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High Performance Fully Welded Ball Valve

Short Description:

TRUNNION-MOUNTED BALL
The ball is fixed and the seat rings are floating, free to move along the valve axis. Side load generated by the pressure acting on the ball is absorbed by bearings. At low pressure the seat sealing action is achieved by the thrust of the springs acting on the seat rings. As the pressure increases the fluid pressure pushes the seat rings against the ball.


Product Detail

Product Tags

ANTI-STATIC Design

The electrical conductance continuity between all the metallic components is guaranteed and certified.

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

No. Accessory name Material
GB ASTM
1 Spring Inconelx-750 inconelx-750
2 Seat 25+ENP A105+ENP
3 Sealing ring PTFE PTFE
4 ORing NBR-18 NBR-18
5 Put the valve stem** 12Cr13 A276-410
6 Bottom cover 25 A105
7 Slip the bearing PTFE PTFE
8 Body 25 A105
9 The end covering 25 A105
10 ORing NBR-18 NBR-18
11 Ball 25+ENP A105+ENP
12 ORing NBR-18 NBR-18
13 Stem** 12Cr13 A276-410
14 Key 45 1045
15 Grease injection valve Package Package
16 Packing body 25 A105
17 "O"Ring NBR-18 NBR-18
18 Packing case 25 A105
19 Packing seat 12Cr13 A276-410
20 Packing PTFE ;Carbon fibre;Soft graphite
21 Packing gland WCB A216-WCB
22 Screw 35CrMoA A193-B7
23 Yoke WCB A216-WCB
24 Connection set 45 1045
25 Key 45 1045
26 Driving Package Package

Note: The material of this part about the anti-sulphur typo valve is GB(12Cr18Ni9+ NIP)ASTM(A182-304+NIP).
The material of this part about the anti-sulphur type valve is GB(12Cr18Ni9)ASTM(A276-321).
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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