Thank you very much, I also bought a 50/55a Vodomet, but this is how my system was laid from a well: arr. valve - to the house PND-32 (in total from the well to the house 4 m and down into the well below the mirror 4 m) - connection through an adapter for 32 propylene (since underground the HDPE was cut short) further to the Crab. I want to connect the Crab to an American connection on both sides. I haven’t hung it up yet - I’m asking for advice from those who installed it. And another question: was the diameter of the Crab pipe narrowed by 20 to the consumer? Thank you.

PS: the system is not assembled yet, everything is in boxes.

The crab's installation is very simple, and it was this circumstance that played a decisive role in choosing “what to buy.” I hung this crab on my neighbors in the country, I myself had everything assembled separately (tank 50, five-piece, filter, pressure gauge), so I fully felt the difference in installation. Placing crab is easier and faster, and much faster.
If there are two American women, bet two, you won’t regret it.
The fastening is very simple: we take it out of the box, loosen two clamps, pull the tank out of the mount, hang the mount itself on the wall, insert the tank and tighten the clamps, then attach it. In the crab both join with internal thread 1 inch
When marking the wall mount, leave space at the top so that you can pump air into the tank, if necessary (nipple at the top of the tank).
Where I placed the crab there were not many consumers: SM, shower, water heater for dishes and one faucet for the street. All this was routed before me with a 1/2 and 3/4 galvanized pipe and was powered by 80 liter barrel in the attic through a black 3/4 pipe. This worked for 10 years, or even more. Each outlet had its own tap. The funny thing is that all the taps had to be removed and put back in place, because from the pressure they all began to flow at the connection points (but did not flow from the barrel)
From the crab to 3/4 of the pipe there is the same 25 HDPE as from the well with a transition to 3/4 at the point of connection to the pipe.
In general, my opinion is that the crab is needed to simplify installation, if not for problems with leaks, then the entire installation would have taken 20 minutes, but it took almost 4 hours to tinker.

P.s. I'm not a plumber, but it was entertaining and exciting. I like it. now I wonder how the crab will behave in winter unheated room with drained water. With my system, I managed to achieve decent results only after three winters.
First, a metal-plastic pipe ruptured and ball valve, on the second, the five-piece burst and the pressure gauge died, on the third, another ball valve closed. Now in the fall, before shutting down, I blow the entire system with air from the compressor, leaving all the ball valves in open state, and I take off the pressure gauge and take it home. With this situation, 4 winters the flight is normal.

The pressure switch is part pumping station, which is responsible for starting and shutting down pumping equipment when a certain pressure is reached in the hydraulic tank. As a rule, when purchasing a pumping station, the pressure sensors are set to factory settings. As a result, the unit, adjusted by the manufacturer, responds to certain indicators to start and stop the pump. Typically, the factory settings for turning on are set in the range of 1.5-1.8 atm, and the settings for turning off the device are triggered when the pressure falls in the range from 2.5 to 3 atm.

But sometimes, for more efficient operation of the station under certain conditions, it is necessary to change the device settings. In this case, the pressure switch of the pumping station is adjusted. From our article you will learn how to do this yourself, and the video at the end of the article will help you understand the process more clearly.

So that you can correctly adjust this relay with your own hands, you should understand the features of its design and understand the principle of operation of the unit.

The pump station pressure switch is metal base, on the top of which there is a fixed contact group, two spring regulators of different sizes and a terminal block. A membrane cover is attached to the bottom of the steel plate, under which there is a steel piston and the membrane itself, as well as a quick-release nut for fixing to the adapter installed on the pumping equipment. All these parts are covered with a plastic cover. This in turn is attached to the screw part of the large regulator. This cover can be easily removed if necessary using wrench or screwdrivers.

As a rule, relays in water supply pumping stations may differ in configuration, shape and location of individual elements, but usually they have the same design as we described above. Sometimes the relay can be equipped with additional elements that allow you to protect the unit from running “dry” and protect the motor from overheating; for this, the device will measure the temperature of the pumped liquid.

