Product structure and use
3 split forged steel fixed ball valve connection, valve system will be in two parts along with the valve seat channel cross-section perpendicular to the axis is divided into three parts, the whole platform along the valve stem around the central axis of symmetry, it is in the pipeline on mainly used for cutting, distribution, and change the flow direction of medium. Its large pivot structure to ensure accuracy of the ball in the high pressure center to ensure good valve performance; standard seat structure by spring, will push the ball valve seat to ensure a good two-way sealing performance of import and export; use native valve, discharge valve in the cavity can be outside; pivot blow protected by anti-structure, effectively prevent leakage; low friction coefficient of the bearings, so to minimize torque, easy to open and close the valve; the stem and the effective body contact, so that anti-static grounding device such as superior performance. High-performance, high reliability, wide range of uses, reasonable cost.
Applies to: chemical, petroleum, natural gas, metallurgy, etc., and with hydrogen sulfide media, impurities, corrosion serious long distance gas pipelines.
• Key Performance Specifications
Test pressure(Mpa) |
Nominal pressure(Mpa)
|
Pressure level(Class)
|
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
25.0
|
150
|
300
|
400
|
600
|
900
|
1500
|
|
Strength test
|
2.4
|
3.8
|
6.0
|
9.6
|
15.0
|
24
|
37.5
|
3.1
|
7.8
|
10.2
|
15.3
|
23.1
|
38.4
|
|
Seal test
|
1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
17.6
|
27.5
|
2.2
|
5.6
|
7.5
|
11.2
|
16.8
|
28.1
|
|
Airtight test
|
0.5-0.7
|
|
Operating Temperature
|
PTEE ≤ 150 ℃ PPL E ≤ 300 ℃ carbon ≤ 350 ℃
|
|
For media
|
C: water, oil, steam P: nitric acid (temperature ≤ 200 ℃) R: acetic acid (temperature ≤ 200 ℃)
|
Main components material
Name |
Material
|
|
Material code
|
C
|
L
|
P
|
R
|
|
Valve bonnet
|
WCB
|
ZGOOCr17Ni14Mo2(CF3M)
|
ZG1Cr18Ni9Ti(CF8)
|
ZG1Cr18Ni12Mo2Ti(CF8M)
|
|
Sphere
|
2Cr13
|
ZGOOCr17Ni14Mo2(CF3M)
|
ZG1Cr18Ni9Ti(CF8)
|
ZG1Cr18Ni12Mo2Ti(CF8M)
|
|
Stem
|
2Cr13
|
316L
|
1Cr18Ni9Ti(304)
|
1Cr18Ni12Mo2Ti(316)
|
|
Seat sealing surface
|
PTFE, carbon fiber + PTFE, polystyrene on the bit
|
|
Stud nuts
|
35 35CrMoA(B7) 45(2H)
|
2Cr13(420) 1Cr18Ni9 1Cr17Ni2(431)
|
|
Filler
|
V-PTFE, flexible graphite
|
|
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