Unsurpassed Italian quality, practicality, durability at a reasonable price - all this is appropriate when it comes to automatic pressure units from a European manufacturer. Customer focus and continuous improvement are the 2 main principles on which the policy is based. The range of pumping stations is unusually wide and is regularly updated with new modifications.
Design features
The Marina pumping station is a complex installation for automatic supply and distribution of water.
It can be used to lift water from any autonomous sources and reservoirs both into the house itself and into special storage tanks on the site. The standard unit includes the following structural components:
- body – made of steel or cast iron with mandatory anti-corrosion treatment;
- pumping unit, which is responsible for suctioning water;
- a motor that ensures the start of pumping equipment;
- a hydraulic accumulator with a rubber membrane, which is equipped with a pneumatic valve for pumping air;
- pressure gauge for pressure control;
Pumping station design
- a pressure switch that regulates the switching on/off of the station when the pressure level drops and rises;
- a check valve that maintains a certain water level in the system in case of unauthorized shutdown of the pump;
- thermal protective relay that turns off the unit in case of emergency overheating of the engine;
- connecting fittings – adapters and pipes;
- power cord to connect the station to power.
Pumping station “Marina” CAM 88/25
A reliable option for solving everyday problems. It consumes energy resources economically and guarantees greater safety for the pipeline and household appliances, which depend on the availability of water.
Peculiarities:
- stainless steel body made of reinforced steel;
- engine thermal protection;
- good equipment;
- transportability;
- sustainability;
- Possibility of fixing on a horizontal surface.
Technical specifications:
- Motor – 1.1 kW;
- Productivity – 0.06 m3/min;
- Head – 32 m;
- Suction depth – 8 m;
- Hydraulic accumulator – 25 l;
- Weight – 19 kg.
Specifications
Marina pumping stations are presented in a wide range, so there is no need to talk about general technical parameters. Therefore, let’s look at the characteristics of the three most common brand lines: CAM, RSM, APM.
- CAM is a line with the largest selection of models: here you can find both budget units with a power of no more than 700-800 W and a maximum productivity of 50 l/1 min, as well as solid devices with a power of 1500 W and a productivity of over 60 l/1 min. The weight of the station can vary from 12 to 29 kg. But the suction depth for all models is the same - about 8 m.
Pumping station Speroni Marina CAM
- RSM is a line of low-power pumping stations for supplying water over short distances. The suction depth of such devices is small - no more than 7 m. However, the productivity is high - up to 100 l/1 min.
- APM is the most expensive line, represented by pumping stations for pumping water from unusually large depths: up to 50 m. Ideal for lifting water from deeply buried wells and boreholes. The high efficiency of the models is determined by the increased pump power - 1500 W. The average weight of APM devices is 27 kg.
It is fair to note that stations of all three lines share such operational advantages as reliable operation, ease of installation and low noise level.
Pumping station “Marina” APM100/25
A productive and reliable ejector model of the Marina pumping station, which is based on a powerful self-priming pump. Allows you to pump water from wells, wells, artificial containers, the depth of which does not exceed 8 m.
Advantages:
- works with warm water – up to +35 0С;
- can operate in a wide temperature range;
- good electrical insulating properties;
- low noise impact;
- equipped with a pressure regulator, the factory settings of which are never lost;
- equipped with a water flow pre-cleaning filter;
- compactness.
Specifications:
- Power – 1.1 kW;
- Throughput – 0.04 m3/min;
- Head – 32 m;
- Suction – 25 m;
- Receiver – 25 l;
- Weight – 27 kg.
Operating principle
All Marina pumping stations operate according to the same scheme:
- after connecting the power supply, the pump is activated and begins to draw water from the source;
- water fills the hydraulic tank and at the same time the pressure in the system increases;
- when the pressure reaches the maximum level specified by the settings, the relay turns off the pump;
- when the water tap is opened, the liquid begins to move through the pipes from the hydraulic tank to the consumer;
- As water is used, the pressure in the accumulator drops and, when it drops to the minimum level, also specified by the settings, the relay again activates the pump and it begins to pump water again.
The operating principle of the pumping station is very simple.
Such cycles are repeated while the consumer operates the pumping equipment. But even when the station is not in use, a certain volume of water is stored in the hydraulic tank - it acts as a hydraulic shock damper: it extinguishes them at the first sign of their appearance, thereby protecting the unit from damage.
Important! The Marina pumping station must not be used without water or when air masses enter the suction line - operation of the device in both cases is fraught with the occurrence of serious and sometimes irreversible malfunctions.
Connecting the pumping station
The Marina pumping unit is connected according to the following algorithm:
- Locate the pumping station as close to the water source as possible.
- Mount the suction line: prepare a pipe with a check valve and connect one end of it to the inlet of the pump, and lower the other no less than 25-30 cm into the water intake source. The suction line should be located with a slope of 2-3 degrees towards the source. To connect the pipe to the station, use a special threaded adapter.
