Cartridges for shower cabins: characteristics, types, selection rules + replacement instruction

Owners of a small bathroom or those who prefer the maximum space when arranging a bathroom, opt for shower cabins. A wide range, versatility and interesting design solutions - all this is embodied in vertical boxing.

Nevertheless, there are also weaknesses, the failure of which will result in a failure of the entire water system - cartridges for shower cabins.

In this material, we will talk about the varieties of cartridges for shower cabins, identify the main criteria for their correct selection, and also give a rating of the most popular manufacturers of accessories for shower cabins.

Varieties of replaceable cartridges

The main structural element of the mixer in the shower is the divertor, mixing water flows of different temperatures and switching to the mode required by the user. Its breakdown destroys the entire supply and adjustment system.

The classification of the main element of the crane is carried out depending on the optional device and the principle of operation.

Collapsible and non-collapsible modifications

There are collapsible and non-collapsible models of cartridges for shower faucets. In the first embodiment, the part is subject to partial repair, namely, lubrication and cleaning of the constituent elements. It is because of practicality that it is better to opt for this form.

In the second option, there is no possibility of opening and determining the cause of the breakdown; accordingly, it will not be possible to extend the operational period.

However, such models fail much less often than previous ones. But they belong to a higher price category.

All mixer operation is based on a replaceable cartridge that regulates the pressure and temperature of the water jet.Depending on the variety of the latter, they differ in configuration, production material and parameters

Ceramic and ball models

All types of mixers are equipped with ball or ceramic (disk) replaceable cartridges. All of them have their strengths and weaknesses. We will analyze each of the types in more detail.

The ball sample is represented by a round adjusting head made of stainless steel. The integral spherical element has three holes: cold and hot water enters the two lower of the water utilities, and a mixed stream flows into the tap of the tap through the third.

On the stock wears the adjustment knob of the mixer. When the ball rotates, the channel passages are shifted, thereby opening up access to cold or hot water, or mixing is performed inside the ball, and a warm stream will already be output.

All grooves are sealed with rubber gaskets. This ensures complete tightness. Therefore, if the valve leaked, it is most likely that there has been a depressurization and it will be necessary to check the condition of the sealing rings.

How to act in the event of a breakdown and a list of the most common breakdowns of ball mixers we described in this stuff.

The mixer with a ball valve-box has the following structural elements: one or two levers, a rod, a housing, a cartridge with openings for water outlet of different temperatures. The ceramic type device is a cylindrical prefabricated part based on two disk-type working elements. Ceramic-metal (oxide with aluminum) plates fit snugly against each other.

The lower one is stationary, and the upper one rotates and is controlled by the rod. There are samples with three plates - in this case, the latter plays a supporting role.

The pivoting action of the lever sets the brass rod in motion. There are models that can rotate 360 ​​degrees around its axis.

The rod, in turn, uses disks that are displaced relative to each other, providing access to water of the required temperature. By tilting the handle, you can control the pressure force of the jet.

The process of manufacturing ceramic cartridges is quite complex: grinding is performed by ultrasound; the washers are sized to fit perfectly. This way prevents leakage between the plates

In the overview version, there are three or more mixing positions, depending on the number of mixer modes. For example, a 5-position cartridge works in the hydrobox.

Unlike the ball counterpart, there is no rubber cuff in the disk divertor, subject to constant friction. Therefore, periodic replacement of the gasket is not required, respectively, the cartridge is deprived of the most vulnerable area.

Thermostatic water-saving fittings

The function of the thermostatic model is to support the required temperature indicator. By means of this product, mixing of contrasting water flows and their adjustment is carried out.

Due to the special anti-burn system in the form of a sensitive thermocouple, the water cannot exceed 38 ° C, which is ideal for families with growing children. Thus, parents are not worried that the child may get burned by opening the tap.

Vernet manufactures Thermo and Yeti series faucets equipped with Sedal thermostatic cartridges with helium thermocouples and a flat diaphragm

The design of such a cartridge does not differ in a complex device: a body, a rod with a spring mechanism and a sleeve with small radial holes.

The mechanism of operation is significantly different from previous analogues and provides the device with a long operational period.

The main part of the cartridge is a thermostatic element that converts temperature changes into mechanical movements. Expanding material is a combination of several types of wax and other components.The composition is selected for each mixer model individually.

When heated, the polymer contents of the body cavity expands and presses on the diaphragm; longitudinal movement is transmitted through the plug to the movable part of the capsule.

The faucet in the shower cabin or the hydrobox with the thermostat is equipped with two cartridges - thermostatic and ceramic. The first is installed on the hot water valve, the second - cold

After the movement reaches the damper and puts it into action. It regulates the flow of water at different temperatures.

