Eccentric Butterfly

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    RMI

    Butterfly Valve DubexDN 150 - DN 4000

    Pentair reserves the right to change the contents without notice RMISB-0001-EN-1306

    The Dubex is a double flanged, triple eccentric resilient seated

    valve design for services in the water industry like:

    - drinking water pump station and transportation/distribution

    - waste water effluent and treatment plants

    - reservoirs, circulating water systems- desalination plants

    - cooling water systems (power plants, general industry)

    CertificationKIWA, KTW, PED/CE, ATEX.

    AWWA, NSF 61 on applied materials

    WCR/NSF

    Technical dataPressure (bar) : 16 bar pressure: till DN 2200

    larger sizes: contact factory

    Temperature (C) : -20 to +104

    Flange

    accommodation : ISO flange PN 10, PN 16,

    PN 25 (standard); otherinternational standards on

    request

    Drilling : ISO 2084

    (other drillings on request)

    Features Triple eccentric design:

    1st offset: center line of the resilient disc seal is

    off set from the center line of the shafts.

    2nd offset: the center line of the shaft is offset

    from the pipe.

    3rd offset: the Dubex body seat landing surface

    has the shape of an oblique cone with theground surface perpendicular to one side of the

    cone.

    Resilient seal firmly integrated in disc for

    tight shut off performance.

    Fully adjustable resilient disc seal.

    In-line replaceable and re-adjustable resilient

    disc seal.

    Standard body seating surface ductile iron

    with Resin lining (Epasfill). Alternative seating

    surfaces such as stainless steel are available on

    request.

    Vibration proof disc pins installed perpendicular

    on the flow direction.

    Axial bottom shaft bearing carrying the discweight when installed with shaft in vertical

    position and ensuring accurate centering of the

    disc assembly.

    Self adjusting V-shaped shaft packing available.

    Reversed V-shaped packing for vacuum

    applications.

    Open brackets for packing access and

    adjustments are available on request.

    Self lubricating bearings consisting of PTFE

    lining on carbon steel bushings. Alternative

    bushing materials are available on request.

    Horizontal or vertical shaft mounting.

    Low head loss, suitable for throttling services.

    Face-to-face: Sizes DN 150-2000:

    ISO 5752, table 4 - flanged long.

    Sizes DN 2100-3000:

    ISO 5752, table 4 - flanged short.

    Up to DN 4000: manufacturers standard.

    Clockwise closing, optional anti clockwise

    closing.

    Dry shaft option available.

    Suitable for manual gear, electric, hydraulic and

    pneumatic actuation.

    Hydraulic drop weight drive for pump

    protection system available.

    Hydrostatic seat testing on 1.1x working

    pressure. Body shell strength test 1.5x working pressure.

    www.pentair.com/valves

    DN 3000 valve shown

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    Butterfly Valve DubexDN 150 - DN 4000

    Pentair reserves the right to change the contents without notice page 2

    DN 1800 valve shown with epoxy resin internal

    lining (Epasfill)

    No rubbing between disc seal and body seat

    Specific advantages of the triple eccentric design

    - Torque closing: more torque results in improved tightness.

    - Closing torque is in direct relation with the shut off pressure, which results in smaller actuator

    selections at lower pressures.

    - Virtually no rubbing from the resilient seal on the seating surface. This enhances the life time

    expectation of the valve.

    - Large diameter valves are normally in open position. Sediments can therefore settle on thebody seating surface. Due to the specific geometry these sediments will be whipped off during

    closing, improving sealing performance.

    - The resilient disc seal is adjustable, facilitating easy maintenance.

    - The resilient disc seal is replaceable in line.

    3rd eccentricity

    2nd eccentricity

    Retaining seal

    Body

    Body seat ring

    Disc seal

    Disc

    point of rotation

    1st eccentricity

    Disc seal

    Basic configuration, stainless steel

    Body external surface : two pack epoxy paint

    Body internal surface : two pack epoxy paint

    Body seat ring : stainless steel

    Disc seal retaining ring : stainless steelDisc : ductile iron, two pack

    epoxy paint

    Lined configuration, stainless steel

    Body external surface : two pack epoxy paint

    Body internal surface : rubber lined

    Body seat : ductile iron, rubber lined

    Disc seal retaining ring : stainless steel

    Disc : ductile iron, rubber lined

    Basic lined configuration

    Body external surface : two pack epoxy paint

    Body internal surface : rubber lined

    Body seat : ductile iron, rubber lined

    Disc seal retaining ring : ductile iron, rubber lined

    Disc : ductile iron, rubber lined

    Basic configuration

    Body external surface : two pack epoxy paint

    Body internal surface : two pack epoxy paint

    Body seat : ductile iron, epoxy resin lined

    Disc sea retaining ring : ductile iron, two pack epoxy paint

    Disc : ductile iron, two pack epoxy paint

    Notes

    Paint: dry layer thickness of 150 m, NSF 61

    approved.

    Rubber lining: natural rubber (Ebonite), with

    standard thickness of .3 mm, and a Shore

    D hardness of 75. Other linings available on

    request.

    Other configurations available on request.

