The PEX manufacturer is making products for domestic as well as commercial use. The PEX tubes are used in offices too which shows that the quality of the product is very good. The best advantage of the PEX tube is that it is resistant to chlorine and this makes the drinking water safe. The PEX was used for making plumbing materials in the year 1930 and thereafter.

Previously, the Everhot PEX made use of metals and other materials like copper, plastic, iron, etc to make the tubes for plumbing. However, everything changed since 1930 as the PEX started to gain all the popularity with all the advantages. The strength of the PEX tubes comes from the high-density polyethylene polymer that is used in the making of the tubes. This same factor gives the large amount of durability to the tubes.

With the durability, safety is also a guaranteed feature with the products of the OxyPEX. This is a material, which does not get contaminated without difficulty. This is the main reason why the PEX tubes are used to get the water plumbing done. Another advantage of the PEX tubes is that they provide he feature of utility. These tubes are made by the Uponor in a whole range of sizes which range from half and inch to four inches in diameter. However, it is the smaller ones that are used more often. The bigger ones are used for the make shift plumbing grids which require to be placed during parties and other outdoor events.

The tubes are manufactured by the Wirsbo PEX in countries, which has climate temperatures below zero degrees Celsius. The tubes ensure that the water does not freeze. Thus, it provides the utility of an insulator. Thus, the PEX tubes and other products provide many advantages to its users.

Using geothermal heat pump for a floor radiant heating system

Heat is generated from the floor initially by these systems which heats up the environment in the rooms. There are a lot of benefits of using these types of floor heating systems. First of all, these types of heating systems are very much environment friendly as compared to all other systems. Heat is scattered throughout the house and evenly distributed but it is not possible in any other heating systems. Efficiency of heating is very much high in these heating systems in comparison to any other systems available for the purpose of providing heating. Heat is provided by converting the cold air available in the room and if there is no cold air left over, the heating process stops by the system. Heat in the air rises on and on but the floor will always be constant at temperature and it will not rise excessively.

Heat is generated straight by the PEX tubing which is done under the floor and it is very necessary to clean any type of allergens or dust mites available as they might cause you sneezing, respiratory infections or any allergic reactions. So in order to avoid all these reactions, you are required to clean the surface almost daily. If you are going to get this system installed in your house, you are required to get the best professional team in order to get the best results. The current flooring which has been done in the home is required to be removed in order to get hydronic radiant heating systems fixed. There are some hydronic systems that are designed such that they can provide heating to every corner of the house and these types of systems require a boiler to be used. The boiler should be powerful enough so as to cater heat all over the house. As the technology is getting more and more advanced, boilers have also advanced a lot in the recent times. These days, boilers have become much cheaper as compared to the earlier ones due to the developments of tubing made up of polyethylene. These hydronic heating systems are very cost effective and their maintenance cost is also very low as compared to any other heating systems available in the markets. All these are the reasons due to which people are using these heating systems.

Outdoor Wooden Furnaces with insulated PEX tubing

A good choice is very much the pex a water pipe which you can use within the concept of heating, as well as cooling devices, electric powered systems and gas installs. For experts plumbing technician’s pex crimping tool appear in a broad and varied, with every little thing you’ll need on the job, connections, cutting and even more. To work with pex need three basic pex tools: key crimping tool, pex crimping tool applied to cut tube, de-crimping tool – utilized in order to take out copper crimp ring within the tube.

Most water system, are manufactured with pex tubing. Pex crimp tools really a developing movement within the sanitary market. Instead of copper water lines, that happen to be costly both to acquire and setting up, requiring complicated connections, Pex crimping tools definitely flexible, low-cost, as well as simple to put in. It is possible to bend pex crimping tool with the necessity to have an elbow connector. It is usually powerful, so do not need bother about the probable for mashing.

Yet another economical part, with regard to dollars, is the fact that puts a stop to pricey to fixes upfront, eradicating the potential risk of leak. Involving its advantages is the chance to resist the accumulation of chlorine, pex crimping tool that will not develop pinholes or rust. What’s more, it requires fewer fittings than traditional systems and pipelines. PEX works well with each water line: cold and warm. It really is available in red that is helpful to indicate the hot and cold blue. It’s not needed, is only for capability of an individual. Another of its remarkable flexibility would be the ability to expand and to contract.

While PEX is resistant to frost, there’s no various other tube that is assured never to separate due to freezing. Pex tools have received good recognition recently, which includes various home-builders, simply because has got wonderful quality and usefulness. Plumbing PEX will spend less the invoices into a substantial extent as well as, at the same time, currently an expertise of class in the industry of sanitary installation. Pex tools setup according to your needs, may improve water financial savings and general performance of water supply system. It is a great deal more productive and massager than typical metal pipes are constructed of iron, lead or copper mineral.

