Gast diaphragm compressors

Gast's diaphragm compressors and vacuum pumps are oil-free, compact and lightweight units with low power consumption. In a short-stroke reciprocating motion, a diaphragm on top of the connecting rod flexes up and down in a closed chamber, creating pressure or vacuum. The series delivers pressure up to 60 psig (4.1 bar), vacuum up to 29 inHg (31 mbar) and air flows up to 3.9 cfm. The units are robust and corrosion-resistant, deliver cooler discharge air and are easy to maintain.

The range is available in standard, twin and miniature versions. DOA and DAA are supplied as standard with a silencer for vacuum use and a motor capacitor. DOA is also available in a laboratory version with vacuum/pressure gauges, hose barbs, regulators, carrying handle and rubber feet, and in a version with a PTFE-coated head and diaphragm cover, neoprene diaphragm and stainless steel valves.

The electric motors are available in dual-frequency, shaded-pole and PSC (permanent split capacitor) versions and as multi-voltage AC motors for worldwide use. The miniature models are available with 4–24 V DC. Typical applications are blood analysis, respirators and nebulisers, vacuum holding with suction cups, dental and surgical equipment, automotive cruise control, graphic arts equipment, gas and air analysis, breast pumps, sterilisers, airbrushes, agricultural foam markers, oil atomisers and laboratory equipment.