard was drafted by Nanjing Steam Turbine and Electric Motor Factory and Shanghai Power Generation Equipment Complete Design Institute. The main drafters of this standard are Wang Xingbang, Ren Qihua, and Fang Chonghua.
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