Micro Metering Pumps

Overview

• Piston Pump provides precise metering of beverage concentrates and other fluids.
• Volumetric dosing accuracy: +/- 2% of set point, < 1 micro liter standard deviation.
• “True” Positive Displacement unlike diaphragm pumps subject to variable stroke volume.
• Accurately pumps high viscosity fluids up to 250 centipoise.
• Polysulfone pump head and wetted component materials are Food Grade.
• Fluid Flow Rate up to 100 ml per minute.
• Fluid source is typically beverage concentrates and other fluids stored in atmospheric pouches.
• Seitz offers OEM customization to accommodate higher and lower flow ranges

Features and Benefits

• Very high metering accuracy is provided at a competitive price point.
• Reciprocating piston delivers precise stroke volume, each and every stroke.
• Magnetically coupled piston pump head minimizes moving parts and promotes high reliability.
• Pump head may be replaced in seconds to higher or lower volume capacity. Potentially disposable like a printer cartridge. Economical to service.
• Small footprint requires minimal space.
• Pump evacuates an atmospheric product pouch (or fluid bag) greater than 99% without loss of metering accuracy

Control Method

• Pump control module precisely regulates speed and commands the pump to dispense in discrete strokes on demand. Hall Sensor output confirms stroke position and speed.
• 3-Wire Pigtails Provided Power, 24 VDC Signal, 1.0 to 5.0 VDC Ground
• Pump speed may be selectively controlled either through analog or digital signal input.
• Analog Control: 1.0 to 5.0 VDC input linear with 1.2 to 5.0 Hz pump speed.
• Digital Control: Control will accept a signal cycled from zero to 1.0 — 5.0 VDC. Signal voltage must maintain for at least 20 ms before reverting state to zero volts for the control to recognize one (1) signal cycle. Each signal cycle results in one (1) pump stroke. If signal voltage remains steady, the control will interpret an Analog signal and regulate to the speed corresponding to the signal voltage.