Control Shunts

Each lumber kiln is equipped with a control shunt to compensate for the pressure drop that occurs inside the kiln as water flows through the heating coils and associated piping.

We manufacture many different models of control shunts and have experience dating back to the 1970s.
Some shunts use two-way valves, others three-way valves, and some use dual two-way valves of different sizes. This allows for sequential control, offering better regulation of the shunt. Valves are typically electrically controlled today, but pneumatic control is also possible.

If the shunts are placed inside the kiln, pneumatic control is required; if placed outside, we always recommend electric control.

For safety reasons, we prefer using three-way valves or dual two-way valves to reduce the temperature in the coils below 100°C before anyone enters the area. Shunts also include balancing valves, check valves, wedge gate valves, and shut-off valves. Thermometers are installed, and we often integrate multiple sensor ports for current and future monitoring needs.