▣ STANDARD
BUTTERFLY VALVE TORQUE
*** SEAT DESIGN : 1. CARTRIDGE TYPE
*** SEAT : EPDM, BUNA-N
| ACTUAL TORQUE : N.m |
(unit : N.m) |
|
ACTUAL TORQUE : lbf.inchs |
(unit : lbf.inch) |
| SIZE |
3bar |
10bar |
16bar |
|
SIZE |
3Bar |
10Bari |
16Bar |
| 50A |
2 INCH |
16 |
42 |
42 |
|
50A |
2 INCH |
124 |
367 |
367 |
| 65A |
2 1/2 |
29 |
42 |
42 |
|
65A |
2 1/2 |
254 |
367 |
367 |
| 80A |
3 |
29 |
42 |
55 |
|
80A |
3 |
254 |
367 |
480 |
| 100A |
4 |
42 |
42 |
67 |
|
100A |
4 |
367 |
367 |
593 |
| 125A |
5 |
67 |
67 |
74 |
|
125A |
5 |
593 |
593 |
649 |
| 150A |
6 |
71 |
94 |
110 |
|
150A |
6 |
621 |
824 |
971 |
| 200A |
8 |
118 |
151 |
215 |
|
200A |
8 |
1039 |
1332 |
1896 |
| 250A |
10 |
303 |
370 |
453 |
|
250A |
10 |
2675 |
3273 |
4006 |
| 300A |
12 |
383 |
459 |
523 |
|
300A |
12 |
3386 |
4063 |
4627 |
| 350A |
14 |
337 |
800 |
1521 |
|
350A |
14 |
2961 |
7076 |
13385 |
| 400A |
16 |
461 |
1802 |
1991 |
|
400A |
16 |
4047 |
15948 |
17506 |
| 450A |
18 |
619 |
2028 |
2676 |
|
450A |
18 |
5445 |
17950 |
23542 |
| 500A |
20 |
766 |
2214 |
3305 |
|
500A |
20 |
6737 |
19595 |
29076 |
| 600A |
24 |
1237 |
5436 |
5324 |
|
600A |
24 |
10872 |
48107 |
46847 |
| ACTUAL TORQUE : kgf.m |
(unit : kgf.m) |
| SIZE |
3kgf.m |
10kgf.m |
16kgf.m |
| 50A |
2 INCH |
2 |
5 |
5 |
| 65A |
2 1/2 |
3 |
5 |
5 |
| 80A |
3 |
3 |
5 |
6 |
| 100A |
4 |
5 |
5 |
7 |
| 125A |
5 |
7 |
7 |
8 |
| 150A |
6 |
8 |
10 |
12 |
| 200A |
8 |
12 |
16 |
22 |
| 250A |
10 |
31 |
38 |
47 |
| 300A |
12 |
39 |
47 |
54 |
| 350A |
14 |
34 |
82 |
156 |
| 400A |
16 |
49 |
184 |
203 |
| 450A |
18 |
64 |
207 |
275 |
| 500A |
20 |
78 |
227 |
337 |
| 600A |
24 |
128 |
554 |
544 |
*** SEAT DESIGN : 2. STANDARD
BOOT TYPE
*** SEAT : EPDM, BUNA-N
| ACTUAL TORQUE : N.m |
(unit : N.m) |
|
ACTUAL TORQUE : lbf.inch |
(unit : lbf.inch) |
| SIZE |
10bar |
16bar |
|
SIZE |
145psi |
255psi |
| 50A |
2 INCH |
34 |
75 |
|
50A |
2 INCH |
294 |
294 |
| 65A |
2 1/2 |
34 |
75 |
|
65A |
2 1/2 |
294 |
310 |
| 80A |
3 |
34 |
75 |
|
80A |
3 |
294 |
500 |
| 100A |
4 |
64 |
76 |
|
100A |
4 |
587 |
660 |
| 125A |
5 |
71 |
102 |
|
125A |
5 |
621 |
790 |
| 150A |
6 |
71 |
102 |
|
150A |
6 |
621 |
903 |
| 200A |
8 |
121 |
160 |
|
200A |
8 |
1073 |
1410 |
| 250A |
10 |
336 |
433 |
|
250A |
10 |
2967 |
4502 |
| 300A |
12 |
405 |
530 |
|
300A |
12 |
3585 |
5077 |
| 350A |
14 |
1172 |
1521 |
|
350A |
14 |
10307 |
13385 |
| 400A |
16 |
1532 |
1991 |
|
400A |
16 |
13475 |
17506 |
| 450A |
18 |
2060 |
2676 |
|
450A |
18 |
18115 |
23542 |
| 500A |
20 |
2543 |
3305 |
|
500A |
20 |
22368 |
29076 |
| 600A |
24 |
4098 |
5324 |
|
600A |
24 |
49051 |
46847 |
| ACTUAL TORQUE : kgf.m |
(unit : kgf.m) |
| SIZE |
10kg/㎠ |
16kg/㎠ |
| 50A |
2 INCH |
4 |
4 |
| 65A |
2 1/2 |
6 |
6 |
| 80A |
3 |
4 |
6 |
| 100A |
4 |
7 |
8 |
| 125A |
5 |
8 |
10 |
| 150A |
6 |
8 |
11 |
| 200A |
8 |
13 |
17 |
| 250A |
10 |
34 |
45 |
| 300A |
12 |
42 |
55 |
| 350A |
14 |
121 |
156 |
| 400A |
16 |
156 |
203 |
| 450A |
18 |
211 |
275 |
| 500A |
20 |
259 |
337 |
| 600A |
24 |
419 |
544 |
|
| *NOTE |
| |
All torques shown on the chart were derived
from test data using water at 5℃.
