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Self-Priming Micro Pumps
Inert solenoid operated self-priming fixed displacement
diaphragm pumps
Inside.....
Specifications
Pump Series & Weight .... 2
Electrical ......................... 2
Lead wires ...................... 2
Pressure limits ................ 3
Cycle rates ...................... 3
Dispense volume
accuracy ......................... 3
Manifold mounted pumps 4
Ports and tubing ............. 4
Internal volume ............... 4
Mounting ........................ 5
Adjustable pumps ........... 5
Wetted materials ............. 6
Ordering information ............ 6
Installation drawings ............. 7
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High accuracy dispense settings from 8µl to 250µl
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Low power consumption / minimal heat generation
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Low internal volume
!
Positive shut off
!
High cycle life - up to 20 million dispense cycles
!
Choice of inert wetted materials
Broad range of dispense settings and flow rates
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.
Self-priming
At startup, the pump is able to draw air. The suction created by the larger pumps is sufficient to pull liquids from an un-
pressurized container located up to 1.3 meters (4’ 3”) beneath the pump. Once the pump is primed, it is able to generate
around 5 psi (0.3 bar) pressure, equating to 3.5 meters (11’ 6”) of water.
Wide assortment of inert wetted materials available
The pumps provide a non-metallic, inert fluid path for the dispensing of high purity or aggressive fluids. The standard pump
body is made of PPS (polyphenylsulfide). Other materials available for the pump body include PTFE, PEEK
TM
and Delrin
®
. The
elastomers that can be used for the diaphragms and check valves include PTFE, EPDM, and Viton
®
.
High reliability
The pumps are designed for continuous duty. They are guaranteed for up to 20 million actuations, corresponding to nearly
3,000 hours of continuous use at a 2 Hz cycle rate.