DC 12V Peristaltic Dosing Pump | Aquarium & Lab Liquid Pump
DC 12V Peristaltic Dosing Pump | Aquarium & Lab Liquid Pump
DC 12V Peristaltic Dosing Pump — Precision Liquid Delivery for Aquariums & Labs
The GROTHEN Model G328 DC 12V Peristaltic Dosing Pump is a compact, self-priming mini liquid pump engineered for precise, low-pressure fluid delivery. Whether you're managing aquarium additives, conducting chemical analysis, or dosing solutions in a laboratory or food-processing environment, this versatile peristaltic pump delivers consistent, controllable flow with minimal maintenance.
Key Features
- Tool-Free Pump Head: Buckle-design pump head (no screws required) — simply press the side tabs to remove for fast cleaning and hassle-free maintenance.
- Bidirectional Flow Control: Supports both clockwise (CW) and counter-clockwise (CCW) rotation — simply swap the positive and negative power connections to reverse flow direction.
- Self-Priming Function: Starts liquid flow without manual priming, making setup quick and straightforward.
- No Valves or Seals: The valve-free design means fewer parts to wear out and easier silicone hose replacement.
- Three-Roller Pulsation: Triple-roller mechanism delivers a smooth, steady flow for accurate dosing.
- Wide Application Range: Ideal for aquariums, laboratory analysis, biochemical research, pharmaceuticals, fine chemicals, biotechnology, food processing, and environmental monitoring.
Specifications
| Model | G328 |
| Voltage | DC 12V |
| Colors Available | Black / Green (optional) |
| Pump Head Material | ABS Plastic |
| Pump Tube | Transparent Silicone (food-grade) |
| Pulsation Type | Three-Roller |
| Pressure | Low Pressure |
Tube Sizes & Flow Rates
| Silicone Tube (ID × OD) | Flow Rate |
|---|---|
| 1mm × 3mm | >11 ml/min |
| 2mm × 4mm | >39 ml/min |
| 3mm × 5mm | >80 ml/min |
Package Details
- Package Size: 7.0 × 6.0 × 4.5 cm (2.8 × 2.4 × 1.8 in)
- Package Weight: 84 g (3.0 oz)
- Package Includes: 1 × Peristaltic Dosing Pump
Made in Mainland China.
For general guidance on laboratory equipment safety standards and best practices, refer to OSHA's Laboratory Safety Resources.
Frequently Asked Questions
Q: What is a peristaltic dosing pump and how does it work?
A: A peristaltic pump moves liquid by compressing and releasing a flexible silicone tube using rotating rollers. The liquid is pushed forward through the tube without ever contacting the pump mechanism itself, keeping the fluid uncontaminated and the pump easy to clean. This makes it ideal for precise dosing in aquariums, labs, and chemical applications.
Q: Can I control the flow direction of this DC 12V peristaltic pump?
A: Yes. By switching the positive and negative poles of the 12V DC power supply, you can easily toggle between clockwise (CW) and counter-clockwise (CCW) rotation, effectively reversing the liquid flow direction as needed.
Q: Which silicone tube size should I choose for my aquarium or lab application?
A: Choose based on your required flow rate. The 1mm × 3mm tube delivers over 11 ml/min (suitable for micro-dosing), the 2mm × 4mm tube delivers over 39 ml/min (general aquarium additives), and the 3mm × 5mm tube delivers over 80 ml/min (higher-volume lab or chemical dosing tasks).
Q: Is the pump head easy to clean and maintain?
A: Absolutely. The pump head uses a tool-free buckle design — press the tabs on both sides to detach it in seconds. There are no valves or seals to disassemble, and the silicone tube is quick to swap out, making routine maintenance fast and simple.
Q: Does this pump require priming before first use?
A: No. The G328 peristaltic dosing pump features a built-in self-priming function, so it begins drawing and moving liquid as soon as it is powered on, without the need for manual priming.