Foreach DPGL800-BS 24 V Brushless DC Dual-Head Miniature Gas-Liquid Diaphragm Pump, 6 L/min No-Load Gas Flow per Head, 10,000 h Service Life
The Foreach DPGL800 Series Brushless Miniature Gas-Liquid Diaphragm Pump is designed for gas and gas-liquid mixtures. It is not suitable for pumping 100% liquid. It has a single-head no-load gas flow rate of 6 L/min, a maximum positive pressure of +30 kPa, a maximum negative pressure of < -90 kPa, a 24 V brushless motor, and a service life of 10000 h. It is suitable for gas-liquid waste extraction, gas-liquid mixture transfer, line evacuation, and automated equipment requiring strong suction performance. Actual performance may vary with the medium state, tubing configuration, and operating load. Refer to the specification table below for detailed parameters. The stated service-life value applies at rated voltage under continuous operation.
Typical Applications:
Gas suction, vacuum generation, gas-liquid waste extraction, gas-liquid mixture transfer, line evacuation
| Product Type | Miniature Gas-Liquid Diaphragm Pump |
|---|---|
| Motor Type | Brushless DC Motor |
| Rated Voltage | DC 24V ±10% |
| Rated Power | ≤17 W |
| Free-Flow Rate (Single Head) | 6 L/min |
| Maximum Positive Pressure | 30 kPa |
| Maximum Negative Pressure | <-90 kPa |
| Working Medium | Gas, gas-liquid mixture |
| Fluid Temperature | +5 °C–+40 °C |
| Interface | G1/8 (female thread) |
| Weight | 600 g |
| Service Life | 10,000 h |
| Pump Head Material | PP S |
| Diaphragm Material | EPDM / PTFE |
| Valve Material | EPDM / FFKM |
Typical Applications for a High-Vacuum Gas-Liquid Diaphragm Pump
The DPGL800 is designed for aspiration duties where the fluid path may contain gas, liquid or a gas-liquid mixture. Its key selection parameters are a 6 L/min free gas flow reference, maximum vacuum below -90 kPa, 30 kPa maximum positive pressure and brushless 24 V operation. Unlike a conventional liquid-transfer pump, it is selected primarily by aspiration behavior, target vacuum, system volume, medium state and line losses.
1. Vacuum Waste Aspiration Pump for IVD and Analytical Instruments
In IVD and analytical instruments, waste removal may involve liquid mixed with air rather than a continuously filled liquid line. A vacuum waste aspiration pump can draw residual liquid, wash waste and entrained air from a collection point toward a waste container.
The DPGL800 is better matched to this type of aspiration duty than a conventional low-flow liquid transfer pump when a strong vacuum source is required. The 6 L/min specification refers to free gas flow; waste-liquid removal rate must be validated with the actual gas-liquid ratio, tubing, vacuum level and discharge condition.
2. Gas-Liquid Aspiration Pump for Laboratory Automation
Automated sample preparation, washing or liquid-handling equipment may need to aspirate residual liquid while air enters the line intermittently. In these systems the pump functions as a gas-liquid aspiration pump rather than a constant-flow liquid delivery pump.
Maximum vacuum below -90 kPa provides the suction capability for demanding aspiration paths, while the real evacuation time depends on system volume, tubing ID, restrictions and the proportion of gas and liquid reaching the pump.
3. Line Evacuation Pump for Instrument Fluid Paths
After draining, bottle replacement or maintenance, an instrument may need to evacuate air and residual liquid from tubing before the next fluidic step. A gas-liquid diaphragm pump can be used as a line evacuation pump to clear the path and establish the required negative pressure.
The 6 L/min free gas flow is relevant to how quickly an air-filled volume can be evacuated, but it must be combined with the target vacuum and system volume. Do not use the 6 L/min figure as a liquid-flow specification.
4. Vacuum Source for Automated Aspiration Modules
Some automated instruments use a central or local negative-pressure module to drive aspiration at probes, waste manifolds or collection chambers. In this role, the pump acts as a vacuum source for the aspiration module rather than directly defining the liquid flow at every branch.
Selection should be based on required vacuum, total aspirated volume, simultaneous branch demand, tubing losses, medium state and allowed build-up time. Wetted-material compatibility must be verified whenever liquid can reach the pump.
Application Selection Note
For DPGL800, do not select the pump from the 6 L/min number alone. The value is a free gas-flow reference. Define the medium as gas, gas-liquid mixture or intermittent liquid slug; then specify the target vacuum, system volume, acceptable evacuation time, tubing resistance, discharge condition and wetted materials. Final performance must be verified in the complete aspiration circuit.
Learn more: Vacuum, build-up time and selection of a gas-liquid diaphragm pump →Frequently Asked Questions
Yes. In evacuation and vacuum aspiration applications, the DPGL800 can serve as a miniature diaphragm vacuum pump for gas aspiration, tubing evacuation, and vacuum generation. Select it according to the target vacuum level, system volume, and allowable evacuation time, and confirm compatibility between the actual medium and wetted materials.
Need help selecting a diaphragm pump?
Share the fluid, flow rate, pressure, self-priming requirements, wetted materials, port type, and installation space. The Foreach engineering team can help confirm a suitable diaphragm pump configuration.