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    150 210 105 0 142 F07 35 25 142 F07 35 25 142 F07 35 25 162 F07 35 30 50

    200 230 115 0 186 F10 42 30 186 F10 42 30 186 F10 42 30 196 F10 42 35 70

    250 250 125 49 218 F12 52 35 218 F12 52 35 218 F12 52 35 228 F12 52 40 90

    300 270 135 106 254 F12 52 40 254 F12 52 40 264 F12 52 45 264 F12 52 45 110

    350 290 145 209 292 F14 60 45 292 F14 60 45 292 F14 60 45 304 F14 60 50 170

    400 310 155 240 310 F14 60 45 310 F14 60 45 330 F14 60 50 330 F14 60 50 190

    450 330 165 288 336 F14 60 50 336 F14 60 50 360 F16 75 60 360 F16 75 60 240

    500 350 175 341 384 F16 75 55 384 F16 75 55 390 F16 75 60 390 F16 75 60 285

    600 390 195 438 436 F16 75 60 436 F16 75 60 460 F25 105 70 460 F25 105 70 450

    700 430 215 526 470 F25 105 70 470 F25 105 70 538 F25 105 80 538 F25 105 80 610

    750 450 225 577 506 F25 105 70 506 F25 105 70 584 F25 110 90 584 F25 105 90 720

    800 470 235 628 568 F25 105 80 568 F25 105 80 608 F30 105 90 608 F30 130 90 830

    900 510 255 724 638 F30 115 80 638 F30 115 80 688 F30 115 100 688 F30 130 100 1050

    1000 550 275 818 688 F30 115 90 688 F30 115 90 748 F35 150 120 748 F35 165 120 1435

    1100 590 295 915 738 F30 130 100 738 F30 130 100 828 F35 165 120 828 F35 150 1203 1515

    1200 630 315 1000 808 F35 165 100 808 F35 165 100 848 F35 165 120 878 F35 150 1403 1830

    1300 670 335 1088 868 F35 165 120 868 F35 165 120 898 F40 190 140 - - - - 2412

    1400 710 355 1175 918 F35 165 120 918 F35 165 120 978 F40 190 140 - - - - 2995

    1500 750 375 1271 994 F40 190 140 994 F40 190 140 1042 F40 190 160 - - - - 3675

    1600 790 395 1357 1046 F40 190 140 1046 F40 190 140 1092 F48 210 160 - - - - 4290

    1800 870 435 1546 1172 F40 165 1603 1172 F40 165 1603 1212 F48 210 1803 - - - - 5250

    2000 950 475 1723 1272 F48 210 180 1272 F48 210 180 1332 F48 190 2003 - - - - 6245

    2100 790 395 1912 1342 F48 210 180 1342 F48 210 180 1402 F48 190 2003 - - - - 7100

    2200 830 415 2007 1412 F48 200 1803 1412 F48 200 1803 1452 F60 190 2203 - - - - 7955

    2400 910 455 2369 1458 F48 200 1803 1532 F60 200 2003 - - - - - - - - 9960

    2500 950 475 2496 1522 F48 200 1803 1602 F60 200 2003 - - - - - - - - 11400

    2600 990 495 2555 1572 F48 200 1803 1652 F60 225 2203 - - - - - - - - 13300

    2700 1030 515 2652 1622 F60 200 2003 1702 F60 260 220 - - - - - - - - 14700

    2800 1070 535 2749 1692 F60 225 2003 1752 F60 260 240 - - - - - - - - 15700

    3000 1150 575 2974 1800 F60 225 2203 1860 F60 330 240 - - - - - - - - 18100

    Butterfly Valve DubexDN 150 - DN 4000

    Pentair reserves the right to change the contents without notice page 3

    Top view

    Actuator flange

    - Drawn is size DN 1200

    - Flange drillings are according

    ISO 7005 (PN 10, PN 16, PN 25)

    - Other flange types on request

    Valve dimensions

    Face to PN6-flanges/rating PN10-flanges/rating PN16-flanges/rating PN25-flanges/rating

    Size Face1) Actuator Shaft Actuator Shaft Actuator Shaft Actuator Shaft Approx

    DN (A) D D1 Q2) C flange F G C flange F G C flange F G C flange F G Mass

    [mm] [mm] [mm] [mm] [mm] [-] [mm] [mm] [mm] [-] [mm] [mm] [mm] [-] [mm] [mm] [mm] [-] [mm] [mm] [Kg]

    2 keys(see note 3)

    Notes

    1) Sizes DN 150-2000: face-to-face ISO 5752 -

    table 4 - flanged long series1) Sizes DN 2100-3000: length = 0.4x size - 50

    ( ISO 5752 - table 4 - flanged short series)

    2) Q is the minimum allowable inside diameter

    of connecting pipe without any clearance

    3) Some valve sizes have a double keyway

    (see 3) in table)

    Contact factory for blank or not listed values.

    Contact factory for alternative flanges and

    ratings.

    Lens shape up to DN 2200

    Flow through shape disc above DN 2200

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    150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1100

    10 37 65 102 147 200 261 331 408 588 800 918 1045 1322 1632 1975

    20 73 131 204 294 400 522 661 816 1175 1600 1836 2090 2645 3265 3950

    30 137 244 381 549 747 976 1235 1524