In order to avoid strong pressure on the element, if there is a big difference between the compressive forces in the water pipes, a check valve is present in the diverter design.

The safety device supports the diaphragm and allows the plug and stem to slide freely. The retaining spring returns the stem when the temperature drops.

Universal selection guidelines

When choosing a replacement for a faulty diverter for a hydrobox, it is worth considering its main parameters. First, pay attention to the diameter of the device and the dimensions of the stem. Incorrect choice of size can lead to such troubles as noise during operation, tight scrolling of the valve.

Pressure control with such violations will be reduced, and the quality of the crane will be impaired. Because of this, problems arise in the form of a bursting shower hose or the threaded elements of the mixer quickly become unusable.

The main parameters of the divertor: structural features (collapsible or non-collapsible element); the length and shape of the stem seat; shape and number of holes; case diameter

The main aspect of the choice is the number of modes on the mixer. According to this value, the divertor model can have from three or more grooves. If there are inconsistencies, the part cannot be mounted on the crane.

Be sure to take into account the basic parameters of the seating surfaces of the cartridge and brass slot, as well as the length of the latter. Subject to measurements and the diameter of the housing (drum).

For the distribution of water flows in the divertors, a certain number of grooves is provided. However, they can differ not only in the number of holes, but also in their shape. In hydroboxes and shower cabins, samples for 3, 4 and 5 positions are used

According to the technical characteristics, the following divertor parameters are presented in the plumbing accessories stores:

• with a case diameter of 26, 33, 35, 37 and 38 mm;
• rod length can be from 37 to 82 mm, including taking into account the height of the splines.

Quite often in showers you can find faucets with two different types of cartridges. The first device controls the temperature and pressure. By standards, such an element has a stem length of 40 mm.

The second is responsible for switching modes. Based on how many functions the hydroboxing is endowed with - the same number of grooves will be provided by the water valves.

If you are buying a new mixer, you need to ask what divertor it is equipped with and whether there are similar devices in free sale.

Also pay attention to the type of construction - collapsible or cast. In the first case, in case of breakdowns, the part can be disassembled and repaired, in the second - only replacement is possible.

When buying a new divertor, some manufacturers complete the device with additional spare parts. Subsequently, in case of breakdowns, they are used in the repair process.

Despite the extensive model range, it is not always possible to choose the right sample - this applies to older models of shower cabins with non-standard seating in the shape of a square.

However, in some stores this kind of parts can be ordered. Therefore, do not prematurely dismantle the mixer and rush to buy a new one, you may be able to find a suitable control element.

The easiest option for selecting the right model is to remove an unusable part from the mixer and select it with a visual sample. If you didn’t manage to disassemble the faucet yourself, you should refer to the user manual for the shower cabin.

In the manual, the manufacturer describes all the characteristics of not only the main devices, but also auxiliary accessories.

Rating of popular manufacturers

It is also worthwhile to focus on manufacturers on the plumbing fixtures market. It is advisable to give preference to official representatives of the company who have all the quality certificates for the proposed parts. Which of them is trustworthy and, of course, we will consider the ratio of price and quality of their products further.

Having decided on the manufacturer and choosing the necessary divertor model, it is necessary to visually evaluate it for chips and the presence of all components. For convenience, all companies produce elements of water valves in transparent packaging.

Oras - accessories for luxury boxes

Finnish manufacturer of sanitary accessories Oras presents premium products. Cartridges of this brand are equipped with showers with thermostatic faucets.

The product wheels are made of high-quality ceramic, which allows to achieve a high operational life due to the reliability of the design.

Oras ceramic divertors are equipped with expensive boxing units. Most often these are thermostatic faucets produced by the manufacturer. However, in the assortment there are samples of other types

Quite often, Oras plumbing fixtures and accessories are found in the configuration of another Finnish manufacturer - IDO, focused on the production of shower cabins.

For example, the entire range of IDO Showerama hydroboxes is equipped with Oras thermostatic taps and divertors.

Grohe, Hansgrohe and Hansa - German quality

German manufacturers are represented by three popular brands: Grohe, Hansgrohe and Hansa. They successfully combine original design solutions in the arrangement of shower cabins and their functional equipment.

A guarantee of at least 5 years is provided for the quality and reliability of the mixers, however, for some Grohe models the term is 10 years.

Grohe offers accessories for mixers in various price segments. The most expensive price category - ceramic products made of brass with a special coating against lime deposits

The quality of Hansgrohe appliances is almost no different from the previous brand. The main feature is small-sized sanitary products - mostly single-command (single-lever) mixers.

The price range is quite extensive - from economy series to premium exclusive models.

Hansgrohe is focused on the manufacture of thermostatic elements, which are increasingly used in shower enclosures. Mixing units are made exclusively from cermets

The unique design of Hansa mixers distinguishes the company from analogues. The priority area is the introduction of technological innovations in plumbing mechanisms and their details.

