Bi-Directional Zero Leakage Concentric Butterfly Valve
Design Features
Valve design to EN593; API609 etc.
Flange to EN 1092, BS 4504, ASME B16.1, ASME B16.5, AWWA C207
Face to face length to EN 558-1, API 609
● Simple and compact structure, low operating torque. 90 ° turn to open quickly.
● Valves are available in double flanged, Wafer, Lugged and U-section flange type.
● Replaceable valve seat , and rubber bonded valve seat by vulcanizing process(the hardness of liner 70-75 degree Shore A) are available.
● The certificate for suitability for use in contact with potable water at 50 o C from WRAS or equivalent will be submitted.
● The flow characteristics tend to be straight, with better adjustment performance.
● Self-lubricating bearing, with low friction coefficient and easy operation.
● Seals or Dry design having no wetness by line media flowing through valve.
● Multiple sealing design in shaft seal system, to ensure shaft no contact with service medium to achieve dry shaft.
● Stepped shaft design retained by a circlip to achieve blow-out proof shaft.
● The connection between shaft and disc is precisely processed to eliminate the linkage lag.
● And pinless two-piece shaft(one-piece available for request) design will ensure the valve shaft is completely isolated from the medium. Used for corrosive medium, common shaft material could be used instead of high anti-corrosive material so as to reduce the production cost.
● The disc edge is processed with spherical surface and polished to ensure low operating torque.
● The valve seat and body are positioned with single or double grooves to ensure no displacement and looseness during valve opening.
● The valve seat extended over the flange designed with a circular arc will accurate the positioning and be easy for replacement. No need of flange gasket during valve installation.
● ISO 5211 mounting flange to couple with all types of actuators.
● For operating mode, hand lever(wrench), manual gearbox with cap top or hand wheel or chain wheel, gearbox (high mechanical advantage) with electric mounting adaptor, electric, pneumatic.
Materials of component
|
Part no |
Part name |
Material |
|
|
1 |
Valve shaft | Stainless steel/Duplex SS | SS416,SS431,17-4PH,1.4462,1.4507 etc. |
|
2 |
Packing cap | Carbon steel/Stainless steel | Q235,SS304 |
|
3 |
O ring | EPDM,NBR,FPM,AU etc. | |
|
4 |
Shaft bush | Bronze, FRP, PTFE, SS304/316 + PTFE | |
|
5 |
Valve body | Ductile iron | GJS400-15,GJS500-7,65-45-12 |
| Carbon steel | WCB | ||
| Stainless steel | CF8, CF8M,CF3M | ||
|
6 |
Valve disc | Ductile iron | GJS400-15,GJS500-7,65-45-12 |
| Stainless steel/Duplex SS | CF8, CF8M,CF3M,2205,2207, 4A, 5A | ||
