German ILC pump ILC model ILC price

The most basic form of the ILC pump consists of two gears of identical size meshing and rotating within a closely fitted housing. The interior of this housing resembles the shape of the number "8", with the two gears installed inside. The outer diameters and sides of the gears fit tightly against the housing. Material from the extruder enters between the two gears at the suction inlet, filling this space. It then moves along the housing as the teeth rotate and is finally discharged when the two gears mesh.

ILC pump working principle

The concept of a gear pump is very simple. Its most basic form consists of two gears of identical size meshing and rotating within a closely fitted housing. The interior of this housing resembles the shape of the number "8", with the two gears installed inside. The outer diameters and sides of the gears fit tightly against the housing. Material from the extruder enters between the two gears at the suction inlet, filling this space. It then moves along the housing as the teeth rotate and is finally discharged when the two gears mesh. A gear pump is also known as a positive displacement device. Similar to a piston in a cylinder, when one tooth enters the fluid space of another tooth, the liquid and the tooth cannot occupy the same space simultaneously because the liquid is incompressible. Consequently, the liquid is mechanically squeezed out. Due to the continuous meshing of the teeth, this phenomenon occurs continuously, providing a continuous discharge volume at the pump outlet. The discharged volume per revolution remains constant. As the drive shaft rotates uninterrupted, the pump discharges fluid without interruption. The pump flow rate is directly related to the pump speed. In practice, there is a small amount of fluid loss within the pump because this fluid is used to lubricate the bearings and the sides of the gears. Furthermore, the pump body cannot have a gap-free fit, so it is impossible for the fluid to be discharged from the outlet at 100%. Therefore, a small amount of fluid loss is inevitable, preventing the pump's operating efficiency from reaching 100%. However, the pump can still operate well, achieving an efficiency of 93% to 98% for most extruded materials. This type of pump is not significantly affected by changes in fluid viscosity or density during the process. If a damper, such as a filter screen or restrictor, is placed on the discharge side, the pump will push the fluid through them. If this damper changes during operation—for example, if the filter becomes dirty or clogged, or if the back pressure of the restrictor increases—the pump will maintain a constant flow rate until the mechanical limit of the weakest component in the system is reached (a torque limiter is usually installed). There is actually a limit to the speed of a pump, which mainly depends on the process fluid. If oil is being transported, the pump can rotate at high speeds. However, when the fluid is a high-viscosity polymer melt, this limitation increases significantly. It is crucial to fill the space between the two teeth on the suction inlet side with high-viscosity fluid. If this space is not completely filled, the pump cannot discharge an accurate flow rate. Therefore, the PV value (pressure × flow velocity) is another limiting factor and a process variable. Due to these limitations, gear pump manufacturers offer a range of products with different specifications and displacements (volume discharged per revolution). These pumps are matched to specific application processes to optimize system capacity and price.

ILC pump usage precautions

Gear pumps are suitable for various industries and handle a wide range of media. These gear pumps offer advantages such as robust construction, easy installation, simple disassembly, straightforward maintenance, uniform and continuous flow, minimal wear, and long service life. 1) During the use of gear pumps, frequent greasing is required. Since lubricating grease evaporates relatively easily, attention must be paid to replenishment and replacement. Additionally, keep the bearing area clean. 2) When using or after using the electric oil extraction pump, store it in a dry, non-corrosive, and clean environment. 3) Regularly inspect and maintain the gear pump during use. Check the electric oil drum, including the power cord, internal wiring, plug, and switch, to ensure they function normally. Inspect bearing components for any damage. 4) Preserve every component of the gear pump. During disassembly and inspection, keep all parts clean and stored properly.

ILC pump maintenance

When using a gear pump, wear on the gear pump is inevitable, leading to various issues. Therefore, it is essential to master the most common maintenance techniques for gear pumps. This enables accurate diagnosis of problems. The routine maintenance techniques are as follows:1) Maintenance of the working surface: If the wear on the pump cover's working surface is minor, you can manually remove the wear marks by lapping. Place a small amount of valve grinding compound on a surface plate or thick glass plate, then lap the pump cover on it until the wear marks are removed and the working surface is flat. If the wear depth on the pump cover's working surface exceeds 2 mm, machining followed by lapping should be used for repair.3) Maintenance of the drive shaft bushing bore: The repair method for wear on the drive shaft bushing bore in the pump cover is the same as that for the housing's drive shaft bushing bore. Repair of the pump housing bore: After wear occurs in the pump housing bore, it is repaired by inserting a sleeve. This involves boring out the inner cavity and fitting a cast iron or steel sleeve. After inserting the sleeve, bore the inner cavity to the required dimensions, and grind the sleeve flush with the pump housing mating surface.Maintenance of the valve seat: Pressure-limiting valves come in two types: ball valves and plunger valves. After the ball valve seat wears, place a steel ball on the valve seat and gently tap the steel ball with a metal rod until the ball valve seats tightly against the valve seat. If the valve seat is severely worn, ream to remove the wear marks, then use the above method to achieve a tight seal. After the plunger valve seat wears, apply a small amount of valve grinding compound for lapping until a tight seal is achieved. The above describes basic component maintenance for gear pumps. During application, other different problems may arise, requiring careful analysis to identify the root causes.

Weidou Intelligent Technology specializes in selling German ILC gear pumps, ILC gear pumps, ILC diaphragm pumps, ILC centrifugal pumps, ILC piston pumps, ILC vacuum pumps, ILC screw pumps, ILC submersible pumps, ILC peristaltic pumps, ILC lubrication pumps, ILC vane pumps, ILC metering pumps, ILC hand pumps, ILC barrel pumps, ILC cam pumps, ILC booster pumps, ILC liquid pumps, and ILC air pumps. All products are original imports from Germany. Customers are welcome to inquire and place orders.