Triple Offset Pneumatic Butterfly Valve

Body:  WCB, CF8,CF8M
Disc:  CF8,CF8M,CF3M
Seat:  UNS31803(duplex)+graphite
Connection:  Wafer,Flange
Size:  2″-80″
Pressure:  Class150,Class300
Flange standard: ASME B16.5 Class150,Class300; EN1092 PN16, PN25, PN40
Pneumatic actuator: Double acting,Single acting






    Description

    Pneumatic Triple Offset Butterfly Valves

    Introducing the Triple Offset Pneumatic Butterfly Valve, the perfect solution for reliable and efficient flow control in various industrial applications. This high-performance valve is designed with a triple offset disc that ensures bubble-tight shut-off and eliminates any rubbing between the disc and seal, minimizing wear and tear and extending the valve’s lifespan. Additionally, the pneumatic actuator provides precise and responsive control, allowing for fast and accurate adjustments in high-pressure and high-temperature systems. The valve body is constructed with robust materials, providing excellent durability and corrosion resistance even in harsh environments. With its low-maintenance design and easy installation, the Offset Pneumatic Butterfly Valve is an ideal choice for oil and gas, chemical processing, power generation, and other demanding industries where reliability and efficiency are paramount.

    GENERAL INFORMATION

    Flanged triple offset butterfly valves provides zero leakage through no-rubbing 90-degree rotation across a wide range of pressure and temperature conditions.

    Widely used in many industries such as Oil & Gas, Chemical & coal, petrochemical, desalination plants, waterworks, fossils, district heating, nuclear, Iron & Steel, Mining, automotive, shipyards, aerospace.

    FEATURES Triple Offset Butterfly Valves

    • ISO 5211 bracket for easy mounting of actuators
    • Triple offset and ellipsoidal sealing geometry
    • Bubble tight shut-off
    • Inherently firesafe by design
    • A metal seal ring in Duplex and a highly wear-resistant Stellite grade 21 seat ensure prolonged superior tightness
    • Single piece cast body with face to face dimensions to ISO5752, ASME B16.10 and API 609 double flanged short pattern, guarantees interchangeability with other valve types
    • Extensively hardened bearings, incorporating a standard reinforce, braided, flexible graphite bearing protector, ensure increased reliability
    • Blowout proof devices on shaft keep sure safety of shaft operating
    • Pin-less shaft to disc connection makes the valve convenient for parts replacement and reliable even under corrosion

    Pneumatic actuator

    action
    Double acting Failure to maintain
    Single acting normally closed Failure to close
    Single acting normally open Failure to open
    Optional accessory Solenoid valve
    limit switch box
    air filter relief pressure valve,
    E/P positioned
    manual device.

     

    Connection Double flange
    Size 3″-80″ for PN10,PN16,Class150; 3″-48″ for PN25,PN40,Class300; 3″-24″ for Class600
    Pressure PN10,PN16,PN25,PN40,Class150,Class300,Class600
    Flange standard ASME B16.5 Class150,Class300,Class600; EN1092 PN16,PN25,PN40
    Face to face ISO 5752, ASME B16.10, API609 Double flanged short pattern
    Pressure test API 598, ISO 5208 Rate A, ANSI B16.104(ANSI/FCI 70-2)Class Ⅵ
    Temperature -29°C to +538°C
    Operator Lever,Gear box,Pneumatic actuator,Electric actuator

    Triple Offset Butterfly Valves

    No. Part name Material
    1 Body WCB CF8M
    2a Disc WCB,CF8 CF8M
    2b Disc sealing UNS31803(duplex)+graphite
    2c Disc sealing retainer SS304 SS316
    2d Disc sealing retainer screw SS304 SS316
    3 Seat welded surface Stellite Gr.21
    4 Shaft 17-4 PHSS,1.4462
    5 Packing gland CF8
    6 Bottom cover Same as body
    7 Cover seal Graphite
    8 Thrust washer SS316
    9 Bracket WCB CF8M
    10 Retaining ring SS304
    11 Packing RPTFE, Graphite
    12 Packing ring SS316
    13 Bearing SS316+PTFE
    14 Thrust bearing SS316
    15 Key SS316
    16 Bolt SS304
    17 Bolt SS304
    18 Bolt SS304
    19 Nut SS304

