THREE-WAY MIXING AND DIVERTING - SERIES 30, 31 AND 32

When flowed in reverse it can be used for splitting flows. The Series 31 valve is used for flow splitting, with a body design based on the Series 20 valve. It features one inlet and two outlets, with an inherently balanced plug. The Series 32 valve is based on a cage-guided balanced plug design and is used for proportional splitting of flows where there would otherwise be high unbalanced forces acting on the plug. The flow is from under the valve and is diverted through the straight outlet connections.

Why Choose a Three-Way Valve?

• For proportional splitting or mixing of flows.
• High flow capacity.
• Balanced trim construction allows for high flow rates while the actuator size is kept to a minimum.
• Minimum differential plug areas to reduce actuator force requirements (Series 31 and 32 valves).
• Excellent flow control rangeability.

Features:

• Top-guided plug with additional skirt guiding through the seat rings - effective on both seats.
• Trim design is either ported or High Friction (HF).
• Most components serviceable from the top.
• Choice of trim sizes available.

Trim Designs

• Series 30A - Mixing (blending) service: When used for mixing, the Series 30 valve has two separate inlets and one common outlet. Flows are proportionally blended into one stream by control of the valve plug position. The standard plug is a linear ‘V’ port design providing a high flow capacity and high rangeability.
• Series 30B - Splitting (diverting) service: When flowed in reverse the series 30 valve can be used for splitting the flows. Here, the valve has one common inlet and the flow is split proportionally between the two outlets. The total outlet capacity is constant, irrespective of the plug position.
• Series 31 - Splitting (diverting) service: Based on the Series 20 design, the Series 31 valve has an additional body rib inserted to separate the flows. The under/over flow regime means the plug is inherently balanced, so that the valve requires a smaller actuator than an equivalent Series 30 valve.
• Series 32 - Splitting (diverting) service: Based on the Series 10 body casting, the Series 32 valve has a bottom flange fitted to the base of the body as an inlet connection. The trim is cage guided with a balanced plug. Depending on the plug position, flow is proportionally directed to the left or right-hand outlet.

Get In Touch

For further information about KKI top and bottom-guided control valves, please contact us