Hansa ceramic cartridges are used in the configuration of position switches for shower cabins of the same company. The share of classic two-valve models is insignificant, for the most part these are single-lever mixers

Components manufactured in Hansa workshops have an optimal price-quality ratio. In their production, unique technologies are used that allow preserving factory lubrication throughout the entire operational period.

Thus, lime deposits and rust do not accumulate between the ceramic disks of the product.

Ravak - affordable Czech manufacturer

The Czech company Ravak has been manufacturing sanitary ware since 1991, but the wide distribution of products became possible only in 2004.Popularity acquired during this period indicates a high quality product.

This brand launches bathtubs, shower cabins and hydromassage boxes, as well as the entire necessary range of water valves.

In Ravak hydroboxes, faucets are made of high quality brass with machining and a dense coating of chromium. They are equipped only with ceramic cartridges. The warranty for them is 5 years

The products of this brand combine all the characteristics that are usually required by the user: quality, attractive design and, importantly, a large warranty period.

It is worth noting that Czech democracy was reflected in the price of products; therefore, people of any income can afford the instruments of a review company.

Causes of cartridge problems

Despite the high warranty periods provided by manufacturers of water valves, there are factors that negatively affect their work and prematurely disable.

These include:

1. Poor water quality. In order to eliminate this problem, filter elements are additionally installed, which must be periodically cleaned.
2. Mechanical impact. If you press the crank handle firmly, damage may occur in the form of a broken rod or crack in the cartridge housing.

Since the first negative factor is manifested by raid formations inside the cartridge device, you can try to clean it yourself. It does not matter what type the part belongs to - collapsible or cast.

It will be enough to dip it in boiling water with citric acid and boil for several minutes. If after this procedure, the diverter installed in place continues to flow, then a replacement will be required.

The cause of cartridge failure can be not only a high water hardness coefficient, but also improper handling of the mixer lever. In any case, the locking mechanism must be replaced.

Consider the obvious characteristics of breakdowns in which it is required to change the control unit in the shower cabin:

1. Leak gives roller on switch. In this case, the cause may be a weak fastening in the niche and you will need to tighten the nuts more tightly. If the problem persists, only changing the cartridge will help.
2. No mode switching. Most likely, there was a wedge of the distributor.
3. When the valve scrolls hard and an uncharacteristic crack is heard.

If during the removal of the mixer from the shower cabin any defects are found in the cartridge: cracks, pores - this is also an occasion to buy a new mechanism.

Replacement Instructions

To change the divertor switching modes in the valve of the hydrobox, you must follow the sequence of actions. And the primary task is to shut off the water supply.

Next, remove the pad and unscrew the decorative die located under the lever. Grabbing is best done with a damp cloth so as not to damage the shiny chrome layer.

In addition to the decorative role, the part presses the crane block to the attachment point. Unscrew with a flat screwdriver or hexagon 2.5-3 mm.

The same principle of work and the lower ring, which can be threaded or union type. After its removal, if there are no more fixing elements, the mixer is easily dismantled.

You can use the second option - without dismantling the crane. All actions to remove the decorative plugs and handles on the cartridge rod are performed similarly to the previous method.

The process of replacing the mixing unit in the hydrobox begins with twisting the screw mounts of the handles. Some models of faucets may have decorative caps, so they are initially removed, and then the lever is removed

Using a wrench, disassemble the switch. If the mixer has been in operation for a long time, the metal can become sticky and it needs to be treated with a special compound WD-40 and wait a while.Then, if it does not give in, deepen the screw groove with an ordinary hacksaw and remove the front part.

When reaching the cartridge, to remove it from the valve body, you need to unscrew the large nut from brass. Then it will be easy to remove the part and install a new one.

However, before that, evaluate the divertor seat. If the brass bottom is covered with a corrosive coating and the surface is not smooth when touched, it will need to be cleaned and sealed, having dried first.

Assembly of the crane is performed in the reverse order. It is also necessary to monitor the work performed by starting the crane and sequentially switching modes.

Conclusions and useful video on the topic

The main types of cartridges installed in the hydroboxes, as well as the replacement of water valves with their own hands, are discussed in detail in the plot:

Practical tips for repairing and replacing the diverter in the shower:

Drawing conclusions, we can say that replacing the divertor in the bathroom is not a difficult task. You can perform the process yourself by dismantling the mixer or leaving it in place of fixation, which significantly reduces the time spent on repairs.

However, the main task remains the correct choice of device. To do this, it is better to extract it and select it according to a good example.

If you still have questions or you can give practical advice on the topic of this article, please leave your comments, share your experience, ask questions in the block below.