mzr-2521 micro annular gear pump from HNP Mikrosysteme generates low pulsation, high precision flow from 0.15 to 9 mL/min (minimum dispensing of 0.25 µL). It combines the advantages of peristaltic and syringe pumps: near pulsation-free, and easy fluids recirculation.
The pump is suitable for dosage of low-viscosity liquids such as deionized water, watery solutions, methanol, solvents, oil and lubricants.
General
Micro 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.
The mzr-2521 is the smallest pump from the low-pressure series:
- Flow range: 0.15 - 9 mL/min
- Min. dispensing volume: 0.25 µL
- Differential volume range: 0 - 1.5 bar (22 psi)
The mzr-2521 is an OEM pump, prefer the mzr-2521X1 for standalone operation.
Features & Benefits
- Near pulsation-free and accurate flow rate down to 1% (CV value): compete with the best syringe pumps
- Ideal for recirculation: open reservoirs, without the pulsatility of peristaltic pumping (low shear stress)
- Wide range of applications, from analytical chemistry to cell culture and point-of-care diagnostics
- Easily connect the pump to any tubing: slip fittings 2 mm OD, or manifold M2.1 (1/4-28 manifold not included)
- Compact size: Ø 13 mm, length 75 mm
Each pump component is available in a variety of materials to meet your needs:
| Rotor |
Housing |
Shaft seal (not in contact with fluids) |
Static seals |
- hard metal (tungsten carbide Ni-based)
- ceramics
|
- 316L stainless steel
- hastelloy C22 (2.4602)
|
graphite-reinforced PTFE
(If an FDA conformity is required, the shaft seal is available in FPM-XP41)
|
|
Content
1x mzr 2521 gear pump
(optional) 1x 1/4-28 PEEK manifold
Principle
Two 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.
As 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.
Specifications
| Flow rate |
0.15 - 9 (min. 0.0015 *) mL/min |
| Smallest dosage volume |
0.25 µL |
| Displacement volume |
1.5 µL |
| Differential pressure range |
0 - 1.5 bar (22 psi) |
| Maximum inlet pressure |
1 bar (15 psi) |
| Liquid temperature range |
-20 ... +60 °C (-4 ... +140 °F) |
| Viscosity range |
0.3 - 100 (max. 1,000 *) mPas |
| Precision CV |
1 % (Coefficient of variation CV) |
| Velocity range |
100 - 6000 (min. 1 *) rpm |
| Fluid connection |
slip fittings with outside diameter 2 mm
manifold assembly M2.1
|
| Wetted parts |
Housing 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
Shaft seal: graphite-reinforced PTFE, stainless steel 316L
Static seals: FFKM, optional: EPDM
|
| Motor |
DC-motor with graphite brushes, assigned power rating 3 W, nominal voltage 18 V, digital magnet encoder 16 counts per turn |
| Electrical connection |
10-pole connector |
| Dimensions (L x W x H) |
Ø 13 mm, length 75 mm |
| Weight |
slip fittings version: approx. 50 g
manifold M2.1 version: approx. 65 g
|
* depending on accessories, Customized solutions on request
Documentation
?2521 gear pump datasheet
?2521 gear pump manual