| Al-bronze | C954,C955,C958 | ||
|
7 |
Valve seat | EPDM/NBR(BUNA)/FKM(VITON)/SILICONE/PTFE/IIR/Hypalon etc. | |
|
8 |
Circlip | Carbon steel/Stainless steel | S235,SS304 |
|
9 |
End cover | Same to valve body | |
Note: The material will be designed and selected according to the actual working conditions or client’s special requirements.
★ Coating: epoxy/rilsan coating, total average thickness 300 micron 100% testing before delivery
★ Pressure test to EN12266-1/API598:
Leakage rate: Class A (Zero leakage) in both direction
100% testing before delivery
Dimensions
Dimensions for wafer & lug type

|
Size |
A |
B |
C |
h |
□E |
φS/J |
PN10 |
PN16 |
ANSI 150lb |
ISO 5211 |
||||||
|
PCD |
n-φd |
N-M |
PCD |
n-φd |
N-M |
PCD |
n-φd |
N-M |
top flange |
|||||||
|
40 |
65 |
120 |
33 |
14 |
9 |
φ110 |
4-φ19 |
4-M16 |
φ110 |
4-φ19 |
4-M16 |
φ98.4 |
4-φ16 |
4-1/2 |
F05 |
|
|
50 |
73 |
131 |
43 |
14 |
9 |
φ125 |
4-φ19 |
4-M16 |
φ125 |
4-φ19 |
4-M16 |
φ120.7 |
4-φ19 |
4-5/8 |
F05 |
|
|
65 |
78 |
147 |
46 |
14 |
9 |
φ145 |
4-φ19 |
4-M16 |
φ145 |
4-φ19 |
4-M16 |
φ139.7 |
4-φ19 |
4-5/8 |
F05 |
|
|
80 |
92 |
156 |
46 |
14 |
9 |
φ160 |
4-φ19 |
8-M16 |
φ160 |
4-φ19 |
8-M16 |
φ152.4 |
4-φ19 |
4-5/8 |
F05 |
|
|
100 |
109 |
169 |
52 |
18 |
11 |
φ180 |
4-φ19 |
8-M16 |
φ180 |
4-φ19 |
8-M16 |
φ190.5 |
4-φ19 |
8-5/8 |
F07 |
|
|
125 |
127 |
191 |
56 |
18 |
14 |
φ210 |
4-φ19 |
8-M16 |
φ210 |
4-φ19 |
8-M16 |
φ215.9 |
4-φ22.3 |
8-3/4 |
F07 |
|
|
150 |
141 |
214 |
56 |
18 |
14 |
φ240 |
4-φ23 |
8-M20 |
φ240 |
4-φ23 |
8-M20 |
φ241.3 |
4-φ22.3 |
8-3/4 |
F07 |
|
|
200 |
166 |
247 |
60 |
22 |
17 |
φ295 |
4-φ23 |
8-M20 |
φ295 |
4-φ23 |
12-M20 |
φ298.5 |
4-φ22.3 |
8-3/4 |
F10 |
|
|
250 |
203 |
283 |
68 |
22 |
22 |
φ350 |
4-φ23 |
12-M20 |
φ355 |
4-φ28 |
12-M24 |
φ362 |
4-φ25.4 |
12-7/8 |
F10 |
|
|
300 |
236 |
318 |
78 |
22 |
22 |
φ400 |
4-φ23 |
12-M20 |
φ410 |
4-φ28 |
12-M24 |
φ431.8 |
4-φ25.4 |
12-7/8 |
F12 |
|
|
350 |
272 |
327 |
78 |
22 |
22 |
φ460 |
4-φ23 |
16-M20 |
φ470 |
4-φ28 |
16-M24 |
φ476.3 |
4-φ28.6 |
12-1 |
F12 |
|
|
400 |
304 |
405 |
102 |
36 |
27 |
φ515 |
4-φ28 |
16-M24 |
φ525 |
4-φ31 |
16-M27 |
φ539.8 |
4-φ28.6 |
16-1 |
F14 |
|
|
450 |
335 |
409 |
114 |
36 |
27 |
φ565 |
4-φ28 |
20-M24 |
φ585 |
4-φ31 |
20-M27 |
φ577.9 |
4-φ31.8 |
16-1 1/8 |
F14 |
|
|
500 |
368 |
460 |
127 |
36 |
36 |
φ620 |
4-φ28 |
20-M24 |
φ650 |
4-φ34 |
20-M30 |
φ635 |
4-φ31.8 |
20-1 1/8 |
F14 |
|
|
600 |
428 |
516 |
154 |
46 |
36 |
φ725 |
4-φ31 |
20-M27 |
φ770 |
4-φ37 |
20-M33 |
φ749.3 |
4-φ35 |
20-1 1/4 |
F16 |
|
|
700 |
520 |
618 |
165 |
110 |
63.3/18 |
φ840 |
4-φ31 |
φ840 |
4-φ37 |
φ863.6 |
4-φ35 |
F25 |
||||
|
800 |
580 |
668 |
190 |
110 |
63.3/18 |
φ950 |
4-φ34 |
φ950 |
4-φ41 |
