Samson Controls has made available a new design of booster which eliminates the time-consuming trial and error procedures associated with the fine tuning of control valves. Thanks to its precisely manufactured bypass restriction, the booster can be adjusted exactly and lead-sealed, which minimizes potential start-up problems. Even under fluctuating pressure conditions, because the booster is completely pressure balanced, it provides a stable output. The signal pressure is transmitted with a defined hysteresis, without loss (gain 1:1) and emits minimal noise. The booster’s functional parts come into contact with instrument air only, alternatively the booster’s exhaust air port can be protected from the weather or other environmental factors. When used in combination with a positioner, the booster allows control valves with large pneumatic actuators to be controlled quickly and precisely, even in applications with high flow rates or significant pressure drops.
