Multilayer pipes (MP)

Multilayer pipes (MP) based on an alu-midlayer are making inroads. This layer works as
a barrier layer providing 100% diffusion tightness, it also reduces the length expansion
of the pipe when exposed to heat and provides larger distances between fixings due to
the higher stability. As a consequence, 30% less fixing material less time is used during
installation. MP pipes also tend to be 40% lighter then metal pipes and are easy to shape
and form.

Silane Pex globally by country in 2000

New bimodular materials (PE 100) manufactured by a cascade process, which equips
them with highly cristalline zones of short molecule chains, allowing wall thicknesses
well below the more standard PE’s. They are the reference materials for gas distribution
pipes in Europe today. The term PE 100 indicates the strength this PE (long term
strength of at least 10 Mpa at 20°C over 50 years).

PE 100 set new standards in terms of creep rupture strength, stress crack resistance
and resistance to rapid crack propagation. Sagging and dimensional stability are
however issues for PE100 based pipes at dimensions that exceed 65mm (Silane xlinking
does resolve the sagging issue). Their higher stiffness is limiting their use in smallerdiameter
waterpipes for floor-heating.

Global HDPE Pipe Market - KT

HDPE pipes display good functional properties, toughness, resistance to corrosion,
chemicals and micro-organisms. They can be tailored to different requirements and
installed at low costs. Today mainly unimodal HDPE grades (PE 63 and 80) are being
used allowing wall thicknesses of up to 70mm. Most important area of application
for HDPE pipes is drinking water, followed by sewage, gas supply lines and district
heating. HDPE has also never been as cost efficient as today.
The industry is facing a number of issues which explain the drive towards plastics;
♦ Leakage rates which require overdesigned treatment plants, and water shortages;
♦ Backflow: due to poor fittings connections, a vacuum is pulled on the line which
draws in dirt/contaminants;
♦ Costs: higher consumer bills and repair expense) with the existing technology.
Since HDPE pipes are joined by heat fusion this creates a leak free system. The joint
created is as strong or stronger than the pipe itself. In addition, no bolts, gaskets are
required.
It is estimated that 25% of the water that is cleaned and transported through pipes is
lost at local water plants, due to poor fittings. Iron pipes also are susceptible to fungi
and bacteria, causing decay and negative impact on hydraulic effiency over time.
PE requires no special coatings nor cathodic protection, is more resistant to acids, bases
and salts and is unaffected by bacteria/fungi; thereby providing better long term
hydraulic / hydrostatic stability over time. PE is smoother than steel which provides
excellent flow characteristics thereby offering equivalent flow profiles / velocity with
smaller pipe inner diameter.

Plastic pressure pipes: Market Size and Structure

Categories of pipe used are  gravity pipe for building and civil engineering,  pressure pipe for utilities and plumbing and for industrial use. The gravity sector is by far the largest.
In industrialised countries 89% of all sewage pipes are still made from concrete and stoneware, only 11% are plastic. Despite this, more than 50% of all plastic pipes are sewer and non pressure pipes.  Of this PVC has a market share of 80%. Despite the moves away from PVC, pipes made from this material grow at average GDP rates.
By 2025 an additional 3bill. people will live on our planet, demographics have the 2nd biggest impact on the growth rates for waterpipes. The biggest impact is coming from the replacement of concrete, copper and steel pipes however.
For pressure pipes only the PVC standard DIN EN 1452 is published. PrEN drafts cover PVC-sewer, PE-drinking water and sewer. EN for gas pipes is in the formla vote.  Key standards in Europe are DIN 16982 and 16983 apply for hot water pipes, up to diameters of 160 mm. ISO 13479 is the international standard for stress crack resistance and ISO 13477 covers rapid crack propagation. 

Global plastic pipe = 8MM tons of resin. 

PPR pipe and fitting selection guide

PPR pipe market price is now uneven, high and low price difference of almost double that of the naked eye can separate the good and bad, but some of the price difference is relatively large, but not very different feel naked eye, the Consumer In the selection of pipe materials, he often confused. To remind consumers buy water should be integrated as a major purchase based on cost-effective. 

Quality of products ranging from the merits

PPR water pipe in the market, affect the price level than an important factor in the uneven quality of products ranging from the merits. If the selection of raw materials, some very low selling price unknown brand or brand PPR pipe, the raw material is mixed with a number of recycling more waste plastic, the cost is very low. But this made PPR pipes with a certain toxicity, hot melt connection, smell and black smoke appears, long-term use it to transport drinking water, it will seriously damage people's health. But life is also no guarantee as short as a few months or as long as three to five years will burst pipe leakage. But the real import of high-quality pure raw materials PPR pipe, no poison, pipe made of combustion produces only carbon dioxide and water. Fortunately, such a pipe can often be seen naked eye the appearance of poor quality.

Some manufacturers and even some well-known brand manufacturers, in order to reduce costs, use of obsolete generation and second generation of PPH PPB PP PPR PP raw materials blended to produce three generations of the so-called "PPR pipe." PPH and PPB is polypropylene, but with the PPR in the molecular structure is very different, so in terms of performance and heat resistance, aging resistance is very poor, the key application and drainage. Such adulterated materials produced PPR pipe installation is no problem, use over time will produce a large area in the pipe surface, chapped, aging will soon be scrapped, and used in heating, the temperature of a better offer is likely to burst tube. But this really PPR pipes and pipe almost no difference in appearance, and because the melt point of PPB PPH and lower, some installers use up more time to melt smooth feel, but also mistaken advantage is good raw material. This is only the use of advanced analytical instruments to distinguish between the ingredients, this can only remind consumers when choosing the brand of choice really strong and reputable manufacturers of.