The operating principle of this device is as follows:

1. Under the influence of water pressure coming from the pumping equipment, the membrane, due to an increase in air pressure in the second chamber, presses on the piston, which activates the contact group.
2. This group is mounted on a steel platform equipped with two hinges. Depending on what position it takes, the contacts through which the 220 V voltage is supplied to the pump unit can close or open, thereby causing the pump to start or stop.
3. To balance the piston pressure, a regulator spring is used, acting on the platform for installing the contact group. The compression force of the spring is adjusted using the appropriate nut.
4. As the amount of water in the system decreases due to consumer consumption, the air pressure in the water supply tank drops. As a result, the spring, overcoming the influence of the piston, closes the contact group, which leads to the start of the pump.
5. As there is more water in the tank, the air pressure increases. This leads to the fact that the piston gradually displaces the platform with contacts, despite the resistance of the spring. However, the contacts do not open immediately, but after the platform is displaced a certain distance. This value depends on how much the second small spring is compressed. It, like the large spring, is located on the rod with a nut. As soon as the contacts open, the pumping unit stops working.

It turns out that in order to adjust the switch-on pressure of the water supply unit, it is necessary to correctly adjust the compression force of the large spring. The pressure regulated by this element is also called lower. To adjust the upper pressure in the water supply system, it is necessary to adjust the operation of the small spring. The compression force of this element allows you to set the difference between the shut-off and switch-on pressures.

Adjusting the pressure switch of the pumping station may be necessary if the owner’s factory settings do not work or they are lost. However, before proceeding with the adjustment, it is necessary to properly prepare the storage tank.

Preparing the hydraulic tank

Hydraulic tank, storage tank or a hydraulic accumulator is a sealed tank consisting of two parts. In one part, in the form of a rubber bulb, water accumulates. And the other part is the space between the walls of the pear and inner surface a hydraulic tank into which a certain amount of air is pumped.

Since water accumulates in the pear, it is connected to the water supply system. Pumping air into the second chamber can be done using a conventional automobile pump. Thanks to this air, the pear is compressed with water, which helps maintain a certain pressure in the water supply pipes. Thanks to this, after opening the tap, water moves through the pipeline under pressure without turning on the pump.

Attention: if you incorrectly select the air pressure in the hydraulic tank, you will not be able to achieve optimal system operation.

An indicator that is too high or low can lead to frequent starts and stops of the pump, which will negatively affect the life of the device. A lower value can lead to excessive stretching of the bulb and its rapid failure.

Hydraulic tank preparation sequence:

1. Before pumping air into the hydraulic tank or before checking the indicators, it is necessary to drain the water from the pipeline. To do this, you need to open the bottom tap. As a result, the pear in the storage tank will be empty.
2. Now you can pump air and check the pressure. It should be 10 percent less than the lower figure. If you have not yet configured the system and do not know what the lower value should be, then the adjustment is done like this:

• if the volume of the hydraulic tank is 20-25 l, then set the pressure within 1.4-1.7 bar;
• with a storage tank capacity of 50-100 liters, the indicator needs to be set in the region of 1.7-1.9 bar.

Important: do not leave the accumulator bulb without water for a long time. This can cause its walls to dry out or stick together. The air pressure in the hydraulic tank must be checked every month.

Relay settings

At correct pressure air in the storage tank and clean filters, you can begin setting up the water relay in pumping unit. We carry out the adjustment work in the following sequence:

1. After turning off the pump, we drain the water from the pipeline. To do this, open the bottom tap in the system. Using a screwdriver or wrench, remove the cover from the relay.
2. We turn on the pump, which will pump water into the system.
3. When the pump unit is turned off, it is necessary to record the pressure gauge readings. This way you will know the current upper pressure.
4. After this, it is worth opening the tap slightly, which is located at the highest point of the system. If you have a single-level system, then open the valve furthest from the pump. When the pressure drops to a certain value, the pump unit will start again. You should note the pressure gauge readings at the time of startup and record them again. This will help you find your current lower pressure. Subtracting the results obtained, you will get the pressure difference to which your relay is configured. In addition to recording the readings, evaluate the pressure from the open tap (the furthest one in the system).
5. If the pressure is insufficient, then the lower pressure must be increased. To do this, the unit must be disconnected from the power supply and tighten the nut on the large spring. If you need to reduce the pressure, then the spring should be loosened.
6. Let's move on to setting the pressure difference, which you have already learned by subtracting the found indicators. Optimal values ​​should be within 1.4 atm. If your result is less, then this may give you a more uniform flow of water, but more frequent pump starts. This can lead to premature wear of the unit. If your result exceeds the optimal indicators, then the work will take place in a more gentle mode, but the difference between the extremely high and low pressure will become noticeable. To adjust this parameter, you need to turn the nut on the small spring. To increase the pressure difference, it is necessary to increase the compression force. Loosening the spring will cause the opposite effect.
7. After making the adjustment, it is worth checking its effectiveness. To do this, the water is drained from the system again, power is connected to the pumping equipment and the unit is started. Further actions repeat until the relay settings suit you.

Attention: the second (small) spring is very sensitive, so its adjustment should be carried out very carefully, tightening the nut a small turn.

Initial setup

If the springs on your relay are completely weakened, you will have to make the adjustment from scratch. In this case, the work is carried out in the following sequence:

1. They start the pumping equipment and build up pressure in the system to a level where the water pressure from the tap farthest from the pump becomes more or less acceptable to you. Let's assume that measuring device showed at this moment a value of 1.5 bar. We turn off the pump.
2. Now you need to disconnect the pumping station from the power supply, open the cover on the relay and start tightening the nut on the large spring until a characteristic click is heard, indicating the contacts are closed.
3. The relay cover is installed in place and the pumping equipment is started. In this case, the pressure must be increased to 2.9 bar.
4. Now the unit needs to be disconnected from the power supply again, open the cover on the relay again and tighten the nut of the small spring until a click sounds when the contacts open.
5. After the settings have been made, the relay will operate at a lower pressure of 1.5 bar and turn off the pump at an upper pressure of 2.9 bar. We return the cover on the relay to its place, and connect the station to the power supply.

Video instructions for adjusting the pressure switch of a water supply unit with your own hands:

When installing a water supply system for a private home, users are faced with the need to automate processes. To save money and time on installation work, the Jlex company has developed a complex element called the Crab.

The Crab system is used to maintain the required pressure, turn on and off pumping equipment in the water supply and filtration section.

1 Main system elements

Gilex Crab is installed in a pumping station. The complex consists of the following nodes:

• hydraulic distribution housing, consisting of dense plastic with a tap and valve;
• capacity of fifty or twenty-four liters, depending on the model. The container is protected from corrosion by a steel case with an anti-corrosion glass-ceramic coating;
• water purification filter with key for installation work and cartridge;
• two fittings;
• mechanical pressure gauge;
• relay automatic type, which is used for setting up with an electrical connection;
• electric wire;
• cord for connecting to the network;
• device for fixing the installation.

1.1 What are the advantages and disadvantages of Gilex automation?

The device has its advantages and disadvantages. Advantages:

• the presence of a socket at the pressure switch saves money and time;
• used for surface and submersible pumps, the power of which does not exceed one thousand W;
• built-in components in the structure simplify installation and reduce the time spent on connecting additional elements;
• no need to install a check valve and tap;
• the possibility of water entering the tank on the right and left simplifies the installation of the device;
• the presence of a reminder about changing the cartridge is another plus of the unit;
• cost savings of twenty-five percent compared to purchasing parts separately;
• warranty period is two years.

Flaws:

• if the flange breaks, all built-in components may fail;
• lack of idle protection;
• The cartridge's performance is enough to use one faucet. When two taps are used simultaneously, the quality of cleaning decreases.

1.2 Varieties

The automatic Crab unit is divided into two models:

2 Installation

Before installing the wall Crab, you need to make sure that the wall can withstand maximum load. The wall must be load-bearing.