    Triple Offset Butterfly Valves

    Triple Offset Butterfly Valves

    SIZE A B C D E Top Flange L WT(kg)
    Class150 PN10 PN16 PN25
    DN INCH Class150,PN10,PN16,PN25
    80 3″ 260 125 17.5 190 200 200 200 14 F07 114 30
    100 4″ 290 141 17.5 230 220 220 235 14 F07 127 40
    125 5″ 310 150 17.5 255 250 250 270 14 F07 140 45
    150 6″ 330 165 18.5 280 285 285 300 17 F10 140 50
    200 8″ 385 214 24.5 345 340 340 360 22 F10 152 85
    250 10″ 425 243 24.5 405 395 405 425 22 F10 165 120
    300 12″ 490 286 30 485 445 460 485 27 F12 178 160
    350 14″ 525 312 30 535 505 520 555 27 F12 190 195
    400 16″ 545 350 39 595 565 580 620 36 F14 216 255
    450 18″ 580 383 49 635 615 640 670 46 F16 222 310
    500 20″ 640 407 49 700 670 715 730 46 F16 229 390
    600 24″ 690 484 60 815 780 840 845 55 F25 267 565
    700 28″ 720 525 130 925 895 910 960 80 F30 292
    750 30″ 750 550 130 985 80 F30 318
    800 32″ 760 600 130 1060 1015 1025 1085 98 F30 318
    900 36″ 795 660 150 1170 1115 1125 1185 120 F35 330
    1000 40″ 815 720 180 1290 1230 1255 1320 130 F35 410
    1050 42″ 850 750 180 1345 150 F35 410
    1200 48″ 995 825 200 1510 1455 1485 180 F40 470
    SIZE A B C D E Top Flange L WT(kg)
    Class300 PN40
    DN INCH Class300,PN40
    80 3″ 260 100 17.5 210 200 14 F07 180 30
    100 4″ 290 124 17.5 255 235 14 F07 190 40
    125 5″ 330 144 18.5 280 270 17 F10 200 60
    150 6″ 350 150 24.5 320 300 22 F10 210 75
    200 8″ 415 204 30 380 375 27 F12 230 115
    250 10″ 455 238 39 445 450 36 F14 250 170
    300 12″ 490 268 39 520 515 36 F14 270 170
    350 14″ 545 294 49 585 580 46 F16 290 315
    400 16″ 575 320 60 650 660 55 F25 310 415
    450 18″ 660 341 60 710 685 55 F25 330 490
    500 20″ 700 383 80 775 755 75 F30 350 600
    600 24″ 785 442 80 915 890 75 F30 390 900
    700 28″ 800 590 150 1035 120 F35 430
    750 30″ 830 600 180 1090 130 F35 450
    800 32″ 860 720 200 1150 170 F40 470
    900 36″ 940 780 200 1270 180 F40 510
    1000 40″ 910 750 250 1240 200 F48 550
    1050 42″ 950 800 250 1290 210 F48 570
    1200 48″ 1000 850 250 1465 220 F48 630
    SIZE A B C D E Top Flange L WT(kg)
    Class600 PN63 PN100
    DN INCH Class600,PN63,PN100
    80 3″ 260 145 17.5 210 215 230 14 F07 180 50
    100 4″ 298 185 24.5 275 250 265 22 F10 190 70
    125 5″ 400 200 30 330 295 315 27 F12 200 90
    150 6″ 420 216 39 355 345 355 36 F14 210 125
    200 8″ 445 265 39 420 415 430 36 F14 230 200
    250 10″ 505 315 49 510 470 505 46 F16 250 315
    300 12″ 600 362 49 560 530 585 46 F16 270 435
    350 14″ 610 390 60 605 600 655 55 F25 290 485
    400 16″ 680 440 60 685 670 55 F25 310 685
    450 18″ 683 460 80 745 75 F30 330 815
    500 20″ 795 526 80 815 75 F30 350 1050
    600 24″ 885 623 940 F35 390 1600
    700 28″
    750 30″
    800 32″
    900 36″
    1000 40″
    1050 42″
    1200 48″


    FAQS

    What is a Triple Offset Butterfly Valves

    A triple-offset butterfly valve manufacturer is a type of valve that is designed to provide precise control over the flow of liquids or gases through a piping system. It is called a triple offset valve because it has three different points of offset in its design, which allows it to seal more effectively and operate more smoothly than other types of butterfly valves.

