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Cixi Fly Pipe Equipment Co.,ltd
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API 6A Expanding Gate Valve/Slab Gate Valve

  • Product Item：Z43H/Y
  • SIZE RANGE: 1-13/16″~7-1/16″
  • WORKING PRESSURE: 2000~15000 PSI
  • DESIGN STANDARDS: API 6A
  • MATERIAL CLASS: AA~HH
    • API 6A EXPANDING SLAB GATE VALVES , API 6A expanding gate valve , slab gate valve , 4130 slab gate valve
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    Description

    API 6A Expanding Gate Valve/Slab Gate Valve

    TYPICAL ADVANTAGES

    •Negligible Pressure Drop
    •Self - Relieving
    •Double Block and Bleed performances
    •Equalized Bore (as required/operated)
    •Possibility of reverse acting and
    equalized bore for fail closed operation
    •Double seal upstream by piston effect, down-stream with floating obturator
    •Superior Seal Per formances (Bubble Tight)
    •Suitable for all types of fluids (including abrasive fluids)
    •Suitable for ESDV/BDV applications and Pig Traps
    •Extremely flexible actuation with or without stem ejection assistance
    •Robust Construction
    •Full In-Line maintainability
    •Fire Safe construction

    Stem/Stem seal
    The stem is designed with a threaded-in T bar allowing relative motions of the gate under line pressure. The stem seal uses braided graphite gaskets ensure sealing integrity. Stem sealant injection system is achieved through a por t located on the bonnet. In case of leakage through the stem seal it is possible to inject the sealant through the stem packing release valve.

    Seat
    Seats are ENP coated and are provided with thermoplastic soft inser t on their face.
    A "double face seal" effect is obtained due to metallic contact between the seat and the gate, thus increasing the reliability of the valve. Metal-to-metal seating is available for abrasive ser vice. In such case gate and seat faces are coated with HVOF Tungsten Carbide coating.

    Fire-safe design
    Flanged End Expanding Gate Valves is available in the API 6FA fire-tested design. Fire-tests have been witnessed and cer tified by independent authorities. RAYS Fire tested gate valves offer the highest resistance against fire. The body seal is a spiral wound graphite/AISI 316 gasket and the stem seal is a die-formed/braided graphite packing. The stem incorporates the back seat feature to allow stem seal re-packing with valve in ser vice. Fire-tests cer tification is available and can be provided upon request.

    Fully piggable
    Flanged End Expanding Gate Valves are designed to be Fully Piggable. Pigs and scrapers can be run through the valve without any damage to the internal structure of the valve.

    Easy maintenance
    Flanged End Expanding Gate Valves design minimizes and eases the maintenance allowing for the ser vice operations to be done without the removal of the valve from the line.

    Double Block and Bleed
    Double block and bleed capability and automatic relief of excess body pressure are standard features of RAYS Through Conduit Slab Gate Valves. With the valve fully closed and pressure on both sides, it is possible to bleed the pressure from the body cavity to check seat seal integrity and to achieve double isolation between the two sides and avoid any risk of product contamination

    Single piston effect seats
    Seats rings are floating type and are energized against the gate by means of helical springs. The initial seating is enough to assure sealing between gate and upstream seat when the line pressure is applied. The gate allows axial movement and the upstream force derived from line pressure force the gate against the downstream seat creating a double, bubble tight barrier.

    Additional features (Available on request)
    • Metal seated/Tungsten Carbide coating for abrasive fluids
    • Stem extension for buried ser vice/high temperature ser vice
    • Inconel 625 cladding of the sealing sur faces for corrosive ser vice
    • CRA alloys for ver y corrosive media (Duplex,UNS S31254,UNS S34565)
    • Seat Sealant Injection system for Emergency Sealing
    • Transition Pipe Pups welded to the valve ends
    • Position indicator
    • Actuation (Electric, Pneumatic and Hydraulic actuators)

    Self relieving features
    The single piston design with the possibility of both seats and gate to float, permits the automatic release of any overpressure in the body cavity.
    Consequently, the seat rings are "self-relieving".

