Piston Pumps - Diener Precision Pumps - #1

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Ø6.34mm Piston Pump Displacement at 20° Offset Angle -30 -20 -10 0 10 20 30 -180 -150 -120 -90 -60 -30 0 30 60 90 120 150 180 Motor Rotation (°) Displacement (ml) Product Datasheet: Precision Series Piston Pumps • Simple construction reduces cost • Positive Displacement: accurate and repeatable flow rates • Mounting Versatility: Mounting brackets are customized for each application • Chemically inert wetted materials • Select from five piston diameters • Available with stepper, brush-less DC, and brush-type DC motors • 100% tested to customer requirements Document No.: PD-0019 All Diener pumps are customized to suit your requirements: the information below represents one of the possibilities... QF3222i Product Datasheet Version: 15-02-08 Engineering Released: QM Page: 1(1) None of the information supplied by Diener Precision Pumps constitutes a warranty regarding product performance or use. Any information regarding performance or use is only offered as suggestion for investigation for use, based upon Diener Precision Pump’s or other customer experience. DPP makes no warranties, expressed or implied, concerning the suitability or fitness of any of its products for any particular purpose. It is the responsibility of the customer to determine that the product is safe, lawful and technically suitable for the intended use. The disclosure of information herein is not a license to operate under, or a recommendation to infringe any patents. 9mm Piston Pump with Adjustable Displacement The Precision series piston pumps were developed specifically for applications requiring a very exact flow at a fast dispense rate. The piston geometry isolates the outlet and inlets without the need for internal check valves, simplifying the construction and reducing flow restriction. The pumps are typically provided in a “fixed” position to deliver a set flow-per-stroke. An adjustable mounting frame is optional, allowing the pump displacement to be altered in the field and then locked in position. Speed sensing options include encoders, hall sensors, and/or photo detectors. The displacement algorithm is well-defined, allowing the end user to correlate motor position with the amount of fluid dispensed. 19mm Piston Pump with Adjustable Displacement 6.34mm Piston Pump with Electronic Dosing Control Specifications Performance: Max. continuous pressure: 4 bar Max. intermittent pressure: 6 bar Max. static case pressure: 6 bar Inlet: Self-priming Accuracy: within 1% of full scale Precision: Typically < 0.5% Speed range: 0-1500 rpm Fluid viscosity range: 0.3 to 1000 cps Electrical: Motor type: typically stepper motor, but also available in brush and brush-less DC. Rotation: Reversible Max. current: Dependent on motor type Max. output power: Dependent on motor type Connection: Flying wires, cable, or tabs Motor rating: Motor specific Speed sensing: Optional Temperature: Fluid temp. range: -20 to +100°C Ambient air temp. range: 0-60°C Relative humidity range: 0-95% noncondensing Construction: Standard: PVDF, Ceramic (alumina), PTFE. Optional: PEEK®, Polysulfone, Polypropylene Rinse ports: Optional Inlet/Outlet: 3mm barbed tube (standard); Optional: 8mm tube, 1/4-28 UNF bottomsealing threads. Permanent laser-mark identification for 100% traceability. Mass: Dependent on pump size and motor Graph showing the inlet and outlet strokes of a typical pump as a function of the motor rotation. The intake/dispense follows a cosine curve. Piston pumps undergoing long-term life testing