Problems with the water supply inside the apartment along the main line after an emergency tap are not so terrible. The owner can always turn off the supply. But what to do if, for example, a closed emergency tap jams, and it all happened on a non-working day? You'll have to sit without water until Monday, or... An interesting solution was proposed by the author of one of the YouTube channels, Alexey Dolgov. In today's article we will talk about how to change an emergency water tap under pressure.
An unpleasant situation, isn't it? PHOTO: newsmr.ru
Description of the problem
Ball-type valves are improved in design compared to the valve type, but they can also fail.
The reasons may be:- The appearance of scale on the ball element, as a result of which the fluoroplastic seals wear out;
- Breakage of the rod that turns the mechanism;
- Damage to internal parts;
- Ball valve wear.
This may occur due to poor quality of metal and parts, as a result of the manufacturer’s savings on materials, unclean water in the system, etc.
Sometimes a plumbing product breaks down at an unpredictable moment, then you need to choose the right method for repairing pressure taps.
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Types of ball valves
Cranes differ from each other primarily in their purpose. Some of them can be used to work with cold water, others to work with hot water. The purpose of the cranes determines their design features. Some models of cranes are collapsible, others are detachable. PP taps with a detachable design are installed where the question of disconnecting it from the network may arise. By the way, the connector can be installed on one or both sides of the valve body.
When connecting a collapsible tap, union nuts are used. They are installed in systems where fittings made of metal are used, in steel pipelines and next to heating radiators.
Collapsible propylene taps have two designs - straight and angular. If everything is clear with straight taps, then the advantage of corner taps is that they are connected to the main line directly, without the help of auxiliary couplings. This design not only facilitates installation, but also increases the maintainability of the product. Thanks to the design of the valve, it can be quickly disassembled and repaired.
Manufacturers produce valves in different colors. Moreover, at the manufacturing stage, color markings are applied to the body, which can tell what a particular faucet is intended for. For example, a blue stripe indicates that the product is designed for use in cold environments.
Product replacement
Here are brief instructions on how to change a pressure tap. First you need to prepare some containers for water for the most unforeseen situations.
If there is a toilet or sewer service hatch nearby, you can use them with a hose to drain the water.
The use of radiators in autonomous heating systems
If we are talking about connecting housing to small autonomous boiler houses, special meters are installed to record the heat consumed. In order to use resources efficiently and not overpay, it is recommended to install control valves in apartments during the installation of heating radiators and underfloor heating systems.
There are two types of shut-off and control valves - valves and valves.
When using a valve for bimetallic radiators, preliminary adjustment is performed manually, and further operation of the system occurs automatically. The valve is regulated by a thermostatic head, which reads the room temperature. If the battery is to be installed in a wall recess, or heavy complex curtains are located nearby, a remote sensor is installed for ease of valve control.
Typically, the battery is connected using two locking devices. A valve with a thermal head is installed on top, and a shut-off valve for the heating radiator is installed on the bottom. The valve shut-off rod is usually covered with a special plug.
Please note that turning off the tap for the lower connection of heating radiators is performed only in some situations. In this regard, the shut-off valve stem is always raised to its maximum height, and it can only be moved with a hexagon
Dismantling
As already mentioned, there is a high degree of risk in this process, since the base of the faucet may crack or even burst when unscrewed. This occurs due to strong water pressure.
The valve handle can be removed by unscrewing the fastening nut. Then you need to adjust the gas or adjustable wrench to the size of the faucet edges.
After adjusting the tool, you need to unscrew the tap in the opposite direction clockwise, while holding the riser outlet. The final turns of the thread can be unscrewed by hand, because further the unscrewing resistance will become easier.
After unscrewing the tap, you need to prepare some kind of container and hose so that there is somewhere to drain the water.Material of manufacture
As for the material, you should pay attention to the two most commonly used options:
Brass
High resistance to mechanical stress. Withstands any careless handling and survives the most extreme situations.
- High resistance to temperature changes
. Calmly withstands the pressure of hot water and does not deteriorate in the cold. - Ease of installation
. easy to install and dismantle. - No corrosion processes
. Most other metals cannot boast of this property.
Plastic
Polypropylene is a relatively new material, which, despite this, has already managed to take a strong position in the plumbing industry.
Plastic taps boast the following advantages:
- Low cost. Plastic products are always cheap, especially when compared with their metal counterparts.
- Low weight. Due to this, there is no pressure on the pipeline.
- Reliability of joints. The plastic pipeline is installed using a special soldering iron, which guarantees complete tightness. Although it should be taken into account that there are also classic models with threaded connections.
- Neutrality to the aquatic environment - does not rust and does not change the taste of water.
- Durability. Polypropylene decomposes no earlier than after 200 years.
But there are also some difficulties that you need to be aware of when choosing shut-off valves from this material:
- Weak resistance to mechanical stress. The plastic may crack under severe physical stress.
- Fear of high temperatures. Polypropylene begins to deform already at +95 degrees Celsius.
Therefore, depending on the conditions in which your water supply system will serve, choose which material is more suitable.
Sealing
Before all work, it is necessary to prepare the wound tow and wrap it around the threaded parts of the outlet in a clockwise direction. So, when installing the tap, the seal will not unwind. For the best effect, it is advisable to rub it in place with your hands.
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Installation
Next, you need to screw on the new faucet by hand, making sure that the valve is open. After making a couple of turns, the joint can be pulled together using a key.
Then you need to close the valve all the way, aligning its location in relation to the rest of the structure, and turn the valve handle. The quality of the connection will be assessed by the absence of drops on the threaded joints.
Adviсe
In similar situations, if possible, you need to shut off the water supply to the entire house or in a separate riser. Since you cannot be absolutely sure of the integrity of the threads in the connections, you need to be prepared to cut them again, which will take quite a bit of time. It is very difficult, often completely impossible, to carry out such work under water pressure.
To eliminate the possibility of a malfunction or breakage of the ball valve, it is necessary to develop it twice a month, periodically closing and opening the valve.
You need to choose good quality locking fittings, the same applies to ball valves, since good plumbing products are designed to correct any breakdowns.
If you have no experience or what is not clear, you can look at a photo of replacing pressure taps.
Crane design - general characteristics
The tap (aka mixer) is designed to regulate the water supply to the required temperature. The required water temperature in the tap is achieved by mixing cold and hot water. There are several common types of faucets:
1.
Valve tap 2.
Lever tap
The design of a tap with two valves is quite simple, which consists of:
- main building,
- Two crane axle boxes,
- Spout,
- Two valves.
The valves are located on both sides of the tap and are screwed into special holes. These valves regulate the height of the crane box. The latter, with the help of a rubber gasket at the end, opens and closes cold and hot water through special holes inside the tap.
A single lever faucet can be of the following types:
1)
Ball valve in the bathroom 2)
Ceramic faucet being disassembled
