Note: For valves with PN1.6, 2.5 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-13~1-14.
Valves with PN1.6, 2.5 (MPa) have the same opening height as that of 150LB valves, as shown in the table. Reference weight is
given otherwise
Nominal Pressure
Nominal diameter
Face-to-face dimensions
Flange connection dimensions
RF Sealing surface
Opening height
(kg) Reference weight
NPS
DN
L
D
K
n-L
C
d
f1
H
Class 300
11/2
40
190
155
114.3
4-22
19.1
73.0
2
640
45
2
50
216
165
127.0
8-18
20.7
92.1
2
650
50
21/2
65
241
190
149.2
8-22
23.9
104.8
2
690
70
3
80
283
210
168.3
8-22
27.0
127.0
2
750
80
4
100
305
255
200.0
8-22
30.2
157.2
2
800
100
5
125
381
280
235.0
8-22
33.4
185.7
2
910
180
6
150
403
320
269.9
12-22
35.0
215.9
2
1000
210
8
200
419
380
330.2
12-26
39.7
269.9
2
1160
250
10
250
457
445
387.4
16-30
46.1
323.8
2
1350
420
12
300
502
520
450.8
16-33
49.3
381.0
2
1620
590
14
350
762
585
514.4
20-33
52.4
412.8
2
1820
870
16
400
838
650
571.5
20-36
55.6
469.9
2
1930
1180
18
450
914
710
628.6
24-36
58.8
533.4
2
2150
1380
20
500
991
775
685.8
24-36
62.0
584.2
2
2350
1980
24
600
1143
915
812.8
24-42
68.3
692.2
2
3060
2380
28
700
1346
920
857.2
36-36
87.4
787
2
3400
3300
32
800
1524
1055
977.9
32-42
101.6
902
2
4400
6400
36
900
1727
1170
1089
32-45
101.6
1010
2
--
--
Note: For valves with 10.0 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-17.
Valves with PN10.0 (MPa) have the same opening height as that of 600LB valves, as shown in the table. Reference weight is
given otherwise.
ote: For valves with PN4.0,6.3 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-16~1-16.
Valves with PN4.0,6.3 (MPa) have the same opening height as that of 300LB valves, as shown in the table. Reference weight is
given otherwise.
Pressure rating is 600LB flange dimensions is according to ASME B16.5 standards;
Length of the structure are adopted to ASME B16.10, API6D standards, as shown in Table 1-20.
ominal Pressure
Nominal diameter
Face-to-face dimensions
Flange connection dimensions
RF Sealing surface
Opening height
(kg) Reference weight
NPS
DN
L
D
K
n-L
C
RF
RJ
H
RF
RJ
d
f1
P
E
Class 600
11/2
40
241
241
155
114.3
4-22
22.3
73.0
7
90.5
6.35
650
60
2
50
292
295
165
127.0
8-18
25.4
92.1
7
108
7.92
650
70
21/2
65
330
333
190
149.2
8-22
28.6
104.8
7
127
7.92
710
95
3
80
356
359
210
168.3
8-22
31.8
127.0
7
146
7.92
765
110
4
100
432
435
275
215.9
8-26
38.1
157.2
7
175
7.92
820
180
5
125
508
511
330
266.7
8-30
44.5
185.7
7
210
7.92
960
270
6
150
559
562
355
292.1
12-30
47.7
215.9
7
241
7.92
1050
330
8
200
660
664
420
349.2
12-33
55.6
269.9
7
302
7.92
1250
620
10
250
787
791
510
431.8
16-36
63.5
323.8
7
356
7.92
1450
980
12
300
838
841
560
489.0
20-36
66.7
381.0
7
413
7.92
1720
1360
14
350
889
892
605
527.0
20-39
69.9
412.8
7
457
7.92
2040
1720
16
400
991
994
685
603.2
20-42
76.2
469.9
7
508
7.92
2150
2150
18
450
1092
1095
745
654.0
20-45
82.6
533.4
7
575
7.92
2320
2980
20
500
1194
1200
815
723.9
24-45
88.9
584.2
7
635
9.52
2650
3400
24
600
1397
1407
940
838.2
24-51
101.6
692.2
7
749
11.13
3150
4700
Zhejiang DECA Control Valve Meter Co., Ltd., a High-tech Enterprise in Zhejiang Province, specializes in designing, developing, producing and selling control valves, including control valves, gate valves, ball valves, butterfly valves and other special valves. Our company is a first-tier supplier of SINOPEC, an approved material supplier of CNPC, an approved supplier of CNOOC, an approved material and equipment supplier of CNAF, an approved supplier of CHEMCHINA, and a network member of National Chemical Automation Design Center.
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