Q361F type PN1.6-PN2.5 fully welded ball valves are widely used in various fields. Its superior quality and high performance stability are unattainable by ordinary cast steel ball valves. The service life of fully welded ball valves is much longer than that of cast steel. Ball valves , fully welded ball valves are widely used in various types of pipeline equipment such as city gas, city heating, petrochemical industry, shipbuilding, steel, pressure regulating station, power plant and so on.
|
Serial number
|
name
|
material
|
Serial number
|
name
|
material
|
|
1
|
cap
|
ASTM A105
|
twenty one
|
Thrust bearing
|
PTFE
|
|
2
|
Valve body
|
ASTM A105
|
twenty two
|
Plain bearing
|
304 + PTFE
|
|
3
|
Sphere
|
ASTM A105 + ENP
|
twenty three
|
Upper support
|
ASTM A105
|
|
4
|
Anti-static spring
|
Assembly
|
twenty four
|
O-ring
|
VITON
|
|
5
|
Thrust bearing
|
PTFE
|
25
|
O-ring
|
VITON
|
|
6
|
Plain bearing
|
304 + PTFE
|
26
|
Y-shaped seal ring
|
VITON
|
|
7
|
Lower stem
|
ASTM A105
|
27
|
Fireproof mat
|
SS304 + Graphite
|
|
8
|
Bottom cover
|
ASTM A105
|
28
|
filler
|
graphite
|
|
9
|
Drain valve
|
ASTM A105 + ENP
|
29
|
Socket head cap screws
|
ASTM A193 B7
|
|
10
|
O-ring
|
VITON
|
30
|
Socket head cap screws
|
ASTM A193 B7
|
|
11
|
Fireproof mat
|
SS304 + Graphite
|
31
|
Stem
|
ASTM A182 F6a
|
|
12
|
Socket head cap screws
|
ASTM A193 B7
|
32
|
Cylindrical pin
|
35
|
|
13
|
Footrest
|
A3
|
33
|
Stud
|
ASTM A193 B7
|
|
14
|
Seat
|
PPL
|
34
|
Nuts
|
ASTM A194 2H
|
|
15
|
Valve seat fire cushion
|
SS304 + Graphite
|
35
|
Spring washer
|
65Mn
|
|
16
|
Spring support
|
ASTM A105
|
36
|
Land
|
ASTM A105
|
|
17
|
spring
|
17-7PH
|
37
|
Flat key
|
45
|
|
18
|
O-ring
|
VITON
|
38
|
turbine
|
ASTM A105-HZn
|
|
19
|
Seat support ring
|
ASTM A105 + ENP
|
39
|
Vent valve
|
ASTM A105-HZn
|
|
20
|
Plain bearing
|
304
|
|
|
|
|
DN
|
L (RF)
|
L (WE)
|
D1
|
D2
|
H1 (handle)
|
H1 (Turbo)
|
W (handle)
|
W (Turbo)
|
|
15
|
150
|
210
|
27
|
48
|
64
|
-
|
129
|
-
|
|
20
|
160
|
230
|
34
|
60
|
76
|
-
|
159
|
-
|
|
25
|
180
|
230
|
42
|
76
|
85
|
-
|
159
|
-
|
|
32
|
200
|
260
|
48
|
89
|
95
|
-
|
245
|
-
|
|
40
|
230
|
300
|
60
|
89
|
124
|
-
|
245
|
-
|
|
50
|
270
|
300
|
76
|
114
|
162
|
-
|
30
|
-
|
|
65
|
280
|
300
|
89
|
140
|
175
|
-
|
320
|
-
|
|
80
|
300
|
325
|
114
|
168
|
192
|
169
|
450
|
-
|
|
100
|
350
|
325
|
141
|
203
|
205
|
183
|
450
|
230
|
|
125
|
350
|
350
|
168
|
219
|
225
|
203
|
450
|
230
|
|
150
|
400
|
400
|
219
|
273
|
245
|
224
|
1000
|
230
|
|
200
|
502
|
521
|
273
|
351
|
285
|
262
|
1000
|
320
|
|
250
|
568
|
560
|
325
|
426
|
348
|
322
|
1500
|
350
|
|
300
|
648
|
635
|
377
|
508
|
|
355
|
|
350
|
|
DN
|
L (RF)
|
L (WE)
|
D1
|
D2
|
H1
|
H2
|
W
|
|
150
|
403
|
457
|
219
|
273
|
246
|
193
|
280
|
|
200
|
502
|
521
|
273
|
351
|
285
|
238
|
320
|
|
250
|
568
|
560
|
325
|
426
|
323
|
278
|
320
|
|
300
|
648
|
635
|
377
|
508
|
365
|
315
|
400
|
|
350
|
762
|
762
|
426
|
580
|
410
|
370
|
400
|
|
400
|
838
|
838
|
480
|
675
|
457
|
425
|
450
|
|
450
|
914
|
914
|
530
|
740
|
495
|
465
|
450
|
|
500
|
991
|
991
|
630
|
805
|
540
|
495
|
500
|
|
600
|
1143
|
1143
|
735
|
975
|
640
|
580
|
500
|
|
700
|
1346
|
1346
|
830
|
1130
|
715
|
660
|
500
|
|
800
|
1524
|
1524
|
930
|
1270
|
785
|
730
|
500
|
|
900
|
1727
|
1727
|
1036
|
1425
|
860
|
820
|
800
|
|
1000
|
1900
|
1840
|
1236
|
1625
|
970
|
920
|
800
|
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