Since it is not easy to lift or transport these pipes in single pieces, so they are obtainable in foot long sizes of 20 inches. This makes them easily transportable and usable during installation work or so. In addition to this, the PEX piping is available in different sizes such as 1”, ½”, ¼”, ¾” and 3/8”. So individuals can use these units according to their personal needs. Mostly, larger diameter sized tubing is used in commercial spaces while residential spaces are installed with units of lower diameter.

Besides having high resistance to temperature, these units possess great resistance to chemical attacks also. They do not react with air leading to corrosion and rusting. They do not even form scaling or chlorination of water being supplied through it thereby making it super clean. There are also fewer numbers of joints in PEX piping mechanism which makes chances of damages and leakages truly lessened up. It is also good for checking out of any kind of leakage in installation work.

So, without any doubt PEX piping are best for water plumbing systems.

To start with, the PEX pipes are highly resistant to extreme temperatures. This is also the same to the copper pipes but it can easily break when exposed to extreme ones. This is because the expansion and contraction ability of the copper pipes is not acceptable and can easily break during freezing. The PEX pipes on the other hand, cannot break. This is due to their high flexibility which enables them to withstand different temperatures by stretching instead of expansion which weakens the copper pipes.

Among the benefits of the PEX pipes is their high resistance to corrosion. Copper is a metal and like all other metals, they corrode. However, its corrosion percentage is low and highly resistant. Copper pipes only corrode when exposed to high levels of water pH of either too acidic or basic. This leads to their corrosion which leads to metallic taste in the water and subsequently wearing off. PEX pipes on the other hand are not made of metal; it is made of cross-linked polythene pipes. It is therefore highly resistant to corrosion.

Cost effectiveness of the PEX pipes is another benefit that exceeds the copper pipes. Other than its low purchase price, the PEX pipes’ installation is cheaper as it requires fewer fittings and less energy to position. This can save a lot and have more money left for other uses. Copper pipes are expensive starting from their buying price to their installation as they are inflexible hence require more fittings to customize.

Another benefit of the PEX pipes is their ability to be used with other pipes. This makes them essential by giving them a variety of uses. They can easily be used with metal and PVC pipes either for extension of between them as loop to allow their expansion.

Finally, the PEX pipes are more reliable. This is because they need fewer fittings which the more they are the higher the chances of leaking. They can easily be bent round corners unlike the copper pipes which need more fittings to achieve this.

Nevertheless, there are many reasons, when the fusion has to be abandoned. In this paper we consider the main causes of non-welded joints, as well as offer their own solutions to the issue. Please note, we will focus on high-pressure pipelines external networks of polyethylene, PVC, iron and steel.

Plan article:

1. Reasons for non-welding
2. Types of the pipe
3. Proposed solutions

Reasons for non-welding Insulating PEX Pipe for Plumbing Applications

First determine what grounds the decision in favor of the mechanical connection of pipes. Typically, three factors are decisive:

* Price issue
* Difficult conditions
* Limited time

The price of the issue implies a high price for the services of welding, for example, in connection with a small amount of work. Suppose you need to implement one or more joints of polyethylene pipes of small diameter. Challenge teams of welders would cost more than the cost of devices of these compounds (sometimes several times), not to mention the cost of the equipment.

Difficult conditions often preclude the use of welding. Very limited space, constant intense influx of water when the tube is fully or partially submerged in water, even the remoteness of the place of work on urban infrastructure – these and many other cases, the performance of welded joints is a challenge or impossible.

The third example is found in the life of the operational service. In this example, you can combine all three factors in one – an accident on the pipeline. Time of the accident can not be predicted at this case in stock usually has a repair kit. But what about when it comes to plastic pipe, and its own team of welders and related equipment is not available?

To address these questions we turn to the third part of the article, and now dwell on the description of the types of pipes, which in principle applies mechanical means of connecting pressure pipes.

First, the easiest, but at the same time, the most uneconomical – often to pour as much water from the devices.

Second-grade to make arbitrary, based on the range of 2-10% (the shorter the issue – the more the slope). In this case, set to release “cleansing” and periodically clean out his mechanical means, which is quite troublesome.

