Product structure and use
Two fractions and the three-stage test equipment known as a fixed split ball valve, the valve body of the valve along the channel axis and perpendicular to the cross section is divided into two and a half left and right asymmetry, it is mainly used for cutting pipe, distribution and change the flow direction of medium. It is the pivot structure to ensure the accuracy of the ball position. Standard seat structure by spring, will push the ball valve cover to ensure a good low-pressure sealing performance. The ball valve before the valve seat can be sealed, the so-called two-way sealing characteristics, use of native valve, discharge valve in the cavity can be outside. Pivot structure with anti-blow out protection, low friction coefficient of the bearings. 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 ressure(Mpa)
|
Nominal pressure(Mpa)
|
Pressure level(Class)
|
JIS(MPa)
|
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
150
|
300
|
400
|
600
|
900
|
10K
|
20K
|
|
Strength test
|
2.4
|
3.8
|
6.0
|
9.6
|
15.0
|
3.1
|
7.8
|
10.2
|
15.3
|
23.1
|
2.4
|
3.8
|
|
Seal test
|
1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
2.2
|
5.6
|
7.5
|
11.2
|
16.8
|
1.5
|
2.8
|
|
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
|
Part 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
|
·The main dimensions of
|
Nominal pressure
(MPa)
|
Nominal Path
|
L
|
D
|
D1
|
D2
|
D6
|
b
|
z-φd
|
H(mm)
|
weight(kg)
|
|
mm
|
mm
|
Q
4
7
|
Q
3
4
7
|
Q
6
4
7
|
Q
9
4
7
|
Q
4
7
|
Q
3
4
7
|
Q
6
4
7
|
Q
9
4
7
|
Q
6
7
|
Q
3
6
7
|
|
1.6
|
100
|
229
|
215
|
180
|
155
|
-
|
20
|
8-18
|
178
|
|
416
|
470
|
45
|
|
78
|
85
|
40
|
|
|
125
|
356
|
245
|
210
|
185
|
-
|
22
|
8-18
|
152
|
|
542
|
520
|
58
|
|
107
|
120
|
50
|
|
|
150
|
394
|
280
|
240
|
210
|
-
|
24
|
8-23
|
|
205
|
572
|
538
|
|
117
|
145
|
180
|
|
100
|
|
200
|
457
|
335
|
295
|
265
|
-
|
26
|
12-23
|
|
398
|
736
|
580
|
|
185
|
220
|
245
|
|
155
|
|
250
|
533
|
405
|
355
|
320
|
-
|
30
|
12-25
|
|
495
|
890
|
637
|
|
245
|
280
|
300
|
|
215
|
|
300
|
610
|
460
|
410
|
375
|
-
|
30
|
12-25
|
|
580
|
910
|
683
|
|
395
|
450
|
445
|
|
345
|
|
350
|
686
|
520
|
470
|
435
|
-
|
34
|
16-25
|
|
625
|
1020
|
796
|
|
516
|
570
|
585
|
|
500
|
|
400
|
762
|
580
|
525
|
485
|
-
|
36
|
16-30
|
|
720
|
1080
|
842
|
|
756
|
920
|
860
|
|
700
|
|
450
|
864
|
640
|
585
|
545
|
-
|
40
|
20-30
|
|
770
|
1120
|
874
|
|
958
|
1140
|
1075
|
|
900
|
|
500
|
914
|
705
|
650
|
608
|
-
|
44
|
20-34
|
|
840
|
1150
|
904
|
|
1200
|
1360
|
1310
|
|
1100
|
|
600
|
1067
|
840
|
770
|
718
|
-
|
48
|
20-41
|
|
1050
|
1210
|
1120
|
|
1500
|
1620
|
1450
|
|
1400
|
|
700
|
1245
|
910
|
840
|
788
|
-
|
50
|
24-41
|
|
1100
|
1300
|
1218
|
|
1800
|
1930
|
1810
|
|
1680
|
|
800
|
1397
|
-
|
-
|
-
|
-
|
-
|
-
|
|
1150
|
1460
|
1328
|
|
2100
|
2250
|
2010
|
|
1980
|
|
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