    Triple-offset butterfly valve is between the disc and the valve’s body. The disc is the part of the valve that rotates to open or close the flow of the fluid, and it is offset from the body of the valve to allow for a better seal when the valve is closed.

    The second offset is between the disc and the shaft of the valve. The post is the part of the valve that is connected to the handle or actuator, and it is offset from the disc to allow for better control and more precise operation of the valve.

    The third Ball Valve offset is between the disc and the seat of the valve. The heart is the part of the valve that the disc seals against when the valve is closed, and it is offset from the disc to allow for a better seal and more efficient operation. Overall, the triple offset design of a butterfly valve allows for more efficient and reliable flow control, making it ideal for use in various applications.

    What is a Triple Offset Butterfly Valves used for?

    Uses for butterfly valves include regulating the volumes/flows entering into pipe systems during start up operations; isolating areas within larger piping networks; aiding in preventing backflow; serving as check-valves when unexpected flow reversals occur; providing throttling action for modulating fluid flows rates into certain sections of piping systems (similarly applicable to hydraulic pumps); draining fluid out of units where gravity assisted drainage occurs; providing a shutoff option prior to maintenance work being carried out on system components downstream from the unit containing the butterfly valve itself.

    In addition to their various uses listed above, one primary advantage that butterfly valves offer over other types of isolation or control valves is their extremely compact size relative to how much performance they deliver

    • Caustic,
    • Corrosive,
    • Dry Chlorine,
    • Oxygen,
    • Seawater,
    • Sour Gas,
    • Steam,
    • Toxic
    • Ultra Pure Water,
    • Vacuum, and

    Industries

    • Chemical,
    • Food and Beverage,
    • HVAC,
    • Mining,
    • Oil and Gas,
    • Petrochemical,
    • Pharmaceutical,
    • Power Generation,
    • Pulp and Paper,
    • Refining,
    • Sugar Processing, and
    • Water Filtration.

    How do I choose a triple offset butterfly valve?

    Choosing a triple offset butterfly valve can seem daunting at first, but with the right knowledge and information, it’s an easy task. To find the right double eccentric butterfly valve for your application, you should consider several factors:

    Flow Characteristics – triple offset butterfly valve are designed to control flow rates from low to high levels. Since this type of valve has two seats instead of one, they offer better performance when controlling higher flow rates compared to other types of valves. When selecting a Double Eccentric Butterfly Valve, you’ll need to determine the appropriate size for your intended use and check that it meets any applicable standards (such as ASME or API).

    Installation Requirements – Taking into account where and how you plan on installing your Double Eccentric Butterfly Valve is important in making sure that installation is successful and efficient. If your installation site has limited space constraints then choosing a smaller model may be necessary – while also ensuring that its port configuration matches up with existing piping systems connected downstream or upstream from it will make things easier come time for installation

    Pressure Rating – The pressure rating provided by your chosen Double Eccentric Butterfly Valve should match up with the requirements needed for operation within its respective application/environment . Pressure ratings typically given in psi (Pounds per Square Inch) or bar(s), so be sure to familiarize yourself beforehand with what data points are included within those units before starting out on this part of selection process!

    Materials – Selecting the correct material is critical when selecting any type of valve due its direct impact on system life cycle costs as well as safety considerations; materials used can range from steel alloys such stainless 304L & CF8M depending on chemical compatibility / corrosion resistance requirements associated with particular system fluid being switched through them . Carefully consider these!

    Actuation Options– Whether manual operation (lever operated) or automated via actuation , having access to multiple sources available will let users choose whichever option best fits their needs; manual levers provide cost-effectiveness while electric actuators add convenience but can rack up additional costs over time due maintenance etc…

    Butterfly valve ASME ANSI CLASS300LB Flange size chart

    NPSDNODPCBBoltn-bolt
    1/2DN159566.5164
    3/4DN2011782.6194
    1DN2512488.9194
    11/4DN3213398.6194
    11/2DN40155114.322.54
    2DN50165127198
    21/2DN65190149.422.58
    3DN80210168.122.58
    31/2(DN90)229184.222.58
    4DN100254200.222.58
    5DN12527923522.58
    6DN150318269.722.512
    8DN200381330.225.512
    10DN250444387.428.516
    12DN300521450.83216
    14DN350584514.43220
    16DN400648571.53520
    18DN450711628.63524
    20DN500775685.83524
    22(DN550)8387434124
    24DN600914812.84124