Advice. For reliability, seal the junction of the suction pipe with the pump inlet using FUM tape.
- Install the pressure line: connect the pipe to the upper outlet of the pumping station.
- Open the filler hole of the suction line and fill the unit with water. After pumping water is complete, close the filler hole.
Connecting the pumping station
- Check the pressure level in the hydraulic tank - it should be within 1.5-2 atm. If the pressure is lower, pump the air through the pneumatic valve with a car pump to the required level, and if it is higher, bleed the air through the same pneumatic valve.
- Connect the pumping station to the electrical network.
Pumping station “Marina” CAM 100/25 HL
A unit capable of operating in “Automatic” mode without human intervention. The user has the ability to constantly monitor the operating pressure via an integrated pressure gauge. The motor with overheat protection function will last twice as long as other motor systems from the world's leading manufacturers.
Advantages:
- cast iron body;
- excellent pressure properties and productivity;
- stable legs that can be fixed;
- high class of electrical protection.
Technical features:
- Power – 1.1 kW;
- Throughput – 0.07 m3/min;
- Head – 32 m;
- Suction – 9 m;
- Receiver – 25 l;
- Weight – 23.3 kg.
Malfunctions and ways to eliminate them
Any equipment, no matter how expensive and high-quality it is, may one day fail. And Marina pumps are no exception here, so we will further find out what malfunctions most often occur with these units and how to solve the problems that arise with your own hands.
Problem No. 1: the station does not turn on. The most likely reason is lack of power supply. Options to fix the problem:
- call the electrical connection diagram;
- clean the contacts;
- Renew the pressure switch coil.
Malfunction No. 2: The pump works, but water either does not flow into the system at all, or flows in only intermittently. Reasons: lack of water in the hydraulic tank; leaks in pipelines; incorrect operation of the check valve. Solutions:
- if there is no water, add it through the filler hole or lower the suction pipe deeper into the source;
- if there is a leak, check the tightness of the joints of the pipes and the pump and, if necessary, update the FUM tape;
- If the check valve is deformed, replace it.
Problem #3: The pump does not turn off. The reason is a failure of the pressure switch. Solution: adjust the relay using its small and large springs - re-set the minimum and maximum pressure values.
You can fix most problems with the station yourself.
Fault No. 4: The pump operates jerkily. Causes: damage to the hydraulic tank membrane; depressurization of the tank body. Correction options:
- press the hydraulic tank nipple - if water comes out instead of air, it means the membrane is deformed and needs to be replaced;
- find the location of the breakdown of the housing and close it with any sealing compound.
So, taking into account all the technical features and characteristics of the Marina pumping station, we can say without exaggeration that this is one of the most worthy units in its category. By following the recommendations for its connection, operation and maintenance, you can reduce the risk of malfunctions to a minimum. And if they do appear, then eliminating them will not be difficult - all the tips and subtleties are in front of you.
Design and principle of operation of the pumping station
- Cable
- Connector
- Tank flange
- Screw
- Pressure gauge(D-40 POST 1/4)
- Membrane 22-24l
- Valve
- Hydraulic accumulator 22l
- Hole
- Lid
- Bolt
- Pneumatic relay PM 5-FG
- Flexible liner 12X18ZN 1/2MX1/2F 240MM
- Pump part
- Cable
- Seal
Stations of the “Marina” type are autonomous pumped storage devices that provide a continuous supply of water and maintain the required pressure in the home line. The system includes:
- a pipe for collecting water from a source with a built-in mesh filter;
- valve that prevents reverse movement of water;
- pump powered by an electric motor;
- control system;
- water storage tank;
- a device that protects the pump in the absence of water.
All elements are installed by the manufacturer on one common basis. This simplifies installation and connection of the station.
The main difference between Marina-type stations is the presence of a water tank, inside of which there is an elastic rubber chamber. Water pumped from an external source fills this flexible container. As the volume of incoming liquid increases, the chamber expands.
In this case, the air located between the outer walls of the tank and the rubber container is compressed, forming an elastic cushion. After reaching a certain pressure, the parameters of which are set by adjusting the sensor, the pump turns off. From this moment on, water is supplied to the home pipeline system due to the pneumatic pressure created inside the tank.
As the consumer draws water, the pressure in the storage tank decreases. Upon reaching the minimum threshold, which is also set by adjusting the control system, the pump is turned on and water is pumped.
Thanks to this scheme, there is no need for constant operation of the pump, which increases its service life and significantly saves energy.
In addition to maintaining the required pressure, the elastic element of the tank dampens water hammer that occurs when the pump is turned on.
The control elements are a pressure switch, which turns on the pump when the pressure drops and stops it when it reaches the maximum level, or an automatic system that responds to the movement of water in the pipeline.
Pumps installed at stations of this type can only operate normally if there is water in the system. When you first start, it is forced to fill. A check valve installed in front of the pump inlet pipe protects against sudden drying when the water supply from the source is stopped.
