Function：Non-Voc sampling of groundwater, also be usedfor Voc sampling without airbag pumps.
Advantage：Wide flow range: 10ml-3000ml/min; The flow rate is stable and adjustable and it is suitable for chinese well.
Introduction
Functions: Groundwater well sampling，washing. Wide flow range, 0.1-12L/min
Advantages: High-flow well washing, low-flow sampling, dual-purpose pump; Standard lift of 70 meters, 300 meters in use at the Fourth Academy of Nuclear Science and Technology
Features:
1) Compared with imported pumps, the flow rate is twice as high, and the lift is 50% higher. Currently, there are users using it at 300 meters.
2) Uses a composite cable with meter markings, allowing you to see the depth of the pump head underground, unlike imported pumps which lack meter markings.
3) As an underground water sampling pump, it is distinctly different from traditional submersible pumps and does not cause secondary pollution.
The AML918 groundwater sampling pump is a submersible pump designed for groundwater monitoring wells, low-flow groundwater sampling, well purging and well washing. Its wide and adjustable flow range allows users to perform both high-flow well purging and controlled low-flow sampling with the same pump.
For environmental monitoring projects that require flexible flow control, reliable pumping depth and practical field operation, AML918 provides a cost-effective alternative for groundwater sampling applications.
Key Applications
AML918 is designed for a range of groundwater monitoring and environmental sampling applications, including:
- Groundwater monitoring well sampling
- Low-flow groundwater sampling
- Groundwater well purging
- Well washing and development
- Environmental site investigation
- Groundwater quality monitoring
- Non-VOC groundwater sampling
- Selected VOC sampling applications when used with an appropriate sampling system
The pump can operate at different flow rates according to the requirements of the sampling or well-purging procedure.
Wide and Adjustable Flow Range
One of the main advantages of AML918 is its wide flow range.
The pump can operate from approximately 10 mL/min to 3000 mL/min, with stable and adjustable flow control. For well washing and purging applications, the system can provide a higher flow rate of approximately 0.1–12 L/min.
This makes AML918 suitable for two different operating conditions:
High-flow pumping:
Used for well purging, well washing and other applications where a higher pumping rate is required.
Low-flow pumping:
Used for controlled groundwater sampling where maintaining a stable and relatively low flow rate is important.
Instead of using separate pumps for different stages of a field project, users can use AML918 for both high-flow and low-flow operations.
Designed for Groundwater Monitoring Wells
AML918 is specifically developed for groundwater sampling rather than general-purpose water pumping.
Its adjustable flow makes it suitable for monitoring wells where sampling conditions can vary according to well depth, water level, sampling method and project requirements.
For environmental engineers and field technicians, the ability to adjust the pumping rate provides greater flexibility when establishing a suitable sampling procedure.
70 m Standard Lift, With Field Use at Greater Depths
AML918 has a standard lift of 70 meters.
The pump has also been used in a field application at approximately 300 meters, demonstrating its ability to operate in substantially deeper groundwater applications under appropriate system conditions.
Actual pumping depth and performance can vary depending on well conditions, tubing, cable configuration, power supply and required flow rate. For deep-well projects, we recommend confirming the application requirements with our technical team before ordering.
Meter-Marked Composite Cable
AML918 uses a composite cable with meter markings.
This simple design feature can make field operation easier because technicians can determine the approximate depth of the pump head during installation and sampling.
For groundwater monitoring projects, knowing the pump position inside the well is important when controlling the sampling depth and maintaining consistent sampling procedures.
Designed to Reduce Secondary Contamination Risk
AML918 is designed specifically for underground water sampling applications and differs from conventional submersible water pumps.
The pump is intended to minimize the risk of introducing unwanted contamination into the sampling process when used correctly according to the applicable sampling procedure.
For projects involving sensitive groundwater analysis, the complete sampling system, tubing, materials, cleaning procedures and field protocols should also be considered when evaluating contamination risk.
AML918 vs. Traditional Submersible Pumps
A conventional submersible pump is primarily designed to move water.
A groundwater sampling pump has additional requirements because the objective is not simply to pump water out of a well. The sampling process must also consider flow control, sampling depth, well conditions and the potential effect of the pumping equipment on sample integrity.
AML918 is designed around these groundwater sampling requirements, providing:
- Adjustable flow for sampling and purging
- A wide operating flow range
- Deep-well pumping capability
- Meter-marked cable for depth positioning
- A design intended specifically for groundwater sampling
- One pump for both well purging and low-flow sampling applications
AML918 or Bladder Pump: Which One Should You Choose?
A bladder pump is commonly selected when controlled low-flow groundwater sampling is the primary requirement, particularly for applications where minimizing sample disturbance is a major consideration.
AML918 provides a different approach by combining low-flow sampling capability with higher-flow well purging and well washing.
Choose AML918 when you need:
- One pump for both purging and sampling
- A wider flow range
- Higher flow capacity for well washing
- Flexible pumping depth
- A practical solution for routine groundwater monitoring
If your project requires a dedicated bladder pump for low-flow sampling, see our AML919 Groundwater Sampler (Low-Flow Bladder Pump).
Technical Specifications
| Item | AML918 |
|---|---|
| Product Type | Submersible Groundwater Sampling Pump |
| Main Applications | Groundwater sampling, well purging, well washing |
| Sampling Flow Range | Approximately 10–3000 mL/min |
| Higher Flow Range | Approximately 0.1–12 L/min |
| Standard Lift | 70 m |
| Demonstrated Field Depth | Approximately 300 m |
| Flow Control | Stable and adjustable |
| Cable | Composite cable with meter markings |
| Application | Groundwater monitoring wells and environmental sampling |
Actual performance may vary according to well conditions, pumping depth, power supply and system configuration. Please contact AIMOLI for application-specific technical recommendations.
Why Choose AIMOLI for Groundwater Sampling Equipment?
AIMOLI Environmental Instruments specializes in groundwater and environmental monitoring equipment for professional applications.
Our product range includes groundwater sampling pumps, bladder pumps and other groundwater monitoring instruments.
As a China-based manufacturer, AIMOLI can provide direct technical communication, product customization and support for international customers looking for groundwater sampling equipment.
For projects involving special well depths, flow requirements or sampling configurations, our technical team can evaluate the application before production.
Request AML918 Groundwater Sampling Pump Information
If you are looking for a groundwater sampling pump, low-flow groundwater sampling pump, or a pump for both groundwater well purging and sampling, AML918 may be suitable for your application.
Contact AIMOLI with the following project information:
- Groundwater well depth
- Required sampling depth
- Required flow rate
- Well diameter
- Sampling method
- Whether low-flow sampling is required
- Whether VOC or non-VOC sampling is required
Our team can recommend a suitable configuration based on your actual groundwater monitoring requirements.
