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  • 3-Way Valve Sizes

    NPS ½ FP to NPS 16 SP
    ½″ FP to 16″ SP
  • 3-Way Valve Connections

    150# to 4500#, NPT, SW,
    BW, Graylock and Custom
  • 3-Way Valve Applications

    Low temperatures, exotic
    alloys, and custom designs
  • 3-Way Valve Temperatures

    -50°C to 260°C
    -58°F to 500°F
  • 3-Way Valve Delivery

    Standard Delivery (16-20 weeks)
    Expedited delivery available.
  • 3-Way Valve Quote

    Click here to receive a
    3-Way Diverter Valve quote.

S-Class Valve Downloads

  • 3-Way Diverter Valve Overview

    3-Way Diverter

    S-Class 3-Way Diverter Valves offer unrivalled quality and reliability, coupled with customization options that make them the perfect valve for your application. They are bottom entry with flow to the left or right ports and options include a Single "L" Port ball for 180° applications, and a Double “L" Port ball for 90° applications. They have all the features of a standard S-Class valve and the seats are live-loaded so they don’t rely on the process pressure to assist with sealing.

    3-Way Diverter
  • Ball Configurations

    3-Way Diverter

    Single "L" (Looking at the ball from the top) Flow direction is bottom entry to the left. Turn 180° and flow direction is bottom entry to the right. A single "L" configuration allows you to have a shut off position at 90°.

    Double "L" (Looking at the ball from the top) Flow direction is bottom entry to the left. Turn 90° and flow direction is bottom entry to the right. With a double "L" configuration, there is always flow going to one side or the other with a mix between.

    Ball Configurations
  • Shaft Sealing System

    Shaft Sealing System

    The core of our patented shaft sealing system is the dual live-loaded packing. To eliminate side loading on the packing, we've added two shaft guides to support the shaft at the bottom and the top. For a third layer of protection, a fugitive emissions port can be drilled to monitor the areas between the packing sets. Our shaft sealing system has been tested by TUV, and exceeds all current and projected fugitive emission standards.

    Shaft Sealing
  • Encapsulated "Soft" Seats

    Encapsulated Seats

    S-Class Valve encapsulated “Soft” seats are perfect for high pressure/temperature applications because they don’t distort. Our live-loaded design completely encapsulates the "Soft" insert on all four sides, to minimize its exposure to the process. The “Soft” inserts are held in place by “barbs” on the metal 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. Then, the seat profile is machined and match lapped to the ball. Our encapsulated seats increase the temperature rating by approximately 50°C and allow us to go to Class 4500 with “Soft Seats".

    Encapsulated Seats
  • Exotic Alloys

    Exotic Alloys

    Cast, forged or bar stock, Gosco manufactures ball valves out of any metal - even specialty metals that require vacuum casting (like titanium). We are not restricted to making just the body from exotic alloys - we can manufacture any component to suit your needs, right down to the bolting. Our engineering team at Gosco Valves has extensive experience in corrosive applications, and can recommend the appropriate material to use for specific media.

    Exotic Alloys
  • Extended Bonnet

    Extended Bonnet

    The extended bonnet is perfect for insulated lines as there is at least 2" between the top of the flange and the bottom of the Clearview mounting pad. This allows you to fully insulate the valve and still have access to make packing adjustments, without having to remove the actuator or insulation. The valve shaft flats are also visible, and the actuator is raised away from the elevated process temperatures, preventing damage to the actuator seals.

    Extended Bonnet
  • Clearview Mounting Pad

    Clearview Mounting Pad

    The Clearview mounting pad is a combination of an ISO 5211 mounting pad for easy installation of valve accessories, and a CNC machined/cast bracket that guarantees accurate actuator alignment. Packing adjustments can be performed in-line without removing the actuator, and the double "D” shaft gives you a visible indication of the position of the valve. Clearview also raises the actuator away from the valve, and acts as a heat sink to protect it from high temperatures.

  • Fast Track Service

    Fast Track Service

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

    Fast Track