Note that cleaning the tubing “chemistry”, for example, means “The Mole” and so forth, you can destroy the microorganisms that break down waste in Plumbing treatment plants cottage, and, thus, delaying the clearance of waste for 2-3 months.

A more reliable but more expensive way – is to set the base of the riser team capacity and its periodic emptying of fecal pump, for example, echo sounder airlift, etc.

Note that the forced pumping effluent as an alternative to abstraction by gravity, is used increasingly.

For example, in the regeneration of large houses, where, at the request of the owner, sanitary devices placed in the building is chaotic, or western renovation of the old city apartments.

Major causes of penetration of gases from the Plumbing in the room three: looseness in the joints of the tubingline network, a crack in the rubber sleeve on the flush and the breakdown of hydraulic seal any instrument.

Stoyan at the upper equipment finish cleaning, and the carts to make it a tubing of larger diameter.

The possibility of using such a construction be sure to check the calculation. That extra chores completely pay off the cheapening of the system and the possibility of new planning decisions.

If the home will be a few risers, for example, if the toilets are located on opposite sides of a house or set a lot of devices of different types, the risers in the attic can be brought together in a tube and make a hood.

In any case, even one risers in the house should be ventilated.

Extracts have no closer than 4 m from the windows and balconies and are bringing into 0,3-0,4 m above the roof.

Higher tubing in the winter ice more quickly slaughtered due to condensation of moisture from the plumbing gases. And that means the inevitable breakdown of the closures. Deflector on the hood is better not to – it contributes to its intermittence.

From the foregoing it follows that the problem of choosing a plumbing downright like a legendary hero: wherever you go – always something to lose. And to solve it sensibly, by forces only specialist.

Of course, you can change yourself a pair or two tubing or install a new device in the house. However, serious modernization of the system, and even more so, its development and installation of a new home, despite its apparent simplicity, after all, with qualified professionals.
Recommendations landlord

If the devices of the upper floor constantly disrupts the closures are likely clogged or peremerzla hood. If disruptions occur periodically at the instruments on different floors, so improper diameter riser.

If on the ground floor there is release of water from the shutter device in a bowl, then most likely clogged issue.

When leaving the family for a long time do not forget to pour a tablespoon of vegetable (engine) oil in the siphon devices. This will prevent excessive water evaporation and entry into the house gases.

If the winter heating accounts off, it is necessary to pull water from the cisterns in the toilets and remove it from the closures.

According to specialists, more than 60% in the basements of residential buildings have been at least once flooded by Plumbing because of the clogging Plumbing tubing.

Our article on how to reduce the risk of problems with Plumbing in the house and as easy to deal with them.

Work plumbing

In addition to flooding, Plumbing facilities, in-house Plumbing surprises in the form of leaks, specific smells, frightening noise. Yes, and aesthetics cobwebs visible tubing are not too attractive.

To foresee any problems can be expected from Plumbing, it is useful to understand the essence of its design and operation principle.

The network of tubinglines and plumbing fixtures (the “instruments”), collecting and abductors used water and waste (except rain water) inside the building, called Intra, and more often – the internal plumbing system.

From each device (sink, bath, toilet, etc.) drains through the outlet tubing are placed in a horizontal FLOOR withdrawal from it – in the riser, ie, a vertical tubing.

In the basement of the house riser smoothly into a horizontal tube-production, waste water outlet of the building under the ground (below the freezing depth of soil).

Further, they are sent through the tubing or in the observation well, and from it – in the network outside plumbing or septic tank in the local treatment system.

The upper part of the riser is displayed above the roof of the house and called a hood. Through it discharged into the atmosphere gases from the outdoor sanitation.

Water from swimming pools, water heaters, heating systems and water purification is also diverted into the plumbing.

plumbingage Network originally created as nonpressure, gravity. Therefore, in all its horizontal sections are provided, small (1-4%), but strictly controlled by the gradients of tubinglines, along the drain water.

tubing connection in an extensive network of exercise with the help of special fasteners (tees, bends, crossings, etc.). They are called fittings or fasoninoy. Such elements, to connect one device, takes 3 to 6 pieces.

To plumbing gases do not fall into the room, each device added to the taps through a special device that works as a water seal. Plumbers usually call them “siphons”.

