Trunnion Mounted Ball Valve

Content Specification
General design standard API6D
Pressure-temperature rating ASME B16.34
Face to face dimensions ASME B16.10
Flange type and dimensions ASME B16.5
Butt-welded end ASME B16.25
Inspection and test API598
Trunnion Mounted Ball Valve Construction Features Function:
1.Up stream Sealing Two-way Valve
The up stream seal of the Valve is fulfilled by the advanced spring pre-tighting seat package which has a feature of self-tightness. The two-way valve has two seats that can be sealed on two directions, so there' s no limitation of flow direction during installation.
2.Double Block &Bleed Valve
Being up stream side sealing , the valve can bleed out the trapped fluid in the body cavity when the valves is in fully open or fully close position. the fluid is intercepted by seats of up stream and down stream side. So, the stem packing or O-ring may be replaced under working ressure. And to bleed the dirty fluid eriodically can reduce damage of the sealing surface and prolong the service life of the valve.

3.Automatic Relief of the Cavity:
If the pressure of the body cavity unusually goes up, ZGFQ valve can automatically relieve the pressure by compressing the spring in the spring pre-tighting seat package.
4.Full Bore or Reduce Bore:
Either full bore or reduce bore can be available according to ustomers' requirements. For full bore type, the diameter of the valve ball bore is as same as the pipe size, which facilitates pigging operation.
 
5.Fireproof Design:
When the non-metal seat are softened and burnt in case of the fire or unusual temperature increase, the seat retainer, under the duty of the spring, will touch with the ball and form a metal -to-metal contact, which can prevent internal leak: meanwhile, the middle flange and the upper part and lower part of the stem will form a metal-to-metal
contact which can prevent external leak and conform to API6FA or API607.


6.Assistant Grease Injection Valve
When seat and stem sealing system is damaged, the grease injection valve can inject sealing grease into the valve for temporary sealing.
7.Stem Sealing System
Two O-rings are adopted in/out the stem position with reliable performance.
8.Stem Extension
According to installation or operation need, the valve stem may be extended. This design is suitable for under ground application. The stem extension length can be confirmed by customer.
9.Flexible Operation.
The seat and stem bearing adopt Teflon with small friction and self-lubrication to reduce the valve operation torque. The valve can be easily operated for long period even with no sealing lubrication grease.
 
10.Multi-Operation Type.
The valve may be operated by hand, pneumatic operator, motor, hydro-pneumatic operator and hydraulic operator, etc.
 
   
API Series Trunnion Mounted Ball Valve
   
CLASS150 Dimensions£®Flange dimensions refer to ASME B16.5 CLASS150£©
DN
2"
21/2"
3"
4"
5"
6"
8"
10"
12"
14"
16"
18"
20"
24"
28"
d1
51
64
76
102
127
152
203
254
305
337
387
438
489
591
686
L
RF
178
191
203
229
356
394
457
533
610
686
762
864
914
1067
1245
BW
216
241
283
305
381
457
521
559
635
762
838
914
991
1143
1346
H1
102
114
127
152
184
219
273
360
395
430
470
550
580
700
800
H2
107
125
152
178
300
330
398
495
580
625
670
698
840
1050
1100
E
/
/
/
/
/
/
116
116
171
171
257
257
257
150
83
F
/
/
/
/
/
/
350
350
420
420
400
400
400
410
660
W
230
400
400
650
1050
1050
600
600
800
800
800
800
800
800
800
Wt (kg)
12
16
22
35
58
74
205
322
460
576
864
1280
1600
3540
4500

CLAS300 Dimensions£®Flange dimensions refer to ASME B16.5 CLASS300£©

DN
2"
21/2"
3"
4"
5"
6"
8"
10"
12"
14"
16"
18"
20"
24"
28"
d1
51
64
76
102
127
152
203
254
305
337
387
438
489
591
686
L
RF
216
241
283
305
381
403
502
568
648
762
838
914
991
1143
1346
BW
216
241
283
305
381
457
521
559
635
762
838
914
991
1143
1346
H1
102
114
127
152
184
219
273
360
395
430
470
550
580
700
800
H2
107
125
152
178
300
330
398
495
580
625
670
698
840
1050
1100
E
/
/
/
/
/
/
116
116
171
171
257
257
257
150
83
F
/
/
/
/
/
/
350
350
420
420
400
400
400
410
660
W
230
400
400
650
1050
1050
600
600
800
800
800
800
800
800
800
Wt (kg)
15
24
30
55
87
118
255
370
533
640
1030
1542
2100
4200
5300

CLASS4O0 Dimensions£®Flange dimensions refer to ASME B16.5 CLASS400£©

DN
2"
21/2"
3"
4"
6"
8"
10"
12"
14"
16"
20"
24"
28"
d1
51
64
76
102
152
203
254
205
337
387
489
591
686
L
RF&BW
295
333
356
406
495
597
673
762
826
902
1054
1232
1397
RJ
295
333
359
410
498
600
676
765
829
905
1060
1241
1410
H1
114
124
133
159
250
294
395
445
500
530
660
800
900
H2
168
155
197
235
300
374
445
512
550
615
810
1010
1180
E
/
/
/
/
116
171
171
257
257
257
150
83
123
F
/
/
/
/
350
420
420
400
400
400
410
650
735
W
400
650
650
1050
600
800
800
800
800
800
800
800
800
Wt (kg)
23
35
49
91
192
355
640
880
1100
1540
2800
5300
5700

CLASS600 Dimensions£®Flange dimensions refer to ASME B16.5 CLASS600£©

DN
2"
21/2"
3"
4"
6"
8"
10"
12"
14"
16"
20"
24"
28"
d1
51
64
76
102
152
203
254
205
337
387
489
591
686
L
RF&BW
295
333
356
432
559
660
787
833
889
991
1194
1397
1549
RJ
295
333
359
435
562
664
791
841
892
994
1200
1407
1562
H1
114
124
133
159
250
294
395
445
500
530
660
800
900
H2
168
155
197
235
300
374
445
512
550
615
810
1010
1180
E
/
/
/
/
116
171
171
257
257
257
150
83
123
F
/
/
/
/
350
420
420
400
400
400
410
650
735
W
400
650
650
1050
600
800
800
800
800
800
800
800
800
Wt (kg)
35
38
55
102
232
390
710
960
1700
1970
3250
5500
6700

CLASS900 Dimensions
£®Flange dimensions refer to ASME B16.5 CLASS900£©

DN
2"
21/2"
3"
4"
6"
8"
10"
d1
51
64
76
102
152
203
254
L
RF&BW
368
419
381
457
610
737
838
RJ
371
422
384
460
613
740
841
H1
217
241
259
297
360
322
420
H2
126
158
191
216
270
394
502
E
/
116
116
116
171
171
257
F
/
350
350
350
420
420
400
W
650
600
600
600
800
800
800
Wt (kg)
50
60
80
125
270
540
930

CLASS1500 Dimensions£®Flange dimensions refer to ASME B16.5 CLASS1500£©

DN
2"
21/2"
3"
4"
6"
8"
d1
51
64
76
102
146
194
L
RF&BW
368
419
470
546
705
832
RJ
371
422
473
549
711
841
H1
126
158
191
216
296
378
H2
217
241
259
297
365
475
E
/
116
116
116
171
257
F
/
350
350
350
420
400
W
650
600
600
600
800
800
Wt (kg)
50
75
117
216
380
680