tailieunhanh - LIQUI-MOVER PUMP HANDBOOK

A Liqui-Mover pump is a positive displacement pressure powered pump with a minimum of moving parts. The pumping action is accomplished using a positive pressure to push the liquid from the pump tank into the return line. The Liqui-Mover pump can handle high temperature and high pressure condensate without difficulty. Liqui-Mover pumps are available in nine sizes. They are available in many configurations, from individual components that are field assembled to complete packaged systems ready for connection to field piping. A basic Liqui-Mover pump consists of a receiver/reservoir, pump tank, 3-way motive valve, inlet and outlet check valves, level control, and. | LIQUI-MOVER PUMP HANDBOOK KADANT AN ACCENT ON INNOVATION Kadant Johnson Inc. 805 Wood Street Three Rivers MI 49093 USA 269-278-1715 fax 269-279-5980 LMP Handbook-4002 What is a Liqui-Mover Pump A Liqui-Mover pump is a positive displacement pressure powered pump with a minimum of moving parts. The pumping action is accomplished using a positive pressure to push the liquid from the pump tank into the return line. The Liqui-Mover pump can handle high temperature and high pressure condensate without difficulty. Liqui-Mover pumps are available in nine sizes. They are available in many configurations from individual components that are field assembled to complete packaged systems ready for connection to field piping. A basic Liqui-Mover pump consists of a receiver reservoir pump tank 3-way motive valve inlet and outlet check valves level control and various other fittings. How a Liqui-Mover Pump Works In describing How a Liqui-Mover Pump Works it is advantageous to look at the overall operation and then break it down into smaller operations for a better understanding. Condensate from the equipment being drained enters the receiver reservoir tank and flows down the fill line into the pump tank. When the predetermined high level is reached in the pump tank the level control system sends out a signal which causes the 3-way motive valve to cycle. When the 3-way valve cycles the equalizing line between the receiver reservoir and the pump tank is closed off and a regulated motive pressure is admitted into the pump tank. This motive pressure is confined above the condensate in the pump tank and its effect is to move the condensate out of the pump tank and into the return line. When the condensate reaches a predetermined low level the level control sends another signal causing the 3-way valve to revert to its original position. The residual motive pressure remaining in the pump tank will flow through the equalizing line into the receiver reservoir enabling the .