Lock – is, in fact, loop or U-shaped tube, half filled with water. Water and serves as a barrier to the removal of gases from the room (in the toilet bowls and traps are provided embedded in the design of the gates).

The network configuration, and hence its value, above all, depend on the number and placement of devices in the home. The cost of plumbingage system in the modern cottages ranging from 1 to 5 thousand dollars, on risers.c

Polypropylene tubing and fittings are designed for domestic hot and cold water, warm floors and wiring of central heating systems with operating temperature up to +95 C.

Use polypropylene tubes can be virtually any of the existing date fields where tubing are used: to take stock of drinking water to supply coolant to the radiator, drainage, irrigation, etc.

Also, what is particularly valuable, PEX belongs to a class of polyolefins, and like all members of this class, is an environmentally friendly product, transferring their money on products made from it and ensuring the security of the process.

To this we can only add that the reliability of welded joints – the highest as compared with other methods and approaches in strength to the tubing itself.

Invented by KrahGmbH technology has been adopted worldwide and became the final decision, especially for Plumbing systems. Firat Company is proud that she had the honor to represent the production technology spiral tubing (PEX), thanks to technological partnership with the corporation KrahGmbH.

PEX tubing found application in many fields, such as: Waste water treatment plants, Plumbing systems, marine collector, industrial ventilation systems, industrial tanks and storage facilities for chemicals, irrigation systems, storage of methane gas, etc.

PEX tubing are manufactured with a diameter up to 3.600 mm.
Depending on the specification, FKS tubing are made of high density polyethylene (HDPE) or polypropylene (PP).

Today the building is widely used PEX tubing. On the positive properties of PEX is its reduced flammability and increased chemical resistance compared to other polymers. It is also less sensitive to UV radiation.

Compared with polyethylene, PEX tubing have higher performance. PEX has the lowest coefficient of thermal linear expansion compared with other polymers are used: for comparison – 2 times smaller than that of polypropylene.

Among the general advantages of PEX tubing should be attributed durability and environmental friendliness.

PEX tubing are absolutely smooth, so a minimal resistance to fluid motion, not corrode and have a high plasticity.

Making a decision of what material to choose tubing for the construction of various engineering systems, especially when it comes to external networks, pay attention to the substantial difference in assembly technology systems. Thus, for polyethylene tubing should be expensive, energy-intensive and heavy welding equipment, work which requires highly skilled personnel (important human factor, which can not be avoided!), As well as certain working conditions. In the case of PEX tubing – installation requires a very simple lever hardware. Installation of PEX tubing takes much less time than the welding of polyethylene tubing.

The main areas of PEX tubing are a drain system and the external and internal drainage.

For PEX tubing is characterized by one common factor – an excellent price / quality ratio.

Pledge convenience and comfort of your home – are high-quality communications systems, good tubing, water and plumbing. Water piping are several kinds. These are traditional water tubing made of steel, copper, and it mednoplastikovye tubing, but the best option would tubing plumbing of a new generation. This is a tubing made of plastic, with the most convenient water tubing are made of polypropylene. Moreover, such tubes suitable for cold water and hot, and for heating systems.

Water tubing of high quality material has several advantages. For example, water tubing, made of polypropylene, is not subject to corrosion does not emit harmful pollutants, is not susceptible to vibration and not overgrown within sediments. There is a more economical option, it’s water tubing made of PEX. Such a tubing tap can be used for cold and external plumbing. In addition, water tubing made of modern materials easy to install, easy to install, does not spoil the appearance and easily retracted into the wall, contributing not only convenience, but also the beauty of the room.

tubing made of good material – the inseparable concepts. A plumbing and tubing from the old rusty materials -

on the contrary. “Everhot” offers you water tubing made of modern materials. If you need a plumbing and

tubing for it to last for a long time, you’ve come to the right place. Firm Everhot “offers competitive

rates, flexible terms of cooperation with the shipment of regional warehouses in Canada, the possibility of

delivery, as well as an additional assortment of different parts and tools. We produce good quality plumbing

tubing, which will operate for decades. Generational change, relocate the tenants of houses and water tubing

in the company “Everhot” will regularly provide housing with water and serve the good of man last

longer. We offer a wide range of products, which include and water tubing. These are the newest water tubing

made of plastic. For example, water tubing from the PAN under GOST 18599-2001 for produced water inlets 32mm

diameter (500 meters into the bay), 63mm (300 and 500 meters in the bay) and a segment of 12 meters in

diameter from 110 to 1200 mm.