φ977.9 |
4-φ41.3 |
F25 |
||||
|
900 |
650 |
720 |
203 |
118 |
75/20 |
φ1050 |
4-φ34 |
φ1050 |
4-φ41 |
φ1085.8 |
4-φ41.3 |
F25 |
||||
|
1000 |
710 |
800 |
216 |
140 |
85/22 |
φ1160 |
4-φ37 |
φ1170 |
4-φ44 |
φ1200.2 |
4-φ41.3 |
F25 |
||||
|
1200 |
860 |
940 |
254 |
150 |
105/28 |
φ1380 |
4-φ41 |
φ1390 |
4-φ50 |
φ1422.4 |
4-φ41.3 |
F30 |
||||
Dimensions for flange type

|
Size |
A |
B |
C |
h |
□E |
φS/J |
PN10 |
PN16 |
ANSI 150lb |
ISO 5211 |
||||
|
PCD |
n-φd |
PCD |
n-φd |
PCD |
n-φd |
top flange |
||||||||
|
50 |
65 |
124 |
108 |
32 |
9 |
φ125 |
4-φ19 |
φ125 |
4-φ19 |
φ120.7 |
4-φ19 |
F05 |
||
|
65 |
70 |
134 |
112 |
32 |
9 |
φ145 |
4-φ19 |
φ145 |
4-φ19 |
φ139.7 |
4-φ19 |
F05 |
||
|
80 |
90 |
139 |
114 |
32 |
9 |
φ160 |
8-φ19 |
φ160 |
8-φ19 |
φ152.4 |
4-φ19 |
F05 |
||
|
100 |
100 |
150 |
127 |
32 |
11 |
φ180 |
8-φ19 |
φ180 |
8-φ19 |
φ190.5 |
8-φ19 |
F07 |
||
|
125 |
115 |
172 |
140 |
32 |
14 |
φ210 |
8-φ19 |
φ210 |
8-φ19 |
φ215.9 |
8-φ22.3 |
F07 |
||
|
150 |
130 |
181 |
140 |
32 |
14 |
φ240 |
8-φ23 |
φ240 |
8-φ23 |
φ241.3 |
8-φ22.3 |
F07 |
||
|
200 |
170 |
217 |
152 |
40 |
17 |
φ295 |
8-φ23 |
φ295 |
12-φ23 |
φ298.5 |
8-φ22.3 |
F10 |
||
|
250 |
200 |
254 |
165 |
40 |
22 |
φ350 |
12-φ23 |
φ355 |
12-φ28 |
φ362 |
12-φ25.4 |
F10 |
||
|
300 |
220 |
282 |
178 |
40 |
22 |
φ400 |
12-φ23 |
φ410 |
12-φ28 |
φ431.8 |
12-φ25.4 |
F12 |
||
|
350 |
245 |
330 |
190 |
40 |
22 |
φ460 |
16-φ23 |
φ470 |
16-φ28 |
φ476.3 |
12-φ28.6 |
F12 |
||
|
400 |
285 |
350 |
216 |
51 |
27 |
φ515 |
16-φ28 |
φ525 |
16-φ31 |
φ539.8 |
16-φ28.6 |
F14 |
||
|
450 |
335 |
393 |
222 |
51 |
27 |
φ565 |
20-φ28 |
φ585 |
20-φ31 |
φ577.9 |
16-φ31.8 |
F14 |
||
|
500 |
390 |
440 |
229 |
64 |
36 |
φ620 |
20-φ28 |
φ650 |
20-φ34 |
φ635 |
20-φ31.8 |
F14 |
||
|
600 |
435 |
535 |
267 |
70 |
36 |
φ725 |
20-φ31 |
φ770 |
20-φ37 |
φ749.3 |
20-φ35 |
F16 |
||
|
700 |
450 |
570 |
292 |
80 |
63.3/18 |
φ840 |
24-φ31 |
φ840 |
24-φ37 |
φ863.6 |
28-φ35 |
F25 |
||
|
800 |
565 |
700 |
318 |
80 |
63.3/18 |
φ950 |
24-φ34 |
φ950 |
24-φ41 |
φ977.9 |
28-φ41.3 |
F25 |
||
|
900 |
620 |
760 |
330 |
110 |
75/20 |
φ1050 |
28-φ34 |
φ1050 |
28-φ41 |
φ1085.8 |
32-φ41.3 |
F25 |
||
|
1000 |
705 |
820 |
410 |
150 |
85/22 |
φ1160 |
28-φ37 |
φ1170 |
28-φ44 |
φ1200.2 |
36-φ41.3 |
F25 |
||
|
1200 |
810 |
924 |
470 |
150 |
105/28 |
φ1380 |
32-φ41 |
φ1390 |
32-φ50 |
φ1422.4 |
44-φ41.3 |
F30 |
||
|
1400 |
1000 |
1020 |
530 |
160 |
135/36 |
φ1590 |
36-φ44 |
φ1590 |
36-φ50 |
φ1651 |
48-φ47.6 |
F35 |
||
Dimensions for U-flange type

|
Size |
A |
B |
C |
h |
□E |
φS/J |
PN10 |
PN16 |
ANSI 150lb |
ISO 5211 |
||||||
|
PCD |
n-φd |
N-M |
PCD |
n-φd |
N-M |
PCD |
n-φd |
N-M |
top flange |
|||||||
|
50 |
73 |
131 |
43 |
14 |
9 |
φ125 |
