Please upgrade your web browser now. Internet Explorer 6 is no longer supported.>
  • Vari-V Sizes

    NPS ½ FP to NPS 8 SP
    ½″ FP to 8″ SP
  • Vari-V Connections

    150#, 300#, 600#,
    NPT, SW, butt weld
  • Vari-V Configurations

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

    -50°C to 593°C
    -58°F to 1100°F
  • Vari-V Delivery

    Based on size and material availability
  • Vari-V Quote

    Click here to receive a
    Fab Valve Vari-V Valve quote.

Fab Valve Downloads

  • Fab Valve Vari-V Control Overview

    Vari-V Control Valves

    When you require precise control of flow, pressure or temperature, the Fab Valve Vari-V Control Valve provides exactly what you need. Standard 10°, 30°, 60°, 90° V's are cut into the ball to handle the majority of control requirements. Custom profile V's are used for unusual applications requiring special flow characteristics.

    Vari-V Valve
  • Standard V-Balls

    V-Balls

    At the heart of every M-Class metal seated control valve lies the Vari-V ball. The profile of the V-ball determines the flow characteristic of the valve and can be interchanged to suit the application. 10°, 30°, 60° and 90° V-balls are most common, but other profiles are readily available, including the Linear-V, Filler-V and High Turndown-V. The transition between high flow and fine control with the Vari-V is extremely smooth. Custom V ball options are also available.

  • Custom V-Balls

    Custom V-Balls

    Custom V balls are available for applications that possess specific flow requirements which cannot be met using a standard V-ball. With the aid of Computational Fluid Dynamics (CFD), we can create a V-ball with a specific profile to fit any application. Anti-cavitation trim is also available. For further information on custom V-ball applications, including videos and specifications, please contact Gosco Valves.

  • Computational Fluid Dynamics (CFD)

    CFD/

    Computational Fluid Dynamics (CFD) is a flow simulation software package that can be used to identify high velocity flow paths within our valve. If these velocities are high enough to cause cavitation or damage to the valve, special design elements can be added to reduce/manage the velocities. CFD was used in conjunction with real flow testing to determine the flow coefficient (Cv) of our standard Vari-V balls. It is also used to design custom Vari-V balls, where unique flow characteristics are required for the service.

  • 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. When powder gets trapped in the spring cavity, it causes the valve to “lock up”. To solve this issue, Gosco uses a completely different approach to the competition - instead of trying to seal the spring from the media, we deliberately open up the cavity around the spring. This allows the media to flow around the spring, but also allows it to escape just as easily. Media never gets trapped in the valve, so we never have issues with valves "locking up".

  • Dual Shaft Packing

    Dual Shaft Packing

    Gosco Fab valves have a live loaded upper packing set, Smartpak lower packing, and upper & lower shaft guides to support the shaft and prevent side-loading. The Gosco shaft sealing system is the best in the world and exceeds all fugitive emission standards.

  • Fast Track

    Fast Track

    What good is an elite custom ball valve if it can’t be delivered when you need it? Fast Track is our expedited delivery service, designed to help you meet near-impossible deadlines. The fee is calculated based on accelerated engineering & design, supplier expedite charges, air freight charges, extra manpower, and other associated costs. What does this buy you? The world’s best valve and a solid guarantee: If we don't deliver on time, we waive all Fast Track fees.

Fab Valve Configurations