during repair or replacement of plumbing and heating system in the apartment, there is the need to purchase and install taps and valves.Their quality and the right choice depends not only our easy to use, but also the safety of neighbors from below, because there is always the likelihood of flooding.To avoid mistakes and unnecessary spending, it is important to understand the pre-design of all plumbing fixtures.Each device has its own features, such as ball valves for water supply are responsible for its regulation and in the bathroom and kitchen.
- main group of ball valves
- Features ball valve design features
- coupling cranes
- advantages of ball valves
- How to choose a quality ball valve
- Set in an apartment
main group of ball valves
consumer can not always determine the purchase of valves and valves, especially under the present range, suitable shut-off valve for the water to buy is not easy.To avoid confusion, th
1. plug valve is more reliable due to their design and high capacity - its section closest to the diameter of a water pipe.This minimizes the formation of turbulence and clogging water.Cork type of crane most expedient in the heating system, as well as in the gas supply system.The main advantages of this species of cranes - no rubber gaskets that are destroyed by the pumped flow.But lapped surface plug valve, made of homogeneous metal eventually skipat tightly, because of what the engine cranking it becomes more and more difficult.Reliable valves becomes useless if it can not be used in case of accident and other cases of forced shutoff.If there is liquid in the water, then leave it on the street and in the winter.
2. Crane type of valve is used to shut off the water when applied to any area of the house or apartment, as well as to prevent leakage or accident.The same device is commonly used to adjust the multi-story water standpipes for general distribution.Cranes valve type, and often work in heating systems, although the valve cross-section of the duct diameter does not coincide with the trumpets, and it is difficult to circulate warm water.The design of the valve provides a tap fracture flow, which accumulates rust, sand and debris.Clogged flow valve hinders the circulation of warm water in the radiator batteries.The gate valve is also mounted in a summer water hose, but in the winter it dismantled.
3. The ball valve is the most reliable by design, based on the design - sleek chrome ball that adheres to other parts and gaskets.He gives the smallest leak after installation, reliably blocking the water.This structure is widely used in mixers, and its opening allows the passage of liquid to provide a hole corresponding to the cross section of the water pipe.This cranes are widely used in the installation of heating, where warm water has virtually no resistance ducts, eliminating clogging and turbulence.In the event of an accident or other need to stop the water supply ball valve ensures the termination of the flow.However, even after the cessation of liquid supply, a certain amount remains in the crane - a feature of its design.The crane of this type of a cavity between his body and the self locking ball, it is important to consider when installing this type of cranes in the outer pipe.
Features ball valves
Today ball valves - the most reliable and common form of regulation for the water supply system, so they are widely used.This form is also used in gas pipelines, oil pipelines and water supply systems for different purposes.Their versatility pushes other cranes - wedge gate valves, conical and cylindrical valves.At the core of the ball valve - a rotating device is rotated by 90 °, and the ball is used as the cut-off water flow valves.It is widely used in the mixers and the feeding of cold and hot water and the heating system of flats.
How kind of pipeline valves and locking valves in the form of a sphere is known for more than a century, but they were not as common - because of imperfections in the primary structure.Modern ball valves ensure reliable long-term work, especially if the products are proprietary, such as from Valvex.With the advent of new technologies, tested alloys and advanced materials, such as synthetic rubber and PTFE ball valves went into the lead, thanks to its simplicity and reliability.
main structural parts of the ball valve to the water:
- turning ball of chrome-plated brass,
- unscrew the housing part,
- ball seal parts made of teflon,
- stem seals made of rubber,
- screw made of galvanized steel,
- swivel arm.
muff Construction crane is a lot like - brass body and chrome plated ball, brass rod, PTFE seals, locking washer and lock nut, clamping nut, lever or handle.
ball valves are opened and closed by turning the lever through a ball left and right, and mixers can be used upside-down.Visually, this is the most convenient because immediately clear how open or close the valve.Their structure is not provided a plurality of rotary moving parts, which minimizes the risk of leakage.
There are also other varieties - flanged ball valves used in manufacturing, utilities, oil and gas extraction.A coupling ball valves widely applicable in the plumbing and heating system, utilities and systems, fluid handling, but it is not suitable for the passage of the abrasive particles.
most simple in design - domestic ball valves for cold water.The coupling to withstand severe pressure, so they are called ball valves for hot water.All varieties have much in common, and the shape of a crane depends on the destination.But all flow goes through the hole, and the overlap of water by turning the lever through 90 °.
in full-bore domestic taps diameter pipe section must match the holes in the world.In heating systems require the device to exit air from the pipes, so set the so-called crane Majewski, equipped with a valve.Crank ball device is a single or double arm "Butterfly."