4-φ19 |
4-M16 |
φ125 |
4-φ19 |
4-M16 |
φ120.7 |
4-φ19 |
4-5/8 |
F05 |
|
|
65 |
78 |
147 |
46 |
14 |
9 |
φ145 |
4-φ19 |
4-M16 |
φ145 |
4-φ19 |
4-M16 |
φ139.7 |
4-φ19 |
4-5/8 |
F05 |
|
|
80 |
92 |
156 |
46 |
14 |
9 |
φ160 |
8-φ19 |
4-M16 |
φ160 |
8-φ19 |
4-M16 |
φ152.4 |
4-φ19 |
4-5/8 |
F05 |
|
|
100 |
109 |
169 |
52 |
18 |
11 |
φ180 |
8-φ19 |
4-M16 |
φ180 |
8-φ19 |
4-M16 |
φ190.5 |
8-φ19 |
4-5/8 |
F07 |
|
|
125 |
127 |
191 |
56 |
18 |
14 |
φ210 |
8-φ19 |
4-M16 |
φ210 |
8-φ19 |
4-M16 |
φ215.9 |
8-φ22.3 |
4-3/4 |
F07 |
|
|
150 |
141 |
214 |
56 |
18 |
14 |
φ240 |
8-φ23 |
4-M20 |
φ240 |
8-φ23 |
4-M20 |
φ241.3 |
8-φ22.3 |
4-3/4 |
F07 |
|
|
200 |
170 |
247 |
60 |
22 |
17 |
φ295 |
8-φ23 |
4-M20 |
φ295 |
12-φ23 |
4-M20 |
φ298.5 |
8-φ22.3 |
4-3/4 |
F10 |
|
|
250 |
203 |
283 |
68 |
22 |
22 |
φ350 |
12-φ23 |
4-M20 |
φ355 |
12-φ28 |
4-M24 |
φ362 |
12-φ25.4 |
4-7/8 |
F10 |
|
|
300 |
236 |
318 |
78 |
22 |
22 |
φ400 |
12-φ23 |
4-M20 |
φ410 |
12-φ28 |
4-M24 |
φ431.8 |
12-φ25.4 |
4-7/8 |
F12 |
|
|
350 |
272 |
330 |
78 |
22 |
22 |
φ460 |
16-φ23 |
4-M20 |
φ470 |
16-φ28 |
4-M24 |
φ476.3 |
12-φ28.6 |
4-1 |
F12 |
|
|
400 |
304 |
405 |
102 |
36 |
27 |
φ515 |
16-φ28 |
4-M24 |
φ525 |
16-φ31 |
4-M27 |
φ539.8 |
16-φ28.6 |
4-1 |
F14 |
|
|
450 |
335 |
409 |
114 |
36 |
27 |
φ565 |
20-φ28 |
4-M24 |
φ585 |
20-φ31 |
4-M27 |
φ577.9 |
16-φ31.8 |
4-1 1/8 |
F14 |
|
|
500 |
390 |
460 |
127 |
36 |
36 |
φ620 |
20-φ28 |
4-M24 |
φ650 |
20-φ34 |
4-M30 |
φ635 |
20-φ31.8 |
4-1 1/8 |
F14 |
|
|
600 |
435 |
535 |
154 |
46 |
36 |
φ725 |
20-φ31 |
4-M27 |
φ770 |
20-φ37 |
4-M33 |
φ749.3 |
20-φ35 |
4-1 1/4 |
F16 |
|
|
700 |
520 |
618 |
165 |
110 |
63.3/18 |
φ840 |
24-φ31 |
4-M27 |
φ840 |
24-φ37 |
4-M33 |
φ863.6 |
28-φ35 |
4-1 1/4 |
F25 |
|
|
800 |
580 |
700 |
190 |
110 |
63.3/18 |
φ950 |
24-φ34 |
4-M30 |
φ950 |
24-φ41 |
4-M36 |
φ977.9 |
28-φ41.3 |
4-1 1/2 |
F25 |
|
|
900 |
650 |
760 |
203 |
118 |
75/20 |
φ1050 |
28-φ34 |
4-M30 |
φ1050 |
28-φ41 |
4-M36 |
φ1085.8 |
32-φ41.3 |
4-1 1/2 |
F25 |
|
|
1000 |
715 |
820 |
216 |
140 |
85/22 |
φ1160 |
28-φ37 |
4-M33 |
φ1170 |
28-φ44 |
4-M39 |
φ1200.2 |
36-φ41.3 |
4-1 1/2 |
F25 |
|
|
1200 |
860 |
940 |
254 |
150 |
105/28 |
φ1380 |
32-φ41 |
4-M36 |
φ1390 |
32-φ50 |
4-M45 |
φ1422.4 |
44-φ41.3 |
4-1 1/2 |
F30 |
|
|
1400 |
1150 |
1750 |
279 |
200 |
135/36 |
Φ1590 |
36-φ44 |
4-M39 |
Φ1590 |
36-φ50 |
4-M45 |
Φ1651 |
48-φ47.6 |
4-1 3/4 |
F35 |
|
|
1500 |
1000 |
1090 |
381 |
200 |
150/36 |
Φ1700 |
36-φ44 |
4-M39 |
Φ1710 |
36-φ57 |
4-M52 |
Φ1759 |
52-φ47.6 |
4-1 3/4 |
F35 |
|
|
1600 |
1305 |
1870 |
318 |
200 |
150/40 |
Φ1820 |
40-φ50 |
4-M45 |
Φ1820 |
40-φ57 |
4-M52 |
Φ1875 |
52-φ47.6 |
4-1 3/4 |
F35 |
|
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