Holes for the mounting bracket are marked and drilled on the wall.

Applied to the wall fastener, dowels are inserted into the hole and screwed using screws.

Fastening is made to the fastener using a steel clamp. Installation is carried out in accordance with the direction of the arrows on the housing. If it is necessary to connect to the pipeline on the other side, you must rotate the device. For these purposes with reverse side the housing has a plug.

The crab is connected to the pressure pipe.

When the pump is turned off, the pressure in the system is maintained thanks to the built-in check valve.

To prevent air from entering the system, a check valve is installed on the outlet pipe.

After immersing the pump in the liquid, the pump is connected to the pressure switch.

Upon completion of installation and testing of the connecting elements, the Crab is connected to electricity.

After the completed manipulations, the system is ready for operation. When the tap opens, water flows into the tap with good pressure. When the tap is opened, the device will supply liquid by turning on and off the pump as needed.

During operation, filters must be changed. The change process consists of the following points:

2.1 Breakdowns and their elimination

During operation, problems arise that can be resolved independently:

• The pump runs constantly without stopping. The reason is low mains voltage, the filter is full, the relay is adjusted to high pressure. To eliminate it, it is necessary to adjust the pressure, install a stabilizer, replace the filter;
• the pump does not turn on. The reason is the lack of voltage, the connection to the plug is interrupted or damaged. To eliminate the voltage, check the connection or change the connection to the plug;
• the pump turns on more often than necessary. The reason is deformation of the tank or membrane. To resolve this, contact specialists;
• presence of air in the system. The reason is the absence of a check valve or air entering the Crab. To eliminate this, a check valve is installed and the leaks are checked.

2.2 CHECKING GILEX CRAB AT A DEMONSTRATION STAND (VIDEO)

2.3 How to decide on the choice of model?

For selection required model you need to know how many water intake points will be located in the residential premises. Water intake points include shower, faucet, toilet, washing and Dishwasher. When the number of residents is up to three and with the likelihood of simultaneous use of a maximum of two points, select a model with a twenty-four liter tank. If the number of residents is more than four and the simultaneous use of two or more points, select a model with a 50 liter tank.

2.4 Cautions for use

Due to the ease of installation and filter replacement, the Crab is suitable for household use and service. The crab is easy to set up even for non-professionals. A properly adjusted device will serve for a long time without malfunctions and provide a constant supply of water to the taps and household appliances. An automated system replaces a pumping station with significant savings cash for the purchase and installation of additional elements.

Reading time: 3 minutes.

Gilex Crab 50 and Gilex Crab 24 are systems for automated turning on and off of a pump in a well. Presented system domestic production, supplied at Russian market with an original warranty of up to two years.

Gilex automation provides the opportunity to support set pressure in a water pipeline with liquid filtration. Thanks to this, the adjusted Gilex Crab in the best possible way simplifies automatic system water supply of main water networks. Automation of equipment operation occurs immediately when it is connected to a pump of any type.

What does the Gilex Crab system consist of?

The described Gilex Crab system of series 24 and 50, which is installed on a pumping station, can be used from a 220 V network, which makes it even more convenient to use. Due to its relatively inexpensive cost, compared to imported analogues, it is often used to provide water supply in dachas and private homes in Russia and the CIS countries.

The components of the design are:

1. A 50-liter hydraulic accumulator, hidden in a casing made of durable steel with glass-ceramic enamel that protects the metal from corrosion.
2. The hydraulic distributor body is made of reliable plastic with a ball valve and.
3. Pair of fittings with G 1-B thread.
4. Water filter with replaceable cartridge with a key for installation and dismantling.
5. Automatic relay, which makes it possible to configure the device to operate at pressure RDM-5 with electrical connection to the power supply and network of the pump in the well.
6. Mechanical pressure gauge.
7. Electrical wire.
8. Cord for connecting to electrical network pump
9. Bracket for securely fastening the structure.

Reliable assembly of the structure ensures the operability of the equipment, additional adjustment of which is not necessary and even provides the ability to connect Gilex anywhere waterway regardless of the direction of water flow.

