Valve valve - the main features of the design and its

02-03-2018

Water supply

Shut-off valves are used in almost all walks of life, and in any home you can find various components for shutting off and adjusting the flow. The question of which valve is better - ball or valve, has been causing controversy among specialists for more than a decade. In this article we will look at the main features of valve structures and see what their main difference from other options.

In the photo: valves for many decades faithfully serve both in the industrial and in the private sector.

Main types of valves

To begin, consider what types of systems are and what are their main advantages:

Gate valves	A very common option that is most used on large diameter pipelines, as it provides high reliability and ease of operation. The locking element can be located in two positions: open and closed, the locking element moves perpendicular to the axis of movement of the flow. The most common types of valves are wedge, slide and parallel
Cranes	They can be of two main types: ball and disk. Disk constructions are also called closures, they represent a valve, the axis of which is located in the middle of the pipe, turning the handle closes the pipeline, to ensure reliability, a clamp may be present in the design. The ball valve has the following features: 90 degrees flow overlaps
Valves	This option is used almost everywhere and is a system in which a valve with a gasket is located on the axis of the device. Its movement up and down allows not only to block the flow entirely, but also to regulate its intensity, this feature is the most important, therefore, valves are in such high demand.

Disk valve can only be used for opening and closing systems

Design features

Many do not understand how the valve differs from the valve, so this issue should be given special attention, we consider the main structural and operational differences, and also touch on the advantages and disadvantages of each of the elements. (See also the article How to Choose a Sink Mixer: Essentials.)

Comparative analysis of the valve and crane

Consider the most important nuances in the form of comparison:

The valve is designed to shut off the flow of the working medium and adjust its intensity, while the valve can only be used in the open-closed positions. Any adjustment using a crane is not only inconvenient, but also undesirable - the design wears out very quickly and fails. That is, the main difference between a valve and a crane in a functional sense is the possibility of adjustment.

So the valve is arranged - the opening and closing is carried out in the direction of movement of the working medium, and not perpendicular to it

The valve and valve can perform the same functions, but their operation pattern is different.. If in a tap a disk or a ball moves on an axis perpendicular to the flowing water flow, then in the valve the valve moves along the axis of movement of the working medium. If the tap can be closed in half a turn, which can be considered a virtue, then the valve will require 5-6 turns, which is not very convenient in the case of frequent use.

Tip! It is very easy to distinguish a valve from a valve, even if you do not understand anything about these types of devices. In the crane, the main control body is a lever or a small butterfly flag, while in the valve the control is in the form of a diamond-shaped handle or in the form of several rings.

The handles at the valves are made so that they are comfortable to turn

The main advantage of cranes is their simplicity, because they are very easy to use.. But if the product is rarely used, the disk or ball valve is covered with a lime scale and eventually stick to the body, which makes it impossible to close or open it. In this case, the only solution is to replace the entire unit, which is not very desirable, since its price is quite high.

With rare use, the ball clings to and the crane becomes unusable.

When choosing between a valve or a ball valve, it is necessary to note one very important thing - the first option can be fixed with your own hands, while the second cannot be repaired. But it is worth noting the fact that the valves have a smaller resource, so from time to time it will be necessary to replace consumables.

What to look for when choosing a valve

In order not to purchase a low-quality product that will quickly fail, you need to remember a few simple recommendations:

It is important to know the size of the necessary units, with plumbers they are designated 1 2, 3 4 and so on. You also need to measure the diameter of the pipe, and the seller will choose the one you need, you should not hope for an eye viewer, because you can make a mistake very easily.
Ideal - the purchase of devices of well-known manufacturers, the quality of which is known to a wide range of users. The necessary information can be gathered from consultations with experts, as well as on specialized resources on the Internet. (See also the article How to Install the Sink: Features.)

Tip! All products from the seller must have a certificate of quality, ideally, if they meet the standards of GOST, this ensures their good performance.

Externally, the design should look neat: the coating should be uniform, from the inside the surface should not have flows and seams. Any flaws indicate low quality.
The weight of sturdy cranes is very large, it confirms the thickness of the walls and the quality of the raw materials used.

Brass - an excellent material for the manufacture of valves

Conclusion

We hope this review will help you find the best design option for a given situation and serve as a kind of instruction. The video in this article will help to better understand some of the issues addressed.