About Linear Diaphragm Pump
Animation:  See how linear diaphragms work
Technical Overview
See Thomas Dry Running Linear Diaphragm Compressors
See Thomas Dry Running Linear Diaphragm Vacuum Pumps
For Technical Assistance Call Combined Fluid Products Company: 800-521-2083

Direct Electrical Actuation of Pumping Method
Two Different Means of Actuation: Linear and Vibrating Armature 

 Linear pumps work by reduction of a volume by direct action of a shuttle on a membrane or piston. 

• Very long life
• Oil-less
• Quiet operation
• Low power consumption
• Fluid capability with smaller models
• Low pulsation
• High efficiency
• No bearings
• Flow rates up to 12.7 cfm (360 l/min), pressure up to 10 psi (0.7 bar), max vacuum 16.2 in. Hg (-550 mbar)  

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Technical Overview - Linear Diaphragm

Linear and vibrating armature pumps and compressors utilize electromagnetism to apply force to a diaphragm or piston positively displacing air. Alternating current in electrical coils reverse the magnetic field induced around a magnetized rod at a rate determined by the supplied frequency. Movement of the diaphragm/piston attached to the end of the rod, forces air through one-way valves (See Animation).

Linear/vibrating armature pumps and compressors are quiet and efficient. With fewer wearing parts than equivalent reciprocating devices, linear compressors are regarded as long life, low maintenance devices. However, the pneumatic performance is limited to the strength of induced magnetic field, making them suitable for low differential pressure applications.

We offer a wide range of linear/vibrating armature pumps and compressors with flows ranging from 0.7 to 360 l/min under free flow conditions.

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