Lug 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, FPM
Stem:         SS420, SS431
Body style:       FLug
Nominal diameter:            2″ – 80″ (DN50mm – DN2000mm)
Top flange:                          ISO5211
Operating pressure:          16bar for DN50-DN300, 10bar for DN350-DN2200
Flange accommodation:   EN 1092 PN 6/PN10/PN16,ASME Class,JIS 5K/10K







    Description

    Llug 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

    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,Suitable for high pressure and full vacuum service due to the use of a cartridge seat design
    5,Full rated unidirectional dead-end service is achieved by a lip designed in the lug body
    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

    lug butterfly valve Parts

    PARTS LIST AND MATERIAL SPECIFICATION

    NO.Part nameMaterial
    1BodyASTM A536 65-45-12, WCB, CF8M
    2DiscASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
    3SeatEPDM, NBR, FPM
    4StemSS420, SS431
    5Lower StemSS420, SS431
    6RetainerNylon for DN50-DN300, SS304 for DN350-DN2000
    7BearingRPTFE with Graphite on I.D.
    8Weather sealNBR
    9Weather sealNBR
    10PlugSteel galvanized for DN50-DN300, Cover plate for
    DN350-DN2000 material same as body with SS304 bolts
    11ScrewSS304

    TECHNICAL DATA

    Body styleFLug
    Nominal diameter2″ – 80″ (DN50mm – DN2000mm)
    Top flangeISO5211
    Operating pressure16bar for DN50-DN300, 10bar for DN350-DN2200
    Temperature range-20 °C to + 140 °C (depending on pressure, medium and material)
    Flange accommodationEN 1092 PN 6/PN10/PN16
    ASME Class 150
    AS 4087 PN10/ PN16
    JIS 5K/10K
    ApplicationsPotable Water, Wastewater, Seawater, HVAC
    OperationHand lever, gear box, pneumatic actuator, electric actuator

    DIMENSIONS (mm)

    lug butterfly valve size

    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

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