<https://darwin-microfluidics.com/products/mzr-2921x1-micro-annular-gear-pump-with-controller#Product>
<http://schema.org/description>
"mzr-2921X1 micro annular gear pump from HNP Mikrosysteme generates low pulsation, high precision flow from 30 µL/min to 18 mL/min (minimum dispensing of 0.5 µL). The integrated motion controller allows to precisely control the pump and program complex workflows.\nThe pump is suitable for dosage of low-viscosity liquids such as deionized water, watery solutions, methanol, solvents, oil and lubricants.\nGeneral\nMicro annular gear pumps generate a near pulsation-free and accurate flow rate down to a few µL/min. The low-pressure series pumps are designed for the dispensing of low-viscosity liquids, such as aqueous solution, solvents, oils and lubricants.\nThe mzr-2921X1 is the medium pump from the low-pressure series:\n\nBased on the mzr-2921 pump, with an integrated high-precision controller\nFlow range: 30 µL/min - 18 mL/min\nMin. dispensing volume: 0.5 µL\nDifferential volume range: 0 - 3 bar (44 psi)\nIntegrated motion controller: control the start/stop, speed and direction of the pump through analog and RS-232 interfaces, built-in potentiometer or mzr Pump Control software (included)\n70 W, 24 V DC, 3 A power supply included\n\nFeatures & Benefits\n\nNear pulsation-free and accurate flow rate down to 1% (CV value): competes with the best syringe pumps\nIdeal for recirculation: open reservoirs, without the pulsatility of peristaltic pumping (low shear stress)\nWide range of applications, from analytical chemistry to cell culture and point-of-care diagnostics\nVersion with integrated controller: program and control your pump easily\n1/4-28 manifold in PEEK: easily connect the pump to any tubing\nCompact size: Ø 22 mm, length 89 mm\n\nEach pump component is available in a variety of materials to meet your needs:\n\n\n\nRotor\nHousing\nShaft seal (not in contact with fluids)\nStatic seals\n\n\n\n\nhard metal (tungsten carbide Ni-based): for pH > 4\nceramics: for pH < 4\n\n\n\n\n316L stainless steel\nhastelloy C22 (2.4602)\n\n\ngraphite-reinforced PTFE\n\n\nKalrez (FFKM)\nEPDM\n\n\n\n\n\n \nContent\n1x mzr gear pump with X1 module\n1x 1/4-28 PEEK manifold\n1x S-G05 controller box\n1x Power supply\nPrinciple\nTwo eccentrically mounted rotors are intermeshed with their cycloid gearing. This results in a system of several sealed pumping chambers exists at all times. With a tooth ratio of 6/7, six individual chambers are created.\n\nAs the rotors turn around their offset axes, the volume of the pumping chambers increases on the induction side and simultaneously decreases on the delivery side of the pump. A homogeneous and low-pulsation flow rate is generated between the kidney-shaped inlet and outlet which also combines several pumping chambers at the same time.\n  \nSpecifications\n\n\n\nFlow rate\n0.03 - 18 mL/min\n\n\nSmallest dosage volume\n0.5 µL\n\n\nDisplacement volume\n3 µL\n\n\nDifferential pressure range\n0 - 3 bar (44 psi)\n\n\nMaximum inlet pressure\n1 bar (15 psi)\n\n\nLiquid temperature range\n-20 ... +60 °C (-4 ... +140 °F)\n\n\nViscosity range\n0.3 - 100 mPas\n\n\nPrecision CV\n1 % (Coefficient of variation CV)\n\n\nVelocity range\n10 - 6000 rpm\n\n\nFluid connection\n\nPEEK 1/4-28 manifold (fittings not included)\n\n\n\nWetted parts\n\nHousing and rotor: stainless steel 316L, ceramics, tungsten carbide Ni-based, epoxy resin, optional: alloy C22 (2.4602) instead of stainless steel, ceramics instead of tungsten carbide\nShaft seal: graphite-reinforced PTFE, stainless steel 316L\nStatic seals: FFKM, optional: EPDM\n\n\n\nMotor\nDC-motor with graphite brushes, assigned power rating 3 W, nominal voltage 18 V, digital magnet encoder 16 counts per turn\n\n\nController\nIntegrated motion controller\n\n\nInterface\n0-10 V, RS-232, 1 digital input/output\n\n\nElectrical connection\n8-pole connector\n\n\nPower supply\n70 W, 24 V DC, 3 A (included)\n\n\nDimensions (L x W x H)\nØ 22 mm, length 89 mm\n\n\nWeight\n125 g + weight of the PEEK manifold\n\n\n\nDocumentation\n?2921X1 gear pump datasheet\n?2921X1 gear pump manual"
<https://darwin-microfluidics.com/products/mzr-2921x1-micro-annular-gear-pump-with-controller>