Hot water tap - what you need to know about this product

14-07-2018

Water supply

The mixer, from which water is supplied at the required temperature, is taken by many as a matter of course, therefore, when problems arise, the inconvenience is felt quite acutely. Meanwhile, there are a number of equipment requirements, and the temperature of the hot water in the faucet is spelled out in special regulations. But if you know the main features of the design, then the selection and maintenance of cranes will not cause difficulties even for those who are not familiar with this area.

Contactless mixers - a new word in technology, the temperature of hot water from the tap is set in advance, which significantly increases the comfort of use

The main types of cranes used in homes and apartments

There are several main types of valves, the main ones are in the design of the crane. Consider some types of products:

Valve taps	The easiest and most common option, the main advantage of which is the simplicity of the system, low price and ease of repair work - you can even do it yourself. Water mixing is made very simple: the hot water valve is turned off, and with the help of a cold stream its temperature can be adjusted to the required level
Single lever designs	A more modern option, in which the adjustment of water is made very easily: the movement of the lever up and down regulates the flow rate, and turning to the side increases the flow of hot or cold water. Adjusting the node in such devices is quite complicated, so its repair often consists in replacing the entire node
Ceramic Gate Systems	They are also single lever, but unlike the usual variants, their system consists of ceramic discs and a plug. There are two holes in the disks, and by moving them relative to each other, it is possible to change the intensity of the flow of hot and cold water. This option is more durable as it does not include wear rubber elements.
Ball valves for hot water	This option is used at pipelines inlets and in some places of the system where it is necessary to provide for the possibility of overlapping certain sections of communication networks for their maintenance and repair. The internal mechanism consists of a round-shaped body and a spool in which there is a large through-hole, combining it with the direction of water flow, the tap can be opened, and, turning 90 degrees, the flow can be blocked

It looks like the device of the ball valve system in the section, as you can see, everything is very simple

Tip! Cranes differ in terms of application and conditions of use, but in any case, the main indicator of their reliability and durability is the availability of documents certifying the quality and compliance with established requirements. This is very important, since there are many low-quality products on the market that quickly fail.

Features of operation and repair of products

To find the best option, you need to know what parameters it must meet. Therefore, you should consider some features of domestic networks of hot water.

Temperature readings

The temperature of the hot tap water is the same for all networks, and if deviations are detected as a result of the test, contact the supplying organization

Regarding the issue of temperature, the following can be noted:

The main regulatory act regulating this issue is SanPiN 2.1.4.2496-09 “Hygienic requirements for ensuring the security of hot water supply systems”. According to it, the temperature of the supplied water should vary from 60 to 75 degrees, these are the values that are the main indicators that all utility organizations are oriented on.
At night (from 0:00 to 5:00 hours), the allowed deviation from the norm should not exceed 5 degrees, and in the daytime (from 5:00 to 24:00 hours) the deviation should be no more than 3 degrees at all. In practice, these parameters are not always met, so periodic monitoring will not be superfluous.
This temperature was not chosen by chance: firstly, such values prevent skin burns, and secondly, all bacteria are destroyed.

Note! If, as a result of the measurement, it turned out that the water temperature is much lower than the established norm, then the utility supplying organization should recalculate and reduce the tariff rate. If the indicator is less than 40 degrees, then the calculation should be carried out at the cold water rate, but the measurement should also be carried out according to certain rules (the check is done at least two minutes after the tap is opened).

Violations of the terms of delivery - the basis for recalculating tariffs

And if low temperature indicators are a reason for reducing the cost of services, then too hot water from the tap is dangerous for causing burns to a person and increased wear of cranes. Therefore it is worth purchasing products with a safety margin (best of all, if the crane can withstand at least 100 degrees). (See also the article The device of the mixer for the sink: features.)

The temperature of the water in the hot water tap causes it to wear out faster than the cold main, so it’s better to choose the version with ceramic elements, they are less susceptible to negative impacts.

Among other things, it is necessary to note the fact that models with durable coating are required for use in the bath, it is better not to use products with chrome plating, but to opt for electroplated coating or oxidation - they are much more resistant to high temperature and humidity.

If hot water flows from both taps, you should turn to public utilities, most often problems in the introducing communications, and you will not be able to solve them yourself.

In the photo: the faucet for hot water in the bath should be resistant to high temperatures both inside and outside

If it is not possible to quickly fix the problem, the hot water tap nozzle will help solve the problem for a while.

Compact systems allow fast heating of small volumes of water.

How to eliminate the most common types of faults

If hot water flows badly from a tap or leaks are found at the location of the valves, you can do the repair yourself.

If you have a simple two-valve valve, the troubleshooting guide looks like this:

In valve versions, a hot water faucet whistles very often, this also indicates the wear of the rubber seal

The decorative cover is removed from the valve, and the locking screw is unscrewed., This should be done carefully so as not to damage the plug and not to disrupt the pipe threads.
Next, unscrew the packing gland stem., this should also be done very carefully.
After that, the rod itself is unscrewed., The valve body is inspected for damage. If necessary, the surface is cleaned and ground, or the element is completely replaced. Also replaced the rubber sealing ring.

Bad hot water from the tap? Maybe the rubber valve ring was simply deformed, it should be even without any dents and cracks.

You can replace the system with a rubber ring on a crane with a ceramic seal, the main thing is to choose the right size and replace the elements.

Fixing the slewing crane is even easier:

First, the cap under the handle is removed and the fixing screw is unscrewed.
Next, the lever swings slightly to the sides and removed from the design.
After that the decorative ring is removed, under which the clamping nut is located. The nut is unscrewed with a plumbing key, this should be done carefully.
Now you can remove the cartridge and carefully examine it for damage, the sealing elements are replaced in any case. If necessary, the cartridge is changed entirely.
Reassemble in the reverse order.

It should be remembered that before starting work, it is necessary to turn off the water and open the tap in order to free the system from residual liquid.

Conclusion

Cranes must meet a variety of requirements, quality is paramount. Repair can be done independently, and the video in this article will help to understand some of the features of the work even better.