PEX plumbing system features several advantages: no rust is not troubled by chemicals and does not will need quite a few fittings or other contacts involving pipes. As well resist low temperatures without fails, which often can’t be stated in regards to the copper piping. That you can work, you would like some PEX tubing plumbing: PEX crimping tool, an average knife, copper manifolds, and valve opening up / shutting down, cutter, transition accessories and also plastic hangers.

Just after you’ve made certain that you’ve got these types PEX tubing plumbing, installation or remedy work may become child’s play, since everybody can work easy with PEX plumbing. Even if there is a wide array of plumbing and tubes, we’ve got to analyze properly what you decide on for the house. Alongside the simple fact that their quality has to be regarded also, toughness and cost overall performance will be as essential. These types of things are taken heed of by PEX tubing plumbing, which provides an effective selling price / top quality proportion, which in turn presents an advantage over other versions.

The cost of materials used is significantly less than those used by copper pipes, connecting plumbing is manufactured easier and faster; we have a tiny possible opportunity to break the tubing, you possibly can found PEX plumbing pipes in a store utilizing this type of profile, plus the record keeps growing.

Pex tube system simultaneously gives you Everhot PEX fittings produced just for corner permanent fixture, the location where the pipe that cannot really bend over in a sharp 90 degree angle. Although sharkbit doubles, the Everhot PEX it isn’t just improved but will also much less expensive versus the Everhot PEX.

Primary issues which a PEX pipe are generally related to the life span time period of the actual tube. The PEX pipe lasts for around 50 years, but just in some factors. The pipe really should have cold water running through it; it has to be set not even close the hot water tube so that water vapors won’t condense on it, plus it ought to be reinforced if it is a hot water pipe.

PEX piping tools are costly, and these are needed all the time the PEX plumbing pipe ought to be changed. Because of the fact that replacements may be necessary typically, the equipment ends up being obtained. Any PEX pipe is preferred by almost all people today, however the PEX pipe has a few down sides when you compare to the iron water line.

One of the major challenges in a PEX plumbing pipe from the above counted is the water vapors condense. Most of the people use the PEX piping system indoors for the kitchen or the bathing room. So, it happens to be practically inevitable for the cold water pipe to be close to the hot water pipe. Therefore, water could be dripping on the ground not from the PEX plumbing pipe, but with the vapors that form within the two hoses.

Then again, the iron line cannot reduce this matter, and the water on it is going to be leading to corrosion to show up to the conduit which enables it to damage things all over, such as kitchen house furniture.

When compared with the metal tubing, the PEX plumbing pipe needs to have less fixtures and is also much easier to put in. Another plus that the PEX piping system holds over the metal conduit is the selling prices paid for installation and buying the parts. The Copper pipe are more expensive compared to a PEX pipes, therefore takes a lot a bit longer to build a metal domestic plumbing system compared with a PEX piping system.

Some might be after appearance even though it comes to their piping solutions. So, PEX can be an improved option. The PEX pipes come in a diversity of tones, and on can be pick out red-colored designed for hot water, blue for cold water, and green for gas pipe joints and many others.

The fittings must also be included into the price, however one can be less than 2$, and thus the quantity will change the price, not the quality of the products so small such as fittings.

When used for the house heating system, the PEX pipe roller will cost for over 400$, due to the large quantity of PEX piping tubes needed.

One can find the best prices for PEX plumbing pipe online, because here one can get free shipping and other fees applied in stores are cut off.  Also, due to the great variety of PEX plumbing pipe systems and tools, the competitors need to come up with lower prices and promotions. The PEX piping tools are also included in promotions, and whenever buying a large quantity of PEX piping tools one can get a major discount or tools as a gift.

Overall, the PEX plumbing pipe can be found at low costs and high quality only in stores online, and only by those that search quite a while, rather than buying directly from the first store or offer they can get.

PEX plumbing pipe installs can also be found on real stores. Here retailers add a few extra fees, but during promotions, or stock clear offs these products can get really cheap. However, looking for such an option can take a lot of time, and most people need to change the installations fast, not next month or next summer.

To find best prices for PEX tubing pipes one must search for a while. This is highly recommended especially if one needs to buy large quantities of PEX. Another way to get a small price in large quantity purchase is to buy directly from the producer, which might give a discount up to 20% off the initial price.

Lots of the persons residing new properties can have PEX-AL-PEX conduits. A majority of these plumbing are much better looking compared with metal ones, and are also a lot inexpensive.

But, a few people today do not thereby this form of fitting for their normal water supply, and have a preference for to stick to the old steel steaming technique. Remarkably, equally different types of people are correct, and the reason will be following the next explanation.