    SIZE RANGE: 1-13/16″~7-1/16″
    WORKING PRESSURE: 2000~15000 PSI
    DESIGN STANDARDS: API 6A
    MATERIAL CLASS: AA~HH
    END CONNECTION: RTJ FLANGE OR THREARED
    APPLICATION: OIL FIELD
    SLAB GATE VALVES



    The Slab Gate Valves features a non-rising stem with a slab gate,
    Full-Bore Thru-Conduit Design, Floating Slab Gate and Seats,
    floating seat ring body bushing design to provide safe
    dependable service. No special tools are needed to change gate
    and seat assembly. The stem pin protects the stem and internal
    parts from failure by shearing if the handwheel is over torque.
    One-piece gate helps to prevent line sediment from entering the
    body cavity and prevents pressure locks when the up stream
    pressure drops. A wide range of body and trim materials to meet
    various operating conditions.
    Flanged End
    3,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    2-1/16″ 52.4 371 530 80
    3-1/8″ 79.4 435 570 125
    4-1/16″ 103.2 511 635 230
    10,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    1-13/16″ 46.0 464 530 90
    2-1/16″ 52.4 521 535 120
    2-9/16″ 65.1 565 570 140
    3-1/16″ 79.4 619 595 210
    4-1/16″ 103.2 670 685 360
    7-1/16″ 179.4 889 955 1720
    Threaded End
    3,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    2-1/16″ 52.4 244 530 60
    5,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    2-1/16″ 52.4 371 525 80
    2-9/16″ 65.1 422 550 105
    3-1/8″ 79.4 473 590 155
    4-1/16″ 103.2 549 660 255
    7-1/16″ 179.4 813 840 490
    15,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    1-13/16″ 46.0 457 530 105
    2-1/16″ 52.4 483 705 120
    3-1/16″ 77.8 698 705 320
    4-1/16″ 103.2 737 750 480
    5,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    2-1/16″ 52.4 244 530 60
    EXPANDING GATE VALVES
     
    The Expanding gate valves provides great
    performance to economical applications. The
    valve gate geatures simple onepiece design.
    Seats will be energized by the preloaded-
    springs or the high pressure vented from
    upstream, to form a tight seal between seat
    and gate. The metal-to-metal sealing design
    is universally reliable in most demanding
    applications.  Flanged End
    2,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    2-1/16″ 52.4 295 470 45
    2-9/16″ 65.1 233 475 60
    3-1/8″ 79.4 359 550 100
    4-1/16″ 103.2 435 425 160
    3,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    2-1/16″ 52.4 371 475 50
    2-9/16″ 65.1 422 490 95
    3-1/8″ 79.4 435 550 150
    4-1/16″ 103.2 511 635 260
    7-1/16″ 179.4 714 715 260
    5,000 psi Working Pressure
    Size  Bore(mm) Face to Face(mm) Total Height(mm) Weight(Kg)
    2-1/16″ 52.4 371 475 50
    2-9/16″ 65.1 422 550 105
    3-1/8″ 79.4 473 555 150
    4-1/16″ 103.2 549 635 280
    7-1/16″ 179.4 813 715 600
    10,000 psi Working Pressure
    Size  Bore(mm) Face to Face(mm) Total Height(mm) Weight(Kg)
    1-13/16″ 46.0 464 375 100
    2-1/16″ 52.4 521 400 135
    2-9/16″ 65.1 565 425 190
    3-1/16″ 79.4 619 440 250
    4-1/16″ 103.2 670 530 380
    15,000 psi Working Pressure
    Size  Bore
    (mm)     		Face to Face
    (mm)     		Total Height
    (mm)     		Weight
    (Kg)
    2-1/16″ 52.4 483 415 165
    2-9/16″ 65.1 533 415 195
    3-1/8″ 79.4 698 480 260
    4-1/16″ 103.2 737 555 485
    Threaded End
    2,000 psi Working Pressure
    Size  Bore(mm) Face to Face(mm) Total Height(mm) Weight(Kg)
    2-1/16″ 52.4 245 470 45
    2-9/16″ 65.1 260 475 60
    3-1/8″ 79.4 290 550 90
    4-1/16″ 103.2 330 625 130
    3,000 psi Working Pressure
    Size  Bore(mm) Face to Face(mm) Total Height(mm) Weight(Kg)
    2-1/16″ 52.4 245 475 50
    2-9/16″ 65.1 260 490 60
    3-1/8″ 79.4 290 550 90
    4-1/16″ 103.2 330 625 125
    5,000 psi Working Pressure
    Size  Bore(mm) Face to Face(mm) Total Height(mm) Weight(Kg)
    2-1/16″ 52.4 245 475 50
    2-9/16″ 65.1 260 495 65
    3-1/8″ 79.4 290 550 90
    4-1/16″ 103.2 330 625 125

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