There are also ball valves with the filter for installation of household appliances such as dishwashers.His removal from the filter is able to prevent the abrasive particles in the expensive imported equipment, designed for maximum water purification.
Also today is the most modern Finnish mixers with external structure in the form of a ball, which is governed by a simple movement of the water temperature, pressure and force.It is very convenient, but they are more difficult for the internal device.They are also called cranes-American, and they are much more expensive.Holders of such devices quickly get used to this method of regulation of tap water, discarding other types of faucets in the bathroom or kitchen.
Design Features coupling cranes
This kind of ball valves are widely used in industry because they are designed to withstand heavy loads - pressure up to 1.6 MPa and temperature of liquids of about 120 ° C.The optimal material for these valves - brass, and not only for the body but for the world.
often used steel and alloys with chrome - in order to avoid corrosion of metal.Box-type crane conceived so as to match the diameter of the pipe openings and an inner diameter in the product stream to reduce the flow resistance.The valve stem is not in contact with the body, except from sticking due to PTFE gaskets, high pressure and hot environment.
advantages of ball valves
Ball valves are widely used not only for its ergonomic design and ease of use.Among the advantages of these modern locking mechanisms note the following properties:
- compact design;
- reliability and durability;
- efficiency and minimal loss of water;
- ease of control lever;
- high tightness;
- lack of turbulence and dead zones;
- minimum wear of the active depreciation;
- not require additional maintenance and repair for a long time.
How to choose a quality ball valve
Before visiting the store to probresti ball valves for water, water pipe sizes are important - for compatibility section, and the size of the holes in the world.
1. For ball valves for water rates is better to learn by viewing offers from online stores.At the appropriate parameters for cranes write out the marking, dimensions, and all that are interested.All additional information can be found in the building supermarkets, directly from the consultant.This is important, because when it is possible to hold the product in their hands, in addition to visually assess its quality.Considering the retouched pictures on the site, it is impossible to distinguish the original from the road cheap fakes.
2. There must be quality products trade mark, detailed instructions and a certificate marking details.Additionally examine the goods - whether translated into Russian in the basic instructions, this property is licensed sales of imported goods.On the illegal goods are rough translation, distortions in the inscriptions and logos may be missing the release date and country of manufacture.For the quality of the product is no answer.
3. Inspect all surfaces of the product - whether there is a protective coating chipping, cracking, roughness, sagging and exfoliating paint on the pivot arm.At the same quality product anywhere shell thickness, and symmetrical components.
4. When a magnet is possible to understand from a metal ball valve, ideally - brass, imitations often have a steel ball.Also dull mirror surface rotary valve confirms that in the hands of a defective product.
5. Housing good script often made of brass, chrome-plated ball with the exception of mixers.Counterfeit make rather a galvanized or silumin.The protective coating often stsarapyvaetsya inside color of the metal in an ideal light yellow.
6. When buying a tap do not pay attention to the product with the lowest price.It's really a quality product license can not be cheap.Making a purchase, you are obliged to issue a receipt, which will give the right to exchange the tap if found defective.Best of all, when there is a guarantee, which does not give a fake.And be sure to check detailed instructions.
Tip: Increased demand for high-quality ball valves spawned the release of counterfeit products, which are not much different visually, but a very negative impact on the reputation of trusted manufacturers.These ball valves are easily damaged or leaking, and there were times when purchased on the market of the product to crack and fall apart in the hands of plumbing during installation.The most proven product - the official distributors.
Set in an apartment
installation Ball valve is best left to professionals, such as a plumber or competent service personnel distributing company.When possible leakage of the problem, they will be responsible, not buyers.
After installation of the equipment, mixers and cranes, it is important to check the tightness of all connections and carefully open the valve, so as not to provoke a hydrodynamic attack.After installation, it is important to follow the new equipment - if there was a leak.
In operation, problems can arise due to the use of hot tap water, which can damage the locking mechanism of calcium deposits.During repairs, the replacement need only tap lever and swivel head.
Remember that modifications of ball valves are different, so the way to dismantling them is different, it is best left to professionals.The need for replacement or repair of the crane also occurs when an uneven supply of water - it says about the problems of the seals inside the tap.