Control Air Type 6000 Volume Booster is a one-to-one signal to output relay that, when used with a positioner/actuator, is designed to increase the stroking speed of control valves. An integral bypass valve allows you to tailor the output force to meet the application requirements. Large signal changes to the booster can deliver high volume, fast action throttling control while smaller signal changes are dampened. When used with on/off control valves, the bypass can be closed for increased stroking speed. The T6000 is available in aluminum or stainless steel construction.