Reciprocating / piston compressors are positive displacement type compressors in which a quantity of air or gas occupies a space which is mechanically reduced, resulting in a corresponding increase in pressure.
Simplex - A simplex machine is one of the most common compressor sold. It has a simple one pump, one motor design mounted on a tank.
Duplex - A duplex reciprocating machine is one that has two pumps mounted on the same tank with an alternator to switch the load from one pump to the other, or switch on both pumps if demand requires.
Single Acting - This type of compressor is characterized by an automotive type piston driven through a connecting rod from the crankshaft. Compression takes place on the top side of the piston on each revolution of the crankshaft. A design variation in small single-stage oil less compressors is a combined piston and connecting rod which tilts or rocks in the cylinder during its travel within the cylinder. Single-acting reciprocating air compressors may be air cooled or liquid cooled although the vast majority are air cooled. These may be single-stage, usually rated at discharge pressures from 25 to 125 psig; two-stage, usually rated at discharge pressures from 125 psig to 175 psig; or multi-stage for pressures above 175 psig. Single-acting air compressors may also utilize either a splash or a full pressure lubrication system.
Double Acting - This type of reciprocating air compressor uses both sides of the piston to compress the air. The piston is driven by a piston rod extending through a packing gland from a crosshead, which is driven through a connecting rod from the main crankshaft.
Because of such a wide variety of products for every application, not all products are listed above, with new ones coming out every day. Please contact 1st Quality Air Inc., your compressed air experts for proper application.
