Pneumatic ptfe lined butterfly valve

Body:  GGG40
Disc:  CF8M,1.4462,CF8M FEP lined,CF8 EPDM lined
Seat:  PTFE,FPM,EPDM,PU,NBR
Body style:  wafer
Nominal diameter:  2″ – 24″ (DN50mm – DN600mm)
Top flange:  ISO5211
Operating pressure:  16bar for DN50-DN200, 10bar for DN250-DN600
Flange accommodation:  EN 1092 PN 6/PN10/PN16,ASME Class 150,JIS 5K/10K
Pneumatic actuator:Double acting, Single acting







    Description

    Pneumatic ptfe lined butterfly valve

    Pneumatic pfa lined butterfly valves are ideal for applications involving increased temperatures and/or aggressive chemicals. The PTFE lining on the body and stem offers superior corrosion resistance by allowing for possible contact with media such as acids, alkalis and extreme temperatures without risking damage or wear. Moreover, its self-lubricating properties also ensure smoother functional operations compared to standard metal valves. Furthermore, pneumatic ptfe lined butterfly valves require less energy consumption while providing a higher level of controllability than manual operated valves. They can be used in a wide range of industrial process control applications such as shutoff, throttling or regulating service in oil refineries, chemical plants and water treatment units. Contact us to find the perfect lined ptfe butterfly valve for your system today!

    FEATURES

    • ISO5211 direct mounting pad for easy automation
    • Isolation height according to plant prescription
    • Dirtscraper prevents moisture penetrating into the shaft area
    • Three PTFE impregnated SS316L bearings are provided for precision alignment of the disc-shaft
    • 3 layers sealing system ensures environment protection
    • PTFE seat and rubber seat version interchangeable each other• PTFE-liner for chemically toxic and highly corrosive media, rubber liner for various of industry applications
    • Silicon rubber energized back behind PTFE seat makes the sealing between liner and disc stable and offer a wide range of temperature
    • One-piece disc-shaft design reduces the valve torque and increases Kv
    • PTFE or rubber lined disc design option avoids high cost by expensive metal in corrosive applications
    • Bubble-tight shut of at full pressure rating
    • Can be disassembled, material-specific recycling possible
    • Wave shape flange face design ensures the flange sealing of seat face not damaged by flange pressing, also avoids shrink of seat inside diameter because of flange pressing

    PARTS LIST AND MATERIAL SPECIFICATION

    No. Part name Material
    1 Body GGG40
    2 Disc/shaft one piece CF8M 1.4462 CF8M FEP lined CF8 EPDM lined
    3 Seat PTFE,FPM,EPDM,PU,NBR PTFE EPDM
    4 Seat Energizer SR
    5 Weather seal NBR
    6 Bearing PTFE impregnated SS316L
    7 Gland PTFE
    8 Screw SS304
    9 Belleville washer SS304
    10 Stuffing collar SS316
    11 O ring FPM
    12 V ring PTFE

    TECHNICAL DATA

    Body style wafer
    Nominal diameter 2″ – 24″ (DN50mm – DN600mm)
    Top flange ISO5211
    Operating pressure 16bar for DN50-DN200, 10bar for DN250-DN600
    Temperature range -20 °C to + 180 °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
    Operation Hand lever, gear box, pneumatic actuator, electric actuator

     

    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.
    SIZE A B C D E F d G H L WT(kg)
    DN INCH
    50 2″ 126 65 13.5 116 11 50 8 65 25 43 2
    65 2 1/2″ 138 79 13.5 136 11 50 8 65 59 46 3
    80 3″ 138 79 13.5 136 11 50 8 65 59 46 3
    100 4″ 167 97 17.5 170 14 70 10 90 86 52 5
    125 5″ 180 129 17.5 196 14 70 10 90 112 56 7
    150 6″ 203 142 18.5 227 17 70 10 90 140 56 8
    200 8″ 228 172 18.5 279 17 102 12 125 191 60 13
    250 10″ 266 213 24.5 336 22 102 12 125 241 58 22
    300 12″ 291 242 24.5 392 22 102 12 125 290 78 31
    350 14″ 332 262 30 445 27 125 14 150 331 78 44
    400 16″ 363 303.5 30 503 27 125 14 150 377 102 64
    450 18″ 397 324.5 39 553 36 140 18 175 425 114 86
    500 20″ 425 357 39 608 36 140 18 175 474 127 116
    600 24″ 498 419 49 717 46 165 22 210 570 154 179