Intensifier pumps consist of a piston head and a plunger disposed within the exterior cylinder. It drives the plunger with a hydraulic cylinder that is usually operated with oil. An interior cylinder is disposed within the exterior cylinder. A piston having an anterior plunger is disposed within the interior cylinder and is driven by the plunger for compressing a fluid in a compression chamber to flow through the valve. A ceramic liner is disposed within the interior cylinder and circumferentially disposed around the compression chamber.
Interactive voice response is a phone technology that allows a computer to detect voice and touch tones using a normal phone call. The IVR system can respond with pre-recorded or dynamically generated audio to further direct callers on how to proceed. IVR systems can be used to control almost any function where the interface can be broken down into a series of simple menu choices. Once constructed IVR systems generally scale well to handle large call volumes.