Wafer concentric butterfly valve features a cartridge type seat, streamlined disc and strong stem-to-disc connection for easy use in many industrial applications such as food and beverage, pulp and paper, chemical, mining, water treatment, power plants, etc.
Introducing the Wafer Butterfly Valve, the next-generation solution for efficient flow regulation and corrosion resistance in your projects!
With its innovative design, our Wafer Butterfly Valve outperforms other valves in the market, offering both exceptional performance and remarkable durability. Designed with precision engineering, this valve redefines industry standards and is ideal for various applications, including water, oil, and gas systems.
Key Features of Wafer Butterfly Valve:
Compact and Lightweight Design: With its slim and solid structure, the Wafer Butterfly Valve offers easy installation and minimal maintenance, reducing overall costs and disruptions.
Size Flexibility: Catering to various requirements, our Wafer Butterfly Valve is available in a wide range of sizes 1″-80″ DN25-DN2000
Quality Material: Constructed with top-grade materials, our valves are resistant to rust, corrosion, and chemical damages, prolonging their service life and enhancing overall performance. Stainless Steel 304, Stainless Steel 316, Stainless Steel 316L, Duplex 2507, Duplex 1.4529, Aluminum Bronze C95800, Nickel Bronze, Titanium
Superior Sealing Mechanism: Engineered for optimal performance, this valve features a bi-directional bubble-tight seal, ensuring zero leakage and maintaining the integrity of the valve and the system it serves. NBR, PTFE, EPDM sealing seat
Easy Operability: Designed to provide maximum efficiency, the Wafer Butterfly Valve can be easily controlled, both manually and actuator operated, allowing effortless management and high adaptability to various systems. Pneumatic Actuator, Electric Actuator, Hydraulic Actuator
In a world of ever-evolving valve technology, the Wafer Butterfly Valve sets new benchmarks with its unique combination of state-of-the-art design and uncompromising performance. This valve is designed to meet even the most stringent industry requirements, making it the reliable and cost-effective choice for professionals seeking a modern and advanced solution to their flow control challenges.
Experience the unparalleled flow control and durability offered by the Wafer Butterfly Valve in your systems. Whether you are a technical expert or new to the world of valves, our Wafer Butterfly Valve provides a user-friendly, high-performing solution that guarantees excellent flow control and extends operational life.
Don’t compromise on quality, performance, or reliability – choose the Wafer Butterfly Valve and unlock the full potential of your projects!
1: ISO5211 top flange together with stem square suitable for direct mounting of actuators
2: Stem anti-blowout design keep safety in field use
3: Dirtscraper prevents moisture penetrating into the shaft area
4:Multi-standard alignment holes suitable for various standard of flanges of EN1092 PN10, PN16, ASME B16.5 CLASS150, JIS B2239 10K, 16K, BS 10 Table D, Table E
5: Suitable for high pressure and full vacuum service due to the use of a cartridge seat design
6: No exposed pins or bolts for stem-to-disc connection
7: No need for flange gaskets
8: No risk of damage to the valve during installation in closed position
9: Bubble-tight shut of at full pressure rating
10: Large flow capacity and enough strength because of streamline disc design
11: Plug with O-ring sealing eliminates any leakage from the stem
PARTS LIST AND MATERIAL SPECIFICATION
TECHNICAL DATA
Body style
wafer
Nominal diameter
1″ – 80″ (DN25mm – DN2000mm)
Top flange
ISO5211
Operating pressure
16bar for DN50-DN300, 10bar for DN350-DN2000
Temperature range
-20 °C to + 140 °C (depending on pressure, medium and material)
Flange accommodation
EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN10/ PN16
JIS 5K/10K
Applications
Potable Water, Wastewater, Seawater, HVAC
Operation
Hand lever, gear box, pneumatic actuator, electric actuator
SIZE
A
B
C
D
E
F
d
G
H
L
WT(kg)
DN
INCH
50
2″
126
78
13.5
94.3
9
50
8
70
31
43
2
65
2 1/2″
134
84
13.5
107.6
9
50
8
70
45
46
2.5
80
3″
138
92
13.5
123.9
9
50
8
70
64
46
3
100
4″
167
114
13.5
157
11
70
10
90
91
52
4.5
125
5″
180
129
17.5
181.5
14
70
10
90
110
56
6
150
6″
203
144
17.5
212
14
70
10
90
146
56
7
200
8″
228
179
24.5
267.4
17
102
12
125
193
60
12
250
10″
266
216
25
323.6
22
102
12
125
241
68
17
300
12″
291
247
25
377.4
22
102
12
125
292
78
25
350
14″
332
273
30
425
27
125
14
150
329
78
41
400
16″
363
317
30
484
27
125
14
150
376
102
58
450
18″
397
348
39
537
36
140
18
175
425
114
80
500
20″
425
393
39
589.5
36
140
18
175
475
127
97
600
24″
498
453
49
693.1
46
165
22
210
573
154
169
700
28″
626
531
90
928
63.1
254
18
300
674
165
252
750
30″
660
564
90
984
63.1
254
18
300
727
165
290
800
32″
666
601
90
1061
63.1
254
18
300
771
190
367
900
36″
722
660
110
1170
74.7
254
18
300
839
203
465
1000
40″
806
728
120
1290
83.7
298
22
350
939
216
606
1100
44″
826
771
140
1404
94.7
298
22
350
1036
255
805
1200
48″
941
874
150
1511
104.7
298
22
350
1137
276
900
1400
56″
1000
940
175
1685
139.9
356
32
415
1351
279
1158
1600
64″
1155
1085
195
1930
160
356
32
415
1548
318
1684
1800
72″
1200
1170
195
2170
174.5
406
39
475
1703
356
2645
2000
80″
1363
1360
245
2345
199
406
39
475
1938
406
4000
FAQs
What is a wafer butterfly valve?
