Archive for September, 2010

The PEX tubes- varying sizes offered

Sep 23

Posted by Edmundo Plumber in PEX plumbing, PEX Tubing & Pipe, Plumbing supplies, Radiant Heating | Comments off

With a variety of uses that the tube comes with, the PEX tube is a piping application that can be used in your refrigeration, house heating, internal plumbing, and even in your over pour slab. The PEX is simply a name given to the polyethylene based chemically composed lining of pipe that is used in our homes for various applications. It contains various characteristics within it that will enable it to be used for all these purposes. Its resistance to heat and cold effect, its ability to be folded naturally and even its durability give it away as one of your best options when it comes to in-house plumbing. It will therefore have diverse applicability in your house, making it than most commonly used piping system in the house.

The piping comes in different sizes. One of the most common sizes is the half inch PEX tubing. This is conventionally called so due to the fact that their diameter is like so. It has a myriad of uses and is available in different colors. They also come with certain features according to the user’s desire. There are those that come with oxygen barriers, while there are others that do not come with these barriers. It is actually thinner than most of the piping that we are used, making it useful for most of the plumbing work that is done in your house. Its strength, stability and resistance make it stand out from the rest of the tubes in the market.

The one half PEX tubing with oxygen barriers is those mainly used in heating systems, especially those that involve house heating systems. It has an average circuit length of 350 feet, yet in most cases, this will depend on the length of the installation that is necessary on the facility that it is placed in. The length of these circuits is easily measured since they have a lower number of joints and also a lower number freeze breakage units.

Even with the above oxygen barrier PEX pipes, there are a number of versions that come with this. There are those whose circuit lengths can go up to as far as 500feet. These various variations have been introduced in order for different uses to be accomplished. Some of the variations for larger applications fall at around 1000 to 1200 feet, which are compatible with the task that is at hand.

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What do they do venting parts?

Sep 10

Posted by Edmundo Plumber in Radiant Heating, tankless water heater, tankless water heaters | Comments off

Currently, once a monopoly brick found worthy replacement. As a material for venting parts are increasingly using metal pipes, especially heat-resistant and acid resistant stainless steel. Stainless steel flues carry less weight than the brick, and do not require extra foundations, their is much easier to mount, it’s kind of easy to build a constructor, they are resistant to corrosion, durable, suitable for various modifications of boilers and furnaces.

Metal pipes are the best section for removal of flue gases. In the flue channels of circular section in contrast to the square and rectangular without local turbulence affecting the movement of the main flow of gases. On perfectly smooth wall Gas water heater venting parts are not deposited soot.

Steel pipes easily installed in existing home sales, where the construction phase was not a possibility of installation of heating units and, accordingly, there is no chimney. Metal pipes are widely represented in our market well-known foreign manufacturers. Started producing steel pipe for the chimney and Canada manufacturers. Some of them produce and modular flues (the full set of required elements for the installation of venting parts every difficulty). Equal quality to the western counterparts, the Canada products are often much cheaper. This year, the market appeared flues system of ceramic fireclay pipes in a shell of lightweight concrete German company Schiedel. With all the advantages of steel venting parts, they are distinguished by the high reliability and durability. These elements consist of an internal fire-clay pipes, insulating layer of basalt rock and the outer shell – lightweight foam concrete or stainless steel. Price fireclay flue channel elements is somewhat higher than steel. But it pays for long term operation. The modern market offers and more exotic materials for the chimney. For example, glass. Advantages of glass flues are as follows: they do not corrode, does not absorb moisture, have a low thermal inertia. But currently such venting parts are very expensive and require costly installation. It is possible that in the future, the glass gradually replace other materials for the production of venting parts.

I must say that we have for the construction of flues still use asbestos cement pipes. Unfortunately, this comes from poverty. It should be borne in mind that they are perfect for this purpose not intended. The fact that this material is carcinogenic, in that lightly tolerated and the most dangerous thing that the asbestos cement pipe fire risks! Do not put your life at risk for the sake of questionable economy.

Thus, modern chimney systems have significant advantages over traditional brick. And thanks to its characteristics and versatility in a leading position in the now emerging steel flues made of stainless steel.

Its advantages over steel 3 (“black” steel) are obvious. Low corrosion resistance of the material leads to complete destruction of the flue channel in a rather short time. And its primary cheapness leads subsequently to a permanent additional investments. And a decent portion of these costs have to re-assembling the flue. Moreover, the smoke channel, stainless steel, reliable and, therefore, significantly increases the fire safety of the entire heating system.

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Features of the second method – much wider.