While the metal pipes rust, cause impurities in the water and look very bad in a room, the PEX-AL-PEX tubing look amazingly well in any installation these are used for. The water is protected by an interior layer and germs are thus multiplying at much lower rates than the ones in iron pipes. But the PEX-AL-PEX has a series of disadvantages that makes one think twice before buying this material. The first of the disadvantages would be that PEX-AL-PEX has a life time of over 50 years. It may sound like much, but after this time the pipes will need immediate replacement. Another important think to be taken into consideration is the fact that such pipes will last 50 years only if the PEX-AL-PEX meets high quality standards. If not, the PEX-AL-PEX could damage in less than 20 years.

Due to the fact that the PEX-AL-PEX will need replacement, it is highly recommended that for a new home, the PEX-AL-PEX should be mounted on the outer walls, not on the inside. It would be quite bad to have to tear down walls to change a pipe.

But, despite all of this the PEX-AL-PEX is a great material to use indoors, and can provide all the resistance needed. For gas pipes, the polymer pipes can last even longer than 10-20 years, due to the fact that inside gas pipes the pressure is much lower than the pressure in water pipes.

PEX supply stores generally offer PEX-a, PEX-b and PEX-c for sale. The low cost of these products differ only by obtaining methods. PEX-a and PEX-b might be cheaper than PEX-c, because the C method of obtaining PEX tubing uses high technologically advanced equipments. However, the prices can be lowered by a lot, if one knows where to look for them.

PEX tubing  can cost less if one buys a large quantity of this material. Some people find this to be a great advantage, especially if they need it to replace the whole installation of the house.

But polymer pipes promotions have a disadvantage. Due to the fact that this material is so cheap, no too many producers are willing to change the prices for small quantities of polymer tubes. Apart from large quantities in purchase the only promotions one can find when purchasing polymer pipes is two in one offers. Meaning that, for the purchase of a polymer small quantity of materials, one can get to receive tools or another polymer tube, for free.

Another way to get a discount on polymer piping is to have a coupon from another product. Generally, related by niche companies initiate these types of promotions. As so, when a product from one of the companies is bought, the client receives a coupon that, presented in polymer stores gets him a discount on the polymer tubes he wants to buy.

The polymer materials are certainly cheaper than iron, and much stronger than PVC. Beside this, the polymer pipes look a lot better than the usual iron pipes, which might be quite an advantage for those that have to set their pipes on the outer walls. Iron pipes eventually damage causing rust to be spread out all over the walls and thus involving extra costs for wall reparations.

The bad part about all polymers is that, though it may be strong, it cannot be used for major pipes, such as the main house water pipe. In this case, high pressures can destroy the pipe in a matter of days.

Even so, for interior installations the polymer pipes and tubes are fully worth every penny paid for them.

Polyethylene (PE) pressure used for internal and external pressure pipelines. Pipes meet the requirements for installation and operation of the pipes in winter conditions. PE pipe outside diameter from 20 to 63 mm combined with PEX or brass fittings with rubber O-ring, as well as using electric couplings. Pipe diameters from 63 mm to 160 mm connected butt welding. Produced polyethylene pipes for high and low pressure: LDPE and HDPE. Non-pressure polyethylene pipes in diameter from 50 mm to 110 mm are designed for domestic sewage.

Pipe cross-linked polyethylene (PEX)

To make the resistance of polyethylene to high temperatures it is treated under high pressure. In this way, it turns out “cross-linked polyethylene. Crosslinked polyethylene used for heating and water supply. These tubes are mounted with compression fittings.

PEX pipes have been used in water systems, underfloor heating.

Pipes from metal-polymers PEX-AL-PEX

Metal pipes appeared on the market recently. Metal pipes PEX-AL-PEX pipe with an inner layer of aluminum foil. The latter is designed to reduce the coefficient of linear expansion of PEX-pipes.

If you only install PEX tubing is hidden, then the metal-PEX pipes are used in laying out open. Their quality and the advantage to keep the form in bending given the opportunity.

Metal pipes can withstand the constant pressure of 10 bar at 95 deg. Connect the pipe and screw-pressing.

Control over the quality of work carried out after each stage (welding, insulation, installation, etc.). If you do not, then after each operation pipeline installation result of previous work becomes unavailable for testing.

For example, the imposition of the first layer of weld no longer gives the possibility to establish whether the joint assembly was made, whether installed the required clearance etc. But the imposition of bitumen isolation makes it impossible to check the quality of cleaning the pipe surface and as a primer.

Q: What is the recommended loop length for PEX tubing?
A: PEX tubing is generally installed in loop lengths ranging from 200ft to 250ft. It is not recommended to install this tubing size in lengths longer than 300ft, as it may reduce the delta T of the system and may increase it’s response time.
Therefore, the construction of PEX plumbing pipeline quality control should be carried out continuously and in stages in the process. All materials used for welding and assembly work must have certificates confirming their compliance with the requirements of ASTM.

