The hydrostatic test system comprises a Hughes plunger pump at 0.1 to 3.0m3/hr at up to 1400bar (20,000psi) to test the integrity of the umbilicals, generally to 150% of the working pressure. The system is closed loop and includes suction and discharge filters to clean the fluid to NAS1638 class 6 or better. An offline pump/filtration unit continuously filters the fluid even when testing is not taking place and a heat exchanger is fitted to the system, using seawater to cool the process fluid.
The systems generally include inverter driven electric motors for fine flow control, high pressure flow meters and filtration. When used in the manufacturing process the equipment can be PLC controlled. The operator scans a bar code on the umbilical(s) & initiates the process. The pump(s) then automatically adjust speed to achieve the required flow & pressure depending on the diameter, length, quantity and test pressure of the umbilicals.