For torques using dry gases, multiply these numbers by 1.6.
Above table has additional 30% safety factor to average net torque. |
*** TEFLON SEAT
| ACTUAL TORQUE : N.m |
(unit : N.m) |
|
ACTUAL TORQUE : lb.ft |
(unit : lb.ft) |
| SIZE |
11bar |
|
SIZE |
165psi |
| 50A |
2 INCH |
19 |
|
50A |
2 INCH |
13 |
| 65A |
2 1/2 |
25 |
|
65A |
2 1/2 |
19 |
| 80A |
3 |
51 |
|
80A |
3 |
38 |
| 100A |
4 |
51 |
|
100A |
4 |
38 |
| 125A |
5 |
103 |
|
125A |
5 |
808 |
| 150A |
6 |
145 |
|
150A |
6 |
808 |
| 200A |
8 |
281 |
|
200A |
8 |
1395 |
| 250A |
10 |
358 |
|
250A |
10 |
3858 |
| 300A |
12 |
637 |
|
300A |
12 |
47070 |
*** Flanged Type Butterfly Valve
| ACTUAL TORQUE : N.m |
|
|
(unit : N.m) |
|
ACTUAL TORQUE : lb.ft |
|
(unit : lb.ft) |
| SIZE |
3bar |
10bar |
16bar |
20bar |
|
SIZE |
43psi |
142psi |
228psi |
285psi |
| 50A |
2 INCH |
10 |
10 |
10 |
10 |
|
50A |
2 INCH |
7 |
7 |
7 |
7 |
| 65A |
2 1/2 |
15 |
15 |
15 |
15 |
|
65A |
2 1/2 |
11 |
11 |
11 |
11 |
| 80A |
3 |
25 |
25 |
25 |
25 |
|
80A |
3 |
18 |
18 |
18 |
18 |
| 100A |
4 |
29 |
29 |
29 |
29 |
|
100A |
4 |
22 |
22 |
22 |
22 |
| 125A |
5 |
29 |
44 |
49 |
59 |
|
125A |
5 |
22 |
33 |
36 |
43 |
| 150A |
6 |
54 |
59 |
64 |
69 |
|
150A |
6 |
40 |
43 |
47 |
51 |
| 200A |
8 |
98 |
103 |
118 |
118 |
|
200A |
8 |
72 |
76 |
87 |
87 |
| 250A |
10 |
118 |
137 |
157 |
157 |
|
250A |
10 |
87 |
101 |
116 |
116 |
| 300A |
12 |
167 |
167 |
172 |
172 |
|
300A |
12 |
123 |
123 |
127 |
127 |
| 350A |
14 |
199 |
693 |
900 |
1109 |
|
350A |
14 |
147 |
511 |
663 |
817 |
| 400A |
16 |
272 |
906 |
1177 |
1448 |
|
400A |
16 |
200 |
668 |
867 |
1067 |
| 450A |
18 |
366 |
1218 |
1583 |
1949 |
|
450A |
18 |
270 |
898 |
1167 |
1436 |
| 500A |
20 |
453 |
1504 |
1955 |
2406 |
|
500A |
20 |
334 |
1108 |
1441 |
1773 |
| 600A |
24 |
731 |
2424 |
3150 |
3876 |
|
600A |
24 |
539 |
1786 |
2322 |
2857 |
|