Q: 1/2″ or PEX tubing – which is better suited for in-floor radiant heating?
A: 1/2″ size is by far the most popular for radiant floors, mainly due to the loop length allowances, pressure drop characteristics and nearly equal pricing. 3/8″ size, on the other hand, requires less floor elevation and is often used with pre-manufactured floor panels. Bottom line – the answer depends on the type of project, flooring space and other factors.

Reviewing the qualifications of welders shall be effected by welding test joints in conditions that are identical with the upcoming work. During the welding Welding checked, the order of suture and cleaning the slag between the layers of multilayer welding seams.

Among different types of materials, PEX polymer plumbing is usually seperated based on some categories for obtaining the material: PEX-a, PEX-b, PEX-c, all found in precisely the same installations, alternatively varied by fabrication techniques.
PEX-a is commonly an operation in which co2 atoms are instantly linked into cross-link selections. This sort of connection creates an increased quality item, although the process needed typically takes considerably more efforts in comparison to many other processes for acquiring polyethylene.

Currently, Seattle is experiencing rapid growth in consumption of tubing made of polymer materials. The premise of this – the catastrophic deterioration of existing utilities, as well as capacity development in Seattle’s own production, supported by availability of raw resources. Already, Seattle has about 50 plants (of varying thickness and level of equipment), manufacturing PEX tubing. We can assume that the coming years will be for years to modernize equipment, increase production capacity and expanding the range of products.

One of the biggest events of world importance in the development of PEX technology is the invention of high-PEX Random Copolymer (Type 3) and its industrial development. This lightweight and durable material relating to the category of thermo PEX. It is chemically resistant to most solvents, both acidic and alkaline type. Of particular interest is the thermal versatility PEX: the pipe from it operated at temperatures from -10 ° C to +90 ° C. Short pipes can withstand higher temperatures up to 110 ° C. Due to the elasticity of the material, the water in PEX tubes can be frozen without destroying them. “Random copolymer” is obtained by modifying the structure of PEX, that is added to the molecular chain of the ethylene molecule. This “neighborhood” improves the mechanical properties of PEX (viscosity, elasticity, high strength). Today it is generally accepted that the statistical copolymers of propylene most valuable. RRRS not harm the environment. In his treatment and recycling does not generate environmentally harmful substances. In addition, PEX is suitable for disposal without the addition of environmentally harmful substances.

In late 2002, the world’s largest producer of raw materials for PEX pipe, the company «Borealis», had completed work on a new material – PEX grade RA -130 E. Material specifically designed for the manufacture of pipes and fittings used in water and heating systems. Currently, the brand is included in the classification of PEX materials under the symbol RR – R -100 (PEX Random Copolymer – PP – R) and run it should supplant well-known brand today PEX PP – P – 80. The new material has passed a comprehensive, including temperature, strength and hygiene tests in a number of independent organizations. Since the temperature-strength tests at temperatures ranging from 20 to 110 ° C were carried out in one of the most influential European centers «Bodycote Polymer» (Sweden). The tests were performed according to methods that meet international quality standard ISO 9080 (ISO / TR 9080), and in accordance with the requirements of the Regulations DVGW 544 Testing Center, the Association of German industries of gas and water supply, located in Karlsruhe.

• High strength makes possible the implementation of metal pipes piping water and heating with a high internal pressure.
• Thermal stability allows for the pipe for the installation of hot water and heating, including boiler rooms.
• Resistance to multiple, sudden changes in pressure and temperature.
• Absolute resistant to corrosion, high chemical resistance make it possible to use them for pumping corrosive liquids.

These pipes are not clogged, on their inner surface are not deposited any scale or corrosion products, brought coolant from other elements of the system. Consequently, the hydraulic characteristics of the pipes does not change throughout life.
* The low roughness of the inner surface – 10 times lower than that of copper (brass), pipelines, and more than 20 times lower than that of steel. This property allows the use of pipes of smaller diameter, which makes the system compact and neinertnymi, use pumps of lower power and completely abandon the rules set in the project section of the pipeline is three times larger than necessary, so that after 10 years as a result of coking pipe flow area was nominal. But this causes an increase in load on the pumping equipment, high operating costs, high capacity system.
* Extreme flexibility allows repeatedly to reduce the number of connections, respectively, to reduce the hydraulic resistance, improve system reliability and speed installation, reduce the cost of material and the whole system. Approachable metal-tube allows to make the tribe with a very small bend radius, and the sections where the bending remains constant.
* Persistently maintaining shape during bending.
* Lack of internal stresses and, consequently, increased service life.
* Low coefficient of linear expansion (as in copper) can do without additional compensators.
* One hundred percent oxygen and water resistance. Aluminum pipe layer does not transmit oxygen and thus prevents the occurrence of corrosion within the systems of heating (boilers, radiators, boilers, etc.).
* Electrical. Special design allows fitting to interrupt electrical contact and prevent premature failure of the system due to exposure to electric fields.
* Non-conductivity of noise and vibration – a property particularly important for residential premises. The outer and inner layers of polyethylene pipe reduce noise levels, which are usually very well transmitted and reinforced with metal pipes.
* Compact and lightweight packaging make it easy to transport metal pipes and reduce transportation and storage costs to a minimum. Bay of pipes with a diameter of 16 mm length of 200 meters weighs only 25 kg (200 m copper pipe weighs 80 kg).
* The service life under specified operating conditions is at least 50 years.
* It is absolutely environmentally friendly material. PEX pipe have no contraindications for use in installations of all types: from pipelines for drinking water pipelines to fuel.
* Due to the fact that the outer layer of the pipe is crosslinked polyethylene, there is no need to protect the pipe from the outside against corrosion, and paint it.

