Oxygen, Nitrogen, Argon Cylinder Filling Pump

Liquid Oxygen pumps are designed for assembly in air separation unit that works by pumping liquid oxygen, nitrogen and Argon and gasifying the same in Heat Exchangers for final filling of gas into cylinders. Cylinders are filled more and more with the help of special liquid pump, which pumps the liquid from the liquid source to the cylinder filling system.

Pump is designed as per the plant size and the liquid produced is continuously pumped with least monitoring required

• Pump consists of a stainless steel inside liner with liquid inlet and evaporated gas outlet pores

• There are no valves on these ports which are closed by the piston itself on the pressure stroke

• Third outlet is the main discharge outlet with the two non-return ball valves.

• The two valves remain firmly closed during suction strokes, due to high pressure in partially filled cylinders

• A positive pressure of 60kg/cm² has to be maintained to ensure that the valves are fully closed

• Cryogenic pumps can be supplied with a fixed motor or a variable speed drive

• Capacity available for pumping is from 20 cum/hr to 500 cum/hr.