wafer butterfly valve

Body:     ASTM A536 65-45-12, WCB, CF8M
Disc:      ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
Seat:      EPDM,NBR,FRM.PTFE
Body style:    wafer
Nominal diameter:    2″ – 80″ (DN50mm – DN2000mm)
Top flange:    ISO5211






    Description

    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

    wafer butterfly valve

    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 .

    Table A flange size for butterfly valve

    NPSDNODPCBBoltn-bolt
    1/2DN159567144
    3/4DN2010073144
    1DN2511583144
    11/4DN3212087144
    11/2DN4013598144
    2DN50150114184
    21/2DN65165127184
    3DN80185146184
    31/2(DN90)205165184
    4DN100215178184
    5DN125255210184
    6DN150280235184
    8DN200335292188
    10DN250405356228
    12DN300455406228
    14DN350525470268
    16DN4005805212612
    18DN4506405842616
    20DN5007056412616
    22(DN550)7606993016
    24DN6008257563016
    26(DN650)8457813016
    28DN7008708063016
    30(DN750)9458833020
    32DN80010059403020
    34(DN850)10309653020
    36DN900110510413024
    40DN1000118011183024
    48DN1200141513533028
    56DN1400170016153632
    64DN1600191018253632
    72DN1800211020193936

    Table D flange size for butterfly valve

    NPSDNODPCBBoltn-bolt
    1/2DN159567144
    3/4DN2010073144
    1DN2511583144
    11/4DN3212087144
    11/2DN4013598144
    2DN50150114184
    21/2DN65165127184
    3DN80185146184
    31/2(DN90)205165184
    4DN100215178184
    5DN125255210188
    6DN150280235188
    8DN200335292188
    10DN250405356228
    12DN3004554062212
    14DN3505254702612
    16DN4005805212612
    18DN4506405842612
    20DN5007056412616
    22(DN550)7606993016
    24DN6008257563016

    DIN PN10 flange size for butterfly valve

    NPSDNODPCBBoltn-bolt
    3/8DN109060144
    1/2DN159565144
    3/4DN2010575144
    1DN2511585144
    11/4DN32140100184
    11/2DN40150110184
    2DN50165125184
    21/2DN65185145188
    3DN80200160188
    4DN100220180188
    5DN125250210188
    6DN150285240228
    8DN200340295228
    10DN2503953502212
    12DN3004454002212
    14DN3505054602216
    16DN4005655152616
    18DN4506155652620
    20DN5006706202620
    24DN6007807253020
    28DN7008958403024
    32DN80010159503324
    36DN900111510503328
    40DN1000123011603628
    48DN1200145513803932
    56DN1400167515904236
    64DN1600191518204840
    72DN1800211520204844
    80DN2000232522304848

    JIS 10K flange size for butterfly valve

    NPSDNODPCBBoltn-bolt
    3/8DN109065154
    1/2DN159570154
    3/4DN2010075154
    1DN2512590194
    11/4DN32135100194
    11/2DN40140105194
    2DN50155120194
    21/2DN65175140194
    3DN80185150198
    31/2(DN90)195160198
    4DN100210175198
    5DN125250210238
    6DN150280240238
    7(DN175)3052652312
    8DN2003302902312
    9(DN225)3503102312
    10DN2504003552512
    12DN3004454002516
    14DN3504904452516
    16DN4005605102716
    18DN4506205652720
    20DN5006756202720
    22(DN550)7456803320
    24DN6007957303324
    26(DN650)8457803324
    28DN7009058403324
    30(DN750)9709003324
    32DN80010209503328
    34(DN850)107010003328
    36DN900112010503328
    40DN1000123511603928
    44DN1100134512703928
    48DN1200146513803932