A wafer butterfly valve is a type of shut-off valve that uses a disc with a centrally located stem to enable flow through it. It is sometimes referred to as the “butterfly” because the disc resembles one, and its rotation provides an effective opening/closing mechanism for regulating systems containing liquids or gases.
The wafer butterfly valves are installed between two flanges and are designed for easy installation without need for extra parts or tools. The discs in such valves generally have holes which allow for easy adjustment, adding flexibility on when they can be used effectively in certain systems. This also makes them suitable where space is an issue, since they require minimal space compared to other types of valve design.
In terms of performance, wafer butterfly valves usually provide tight shut-off characteristics at low operating torques over a wide range of temperatures, sizes & pressure differences across the system which therefore increases their efficiency when used correctly within systems. They also offer superior corrosion resistance due to their nonmetallic construction allowing them work well with media containing corrosive elements such as seawater & wastewater facilities applications etc . In addition to this most models offer bubble tight sealing even under extreme conditions making them ideal choice especially in industries demanding high safety standards such as oil & gas industries where they are widely used during process control operations
All things considered, it can be said that despite having few drawbacks (such as its vulnerability against external forces), Wafer Butterfly Valves still remain popular amongst industry personnel due its convincing performance qualities along with cost effectiveness advantages – making it stand out from other available options in market!
How does a wafer butterfly valve work?
A wafer butterfly valve is a type of control valve that utilizes a circular rotary disc to regulate the flow of fluids such as air, water, steam and gas. The rotation of the disc allows for an adjustable opening or closing path in order to control the amount and rate of flow passing through the valve.
The mechanism consists mainly of four parts: body, stem, disk (or rotary element) and seat ring. The body is where all other components are held together and connected. The stem connects directly to the disk in order to turn it with its handle, allowing for adjustment of the throttle area size between closed and open positions. The disk also contains two or more holes which act as throttles allowing for precise regulation once open. Finally, seat ring provides sealing when closed by pressing against either sides on its perimeter depending on direction chosen during installation process – inside-out or outside-in mountings being possible according to design requirements from piping system standpoint.
How to install wafer butterfly valve？
Installing a wafer butterfly valve is relatively straightforward, though there are important safety considerations to keep in mind throughout the process. Before beginning, make sure you have all of the components that you need: wrench or socket set for tightening/loosening bolts, flange gasket and contact surface sealant if needed.
Step 1: Begin by installing the two end pieces (also called face seals) onto either side of the body of the valve. Make sure to fasten them securely with bolts using your wrench or socket set.
Step 2: If using a flange gasket, place it on top of both sides before moving on to Step 3. Flanges should also be coated with contact surface sealant at this stage in order to waterproof and reduce corrosion over time; allow any sealant used to dry fully before proceeding with installation.
Step 3: Install the handles onto each side of the valve body, taking care not to cross-thread them as you go along; then attach handles firmly but delicately (avoid overtightening).
Step 4: Attach actuator motor(s), if applicable – follow instructions provided by manufacturer for proper alignment and mounting requirements. Securely fasten any nuts or screws used for attachment purposes following completion of task.
Additionally, both pressure gauges and position indicators may be attached during installation depending on model type; refer specifically to product instructions provided prior to commencing work in these cases as well. Finally, thoroughly test your newly installed valve system for proper functioning prior to use!
What types of wafer butterfly valves are there?
There are generally two types of wafer butterfly valves commonly used in industrial applications: resilient-seated and metal-seated. Resilient seated butterfly valves operate with a flexible rubber seat which enables a tight shut off when the disc is in the closed position. They are designed to reduce operating torque, thus allowing quick shut offs without using excessive actuator power or size. Furthermore, they usually handle lower pressure than their metal-seated counterparts and provide reliable performance over time.
Metal-seated butterfly valves are designed for high pressure and temperature applications where superior sealing is needed due to their hard materials such as stainless steel or chrome alloys among others. The contact between the shoe and body causes a perfect seal under these conditions, however if misaligned they tend to have higher operating torques compared with resilient seating butterfly valves which can lead to leakage problems overtime.
Depending on service requirements, wafer butterfly valve can also have different configurations like single offset (reduced friction), double offset (for minimal flow rebound), concentric (combines both single & double) or triple offset designs providing greater safety against many potential failure modes like backseat blowout caused by an abrupt decrease of media velocity when reaching full closure reducing the risk of leaks during operation through increased security measures when dealing with hazardous media for instance such as vacuum tight sealing capabilities thus making it suitable for variety of operations within oil & gas industry among other sectors requiring particular attention about fluid dynamics under certain circumstances due his precision manufacturing process over traditional wedge gate designs for severe services conditions regarding fluid control .