Advantages of using the Gilex Crab system

Users leave only positive reviews about the work of Gilex Crab, recommending it to all summer residents and owners of private houses. When evaluating equipment, the following advantages of Gilex over equipment of the same type are indicated:

1. They can connect to 4 power supply points at once.
2. The equipment can be installed at any pumping station.
3. The device is characterized by high efficiency in the use of energy resources (approximately 25%).
4. It can be used to change the direction of water flow by 180 degrees.
5. The pre-set Gilex crab can function at different pressure levels.

System installation and configuration

Also automatic pumps have the ability vertical mounting on the wall using a clamp.

Thus, Crab allows you to significantly reduce energy costs when operating the pump, and it is much easier to install an automatic water supply system in a private home. It contains everything necessary elements to adjust the automatic operation of the system.

For the equipment to start working, it only needs to be connected to the pump. When adjusting the operation of the system, please note that it can only be used at temperatures from +1 to 35 degrees.

Checking Gilex Crab on a demonstration stand (video)

Gilex CRAB(Comprehensive Solution for Automation on the Tank) is an automatic system for maintaining a given water pressure in the main with its preliminary filtration. CRAB Gilex system performs automatic switching on and turning off the injection pump depending on the pressure setting in the water main while simultaneously filtering the water from harmful impurities.

Complex systems have been developed and manufactured at the Russian Jileks LLC in the city of Klimovsk under the Jeelex brand in 2 configurations:

• Gilex CRAB 50 with a tank capacity of 50 liters;
• Gilex CRAB 24 with a 24 liter tank.

Automation CRAB 50 And CRAB 24 are no different in their composition and characteristics.

Features of the system and its advantages. Advantages and disadvantages

All Gilex CRAB system kits constantly receive the most positive feedback from our customers.

Advantages of using the CRAB system. Pros:

• The minimum number of automatic elements for controlling the operation of the pump;
• There is no need to pre-set the pump or other equipment before putting the CRAB system into operation;
• Possibility of connecting an automatic system on any section of the water main without taking into account the direction of water flow;
• Ability to work with single-phase pumps of all types;
• Installation energy saving up to 25%;
• Simultaneous connection of several sampling points (for models KRAB 24 - 1-2 points, for KRAB 50 - 2 or more);
• Simplicity and reliability of design;
• Availability of built-in ball valve and check valve;
• Versatility of installation;
• Availability of water reserve in the hydraulic accumulator;
• Availability of an adjustable pressure switch;
• Availability of a mechanical water pressure gauge;
• Environmentally friendly application pure materials in the design of hydraulic accumulators and automation and filtration systems;
• Availability of a special calendar scale for determining the time of filter replacement;
• Obtaining water that is free of impurities and suitable for human consumption.

Minuses:

• Mandatory compliance with the rules for installing the RCD socket and fuses when connecting the system to the electrical network by a qualified electrician;
• The system cannot be used at temperatures below +1 C and water temperature in the main +35 C.

The main elements of the complex and their interaction

The Gilex CRAB 50 (CRAB 24) automation kit is assembled from several interconnected design elements:

The hydraulic accumulator (1) is made of steel coated with anti-corrosion enamel, inside it is equipped with a removable butyl rubber membrane (2) and an air pumping-bleeding nipple (3);

The plastic body of the system machine (4) has a connection point for the membrane tank flange and external thread for connection with the nut of the plastic flask of the filter cartridge (10). There are also threaded fittings with a 1-inch internal thread (5), an emergency ball valve (6), check valve(7) and mechanical water pressure gauge (8);

Main automated unit system - the pressure switch (9) has electrical outlets for its own recharge from a single-phase alternating network of 220 V and power supply to the electric pump;

Special plastic key for removing the flask with filter elements (11);

Steel clamp with bracket for fastening the entire set in a vertical position (12);

Plastic playground for attaching a dating scale with a slider for fixing the filter replacement date mark (13);

¼ (14) and ¾ (15) inch bronze plugs allow water flow to be reversed;

Power cable with a plug for connecting the automation to the network (16) and a separate socket cable (17) for connecting the pump.

