Four-Plunger Valveless Metering Pump
Four-Plunger Valveless Metering Pump
Four-Plunger Valveless Metering Pump
Four-plunger valveless metering non-injecting general-purpose metering pump. It operates stably, provides precise liquid supply, and performs directional transportation. It is the best material supply choice for high-precision liquid transportation in fields such as photomask adhesive solvent transportation, drug infusion, and microdialysis.
Features
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It adopts four plungers operating alternately to achieve stable directional liquid transportation. The flow rate, flow direction and measurement volume can be controlled by software.
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There is no one-way valve. Four polytetrafluoroethylene pistons operate simultaneously. When the micro stepper motor drives the rotor, the pistons perform reciprocating motion under the drive of a rotating end face cam.
Specifications
| Model | VLFP-20 |
| Flow Rate Range | 0.05–20 mL/min |
| Working Pressure | <100 psi |
| Flow Accuracy | ±0.3% (1 mL/min) |
| Pump Head Material | 316L |
| Recommended Operating Flow Range | 0.1-18 mL/min |
| Communication Interface | 1×3-pin circular aviation connector (RS485) |
| Flow Repeatability | RSD<0.1%(1mL/min) |
| Internal Pump Volume | 600 μL |
| Flow Setting Precision | 0.05 mL/min |
| Inlet Tubing Spec. | PFA OD 1/8”, ID 0.08" |
| Outlet Tubing Spec. | PFA OD 1/8", ID 0.08" |
| Dimension (D×W×H, mm) | 240×76×76 |
| Remarks |
Net Weight: 3.0 kg; Gross Weight: 4.0 kg; Power Rating: 100 W |



