What is Piston Compression?

When the piston is moved to bottom dead point, the air is taken through the dry air filter, passing through the suction valves. When the piston is moved to top dead point, the air is pressurized by closed discharge valves. The piston compressors are operated with electric motor and belt and pulley drive system. The operation of the piston compressor is lubricated by splash lubrication. The lubrication oil is fed to the crankshaft, main bearings, connecting rods and piston rings. Proven piston compressor lubrication oils are used in lubrication of the piston compressors.

 For single stage compressors, the pressurized air from the discharge valves is first collected in the header pipe and then conveyed to the air tank via check valve. The check valve installed at the inlet port of the air tank prevents the pressurized air to flow back. Besides, discharging of the pressurized air in the compressor and header pipe is performed either by automatic release valve or solenoid valve.

 For double or triple stage compressors, the air pressurized by the lower stages is conveyed to second or third stages through intermediate coolers and then collected in the header pipe and then conveyed to the air tank via check valve.

 The steam in the air naturally condenses in the pressurized air tank. This is discharged via the discharge valve at the bottom of the tank. By this way, the air will be made use of free from its moisture content.

 In some case, it may be necessary to include pressurized air drier, where the system moisture is high and the use of dried air is indispensible.