On the basis of metal pipes can implement any scheme of spreading room:

* Distribution;
* Pipe;
* Floor heating;
* Baseboard wiring;
* Traditional routing of pipelines (similar to steel structures).

The pipe is designed to provide hidden and open spreading room. Possible pipe laying in the wall canals, mines, sex, concreting, pipe in pipe “, as well as direct concreting. But the main feature of metal pipe that is – the ideal material for floor heating systems – the most promising form of heating. In this regard it is important to note that the pipes are supplied in coils of 200 m, which allows you to put them in the floor without a single interface.

PN 10 – for cold water (up to +20 ° C) and heated floors (up to +45 ° C), the nominal operating pressure of 1 MPa (10.197 kg / cm);

PN 16 – for hot and cold water (up to +60 ° C), the nominal operating pressure of 1,6 MPa (16.32 kgf/cm2);

PN 20 for hot water (temperature up to +95 ° C), nominal pressure of 2 MPa (20.394 kgf/cm2);

PN 25 (reinforced) for hot water and central heating (up to +95 ° C), nominal pressure of 2,5 MPa (25.49 kg / cm).

In addition, the fasteners are manufactured from PEX. Combined parts, having in the design nickel-plated brass extrusion box with an external or internal thread, make it easy to switch from PEX to the metal. They are equally suitable for pipes of any number of pressure.

Benefits

Reliability and durability of pipeline systems is directly dependent on the quality and properties of the source material. The invention of PEX mark “Random copolymer” RRRS was the culmination of unique research. It managed to combine a number of valuable properties, which makes this material ideal for creating high-pressure water systems and heating systems.

Many years of service

On the surface, having direct contact with water, does not form deposits and corrosion. The inner diameter of the pipes does not diminish with time.

Maintaining water purity

The material is absolutely non-toxic and chemically resistant (inert), and therefore does not affect the quality of transported water.

Resistance to changing conditions

PEX mark “Random copolymer” RRRS withstand changes in temperature and pressure in a wide daipazone.

Low thermal conductivity

In the working mode (the flow of water) on the surface of the pipeline does not form condensate.

Ability to dampen noise and vibration

PEX pipes and fittings have good sound absorption, and therefore limited to the transfer of noise arising during the flow of water through the pipes and fittings, which are many times reduced in comparison with metal, the sound transmission

Saving of time

Installation of PEX mark “Random copolymer” RRVS requires minimal skills, time and effort. Socket welding technology allows only a few seconds to ensure the longevity tight connection.

Savings

Unique price / performance ratio is achieved due to low cost raw materials and technological simplicity of installation. In addition, the durability of PEX pipe favorably with metal.

Unpretentiousness of Service

Reinforced PEX does not require painting, as they have an even color across the surface of the material (do not change it). Besides, there is no need to pre-training of pipes and fittings.

And once again saving

PEX pipes and fittings in the 9 (!) Times lighter than metal, therefore, significantly reduces transport and storage costs and complexity of installation, which correspondingly reduces the time and cost of installation.

Assembly

PEX pipelines suitable for all known types of seals: open brickwork, laying under plaster, in mines and channels, etc. Installation of pipelines from the “Random copolymer” (RRRS) should be performed at an ambient temperature not lower than -10 ° C. Connection of PEX parts made with the help of special equipment by heat welding into the socket.

1. Polyethylene pipes
2. PVC pipes, steel and iron

Connection pressure polyethylene pipes without welding is possible in two ranges of diameters: small (20-110mm) and medium (63-315mm). The range of large diameters is clearly uneconomical for connection without welding, but in terms of durability and reliability – even dangerous.

For pressure pipes of rigid materials (PVC, steel, iron) of dimension greater range of mechanical connections, covers the small and medium-sized (40-300mm), and part of the large-diameter (350-600mm).

In this case of welding of polyethylene is not, however, find it necessary to offer you reliable solutions that are in some cases exceptional advantages when connecting pipes without welding metal.

