Parker Bestobell’s Constaflo is a water flow controller which provides effective control of water-based media, ensuring flow rates are maintained within +10% of their rated capacity. The EPDM diaphragm works in conjunction with a profiled orifice to maintain a constant flow rate, regardless of upstream or downstream pressures, within the operating range of the unit.  An initial pressure drop of 15 psi (1.06kg/cm²) is necessary for the unit to reach the control point.  The flow controller has a maximum working pressure of 200 psi (14 kg/cm ²) and a maximum working temperature of 65 °C.

Markets:
• Defence

Features / Benefits:
• Accuracy +10% when operating in the range 15 to 200 psi differential pressure.
• Ensures flow rate is maintained irrespective of upstream or downstream pressures.
• Extremely robust and reliable
• Tried and trusted performance - been used for over 50 years in defence sector

Applications:
• Managing cooling systems for on-board electronics on warships and auxiliary support vessels
• Noise suppression in submarines -  this technology is used to reduce the noise profiles of many submarines, through management of on-board auxiliary systems for cooling electronics and sanitary systems
•  Radar systems -  many land and marine based radar systems require in built cooling control systems
•  Weapons control systems