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Pumps

Micro Pumps (Bio-Chem)

• High accuracy dispense settings from 4µl to 250µl
• Low power consumption / minimal heat generation
• Low internal volume
• Positive shut off
• High cycle life
• Choice of inert wetted materials

Diaphragm Pumps (Brailsford)

• Miniature, brushless DC, diaphragm pumps.
• True brushless DC motor, not an inverter-driven AC motor.
• Motor and crank pin bearings are double-shielded, instrument type ball bearings lubricated for the life of the unit.
• Pumping section(s) consist of synthetic rubber diaphragms housed in molded plastic or aluminum casings directly driven from the motor shaft by a scotch yoke-crank assembly.
• Valves are self-biasing, fiberglass reinforced synthetic rubber or other elastomer.
• No metallic springs are used.
• Air or gas being pumped contact only the plastic and synthetic rubber areas.
• All moving parts are completely enclosed.
• Small physical size and extremely low power drain-to-air delivery ratio; ideal for portable applications where only battery power is available.
• Motor generates no radio frequency interference (RFI) and all electronic components are contained within the motor housing.
• Pumps may be mounted in any position.

Positive Displacement Pumps (Fluid Metering INC)

• No valves to clog.
• One moving part (piston)
• Drift-Free accuracy better than +/- 1%
• Ceramic and fluorocarbon fluid path.
• Excellent chemical resistance
• 6 standard and custom models.
• Special OEM pricing available on request.
• Displacement of 0 to 1280 microliters per revolution.

• 1.8 stepper motors with opto sensors.

Valves - Fittings and Accessories - Valve Drivers - Bottle Caps - Bubble Traps - Columns - Pumps - Blowers - Sensors and Controls - Timers

Bio-Chem

    The diaphragm pumps are factory set for discrete outputs ranging from 8μl to 250μl. The pumps can be cycled at up to 2.0 Hz for the smallest version and 1.6 Hz for the largest version. Flow rates reach up to 25 ml / minute. Depending on the dispense setting, very high accuracy can be achieved with deviations from set-point of less than 1%. For optimal accuracy, the pumps should be used for the transfer of fluids between un-pressurized containers.