Manual Wafer Butterfly Valve
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Manual Wafer Butterfly Valve

Size: DN40-DN1000
Pressure: PN6, PN10, PN16 /150LB/5K,10K
Body material: cast iron, stainless steel

Disc material: cast iron, stainless steel
Valve seat: EPDM, NBR,VITON,Silicon Rubber,Teflon
Connection: Wafer type
Top flange: ISO5211
Operation: Lever,Gearbox
Availability:
Quantity:

A butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates.The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, so it induces a pressure drop, even when open.


The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.


Main Specifiaction



Size

Operate

type

Pressure Work temperature

Seal

material

Disc material Body material
Meduim
DN40-DN1000
Pneumatic actuator
PN6
-15℃-85℃ EPDM
Ductile iron SS304/316 Water
Electric actuator PN10 -25℃-150℃
PTFE SS304/316
WCB Oil
Manual hand lever
PN16
NBR
WCB

Aluminu

m alloy

Gas
Worm gear
ANSI150

VITON Aluminum brozen Ductile iron Powder

JIS5K/10K/16K






Main Dimension


DN
L
PN(10/16)
φB
H
H1 G*f/K
J
H2
φE
Z-φ
φD
φD1
φD2
φA N-M
40
42
110
4-16 65/90 193
60
12.6*9/11
1-3
27 50/70 4-7.5/10
101 76 48
50 42 125
4-16 65/90 193 60 12.6*9/11
1-3
27 50/70 4-7.5/10 101
76 48
65 45
145 4-16
65/90
212 70 12.6*9/11
1-3 27 50/70 4-7.5/10 117
89 62
80
45 160
8-16
65/90 232
82
12.6*9/11
1-3 27 50/70 4-7.5/10 127
103 77
100 52
180 8-16 90 280 101 16*11/11
1-5
27 70 4-10
157
135
98
125
55 210
8-16 90 302
117 18.9*13/14
1-5 27 70 4-10 181
159 121
150 55 240 8-20
90
330 129 18.9*13/14 1-5 27 70 4-10 214
188 148
200
60
295
8-20/12-20
120 419
166
22*16/17
1-5 40
102 4-12 266
238 200
250 66
350/355
12-20/12-24
120 482 195 28.5*22/22
1-8
45 102 4-12 318
292 248
300
76
400/410
12-20/12-24
150
553
236
31.6/22
1-8 50
102/125
4-12/14
374
344 299
350 76 460/470
16-20/16-24
150 635 267 31.6/22
1-8 50 102/125 4-12/14 436
375 331
400
86
515/525
16-24/16-27
197 709
309
33.3/27
1-10
64 125/140
4-14/18
488
439 387
450 105
565/585
20-24/20-27
197 750 328 38/27
1-12 64 140/165
4-18/22 539
490 438
500
130
620/650
20-24/20-30
197
840
360
41/36
1-12 64 165
4-22
594 535 489
600 151
725/770
20-27/20-33
276 1021
459
50.5/36
2-16
70
165 4-22
693
653
590
700 163
840
24-27/24-33
300
1140
520
60/46
2-18 82 254
8-18 804
744 692
800 188
950
24-30/24-36
300 1263
591
60/46
2-20
82 254 8-18
910
849 792
900 203
1050 28-30/28-36
300 1376
656
75/55
2-22
118
254 8-18 1008
947 861
1000 216 1160/1170
28-33/28-39
300 1522
722
85/55
2-25 148 254 8-18 1107
1053 961


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