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            JIS Butterfly Valve

Property specification

Purpose and characteristic

D373H-10K, 20K, D343H-10,20K

Main configuration characteristic of D373H-10K,20K and D343H-10K,20K series of butterfly valve is composed of wafer and flange three eccentric seal, seat gasket use two configurations of elastic seal and soft hard compatible multiple layers seal, reliable hermetic capability, so as to ensure disc can't touch sealing seat when it operation. solve the problem of sealing seat burden unequally, prolong service life, with advantage of high temperature resistant, wearable, antisepsis etc. I thas been widely utilized in petroleum, chemical industry and industrial environmental protection water treatment, high building construction, water supplying and draining pipe etc.

Adoption standard

Design standard: API 609-83

Flange connection dimension: JISB2212 JIS B2213 HUS B214

Structure length: JIS B2002-1987

Pressure test: JIS B2003-1987

Drive modality

Handle, worm wheel, pneumatic drive, electric drive.

Main technology parameter

Nominal diameter
DN (mm)
830W
830L
2"~36"
2"~36"
Nominal pressure
PN(MPa)
10K
20K

Ps(MPa)

Test pressure

Shell test
1.5
3.0
seal test
1.1
2.2
Appropriate medium
Water, steam. oil, seawater.
Appropriate temperatuer
-29~425°C

Material for main parts

Parts name
Material
Body
WCB,304,316,316SS,CF8M
Disc
WCB,304,316,316SS,CF8M
Stem
316,2Cr13,1Cr18Ni9Ti
Seal ring
316,Fluorine plastic
Packing
Flexible graphite, fluorine plastic

D373H-10K, 20KJIS D373H-10K, 20K Series

Nominal
diameter
Structure length (standard)
External dimension (consult)
Connection dimension (standard)
H
D373H
D673H
D973H
10K
20K
mm
inch
L
H1
A1
B1
H2
A2
B2
H3
A3
B3
D1
z-d
D1
z-d
50
2
43
112
350
180
200
625
245
72
530
250
255
120
4-19
120
8-19
65
21/2
46
115
370
180
200
625
245
72
530
250
255
140
4-19
140
8-19
80
3
49
120
380
180
200
645
245
72
565
250
255
150
8-19
160
8-23
100
4
56
138
420
180
200
675
355
92
600
250
255
175
8-19
185
8-23
125
5
64
164
460
180
200
715
355
92
640
250
255
210
8-23
225
8-25
150
6
70
175
555
270
280
800
355
92
705
300
315
240
8-23
260
12-25
200
8
70
208
605
270
280
850
250
170
775
300
315
290
12-23
305
12-25
250
10
76
243
680
270
280
925
250
170
945
300
315
355
12-25
380
12-27
300
12
83
283
800
380
420
1035
450
220
1070
300
315
400
16-25
430
16-27
350
14
92
310
835
380
420
1070
450
220
1140
300
315
445
16-25
480
16-33
400
16
102
340
915
450
470
1190
450
220
1210
300
315
510
16-27
540
16-33
450
18
114
380
960
480
490
1250
650
280
1335
575
714
565
20-27
605
20-33
500
20
127
410
1020
480
490
1290
650
280
1415
575
714
620
20-27
660
20-33
600
24
154
470
1225
480
490
1455
850
380
1605
656
810
730
24-33
770
24-39
700
28
165
550
1355
640
660
1585
850
380
1844
656
810
840
24-33
900
24-48
800
32
190
640
1470
640
660
1700
1250
380
2040
656
810
950
28-33
1030
24-56
900
36
203
710
1545
750
860
1965
1250
380
2255
785
863
1050
28-33
1140
28-56
1000
40
216
770
1795
850
900
2015
1250
380
2380
785
863
1160
28-39
1200
48
254
890
1965
850
900
2250
1250
380
2640
785
863
1380
32-39

D343H-10K, 20KJIS D343H-10K, 20K Series

Nominal
diameter
Structure length (standard)
External dimension (consult)
Connection dimension (standard)
H
D343H
D643H
D943H
10K
20K
mm
inch
Brief
Long
H1
A1
B1
H2
A2
B2
H3
A3
B3
D
D1
z-d
D
D1
z-d
50
2
108
150
112
350
180
200
605
245
72
530
250
255
155
120
4-19
65
21/2
112
170
115
370
180
200
625
245
72
530
250
255
175
140
4-19
155
120
8-19
80
3
114
180
120
380
180
200
645
245
72
565
250
255
185
150
8-19
175
140
8-19
100
4
127
190
138
420
180
200
675
355
92
600
250
255
210
175
8-19
200
160
8-23
125
5
140
200
164
460
180
200
715
355
92
640
250
255
250
210
8-23
225
185
8-23
150
6
140
210
175
555
270
280
800
355
92
705
300
315
280
240
8-23
270
225
8-25
200
8
152
230
208
605
270
280
850
250
170
775
300
315
330
290
12-23
305
260
12-25
250
10
165
250
243
680
270
280
925
250
170
945
300
315
400
355
12-25
350
305
12-25
300
12
178
270
283
800
380
420
1035
450
220
1070
300
315
445
400
16-25
430
380
12-27
350
14
190
290
310
835
380
420
1070
450
220
1140
300
315
490
445
16-25
480
430
16-27
400
16
216
310
340
915
450
470
1190
450
220
1210
300
315
560
510
16-27
540
480
16-33
450
18
222
330
380
960
480
490
1250
650
280
1335
575
714
620
565
20-27
605
540
16-33
500
20
229
350
410
1020
480
490
1290
650
280
1415
575
714
675
620
20-27
675
605
20-33
600
24
267
390
470
1225
480
490
1455
850
380
1605
656
810
795
730
24-33
730
660
20-33
700
28
292
430
550
1355
640
660
1585
850
380
1844
656
810
905
840
24-33
845
770
24-39
800
32
318
470
640
1470
640
660
1700
1250
380
2040
656
810
1020
950
28-33
995
900
24-48
900
36
330
510
710
1545
850
900
1865
1250
380
2255
785
863
1120
1050
28-33
1140
1030
24-56
1000
40
410
550
770
1795
850
900
2015
1500
580
2380
785
863
1235
1160
28-39
1250
1140
28-56
1200
48
470
630
890
1965
850
900
2226
1500
580
2640
785
863
1465
1380
32-39

Attention: Above tow sorts such as wafer, flange, driving mode such as manual, worm wheel, pneumatic, and electric, user should specify when ordered.

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