Double flanged butterfly valve features a bonded liner extending over the flanges. The double flange design is suitable for high pressure loading and for use in heavy industry, shipbuilding, severe vacuum applications and water treatment industry like potable water, water treatment and wastewater applications.
The double flanged butterfly valve represents a flexible and high-performance solution for fluid control applications. The precision-engineered valve features top-quality materials to deliver exceptional performance alongside durability and user-friendly operation.
Material & Specifications
The manufacturing process of Flange Butterfly Valve uses strong materials which provide both durability and corrosion resistance. The WCB, CF8M, DI and CI materials are used to make the butterfly flange valve body. The disc is made from CF8M, CF8, 2507, and 1.4529 materials to provide you with a wide range of options to meet your requirements. The flange butterfly valve seats are available in EPDM, NBR, VITON and PTFE materials to meet the different requirements of fluid control systems.
Product Function
This advanced valve system serves multiple functions, such as:
Fluid Control: Precise regulation of fluid flow within pipes and channels
Switch Control: Seamless switching between fluid flow lines and process streams
Modulating Control: Accurate adjustment of fluid flow rates for optimal process control
ISO5211 Top Flange
The ISO5211 top flange together with a stem heat design enables direct mounting of actuators. The design enables straightforward integration with your current fluid control systems while removing the requirement for additional adapters or couplings.
No Exposed Pins or Bolts
The stem-to-disc connection features a secure and streamlined design. The design eliminates exposed pins and bolts which reduces leakage and corrosion risks to achieve optimal performance and longer service life.
Our butterfly valve flange type offers flexibility through its compatibility with pneumatic and electric actuators. The compatibility feature enables you to select the best actuation method for your requirements while maintaining perfect operational performance.
FEATURES
1,ISO5211 top flange together with stem heat suitable for direct mounting of actuators
2,Stem anti-blowout design keep safety in field use
3,Bonded seat protects the body and shaft out of contact with medium
4,No exposed pins or bolts for stem-to-disc connection
5,Single flange mounting is possible
6,Can be installed in any desired position
7,Bubble-tight shut off at full pressure rating
8,Large flow capacity and enough strength
PARTS LIST AND MATERIAL SPECIFICATION
NO.
Part name
Material
1
Body
ASTM A536 65-45-12, WCB, CF8M
Bonded with NBR or EPDM
-20 °C to + 140 °C (depending on pressure, medium and material)
Flange accommodation
EN 1092 PN 6/PN10/PN16
ASME Class 150AS 4087 PN10/ PN16JIS 5K/10K
Applications
Potable Water, Wastewater, Seawater, HVAC
Operation
Hand lever, gear box, pneumatic actuator, electric actuator
DIMENSIONS (mm)
SIZE
A
B
C
D
E
F
n
d
G
J
L
WT(kg)
DN
INCH
50
2″
142
80
13.5
165
9
50
4
8
70
15
108
9
65
2 1/2″
155
89
13.5
185
9
50
4
8
70
15
112
10
80
3″
161
95
13.5
200
9
50
4
8
70
17
114
12
100
4″
180
114
13.5
229
11
70
4
10
90
17
127
16
125
5″
193
127
17.5
254
14
70
4
10
90
19
140
24
150
6″
205
139
17.5
285
14
70
4
10
90
19
140
29
200
8″
250
175
24.5
343
17
102
4
12
125
21
152
39
250
10″
282
203
25
406
22
102
4
12
125
23
165
60
300
12″
326
242
25
483
22
102
4
12
125
24
178
82
350
14″
358
267
30
533
27
125
4
14
150
24
190
108
400
16″
380
301
30
597
27
125
4
14
150
28
216
145
450
18″
422
381
39
640
36
140
4
18
175
33
222
183
500
20″
479
387
39
710
36
140
4
18
175
40
229
230
600
24″
562
457
49
840
46
165
4
22
210
40
267
303
700
28″
560
465
95
910
63.35
254
8
18
300
40
292
410
750
30″
610
508
95
984
63.35
254
8
18
300
43
308
552
800
32″
620
519
95
1025
63.35
254
8
18
300
43
318
610
900
36″
692
576
130
1125
75
254
8
18
300
46
330
750
1000
40″
735
640
130
1255
85
254
8
22
300
50
410
945
1100
44″
813
735
150
1355
85
254
8
22
300
53
450
1120
1200
48″
917
783
150
1485
105
298
8
22
350
57
470
1350
1400
56″
1000
925
200
1685
120
356
8
32
415
60
530
1700
1500
60″
1050
950
200
1820
140
356
8
32
415
78
570
2000
1600
64″
1150
1045
200
1930
140
356
8
32
415
65
600
2500
1800
72″
1260
1156
280
2130
160
406
8
40
475
70
670
3500
2000
80″
1363
1350
280
2345
160
406
8
40
475
75
760
4000
2200
88″
1500
1430
300
2555
180
483
12
40
560
85
636
4500
FAQs
What is a flanged butterfly valve?
A flanged butterfly valve is a type of flow control device commonly used in water supply systems, wastewater treatment facilities, and other industrial process applications. It consists of a flat disc mounted to the end of a spindle that is rotated by an actuator. The disc has a circular hole cut into it which can open or close depending on the direction of rotation.
What are the flange types of butterfly valve?
What are the flange types of butterfly valve?
Wafer type butterfly valve: This type of butterfly valve is designed to fit between two pipes or other fittings with the same size and rating.
Lugged type butterfly valves: These have lugs that extend from the body to connect with separate mounting bolts which keep the valve securely closed when tightened down.
Flanged end butterfly valves: This particular type of flanged end is most often seen on industrial pipelines and vessels due to its robust nature and excellent sealing capabilities when compared with conventional wafer designs.
What is a single flange butterfly valve?
A single flange butterfly valve is a type of control valve that uses a circular disc – or the ‘butterfly’ – to regulate the flow rate of a fluid. This type of valve can be used as an isolation, actuation or throttling device for many industrial applications. The unique construction of the single flange design provides several advantages over other types of valves.
What is a double flange butterfly valve?
A double flange butterfly valve is a type of rotary disc valve used to regulate the flow of liquids and gases. It consists of two concentric discs with matching grooves encased in an outer body. The inner disc, also known as the “butterfly” rotates around its own axis to open or close off portions of the pipe that is connected to it. When fully opened, the butterfly allows for maximum flow through the pipeline – making it ideal for applications requiring high-flow rates and low pressure drops across valves.
