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Piston Positive Displacement Pump
Digital Dispensing System
The True Volume™
Piston Positive Displacement Pump uses a Creative Automation
patented technology to offer the most accurate volume control available
in the fluid dispensing industry. True
Volume™ pumps maintain accuracy in the most demanding circumstances.
Changes in
Digital Dispensing is the dispensing process that utilizes the True Volume Positive Displacement Pump. Very similar to the way a video screen is composed of tiny pixels or the way a digital clock divides time into small increments, Digital Dispensing creates a high-definition dispense pattern one shot at a time. 90,000 shots per hour
temperature,
viscosity or deposit size will not impact the accuracy or speed of the
True Volume pump.
The True Volume™ technology employs a piston that moves within the
dispensing chamber to deliver an exact amount of fluid through the tip.
The True Volume Pump delivers true piston positive displacement dispensing,
with no delay for refill and with unrivaled accuracy.
Digital Dispensing is the opposite of “analog” or timed
dispensing. Time/pressure, an on/off valve, a rotary valve or a linear
positive displacement valve are all “analog” dispensing
devices. The accuracy of timed devices is dependant on controlled flow
over the defined time segment. They require frequent flow calibration
and readjustment.
The unique strength of the True Volume Positive Displacement Piston Pump
is volumetrically accurate, metered shots, dispensed at a high rate of
speed down to dot diameters of .006 inches. 90,000 true positive displacement
shots per hour, with top end flow rates greater than 1.5 milliliters per
second.
. . . If volumetric accuracy is required
. . . If high speed dispensing is a must
Digital Dispensing is the ultimate solution.
Material is held in a syringe or reservoir and transfered under low pressure (2 – 15 psi) to a pumping chamber. The material is then dispensed under high pressure through precision tips, by the stroke of the piston. The high-pressure internal pump action ensures fast, accurate, homogeneous dispensing. The True Volume Pump is unaffected by changes in viscosity and allows dispensing of materials from 1 cps up to 1,000,000 cps.
The True Volume pump family includes models designed for all applications. The lightweight version (SP-2) is perfect for applications requiring multiple dispense heads. Standard models are built in stainless steel while models for abrasive materials use tungsten and Delrin materials for wetted parts. Patented tips and pistons are available for single shot volumes ranging from .001 microliters (1 nanoliter) to 274 microliters.