S-Class 3-Way Diverter Valves

S-Class 3-Way Diverter Valves offer superior reliability in an affordable and readily available package. Our quarter-turn 3-Way Diverter Valves are bottom entry with flow to the left or right ports. We offer a "Single L Port" ball for 180° applications, and a "Double-L Port" ball for 90° applications. The seats are live-loaded so that they seal in both directions, and don't rely on the process pressure to assist with sealing the ball and seats.

Ball Configurations

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.

Stem Sealing System

The core of our patented stem sealing system is the dual live-loaded packing. To eliminate side loading on the packing, we've added two stem guides to support the stem 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 stem sealing system has been tested by TUV, and exceeds all current and projected fugitive emission standards.

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" stem 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.

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 stem flats are also visible, and the actuator is raised away from the elevated process temperatures, preventing damage to the actuator seals.

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.

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.