2 Marina pumping stations models and specifications
The Marina brand (Italy) manufactures surface and submersible pumping stations for domestic purposes and you can purchase a water, drainage or fecal pump, as well as a special installation for irrigation or fountains. All pump equipment of the manufacturer is divided into two conditional groups:
- Models that work only with clean water - SVM, SCK, SCM, SKM. Equipped with a Marina SCM 100-10 pump or a MarinaSVM submersible pump. The surface pump Marina KS 801/P also works with clean liquid. Only for a clean working environment is the Marina APM 100/25 pumping station with a capacity of 2.4 m 3 / hour.
- Dirty fluid models - TF, STF, ECMDS, SXG. The kit comes with a drainage submersible pump Marina SXG 1100, MarinaTF
Marina pumping stations come in the following modifications: CAM, ARM and RSM. The cost of stations depends on the specific model, pump power and volume of the accumulator.
2.1
Category characteristics
Marina APM:
at stations of this category, an injection or ejector pump is installed, thanks to which the Marina APM 200/25 pumping station raises water from a depth of 50 meters, and Marina APM 100/25 can pump water from a well up to 25 meters deep (equipped with a Speroni APM 100 pump).
marina cam:
These units are based on Marina self-priming centrifugal pumps (Marina CAM 100/A-HL pump, Marina KPM 50 SET pump), so the maximum suction depth is no more than 6-7 meters. This series of stations is the most diverse. The main differences between the models are the performance of the pump equipment and the capacity of the hydraulic accumulator. The capacity of these stations reaches 60 liters per minute.
Thus, the Marina 40/22 pumping unit is made of high-strength cast iron, its capacity is 50 liters per minute, and the volume of the accumulator is 22 liters. Station Marina CAM 80/22HL processes 60 liters of water per minute and is made of stainless steel. The Marina CAM 100/25HL stainless steel pumping station is considered more powerful: the throughput is 4.4 m 3 / hour, and the tank capacity is 25 liters. Pumping stations of this series solve the widest range of household tasks: from watering a personal plot to increasing pressure in the central water main.
Marina RS:
this model range is equipped with multistage pumps that provide a water pressure in the system up to 100 l / min, with a small suction depth (no more than 7 m). Thus, the Marina RSM 5/60 pumping station creates a head of up to 60 m and a maximum suction depth of 4 m. With the help of RSM installations, it is advisable to organize water supply at a close distance of the water source to the point of supply.
2.2
Advantages and disadvantages of pumping stations
All Speroni pump units (Italy) have a number of advantages:
- affordable price;
- small overall dimensions and weight;
- ease of installation and maintenance;
- low noise level;
- do not require constant supervision, since they work completely in automatic mode;
- protected from "dry running";
- it is not difficult to purchase spare parts for the Marina pump - drainage or water.
Along with this, there are also disadvantages of the equipment:
- accumulator flanges are susceptible to corrosion if condensate forms on them. The solution to this problem is to additionally treat them with a corrosion-resistant material;
- it is difficult to regulate the pressure switch, but the user manual helps to cope with this task;
- stations designed to work with clean water must be additionally equipped with a filter, since impurities reduce the life of the equipment.
2 Model range of equipment
The product line of Speroni (Italy) includes 4 series of Marina pumping stations:
- Marina CAM is a budget option for water intake from wells up to 9 m deep;
- Marina APM - pumps for wells up to 50 m deep;
- Marina Idromat - units equipped with a regulator that turns off the pump when running dry.
Let's take a closer look at each of these lines.
2.1
marina cam
The CAM series consists of equipment made in a cast-iron or stainless steel case, with internal fittings made of food-grade polymers. Several models are presented, the power of which varies between 0.8-1.7 kW, and the head is 43-60 m.
The volume of the accumulator can be 22, 25 or 60 liters. These are the most affordable stations for private use, the cost of which starts at 7 thousand rubles.
Among the stations with the best price / quality ratio, we highlight:
- Marina Cam 80/22;
- Marina Cam 60/25;
- Marina Cam 100/25.
The Marina Cam 40/22 pumping station is equipped with a 25 liter hydraulic accumulator, the capacity of which will be enough for a family of 3 people. The capacity of the unit is 3.5 m 3 / hour, the maximum lifting depth is 8 m. The price is 9 thousand rubles.
Marina Cam 100/25 has similar technical characteristics - a tank of 25 liters, a throughput of 4.2 m 3 / hour, however, this model is equipped with a pressure boosting system that significantly increases the delivery head - up to 45 m, compared to 30 m for CAM 40 / 22.
2.2
Marina APM
Well pumps of the APM series have a maximum water intake depth of 25 m (model 100/25) and 50 m (200/25). This is more power and overall equipment, the weight of which can reach up to 35 kilograms. As an example, consider the popular station Marina ARM 100/25.
Specifications:
- head - up to 20 m;
- throughput - 2.4 cubic meters / hour;
- centrifugal motor power - 1100 W;
- the diameter of the supply pipe is 1″.
AWP 100/25 is made in a stainless steel case, the model is equipped with overheating protection and a water level control system in the hydraulic tank. ARM100/25 is designed for pumping clean water, without mechanical impurities, the temperature of which does not exceed 35 degrees.
2.3
Typical malfunctions and repairs
Marina pumping stations have established themselves as reliable and durable equipment, however, like any other equipment, they are not immune from breakdowns. We bring to your attention a list of the most common breakdowns and how to fix them:
- Lack of water supply when the pump is on, the cause of which may be a loss of tightness in the conductive pipelines and a worn check valve. First check if you forgot to fill the pump body with water. If it is, inspect the check valve and the tightness of its fit to the pump nozzle, and also check the condition of the intake pipe - all damaged components must be replaced. Similar problems are possible if the impeller is damaged, to replace which you will need to disassemble the unit.
- Water is supplied in jerks due to a damaged accumulator. The main malfunction of the hydraulic tank is a damaged membrane. To determine if it is intact, press the nipple (located on the tank body), if water flows from the nipple and not air flows, then the membrane is torn. It is quite easy to install the membrane, you just need to unscrew the fixing ring from the tank neck, pull out the old part and mount a new one in its place.
- Reduced water supply pressure. The reason for this can be either a faulty hydraulic tank or problems with the pump. In the first case, the depressurization of the tank is most likely to blame - inspect the body for cracks, repair the detected deformations and pump air up to the standard value. If the tank is intact, the problem must be sought in the deformed impeller of the centrifugal wheel inside the pump.
We will separately consider the situation when the pumping station does not want to work in automatic mode - the unit does not turn off when the tank is full and does not turn off when it is empty. The incorrect adjustment of the pressure switch is to blame here - it is usually calibrated at the factory, but there are exceptions.
The above diagram shows a standard pressure switch for Marina pumps. On it, under the plastic cover of the case, there are two springs. Most of them rotate clockwise, it is responsible for the minimum pressure in the tank at which the station turns on. By rotating a small spring, we adjust the maximum pressure, upon reaching which the pump turns off.
Adjustment of the pressure switch must be carried out with the equipment disconnected from the mains. Before starting the calibration, it is necessary to drain the water from the tank, the level of air pressure is also important - it must correspond to the value recommended by the manufacturer.