Proposed solutions

As the title suggests, only a general overview, we give a short description of possible solutions.
PEX pipe solutions for small and medium diameters

The average diameter pressure pipelines made of polyethylene (63-315mm) require a high degree of reliability of the connection. When it comes to top line of the size of the average range and technically possible to perform welding of polyethylene (in most cases have this opportunity), we strongly recommend to do it.

When this is not possible (this also happens), we propose to use the repair and fittings Viking Johnson for polyethylene pipe (series AquaFast).

* Solutions for pressure pipes made of PVC, iron and steel

Pressure piping from rigid materials are characterized by complex connections in the case of different diameters, different materials of pipes and especially in their misalignment during connection.

For the range of diameters 40-600mm is ideal for repairing and connecting fittings Viking Johnson series MaxiFit, which was originally developed for shipbuilding. With its high reliability and wide range of applications, it has a number of exceptional benefits to welded joints. These benefits and other technical details of products we consider later in the article on the fixture Viking Johnson.

The barrier diffusion of Oxygen tubing prevents iron corrosion in the heating part per DIN 4726 standards. These parts include boiler heating elements, circulators and radiators. In addition, the Oxygen PEX tubing is available in a variety of sizes.

The type of application and requirements of the heat load determines the size of the barrier PEX tubing. The manufacturer of the radiant system gives these specifications.

½” PEX tubing is the most available size. This is for radiant heat installations that include engineered floors, non reinforced concrete slab and reinforced concrete slabs, sandwich installations and the sub floor installations.

The ¾” PEX tubing is for the snowmelt system. This is because the snowmelt system requires a flow rate that is higher than that of radiant heating. The PEX tubing type is common in aluminum or iron radiators and also copper fined baseboards.

1” PEX tubing is for the radiant manifold or boiler return and supply lines. The size of the PEX tubing makes it possible for the tube to transport water for longer distances. In addition, the size also makes it one of the best options for the installation of wood furnaces outdoors.

The 3/8 inch PEX tubing is for residential radiant heating applications of slabs that are non-structural. Its flexibility makes it the ideal choice for small areas. It is used in the kitchen and bathroom radiant heat applications.

5/8 inch PEX tubing replaces the ½” PEX when higher rates of flow or heat loads are required. Additionally it is a replacement for the ¾” PEX where the applications need less flow and more flexibility. A good example of this is the snows melt systems.

The oxygen barrier tubing is abbreviated EVOH which is a layer of special polymer on the outer surface of the pipes that helps protect ferrous components from corrosion. The cast iron components in the radiant heat system that the pipes protect include circulator pumps, air scoops among others. The oxygen barrier tubes are readily available at pocket friendly prices. They are not suitable for water supply lines as the water has oxygen at all times.

1. crosslinked polyethylene (REX or PE – RT) or polypropylene;
2. adhesive layer for a tight connection of plastic and metal;
3. overlapped or butt welded aluminum pipe;
4. gum;
5. crosslinked polyethylene, crosslinked polyethylene (REX or PE-RT) or polypropylene;

One of the advantages of metal pipes – the ability to maintain shape after bending, which allows their use in the open strip (PEX pipes installed just hidden). Apart from these, the main characteristics of metal pipes are as follows:
ability to withstand constant pressure (the pressure of 10 bar at 95 ° C);
physiological suitability for drinking water and food;

- 100% I impenetrability gases;
- Slight thermal expansion;
- Lack of structural changes and deterioration;
- Two types of pipe joints – pressing and Mapesil;
- Diameters of 16, 18, 20, 25, 26, 32, 40 and 50, 63, 75, 110 mm (in the system UNIPIPE).

The multilayer structure of metal pipes is a new word in the technique of montage. If their use does not have to think whether to use metal or plastic, because they use a combination of these materials. Supplied in coils or portions of various sizes virtually eliminates the need to cut pipes, but an exception of welding, threading or soldering faster and cheaper installation.

The only drawback of copper wiring
is its cost – it is about 2.5 times the price
wiring of heating on polypropylene. However, if you build a house not
for sale, but for myself, it is worth once again to weigh whether to save
on the life of the system. In any case, none of our customers
have not regretted that fire, water and copper pipes come together in his service.

Followed by a copper pipe is polypropylene.
On the cut, she strongly resembles metal, but differs
way to connect and thickness. Polypropylene is connected with
machine that heats the PEX to a temperature
melting, and thus the fitting is welded to the pipe. If cut
Such a connection across, then the weld is not visible – Pipes
and fitting literally mixed together. Such a connection is
very reliable. Deficiencies of polypropylene in comparison with copper: a large
thickness of pipes and fittings, a large exposure to temperature deformation,
high degree of aging at high temperatures (over the years, pipelines
become more fragile, like a long lain in the ground PEX
package).

By Research Institute of Plumbers guaranteed
life of the heating system of polypropylene is 15 … 30
years.

Nevertheless, despite these shortcomings, polypropylene
on the reliability of installed systems firmly holds second place in
range of materials for heating systems.