newspapers … Unfortunately, the water tubing in Saratov, a city set in a very long time and need

replacement. Water tubing in Saratov last for no more than ten years – are the results of the study revealed

a Canada company “Plumbing Supply” back in 2000. The first water tubing were installed in Saratov as early as

1844. Vancouver- Canada’s only so big settlement, where Plumbing from the Plumbing tubing are accumulated

directly in the city. The city is home to a huge number of people in need of comfort and a supportive

environment. That is why the company “BOW Group” offers high-quality plumbing tubing in Saratov to provide

comfort and pleasant atmosphere in the city.

Such associations we have established through many years of neglect of cultural production and neglect of human needs. In fact, the profession is a plumber in the construction did not last in importance.

Few know, but there are special institutions of higher learning for training of the profession. Range of problems which have addressed these universities, of course is much broader than the problems that arise during repair and decoration. Work at the site plumber usually starts first and finishes last.

It begins with the dismantling of old equipment. If this is an old house, then chances are that some burst pipe or tap picks, so you should be extremely careful when dismantling production equipment. In new houses this process easier, as a rule, have nothing to dismantle, as no equipment no. Then replacing radiators. Next time, sanitary come to the site after construction and plastering of walls in the bathrooms. Made installation of water pipes and sewage systems, all of these pipes are in the walls. At this point, the facility should be complete assembly drawings for the installed equipment, the presence of fasteners and assembly of frames on inline sanitary ware, heated towel rail.

The next stage – is the installation of plumbing work done before the finish lacquered parquet. The most common material for water supply – a metal plastic. It is suitable for installation, requires no welding, no plaque on the walls of pipes. Manufacturing company provides warranty on the pipes 80 years of exploitation, but, unfortunately, no statistics on this stuff, because it is quite new. Also used copper pipes, which are characteristics of metal-like, but it has statistics on exploitation. The cost of copper tubing and accessories thereof, about 1.5 times higher than in the metal-plastic. Sewer pipes are laid PVC.

Therefore, in order not to be trapped, it is necessary in addition to SniP use SP or TU, which contain much more information.

Thus, in 1996 the NGO Stroypolimer “developed and manufactured AC 40-101″ Designing and building tubinglines from the polymer “Random Copolymer”, which clearly defined parameters of operation and last but not least, the dependence of durability on the working temperature and pressure, which clearly presented in the form tablitsy.Chto concerns Metal tubing, it is truly a “pig in a poke.” Despite the fact that the recently issued a joint venture 41-102-98 “Design and installation of piping systems, heating with a metal-tubing” of any data on the dependence of pressure on temperature and longevity in this joint venture, or TU manufacturers can not be obtained. The only thing that is said in the joint venture: “Metal-tube used in the design and installation of heating, the calculated temperature not exceeding +90 ° C at a pressure in the tubing not more than 1,0 MPa. Some suppliers of metal-tubing trying to appeal to the nomograms ratio durability and a reference voltage. Maybe they do not suspect that the reference voltage is determined by the formula Kessel, a tangential stress of the tubing wall caused by internal pressure. Fatigue strength, represented in the form of a reference voltage, regardless of size tubing and shows only the behavior of the material. That is why these nomograms are not used to calculate the tubing, and for bench testing materials making up the tubing. Nevertheless it is interesting to observe how the information of some firms relative curves of metal-like tubes tend to heights beyond the clouds, like water or coolant flowing inside these tubes are not sewn on polyethylene, and on the aluminum tube.

Should be clear that the aluminum layer in PEX tubing does not bear any responsibility to provide life or improve the operating parameters. The liquid inside the tubing is flowing through the channel cross-linked polyethylene, and not aluminum. The main task of the layer of aluminum foil – to prevent the penetration of oxygen, and secondary – to partially compensate for thermal expansion. Therefore, when calculating the heating of the metal-tube must be guided by data on the durability of cross-linked polyethylene tubing.
In conclusion, it should be noted that to ensure durability of heating at 30 years of operating temperature and pressure should not exceed +80 ° C and 0.9 MPa, according to the SNIP – 0,6 MPa.