Sep 10

Posted by Edmundo Plumber in Taco Pumps | Comments off

With the circulation pump coolant is evenly distributed throughout the radiant heating system, in which case the temperature of the upper and lower part of the radiator will be approximately the same. Also the fact that the system is under pressure to reduce the number and frequency of occurrence of air pockets.

When selecting a circulation pump to it must meet the following requirements:

  • Simplicity and reliability
  • The possibility of automation
  • Economy

It is important also in the quiet, long life, low operating costs, no need for complex maintenance. Today, these requirements are consistent with company’s products GRUNDFOS – the world leader in pump engineering. For example, pumps have a series Alpha2 record low power consumption – from 5 Watts. Thanks to its versatility, they are widely used in heating systems of various types.

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Easy PEX piping

Sep 9

Posted by Edmundo Plumber in PEX Tubing & Pipe, Plumbing supplies | Comments off

In addition, there are cases where the production of polypropylene tubing in order to reduce the cost of production in the feedstock is added to a secondary polypropylene (in several cities in Seattle it is now taking in the assembly materials). This leads to a dramatic reduction in the life of the tubing. Unfortunately, the domestic polypropylene tubing still remain at the level of low quality. The addition of recycled materials in the primary raw material is very dangerous symptom. Indeed, it is clearly leads to rapid depolymerization of tubes: they can begin to break even earlier than PEX  tubing, just as happened earlier in the destruction of poor quality braided wiring. All of this may actually lead to the discrediting of the idea of PEX piping. Many manufacturers of PEX tubing have a limited range of products, especially fittings – PEX fittings. As a result, installation companies are forced to buy some tubing manufacturers, shaped compounds – the other, and often several, and mounting hardware – the third. It is clear that rely on the ideal outcome in these conditions is not necessary. For polypropylene tubes, exactly like all PEX tubing, this blend is dangerous. While use of materials, in general, different modes of diffusion alloying, to achieve a fully homogeneous (homogeneous), and therefore long-lasting connection is problematic. Similar problems can occur in cases where manufacturers of piping and equipment have very limited range of products. In this situation the installation companies are forced to go to different, not justified by the combination and substitution, ie, actually to take risks during the design and installation.

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PEX tubing market

Sep 9

Posted by Edmundo Plumber in PEX plumbing, PEX Tubing & Pipe | Comments off

One of the main features of the modern domestic market for PEX tubing is that it has an extremely wide range of proposals, which appeared almost simultaneously, and only 5-10 years ago, mostly from the West (PEX tubing: PEX pipe, PEX tube and PEX piping). They differ significantly in innovation, quality and price. Along with the fact the latest in the market there are some who are known in the West for decades. After all, the history of PEX tubing is more than 65 years. However, for us they are all equally are new, as appeared in the “single package” with true innovations. In that one moment has arisen “ocean” of information orientation was not so easy either designers or builders, or the more unsophisticated buyers and consumers of building materials and services. And it carries a lot of surprises. Common how-ever systematic information base that contains the objective, rather than advertising data for all accounts in our market PEX tubingline and technologies have not yet been established either in St. Petersburg, nor in Seattle. Of course, this applies not only to PEX tubing, and any construction innovation. These circumstances greatly complicate the task of choosing the best of them. Moreover, our consumer was not ready psychologically.

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Internal engineering systems

Sep 8

Posted by Edmundo Plumber in PEX plumbing, Plumbing supplies, Radiant Heating | Comments off

Disadvantaged situation was just the internal engineering systems (PEX plumbing, sanitation, radiant heating). They are “hidden” from the eyes of buyers and not directly determine the marketability of housing. And therefore are not subject to too much careful attention to their developers and investors. On the contrary, the latter often try to generate profits, saving on costs and quality of materials, primarily for the domestic plumbing and heating. However, throughout the civilized world when it comes to housing, functionality, quality and reliability is data systems – these are the parameters that are dominant in determining such factors as quality of housing “and” quality of life. ” Moreover, with increasing business activity and employment, more and more people are beginning to appreciate my free time, peace and the possibility of a rest in the house, that is, the absence of any, even minimal problems with the engineer (literally: “time – the money”). The result is qualitative, rather than price gain in the modern world prevail. This is just PEX piping meet the world’s leading manufacturers. In the Seattle construction market is currently available PEX tubing of three generations: • I generation – the tubing of polyvinyl chloride (PEX tubing); • II generation – the tubing made of polyethylene (PE, polyethylene tubing); • III generation – tubing made of polypropylene (PP, PP tube). PEX tubing I Generation (PEX tubing) appeared in the middle of 30 of the last century. They belong to the category of products “do it yourself” and was originally intended only for the individual low-rise construction. For this reason, they have bounded diameter. Connecting tubing and fittings by using glue. At present, European countries, almost abandoned the use of data PEX tubing, even in cold water. The reasons are several. First, over time, active process of releasing toxins, including Chloroethylene, which is a carcinogen broad-spectrum, and secondly, PEX does not withstand the increasing demands for resilience to possible emergency situations and fire, because a combustible material, which the combustion emits toxic fumes – oxides (CO) and dioxide (CO2). Falls in their use in high-rise building, unfortunately, has a negative experience: they can not stand the guarantee period, even in one year. At present, PEX tubing are used in Europe in plumbing systems. In Seattle, PEX tubing is also recommended for use in the systems of internal and external drainage (note the author)

