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  • Block & Bleed Sizes

    NPS ½ FP to NPS 16 SP
    ½″ FP to 16″ SP
  • Block & Bleed Connections

    150# to 4500#, NPT, SW,
    BW, Graylock and Custom
  • Block & Bleed Applications

    Customizable with a bubble tight seal, exotic alloys, & custom ends
  • Block & Bleed Temperatures

    -50°C to 260°C
    -58°F to 500°F
  • Block & Bleed Delivery

    Standard Delivery (16-20 weeks)
    Expedited delivery available.
  • Block & Bleed Quote

    Click here to receive an
    S-Class Block & Bleed Valve quote.

S-Class Valve Downloads

  • S-Class Block & Bleed Valves

    S-Class Block & Bleed Valves

    The Gosco Block and Bleed Valve stands on top of its class by providing the unique components featured in a standard S-Class valve, combined with cutting edge live-loaded seat technology. Gosco Valves' extended bonnet, S-Class sealing system, Clearview mounting pad, soft seats and exotic alloy options make these block and bleed valves extremely versatile, enabling them to tackle the toughest severe service applications.

    Block & Bleed
  • Configurations

    Configurations

    A single block and bleed configuration is used when the operator wants to check the integrity of the seats in a valve. With the valve in the closed position, you can pressurize each end, and open up the bleed valve to see if the seats are working properly. A double block and bleed with an integral body (one valve, two balls, four seats and a bleed valve) is used for applications where there is limited space, requiring a double block and bleed valve with reduced dimensions.

    Configurations
  • Shaft Sealing

    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
  • Bi-Directional Sealing

    Bi-Directional Sealing

    The M-Class Valve design is completely symmetrical and doesn’t have a “Preferred Direction”. It seals bubble tight in both directions with both a full pressure differential, OR a 1 psig differential. Gosco Valves are completely bi-directional so installers do not need to worry about flow direction and/or high pressure sides.

    Bi-Directional
  • Encapsulated Seats

    Encapsulated Seats

    S-Class Valve encapsulated “Soft" seats are used for high cycle, abrasive, high pressure, cryogenic and high temperature applications. 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. Afterwards, the seat profile is machined and match lapped to the ball. For abrasive/high pressure drop applications, a Devlon insert can be used with a boronized ball.

    Encapsulated
  • Exotic Alloys

    Exotic Alloys

    Cast or bar stock, Gosco manufactures ball valves out of any metal, even metals that require vacuum casting (like titanium). We are not restricted to creating just the body from exotic alloys, as we can manufacture all components to suit your needs, right down to the bolting. Our engineering team at Gosco Valves has extensive experience in corrosive applications, recommending only the best material to use for your specific application.

    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

    Clearview is a combination of a 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 from the valve, and acts as a heat sink to protect it from excessive temperatures.

    Clearview
  • 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