92/38, No.12 Street, Quarter 18, Binh Hung Hoa Ward, Binh Tan District, Ho Chi Minh City, Vietnam.

DK VALVE

Triple offset butterfly valve

Price: Contact

  • Model:
  • Trademark: DK VALVE
  • Origin: Korea
  • Triple offset butterfly valve

    Triple Offset Geometry

    ▪ 1st offset :

    The valve stem is offset behind the seat axis to allow complete sealing contact around the entire seat.

    ▪ 2nd offset :

    The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve.

    ▪ 3rd offset :

    The seat cone axis is offset from the shaft centerline to eliminate friction during closing and opening and to achieve uniform compressive sealing around the entire seat.
    With this geometry, seat seal interference is completely eliminated ensuring long sealing life. The result is torque seating, process pressure aided frictionless seal.
    The geometry allows the body seat to be used as the closed limit stop, aiding operator adjustment. The triple offset design is ideally suited to metal seated valves providing
    bubble-tight performance on high temperature, high pressure and fire safe application.

    Standard Specifications

    DESIGN

    ▪ API 609 Cat.B
    ▪ ASME B 16.34

    FACE-TO-FACE

    ▪ API 609 Cat. B
    ▪ Wafer and Lugged
    ▪ Double flange Short/Long

    FLANGE STANDARD

    ▪ ASME B 16.5/16.47
    ▪ BS 4504 / EN 1092-1
    ▪ JIS B2220
    ▪ Others on request

    PRESSURE RATING

    ▪ ASME B 16.34
    ▪ Class 150/300/600
    ▪ Class 900/1500

    NOMINAL DIAMETER

    ▪ 3” to 144”
    ▪ DN 80 to 3600

    OTHER OPTIONS

    ▪ Anti-static device
    ▪ Cryogenic design
    ▪ Others on request

    TESTING

    ▪ API 598
    ▪ ASME B 16.104 / FCI 70-2
    ▪ ISO 5208

    Applicable Materials

    Carbon Steel A105, A216 WCB / WCC / WC6 / WC9
    Low Temp. Carbon Steel A350 LF2, A352 LCB / LCC
    Austenitic Stainless Steel A182 F304 / F316, A351 CF8 / CF8M / CF3 / CF3M
    Duplex Stainless Steel A182 F51 / F53 / F55, A995 4A / 5A / 6A
    Special Alloy Inconel® 625(UNS N06625), 254SMO®(UNS S31254)
    Monel® K400 / 500 (UNS N04400 / N05500)

     

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