Dolphin VL Total Recirculation Systems are designed for full recirculation of the operating fluid. The benefits of these total recirculation systems are low water consumption, recovery of condensed vapours and process gases, and isolation of the cooling liquid from the operating fluid. A compact yet highly efficient stainless steel separator vessel serves to separate the discharge gas/liquid mixture, allowing the operating fluid to be returned to the vacuum pump.

A brazed plate heat exchanger is also included as standard (with the option of a shell and tube type) to remove the heat of compression, condensation and friction from the operating fluid before it is reintroduced back into the vacuum pump. Instrumentation including an inlet check valve, fresh liquid supply kit, level indicator with switches, temperature and pressure indicators and cavitation protection allow for simple monitoring and control of the Dolphin VL Total Recirculation Systems.