STI UD Derivative Unit Booster

UD Derivative Unit is a specific device to amplify the exhaust. The regulating system is specifically designed for modulation and allows an accurate tuning to maximize speed without compromising the stability of the actuator. This product is designed to be used in modulating systems (amplification of positioner exhaust flow) and also for on/off systems.

STI AV 1/4'' Volume Booster

AV Volume Booster is designed to meet conventional and high speed control valve applications. It produces a volume boosting action and contains an integral stabilizing by-pass valve, adjustable by a screw. Opening this valve it is possible to improve the stability of the system composed by positioner - volume booster - actuator.

IMI STI BV1 Big Volume Booster

Official Web BV Big Volume Booster is designed to meet high-speed control applications. It produces a high volume boosting action and contains an integral stabilizing by-pass valve, adjustable by a screw. Opening this valve, it is possible to improve the stability of the system composed by positioner - volume booster - actuator. This product is specifically designed to be piloted by a positioner with high CV, such as our FT positioner.

STI IMI BW Ultra Volume Booster

STI BW BW Ultra Volume Booster is designed to meet very high-speed control applications. It produces a high volume boosting action and contains two integral stabilizing by-pass valves, adjustable by screws, one for supply amplification and the other for exhaust amplification. This product is specifically designed to be piloted by a positioner with high CV, such as our FT positioner.