Wastewater, surface water and groundwater are often heavily contaminated with impurities, which interferes with their disposal. Maintaining the proper appearance of the area adjacent to the building requires the use of special equipment. The Karcher drainage pump is designed to pump out liquids containing large particles of dirt.
Model range and technical characteristics
The manufacturer presents a large line of drainers for domestic and household needs of the SDP and SP series. They have secure screw connections to prevent leakage from the system. In addition, the devices have removable filters so that you can pump out the liquid to the lowest possible level.
- Structural features of SDP allow pumping water flow with inclusions up to 20 mm. In this case, the pressure on the weakest unit is 0.5 bar. Each device has: a ceramic mechanical shaft seal; a special system of hermetic fastening for the possibility of simultaneous connection of several hoses to the unit; float switch. Depending on the model, the device can be lowered 7-9 meters. The numbers included in its name indicate performance.
- When developing the SP, the latest engineering achievements were used. The equipment of this series is capable of passing liquid with inclusions up to 30 mm. The design of all devices is identical, with the exception of the SP7Dirt Inox. This is the most powerful device. Its movable strainer allows for adjustment of the parameters of the passed particles, and it also has an individually adjustable level sensor.
- The power of all drains varies in the range of 250 - 750 W. Discharge volume 5.5 - 15 m3 / h. The head can reach 8000 m. The immersion depth is not less than 7 meters.
- Stainless steel models are marked "Inox" and the presence of a breaker is indicated by the "Level Sensor".
The length of the electric cable is standard and is equal to 10 meters. Due to the high quality of assembly and reliability of materials, the Karcher submersible drainage pump for dirty water can be used in difficult conditions with high loads. The company gives a long-term guarantee for the equipment it produces.
Criterias of choice
Flow rate, delivery head, power, throughput and availability of work with large particles, the presence of a heat relay on the motor - all these criteria should be taken into account when choosing a unit.
To make the drainer easier to connect to the system, you need to use special adapters or connectors.
The main emphasis is on the performance of the equipment - the device must work without overloading. The calculation of the capacity in liters can be performed using the formulas:
- Round tank = (D1 x D2 x C) x 0.78 x 1,000;
- Rectangular sump = (A x B x C) x 1,000;
where D1 and D2 are diameters, A is length, B is width, C is average depth.
Efficiency and pumping speed are influenced by the height difference of the liquid surface, the cross-section and compatibility of the hoses, as well as the size of solids, and the location of the suction port.
The company is engaged not only in the production of pumping equipment, but also develops and produces related kits and parts for it.
Installation features
The folded legs and the infinitely adjustable switching level of the units make it possible to remove moisture up to 1 mm from the surface. The control system is automatic and touch-sensitive. In the first case, a float is used, and in the second, an electronic sensor is triggered.
The nuance of the work of drainers is their tendency to overheat. Therefore, it is necessary to ensure that the electrolytic system or the float switch is timely triggered and blocks the operation of the engine.
The higher the level of equipment, the more difficult it is to set up the device. The more powerful models have a professional seal, adapter, hose adapter and air release button. In addition, they can be equipped with a non-return valve and an IMS to equalize the performance according to the working conditions.
Advantages and disadvantages
The units can be used almost around the clock. A plus is the ability to use equipment at the professional level, while they work from a single-phase network.
- The level sensor allows automatic start-up and shutdown of the device, and a removable filter guarantees the possibility of downloading, if necessary, a low position of the suction inlet.
- The intelligent system of remotely controlled vehicles is able to adjust them to the required depth and fluid parameters.
- The devices can pass formulations without pre-filtration with large solid particles.
- The units are guaranteed for 5 years.
The disadvantages include only the cost, which is an order of magnitude higher than domestic devices. However, the Russian or Chinese market cannot offer a similar in quality unit.
The cost of pumping equipment
This brand is a European manufacturer, has established itself from the best side and is in demand among homeowners.
The price of a Karcher submersible drainage pump used for dirty water depends on its modification and available options.
The price range on average starts from 3500 rubles. and grows in direct proportion to the capabilities of the devices. However, performance, low power consumption, ease of maintenance and long life will fully offset the purchase cost.