The Gilex CRAB 50 (CRAB 24) automation system will automatically turn on the pump through a pressure switch if the pressure in the house’s water supply line drops beyond the lower configured threshold. This will cause the pump to begin replenishing the system with water. If there is no water flow (the taps are closed), the pump fills the membrane tank until a pressure in the line is created equal to the upper setting threshold. The pump is switched off. When the supply taps are opened, water flow from the accumulator begins, which will lead to a drop in the water pressure in the main line to the lower set level - the relay will turn the pump back into operation.

Simultaneously with the automation of the process of turning the pump on and off, the kit drives the supplied water through the filter element in the flask. Thus, the water entering the taps is cleaned of harmful impurities and becomes suitable for drinking.

Contents of delivery

The delivery set of Gilex CRAB 50 and CRAB 24 includes:

1. Diaphragm tank for 24 or 50 l - 1 pc.
2. Mechanical pressure gauge – 1 pc.
3. Special key for removing the filter element flask – 1 pc.
4. Filter flask with cartridge – 1 pc.
5. Pressure switch – 1 pc.
6. Fastening system clamps – 1 pc.
7. Power cable with socket for connecting the pump – 1 pc.
8. Power cable with plug for pressure switch – 1 pc.
9. Date scale for filter replacement – ​​1 pc.
10. Operating instructions – 1 pc.
11. Transport container – 1 pc.

Installation and connection procedure

The Gilex automatic kit is attached to vertical wall using a bracket with clamps. Hanging system designed for the weight of the entire structure, taking into account the filling of the tank with water. To do this, select suitable wall so that it can withstand such a load. Attach the bracket to the wall and make marks for drilling holes for mounting dowels (screws).

Install the bracket on the wall and secure the system tank in it using the steel clamps supplied. On the mounting of the hydraulic accumulator to the system there is an arrow in the direction of water flow. It is necessary to orient the system in the desired direction to the common highway. If there is a need to change the position of the system, it is enough to simply turn the system in the desired direction.

All pipes in the system do not require additional insulation from leaks, since they have rubber seals.

Instead of plugs you can install additional elements home water supply automation from the Jeelex brand.

To prevent air from entering the line when the pump is stopped, you need to install an additional check valve behind the outlet pipe of the pumping element of the system.

Install the pump as recommended in its instructions. The source of electricity for it will be the socket of the automated complex. Check all CRAB water connections. Now you can connect it to a 220 V network via a cable with an electrical plug. All. You can use the system in automatic mode and always have clean water at the selected pressure.

Mechanical adjustment of the CRAB pressure switch is carried out according to the operating instructions for the complex.

Possible malfunctions and their elimination

Main selection criteria

The automated CRAB system is suitable for use in combination with any single-phase household pumps. The difference between the KRAB 24 and KRAB 50 models is only in the volume of hydraulic accumulators and the possibility of connecting disassembly points. Systems with a 24 liter tank can have up to 2 sampling points, 50 liter models - from 2 or more water outlets. There are differences in the weight of structures. The CRAB 24 is lighter than the CRAB 50 by exactly 4 kg due to the size of the tank. The automation systems of these systems are absolutely identical.

How to buy Gilex CRAB in Minsk

Automated systems submissions clean water Gilex CRAB 24 and Gilex CRAB 50 have the highest rates of positive feedback from our customers from all over the country. All this is due to their simplicity of design and reliability of the elements in operation.

If you are planning to buy a Gilex CRAB automatic water supply system, then contact our online hypermarket website and, without leaving your home, order any model from our consultant. All you have to do is choose which model to buy for your farm, CRAB 50 or CRAB 24. In any case, you will be happy with your choice!

You can place your order from any city in Belarus and easily buy Gilex CRAB 50 in Minsk with delivery to your address. Buying a comprehensive automation system for a CRAB tank in our store is always a win-win!