Lug Concentric Butterfly Valves  ★★★★
  • A24
  • Series A24 lug 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. Full rated unidirectional dead-end service is achieved by a lip designed in the lug body.

    FEATURES

    • ISO5211 top flange together with stem square suitable for direct mounting of actuators
    • Stem anti-blowout design keep safety in field use
    • Dirtscraper prevents moisture penetrating into the shaft area
    • Suitable for high pressure and full vacuum service due to the use of a cartridge seat design
    • Full rated unidirectional dead-end service is achieved by a lip designed in the lug body
    • No exposed pins or bolts for stem-to-disc connection
    • No need for flange gaskets
    • No risk of damage to the valve during installation in closed position
    • Bubble-tight shut of at full pressure rating
    • Large flow capacity and enough strength because of streamline disc design
    • Plug with O-ring sealing eliminates any leakage from the stem

    Connection LUG
    Nominal diameter DN50-DN2000
    Operating pressure 16bar for DN50-DN300,10bar for DN350-DN2000
    Flange
    accommodation
    DN50-DN300:EN1092 PN10/16,ASME B16.5 Class150,JIS B2239 10K/16K,BS10 Table D/E
    DN350-DN2000:EN1092 PN10/16,ASME B16.5 Class150,BS10 Table D/E
    Face to face EN558 Series 20, API 609 Table 1
    Top flange ISO 5211
    Tightness check ISO 5208 Category 3, API 598 Table 5
    Temperature range -40°C to +180°C (Depending on pressure, medium and material)
    Operation Hand lever, gear box, pneumatic actuator, electric actuator



    No. Part name Material
    1 Body ASTM A536 65-45-12, WCB, CF8M
    2 Disc ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
    3 Seat EPDM, NBR, FPM
    4 Stem SS420, SS431
    5 Lower Stem SS420, SS431
    6 Retainer Nylon for DN50-DN300, SS304 for DN350-DN2000
    7 Bearing RPTFE with Graphite on I.D.
    8 Weather seal NBR
    9 Weather seal NBR
    10 Plug Steel galvanized for DN50-DN300, Cover plate for DN350-DN2000
    material same as body with SS304 bolts
    11 Screw SS304


    SIZEABCDEFdGHJLWT(kg)
    DNINCH
    502"1267813.51179508703134432.8
    652 1/2"1348413.51319508704536463.7
    803"1389213.51769508706436465.1
    1004"16711413.5206117010909140526.9
    1255"18012917.52361470109011044569.3
    1506"20314417.525814701090146445610.5
    2008"22817924.53211710212125193506017.4
    25010"266216253952210212125241576828.1
    30012"291247254612210212125292667840
    35014"332273305112712514150329627855
    40016"3633173058027125141503768410285
    45018"39734839630361401817542594114114
    50020"425393397003614018175475110127144
    60024"498453498234616522210573120154227
    70028"6265319092863.12541830067454165342
    75030"6605649098463.12541830072754165400
    80032"66660190106163.12541830077160190485
    90036"722660110117074.72541830083960203605
    100040"806728120129083.72982235093960216776
    110044"826771140140494.729822350103650255985
    120048"9418741501511104.7298223501137622761190
    140056"10009401751685139.9356324151351622791380
    160064"115510851951930160356324151548653182054
    180072"120011701952170174.5406394751703703563075
    200080"136313602452345199406394751938754064500