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Tubing made of polyethylene

Sep 7

Posted by Edmundo Plumber in PEX Tubing & Pipe, Radiant Heating | Comments off

In the middle of the 50 years there was a tubing made of polyethylene (PE tubing), which gave new impetus to the wider application of them in construction. One of the advantages of PEX tubing is that they are resistant to low temperatures down to -20 oC. This makes it possible to exploit the polyethylene tubing and hold their seal even in winter conditions. Polyethylene tubing are connected mechanically or polypropylene with brass fittings. Scope of application – mostly cold water. At the beginning of 70 years there was a tube of “cross-linked” polyethylene (crosslinked polyethylene), very firm and higher resistance to temperature influences. There are several versions of such tubing depending on the method of “matching”. Such tubing can already be used in systems for hot water and tubing with oxygen barrier – and in heating systems.

The next stage of development of the tubing lines are PEX tubing (MT, PEX tubing). PEX  tubing are a five-layer structure: the main cross-linked polyethylene tubing, glue layer deposited on its outer surface, a layer of aluminum foil thickness 0,1-0,15 mm, re-bonding layer and outer protective sheath made of PE (polyethylene). Unfortunately, the maximum diameter of such tubes to 40 mm, and therefore they have limited scope.

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Polypropylene tubing – tubing of the last generation

Sep 6

Posted by Edmundo Plumber in PEX Tubing & Pipe, Plumbing supplies | Comments off

Technology Connections polypropylene tubing – diffusion alloying. Manufacturers offer a wide range of tubing diameters from 16 to 125 mm in relation to systems of cold and hot water and heating systems, including the floor.

Positive features and advantages of PEX tubing are well known. On the shortcomings of these tubing they know far less, especially since many of them appear only on the domestic market, reflecting our situation. Consistently analyze these shortcomings.
At the production stage. The vast number of Western and some Turkish producers of polypropylene tubing, working on the system of Western standards, is a multistep and highly sophisticated quality control system. This system includes quality control of both the raw materials and production technology. In particular, the production process on a mandatory basis for automatic control of the geometry and thickness of tubing, as well as the geometry of the fittings. This ensures the compatibility of any compounds. However, such control is absent in most small-scale, artisanal Turkish companies and, unfortunately, domestic manufacturers, which does not give full confidence in the reliability of compounds such PEX tubing. The manufacturing process for the production of high quality polypropylene tubing must meet a number of international standards such as ISO 9002.

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PEX piping for dummies

Sep 5

Posted by Edmundo Plumber in PEX Tubing & Pipe, Plumbing supplies | Comments off

Currently, only a relatively small number of design organizations really owns the methodological apparatus design of modern PEX piping (the tubing of polypropylene, polyethylene, metalloplastka). As a result, most project tubingline systems is carried out in very general terms, and installation companies in the future have to make the executive scheme is based on their vision and experience. To this we must add that the vast majority of PEX tubing fitters mounting technology actually mastered independently. Particularities of different tubing and many subtleties installation, they often do not represent. We know, for example, that the tubing cross-linked polyethylene have coefficient of thermal linear expansion at a temperature 70-90 ° C in a 7-fold greater than, for example, metal tubes of the same material. For this reason, they must lay hidden (in Stroebe, for skirting, gypsum plasterboard, suspended ceilings, etc.). Polyethylene tubing, mounted at temperatures 0-20 ° C, under open their laying, when they are flowing coolant at a temperature above 70 ° C, constitute an intricate sine curve. A similar pattern will occur in cases where, for example in order to save, rather than a stable reinforced polypropylene tubes, allowing not only hidden, but openly laying in the hot plumbing systems use ordinary polypropylene tubing, which has a 5 times greater coefficient of thermal linear expansion . All this not only spoils the aesthetic perception perspective of PEX piping, but often closes the road to their broad practical application. However, Seattle already operates a number of serious companies capable of comprehensively and at the advanced level to solve all the problems and plumbing systems with facilities for any purpose and any complexity based on the best use of PEX tubing. Maybe this will pave the way for new advanced materials and technologies.

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