The German company Al-Ko has existed in the market of trailers, climatic equipment and garden accessories for 90 years. In Russia it represents a line of pumps (borehole, centrifugal, well). The specificity, advantages and disadvantages of Alco drainage pumps for dirty water are aspects that require clarification.
Model range and technical characteristics
Units from Al-Ko, for pumping contaminated liquid, are presented in several models with similar technical characteristics and insignificant differences in design solutions.
- DRAIN 7000 - unit with a capacity of 7 m3 / h, a power of 350 W, a maximum immersion of up to 5 m, a delivery head of up to 6 m; outlet opening - 41.9 mm, permissible liquid pumping temperature - 35º. Dimensions - 11.3x15.1x30.8 cm, weight - 4.4 kg, cable length -10 m.
- DRAIN 7500 is an electrically driven device. Pump parameters, maximum immersion depth and delivery head, inlet diameter, cable length are the same as in the previous model. Differences affect power and performance indicators - 450 W and 7.5 m3 / h. It is used for highly contaminated liquids - up to 5% of impurities and dirt up to 30 mm in diameter.
- DRAIN 7100 Classic with vertical installation for dirty water with a filtering particle size up to 35 mm. The throughput is 7.1 m3 / h. power - 430 W. Equipped with automatic float-type water level control and dry run protection.
- DRAIN 10000 Comfort is equipped with a 650 W motor. When the pump is submerged to a depth of 5 meters, it can raise water to a height of 8 m. With a mass of 5.7 kg, the unit has a maximum capacity of 10 m3 / h.
Models are equipped with a float switch, automatic level control, high-strength stainless steel shaft, polypropylene and fiberglass housing, anti-corrosion protection, universal elbow and combination nipple. The mode of use is mobile and stationary.
- DRAIN 10000 HD is characterized by a power of 1300 W, water supply to a height of 10 meters. The maximum productivity is 10 m3 / h, the permissible immersion depth is 7 m, the size of the filtered mud grain is 38 mm. Features multi-layer sealing, 59.6 mm diameter outlet.
- TS 400 ECO - designed for dirty water with solid particles with a diameter of 30 mm. Power - 400 W, throughput - 8 m3 / h. Weight - 4, 35 kg, plastic case. The impeller is funnel-shaped. The kit includes a universal angle adapter.
The constructions are not suitable for drinking water, salty water and liquids containing sand or harsh chemicals.
The principle of operation and design of submersible drainage pumps Alco for dirty water
The operation of submersible units from Al-Ko is based on the centrifugal principle, in which liquid is sucked in by the lower part of the device, moved and pushed out along the side pipe. The rotating motor transmits movement to the impeller. The movement of the liquid occurs due to the created pressure.
In the list of design features of electric pumps for dirty water, the following are highlighted:
- shockproof housing, sealed connections;
- stainless steel and special shaft treatment;
- funnel-shaped impeller;
- built-in thermal relay protects the motor from overheating;
- float switch adjustable with cable clamp;
- the drainage adapter is characterized by free rotation and cross-section of various diameters.
Taken together, the manufacturer has created a compact and highly functional device. The solution to the problems of pumping contaminated water is not difficult.
Criterias of choice
The correct selection of equipment depends on the knowledge of the required parameters. The focus is on:
- the engine and its power;
- water supply height;
- permissible immersion;
- bandwidth;
- permissible size of suspended particles.
The specified parameters are mandatory for studying when choosing a model of a submersible pump.
Installation features
Structures are used to pump out contaminated water masses from wells, wells, basements. Traditionally, fixtures have been mounted vertically, in which the body is immersed to a certain depth. The nipple must be above the surface.
When connected to the network, work starts automatically and ends when the water level reaches minimum levels. The float switch is triggered.
Advantages and disadvantages of Alco pumps
Benefits of using these submersible devices:
- wide range of models;
- nice design;
- power, reliability, strength, compactness, versatility;
- high performance indicators (7-11 thousand l / h) with low power consumption;
- large diameter inlet;
- complete set with an angular adapter (90º) of a universal type;
- pumping suspended particles up to 38 mm in diameter;
- the presence of a built-in float switch;
- installation variability (stationary, portable);
- minimal production noise;
- complete with combination nipple for standard hoses;
- guarantee of long-term and simple operation.
Among the negative aspects of the aggregates, one can single out the impossibility of all models to cope with large sedimentary rocks.
