12V Adjustable Peristaltic Dosing Pump, 1ml-250ml/min Fine Tuning Titration Pump, AB21 Single Head Desig Flowing Dosing Pump with Adapter for Aquarium Lab Analytical

• The peristaltic pump works like squeezing a hose with your finger, squeezing your finger forward, and the gas or liquid inside the tube moves forward. The peristaltic pump's roller replaces the finger and alternately squeezes the flexible hose inside the pump to pump the fluid. Peristaltic pump by adjusting the speed and change the inner diameter of the pump tube to achieve changes in flow.

Item Type:Peristaltic PumpModel:G928 PanelMotor Type:DC brushed geared motorPump Head:Roller peristaltic pumpMaterial:304 stainless steel + silicone + PCPulsation:3 rollers, small pulsationFlow Rate:500ml/minPump Tube Material:Food grade platinum vulcanized silicone tubePump Tube Inner Diameter:Approx. 6.4mm / 0.25inPump Tube Outer Diameter:Approx. 9.6mm / 0.38inPump Head Material:Transparent PCInstallation Method:Panel mountPackage List： 1 x Peristaltic Pump；1 x Wrench；1 x Dedicated Silicone TubeNote： The flow direction of the peristaltic pump depends on the positive and negative connection method.

• The pump head can be divided into two parts; the rotor and the pump casing. The pump tube is placed on a bed between the rotor and the pump casing, and its function is to close the pump tube

• The ball on the rotor runs over the pump tube once, the fluid in the middle is squeezed out, and the pump tube returns to its original shape after the ball has been run over, forming a vacuum, from which the fluid can be pumped in from behind

• Between the ball to form a fluid pillow, its shape and size of the pump tube diameter and the geometry of the rotor, the flow rate depends on the velocity of the pillow-shaped fluid and the size of the product. This pillow shape can remain unchanged, unless the fluid viscosity is too large

Advantages of Peristaltic Pump：

1. No contamination, from the inlet to the outlet is a pump tube, the fluid only touches the pump tube, not the pump body.
2. Fluid only contact the pump tube, easy to clean, or directly replace the pump tube to avoid cross-contamination.
3. Rolling by rotor rotation, each rotation of the flow is the same, small error, high precision.
4. No churning fluid impellers, gears, diaphragms, etc., low shear force, is the ideal tool for conveying shear-sensitive, aggressive fluids.
5. Pump tube extruded into a closed state by the roller, with extremely strong self-priming capacity and ultra-high head, which can be idled and prevent backflow.
6. Can pump liquids, gases, solids, or multi-phase mixtures, and the diameter of solids contained in the fluid can reach 40% of the inner diameter of the pump tube.
7. With bi-directional equal flow conveying capability, the motor can be reversed to reverse conveying.
8. A wide range of pump tube types available for a variety of chemical properties and sanitary grades.
9. No vane, diaphragm, valve, mechanical seal device, there is no possibility of failure caused by these parts.

Disadvantages of Peristaltic Pump：

1. Peristaltic pumps have a smaller flow rate for the same power compared to other pumps.
2. Pump tube will wear out under repeated rolling of the rollers and needs to be replaced in time.
3. Pump will produce a pulse flow when the rollers alternate during operation.

1 x Power Adapter

1 x Spool

Peristaltic Pump Principle：

Specification