Clearly, for the introduction of this technology requires an understanding of specific problems associated with it plastic under high pressure and elevated temperatures. Thus, it is known that the use of conventional polyethylene as a material for pipes is only possible for cold water, but not for heating because of low long-term strength of polyethylene.

An alternative conventional polyethylene can serve as such material as a cross-linked polyethylene, which has strength properties that allow its use in the manufacture of pipes for heating.

Basic versions of production technology and some physical properties of crosslinked polyethylene are described below.

Technology Crosslinked (PEX) polyethylene
There are several types of polyethylene – the product obtained by polymerization of ethylene,
- Low density (LD PEX);
- High density (HD PEX);
- Ultra high molecular density (UHMWPE) crosslinked (PEX).

In normal (raw or sewn), polyethylene (PE) are long molecules are not coupled with each other in a polymer matrix. At the same time, the mechanical properties such as hardness, tensile strength, etc. strongly depend on the relative position, “entanglement” of molecules. It is therefore not surprising that the possibility of forced coupling of molecules with each other is of utmost interest. Chemical coupling of molecules, known as “merging”, so changes the properties of raw polyethylene, which is becoming possible to use the material for the manufacture of PEX pipes in district heating. (Note that it is possible and the physical cross-linking due to the presence of small particles, inclusions, here it is not considered.)

However, interest in cross-linking led to fair amount of confusion regarding the methods of production and the benefits of a technology.

Special studies are carried out with the water flowing through pipes UPVC proved immutability flavor. The chemical composition of water, too, has not changed, which confirmed the resistance of the material PVC-U and the lack of harmful emissions. Being chemically neutral materials, PVC and PVC-U used for making pipes used in the systems of food supply.

During the drilling of artesian wells casings are used PVC fittings. Fittings connection in the column is carried out by specially selected thread. In the research center developed the construction casing with solid and compact mechanical properties.

It is well known that the use of PEX pipes of large diameter opens new opportunities in the construction of pipelines. Traditionally, large-diameter PVC fittings are PEX tubes with a diameter 500-1200 mm. The main areas of application of such pipes are heavy and sewers, penstock, drain. The share of the market, which occupy polyethylene pipes, is quite significant and growing rapidly. Increase the proportion of polyethylene pipe will occur primarily at the expense of building new and restoring old or obsolete systems, water mains and sewage systems, especially for specific conditions of large cities, extensive roads and highways. Concrete Pipe still retain its leadership position for underground applications. However, plastic pipes begin to make them serious competition, based on advantages such as better performance, more rapid and easy installation compared to pipes made of other materials. Good prospects of using high-pressure polyethylene pipes for water supply and sanitation due to obsolescence of existing systems and a more frequent occurrence of problems such as leaks, breaks, ex-filtration, ie, diffuse penetration of external water supply systems, which is corrosive and low stability of existing systems to the pressure jump.

What You Need
In order to repair leaks in PVC fittings you need PVC glue and primer, sufficient caps or plugs in order to seal openings within the pipe. You will also need a shop vacuum.

Seal the Openings
First, you will need to seal off all the openings by using the plugs or caps. Make sure to keep one cap or plug aside. Keep the opening that lies nearest to the leakage open. This opening gets navigated by the vacuum subsequently. Attach the vacuum into the entire plumbing system to pull the vacuum over the whole system.

Checking for Leak
Whether these are PVC elbows or PVC bushings, leaks can happen at any time. Once you run the vacuum across the system, you should be able to detect leaks quickly because there will be a bit of suction at this point. Take the primer and apply it over the leakage. Once the vacuum sucks enough primer to the leak and fills it, turn the vacuum off.

Glue
Use the same process with the PVC glue and let it set. The leak is now filled!

The material of choice for domestic handmade now – it polypropylene-Rand (Type 3) and PVC. How do they differ? PVC pipes more “hard”, ie less elastic than polypropylene, so their installation in the open more aesthetic (not to be “curves” pipe), the more they are less afraid of sunlight. Bonding in hard to reach places easier than welding (PVC connected to the adhesive, and polypropylene welded special apparatus). However, unlike polypropylene, PVC pipes expensive. Fittings of metal usually PVC, which requires caution when installing. For the same reason, the radiator PVC pipes must be connected through metal reducers. A variety of fittings, combination of threaded adapters “on metal”, valves and fittings for polypropylene pipes produced much more than for PVC. Price welding machine for polypropylene – from 100 to 300 $.