Pipe XLPE
(PEX, or “pipe shape memory”) differs from polypropylene only
more flexibility and the way to connect. Such pipes extend special
apparatus, are inserted into the fitting, then the apparatus is removed,
and the pipe is securely compress fitting. The main disadvantages of such pipe
- Limited lifetime at high temperatures (like polypropylene)
and very high flexibility. Beautiful outdoor wiring to make such
tube is almost impossible – it has to hide in the walls.

The penultimate place among the materials
heating is repoussage. Metal PEX pipe
so popular even 5 years ago, is now gradually losing its appeal.
This is because, firstly, on the market a huge number of
Low-quality metal-pipe, and secondly, leaking,
which are formed at the junction of metal pipe after 2-3 years
exploitation.

We can see that housing reform is impossible without addressing the PEX tubing. Given the enormous demand for tubing and in the media, we believe that this problem can be solved only with the use of PEX tubing.

Modern house and rusty tubing in the household and drinking water tubingline – incompatible concepts. By now it is simply impossible to take any technical or economic, or any other reasonable basis. In fact, even if the start of the traditional criteria for the builders – the size of one-time initial cost of engineering systems, it turns out that the mass construction unit costs, such as a cold plumbing system, made of the most modern PEX piping shall not exceed one percent of cost of 1 square. m of living space. At the hot water system, these costs will be only slightly higher. There is no doubt that if all our “interest holders or other consumers of construction services had any real knowledge about these figures, they are two arms would have voted for the modern PEX piping, and therefore for peace and comfort in their future home. But, unfortunately, the current system of participatory construction participants were not fully aware and do not actually have the right to vote, but will have to continue to decide these issues, spending more money and effort to dismantle the rusty tubing and installation of modern tubingline systems. However, if based on common criteria – indicators of the potential damage that can be applied decoration, property for possible accidents substandard engineering systems, or even more so to take into account the costs of maintenance, repair and reconstruction of steel PEX tubing, the latter exceeds the costs to the modern PEX PEX tubing of 10 or more times. No less problems and constraints are steel tubing and using them for heating. Here, the builders have traditionally sold outdated technical solutions and electrical wiring tubing, in which virtually eliminated the installation of individual meters in the flats heat. Accordingly, our residents simply deprived of the opportunity actually to save energy in your home, not only today but in the future. However, in St. Petersburg is now almost 80% of housing is being built on such outdated projects and technologies, “successfully” overcome the barriers of various inspections and commissions.

The main danger
the use of metal pipes hidden in the following. This pipe
a layer cake: the inner layer – XLPE
further layer of glue, then a layer of aluminum, re-glue, and finally
The outer layer of polyethylene or other material. All listed
layers superimposed on top brass fittings. When using a pipe
for example, in the heating system, it is heated by the flowing coolant.
The coefficient of thermal linear expansion of polyethylene own, have glue
your have your aluminum, the outer coating pipes own, and in fitting
as his own. Multiple-temperature deformation of so many
mutually contacting materials causes a weakening of the pipe in the
its weak spot – where the mounted fitting.

Imagine
that in a year in your home decorated in a room on the radiator, bandaged
for metal-PEX, and began to dig fitting. Most likely, you take
key and tighten the nut on the fitting to eliminate leakage. After some
time – a month or a year, a drop reappears, and you re-tighten
fitting. After a while the nut is tightened to such an extent
that prozhmet through a layer of aluminum metal-tube, and
the slightest effort on the fitting will be enough to pipe broke off.

And to address such an accident, you already need
hollowing of the decorated wall or floor not less than 0,5 m pipe
for its extension, for which the need to install another fitting
which, incidentally, according to the norms of working with copper pipe Murowana
in concrete is not recommended.

Also described the main negative features
Metal systems are still two shortcomings. First,
it is always narrowed flow passage fittings (looking at any
strotelnom market inside any fittings for metal pipes,
You’ll notice that the throat of the fitting are much smaller than the diameter
pipes, for which it was intended). Secondly, the cost of quality
fittings for metal pipes are always very high, in large
as nullifying the low cost of the pipe.

Conclusion: Aluminum
pipe can be sufficiently high degree of reliability apply only
when produced from its pipeline operates at a
the same temperature, which in practice is rare. Based
on our experience and that of our colleagues, let us formulate these
above disadvantages of metal-we in the last 4 years have ceased to offer
these pipes to our customers. <br>
Of course, if you insist, we
certainly mount for you even heating, even heated floors, even
any other system of metal pipes. Moreover, we will
system mounted on its normal 1 year guarantee. However, we always
consider their duty to warn every one of our customers from the outlined
ills, often the case with others.

