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China New Product Cryo Ball Valve - Three-piece Hard Seal Ball Valve – BVMC

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China New Product Cryo Ball Valve - Three-piece Hard Seal Ball Valve – BVMC Detail:

Performance Specification

Pressure Testing pressure at constant temperature (MPa) Applicable temperature Applicable medium 
The shell testing High-pressure seal Low-pressure seal
Nominal rating pressure(PN) 1.6 2.4 1.76 0.6 -29~121℃
or upon the user requirement
Natural gas,liquefied gas,coal gas,oil,water, requirement
2.5 3.75 2.75 0.6
4.0 6.0 4.4 0.6
6.4 9.6 7.04 0.6
10.0 15.0 11.0 0.6
16.0 24.0 17.6 0.6
Pressure classes(Class) 150 2.94 2.16 0.6
300 7.67 5.62 0.6
400 10.2 7.48 0.6
600 15.3 11.23 0.6
900 23.0 16.85 0.6
1500 39.0 28.6 0.6

Technical Specification

Design reference GB API ASME
Design standard GB/T12237 API6D ASME B16.34
Structural length Flanged ends GB/T12221 API6D ASME B16.10
Welded connection GB/T12221
Flanged ends GB/T9113JB/T79 ASME B16.5
Butt-welding ends GB/T12224 ASME B16.25
Test &inspection GB/T13927 JB/T9092 API6D API598

Note:The sizes of valve connecting flange and butt-welding terminas can be designed according to customer’s requirement.

Major Parts Material Form (hard Seal)

No. Accessory name Material
GB ASTM
1 Body WCB A216-WCB
2 Packing Graphite Graphite
3 Seat 0Cr19Ni10Ti+STL A182-F304+STL
4 Ball 0Cr19Ni10Ni9Ti+N A182-F304+N
5 Stud 35CrMoA A193-B7
6 Nut 45 A194-2H
7 Spring yoke 06C19Ni10 A182-F304
8 Spring InconelX-750 Inconel X-750
9 Bonnet WCB A216-WCB
10 Gasket Graphite+1Cr18Ni9Ti Graphite+304
11 Gasket 06C19Ni10 A182-F304
12 Packing Graphite+1Cr18Ni9Ti Graphite+304
13 Stem 06C 19N110 A182-F304
14 Packing gland WCB A216-WCB
15 Locating piece Q235A A36
16 Wrench WCB A216-WCB
17 Ring 65Mn AISI1566
18 Screw nail 35CrMoA A193-B7

Note: Major parts of the valve series and materials of sealing surface differ according to actual working condition and customer’s special requirement.


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China New Product Cryo Ball Valve - Three-piece Hard Seal Ball Valve – BVMC detail pictures


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