ABSTRACT
Pressure control is a key element in the design of any circuit. Not only is it the key to achieving a given functional objective, it is also the key to safe operation.
Components are designed to operate at a given maximum pressure and will withstand pressure peaks up to some burst pressure. Failure of a component can be dangerous to nearby workers. They can be injured by shrapnel, or they may be injured when they are hit by a stream of high-pressure, hightemperature oil. Injuries received when oil penetrates the skin are very difficult to treat and require specialized medical knowledge. Often, there is also potential for worker injury by losing control of a load held against gravity.