Completes our list of steel
pipe. Its main drawbacks – external and internal corrosion, high
internal resistance, and high complexity of installation and repair.
There is however one case where the steel pipe is still out
competition. This gravitational heating system. Rarely, but still
find homes in areas where long (2 … 4 days)
cut off electricity. One solution for heating in this situation
is to install with automatic small autonomous
generator, the other – to set the volatile boiler and gravitational
heating. This system, which does not require a pump. Such
system in the last century were mounted in almost all the village houses.
They are rejected not in vain – their efficiency by 30% below current systems
and, therefore, 30% higher fuel consumption, the pipe must be used
large diameters, and install them and radiators with slopes (which spoils
design). And there are many other shortcomings.

However, if the owner insists it is on such
gravitational heating system, the cost of pipes for it to be
highest position in the estimates. That is why such systems are mounted
remains exclusively from steel pipes.

If you are building
house for himself and the heating system it will be pressurized (with pump)
then certainly the most reliable system is obtained from copper pipes.
PEX has the meaning applied to infrequently visited country houses
and houses, standing up for sale. The difference in cost of materials between
copper and PEX distributing heating will be in a holiday home
about 800 €, in a country house of the middle class (two or three heated
level) about 1500 €, in the house of luxury 2500 € (cost of installation
Works on the type of material does not depend on).
Other materials, in our opinion,
not allow simultaneous combined into a reliable, elegant
visible parts assembly and small losses on the internal resistance.

Therefore, Plumbing systems must be periodically cleaned. For this tubingline provides so-called “audit” (sealing hatches) and “cleaning” (holes in the wall of the tube, closed tube).

They are put where the flow of water dramatically alter the character of motion, for example, to place the accession of several tubing, a sharp bend, indented (a small break on the risers), as well as on the issue.

For reference. When emptying a full sink basin holds more than 12 seconds, and full bath – more than 180 seconds, then tubinglines have already begun to become obstructed.

Education sediments may slow “catcher” (Air separator), installed at the outlet of a sink.

The more one-off (“volley”) water consumption, the better it is self-cleaning of tubing and vice versa.

Beautiful imported toilet flush, low-capacity, of course, saves water (for what was done), but it is not conducive to self-cleaning tubing in our plumbing systems.

Well, if we increase the slope of PEX tubing? Stream will flow, of course, a little faster, but the thickness of the liquid layer becomes smaller, and with a small amount of waste, large items will settle to the bottom.

The same happens when an unjustified increase in the diameter of the PEX tubing at a constant volume of effluent.

PEX Connection Systems

Residents of the upper floors of tall buildings, especially in older areas, are familiar with the problem of insufficient water pressure in the network. Incidentally, apart from the inconveniences associated with conventional needs – washing dishes, showers and the like, low and unstable pressure does not allow for complex appliances (modern washing machines, dishwashers quite demanding in this regard). Not able to replace the existing old and unreliable gas column in the new secure unit (most manufacturers stipulate the desired pressure in the water in the operation manuals). To solve this urgent problem, you can use pretty ingenious device that can enhance and stabilize the pressure in the pipes. This is a small, compact pump is installed directly into the pipeline. The pump design is very reliable and, at first glance, quite simple. The casing is mounted rotating element (rotor) with a fixed propeller on it. Inside the case must be constantly pumped water (this type of pump is called “wet rotor”) which lubricates the bearings of the pump, and simultaneously cools the motor. This design allows the pump operates almost silently, and reduces the risk of breakage.

It should be noted that if for some reason in the pipeline is no water, it could happen “dry run” of the pump, Damage to the appliance. For protection against such an option, the current models (eg, GRUNDFOS type UPA) be provided with special sensors that automatically turn off the pump in a dangerous moment. The same sensor can be used in automatic assembly mode, in which he switches on and off during the opening or closing the valve.

It should be noted that these pumps should be mounted only by professionals! Major companies take over not only the installation, but maintenance of the unit and help with registration of all documents.

Many home buyers familiar with the situation when you can not do without redevelopment. To have a comfortable existence, remove or demolish the wall, make additional partitions, move toilets. And although in recent years significantly tightened the requirements for documenting these alterations, their number is not decreasing. However, if the movement of the wall usually does not cause undue difficulty, the transfer of sewer riser in the apartment house it certainly doomed to failure. Getting the same kind of aesthetic pleasure from the thick tubes stretched across all the housing, capable of only very large originals. What to do if you want to move the toilet to the bedroom, guest bath to build and install a washing machine on the balcony? Only one way out – to use modern automatic plumbing plants. These devices, which resemble ordinary toilet tanks, made of high quality PEX, in fact, include the ultra-modern circulation pumps capable of effectively silent and odorless pump the plumbing to a distance of 100 meters! In this case, the presence of a special shredding mechanism, enables the installation of pipes of small diameter and can successfully conceal them with drainage into the reservoir. The latter model, for example, Sololift, have a nice design and very compact, making them completely invisible to any bathroom.