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  • Fab Valve Sizes

    NPS ½ FP to NPS 8 SP
    ½″ FP to 8″ SP
  • Fab Valve Connections

    150#, 300#, 600#,
    NPT, SW, butt weld
  • Fab Valve Configurations

    On/Off, Vari-V Control,
    Double Isolation and Bleed
  • Fab Valve Temperatures

    -50°C to 593°C
    -58°F to 1100°F
  • Fab Valve Delivery

    Based on size and material availability
  • Fab Valve Quote

    Click here to receive a
    Gosco Fab Valve quote.

Fab Valve Downloads

  • Fab Valve Overview

    Fab Valves

    Our proprietary design allows us to use common internals and body plates for 90% of exotic alloy metal and soft seated applications. Since only four wetted components need to be fabricated in-house, we can deliver valves extremely quickly.

  • Alloy Options

    Alloy Option

    The unique design of the Fab Valve uses body plates that never come in contact with the process media. This minimizes the amount of material used in the body and bonnet and makes the valve very inexpensive when exotic alloys are needed for corrosive applications.

  • Superior Trim Hardening

    Superior Trim Hardening

    BORONIZING is a thermo-chemical surface hardening process that creates a surface layer that’s so hard, it can’t be measured on the Rockwell C Scale. We use Inconel 718 because it is the best overall metal for corrosion, high temperature, and wear resistance. Our PROPRIETARY BORONIZING has a layer depth over 100 microns (0.004”) and a hardness between HV 2500-2700.

    Compared to HVOF coatings, BORONIZING is:
    Substantially harder, markedly more wear resistant, impervious to corrosion, and is capable of handling huge temperature shocks without spalling or flaking.

  • Seat/Spring Design

    Seat/Spring Design

    Gosco's patented seat/spring design is perfect for powder/catalyst applications to prevent build up of powder behind the seats. The spring pushes against the seat while simultaneously sealing against the body so media can not get behind it. Media never gets trapped between the seat and body or between the spring and the seat.

  • Arcuate Cut Ball

    Arcuate Cut Ball

    An arcuate cut is a profile in the ball that reduces velocity as the valve opens and closes. When a standard ball valve is in the first and last ten degrees of opening/closing, velocities are very high (especially in the corners), and erosion occurs. With an arcuate cut, the opening on the ball is almost three times as large. This reduces the velocity by spreading out the flow through a larger opening, which ultimately reduces wear on the ball and seats.

  • Bi-Directional Sealing

    Bi-Directional Sealing

    The Fab Valve design is completely symmetrical, and seals bubble tight in both directions with both a full pressure differential or a 1 PSI differential. Gosco Valves are completely bi-directional so installers do not need to worry about flow direction and/or high pressure sides.

  • Encapsulated “Soft" Seats

    Encapsulated Seats

    The F-Class Valve encapsulated soft seats are used for high cycle, abrasive, high pressure, cryogenic and high temperature applications. Our proprietary live-loaded design allows us to completely encapsulate the "Soft" insert on all four sides, leaving only a small section of the "Soft" material exposed for sealing. The “soft” inserts are held in place by “barbs” on the metal inner and outer carrier, to prevent cold flow. The assembly is then compressed to 3-4 times the maximum pressure rating of the valve so that the insert takes a compression set. Afterwards, the seat profile is machined and match lapped to the ball. For abrasive applications, it can be used with a boronized, arcuate cut ball.

Fab Valve Configurations