The second lesson will focus on ways to connect plastic pipes. The author would be grateful for any comments and additions on the article.

Rated pressure. Represented letters PN. Is expressed in bars (kgf/cm2). PN – is a constant nominal internal pressure of the water with a temperature of 20 ° C, which pipe can withstand without failure for 50 years. The most common pipe PN 10, PN 16, PN 20 and PN 25. It should be borne in mind that the higher the PN, the thicker wall of the chimney, and PN 25 in general, have reinforced wall (a layer of foil inside the plastic). Accordingly, the pipe PN 10 and PN 16 are used to cold water, and PN 20 and PN 25 for hot water and heating. Some manufacturers, such as domestic company FD-layer, produces tubes with a longitudinal stripe – blue for cold water (PN 10) and red for hot (PN 20). There are tables, from which we can calculate the service life of pipes, based on data on water pressure in the pipe and its temperature. What temperature is above 20 ° C or higher the pressure, the less life.

Identification of the material. Different manufacturers use different designations, but the letters PP will always say that the pipe is made of polypropylene. If you see the letters PPH, PP-1 or PP-type 1, the pipes are made of type 1 PP – homopolymer. PPB, PP-2, PP-type 2 – block copolymers. But the best of polypropylene is now recognized Random copolymer: PPR, PP-2, PP-random, PPRC. If you find one of these symbols on the tube – this is what you need!

Polyvinyl chloride (PVC) is of two types: Chlorinated polyvinyl chloride (CPVC or PVC-C) and polyvinyl chloride (PVC or PEX). PVC fittings are designed for cold water, and their CPVC – for hot and plumbing supply and radiant heating. Tubingmade of PEX and PVC among themselves do not stick together, you must use a special adapter.

Outside diameter of the pipe or PEX plumbing tubing. Most used the metric system, in which the outer diameter of the pipe is indicated in millimeters (16, 20, 25, 32, 40, 50, 63 mm, etc.). Why is it so important outer diameter, and not internal? Because all fittings (connectors, and installation of additional elements) are welded to the outer surface of the pipe. The inner diameter is important in the calculation of complex piping systems, it would be better left to specialists, and home handyman enough to remember that to maintain water pressure in the wiring inside diameter of pipe should decrease from the center to the periphery.
In PVC pipe outer diameter can be designated as in millimeters and inches. In this case, re inches in millimeters as follows:
1 / 2 “- 12mm, 3 / 4″ – 20mm, 1 “- 25mm, 1 1 / 4″ – 32mm;
1 1 / 2 “- 40mm 2″ – 50mm 3 – 75mm, 4 “- 100mm

Serious question. Before deciding on the choice, you must clearly realize that you’re going to do, why and how. The market of plastic pipe is now large enough so that you can choose the best option – price, quality, operating conditions and your abilities.

What good is a plumbing tubing

1. unique chemical resistance
2. corrosion and deposits on the walls
3. strength, combined with elasticity
4. low thermal conductivity (reduces heat loss during transportation of hot water or other liquids)
5. resistance to changing conditions (changes in temperature and pressure)
6. polymers used are not toxic
7. high sound absorption (water is not “buzz” and “growls”)
8. require minimal skills, effort and time for installation
9. longevity (in nominal terms – as will be discussed below – the life of 50 years).

Disadvantages of PEX plumbing tubing

1. strength and elasticity decreased by heating
2. polymers – combustible materials
3. UV rays cause accelerated aging of the material
4. Oxygen barrier check
5. large (10 times greater than that of iron), the coefficient of thermal expansion

PEX plumbing tubing tips to install

How to make a plumbing works?

Did you try someday to repair or carry out plumbing of the traditional metal tubing? The problem, frankly, not for the faint of heart. Right bend, to calculate the length, cut thread – a problem for professionals. But there is a pipe, even subordinate to the layman. This plastic pipe.

I will say at once: those who like tinkering, who is a pleasure to create useful things with your hands, work with PEX tubing for plumbing will bring pleasure.