Also the stability of raw material manufacturers is important because different manufacturers of raw materials in the performance PPR have some differences, some domestic manufacturers, capital and reputation reasons, manufacturers often change ingredients, and adjust the production process they can not keep up, so the quality of difficult to ensure. Therefore, consumers must keep their eyes open when purchasing, do not promote superstition, the surface of some manufacturers!

In addition, production equipment, some selling cheap PPR manufacturers, equipment and a very simple and output of the pipe wall will Baohou often uneven, easily burst pipe. Some high-end enterprise production equipment is imported from abroad, the quality excellent. PPR pipe as the first domestic manufacturer Shanghai Baidie management industry is the introduction of advanced production equipment German Krauss-Maffei, the entire computer automatic control, ensure the consistency of pipe thickness, the stability of mature production technology, and because Shanghai Building Materials Group is backed by a large state-owned enterprises, financial strength, good reputation, with several major manufacturers of raw materials and foreign brands have established a good relationship, stable and secure supply of raw materials, produced by PPR pipe high temperature, anti- bending, compression capacity greater than the average PPR pipe.

Another important factor is also to remind consumers - counterfeiting Fan Jia, now some well-known brands as inappropriate measures, counterfeiting ineffective, resulting in market fake cross-flow, resulting in many consumers in the case of lack of experience, with high price to buy a poor fake, by the loss of more!

Safety, durability mixed

PPR pipe uneven level of prices between different brands of water also depends on the safety, durability, good and bad. Water as an important decoration in the hidden material, day after day for the home shoulder the heavy responsibility of conveying water safety, but the PPR water pipe market, security is variable. In general the more high-end brands of qualified PPR pipes, sanitary, non-toxic harmless, non-fouling, corrosion, and some unqualified PPR pipe, although cheap, are often toxic, will be distributed with the stimulus of gas, easy to pollution control in the delivery of water.

As a highly durable concealed pipe materials, usually hidden within the wall, is not easily removable, but the market price of PPR pipes of different, but not the same durability. One of the key water quality is good or bad pipe fittings, pipe fittings quality depends on the quality of copper inserts: one is the copper piece body should ensure a reasonable size, on the other hand should be high quality copper material, using rigorous The processing technology of production. Good PPR copper insert inside (outside) wire joints were smooth, tight joints, can effectively prevent Paomaodilou phenomenon. And Zhejiang Province in a number of small manufacturers to adopt the production of copper zinc alloy insert camouflage is not nothing new!

Good and bad service

PPR pipe high and low market prices uneven, but also intrinsically good or bad after-sales service associate. Installation and maintenance of water mains is a professional technical work, without guidance or training, ordinary people could not do, so water industry is very necessary service to consumers. But now the market price of the low number of PPR pipe production enterprises, the development of small and not able to provide comprehensive after-sales service. On the contrary some of the higher price of PPR pipe production enterprises, the enterprises strong, qualified to provide consumers with more timely and thoughtful service. One more great company, but also has a professional team and personalized after-sales service after-sale management system. Commissioner not only accurate answer for the consumer products, technical knowledge, will be selected to provide professional home installation and pressure test and the construction of technical training and on-site construction guidance and other services. In addition, they also create files for each customer, gift card service for the future and provide timely service to track return visits.

Brand value high and low

PPR pipe market price imbalances, PPR pipes with the added value of the different brands. In the market, the brand is not only the product code is the product quality, corporate image and social credibility of the representatives, so it is comprehensive strength and market cultivation of working together, will accumulate a certain brand value, and this additional The value will be reflected in product prices.

Layer-depth analysis of the above, must have many consumers on Why PPR pipe market price level of inequality, with a more clear answer. It encourages consumers to purchase PPR pipe, do not seek to save money, buy life is not long, affect the health of the poor quality of water. Or should a more rational manner from the product quality, safety durability, after-sales service, brand value and other aspects into consideration, the cost to make a comprehensive water points, it will get the most agreeable of good product.

PP-R pipes News

Polypropylene (PP) is a Polyolefin resin polymerized by using a Ziegler-Natta catalyst process. To produce granulate, PP is compounded after polymerization. During the compounding process, phenolic and phosphatic antioxidants and, mostly also, color pigments are added. For some markets noncolored raw material is offered as well, e.g. as inliner for aluminum-stabilized PP pipe or if processors do color the virgin material themselves.

General characteristics of Polypropylene

Polypropylene for pressure pipes offers the following characteristics:
Leight weight / Good creep rupture properties / Good aging resistance / Excellent chemical resistance / Good stress cracking resistance / Excellent welding properties / Excellent abrasion resistance / Good organoleptic properties / High dimensional stability / Excellent noise insulation properties

Some of the mentioned characteristics, for example creep rupture strength, aging resistance and organoleptic properties are influenced by the type and amount of additives used.

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Random Polypropylene (PP-R)

Statistical random PP copolymer (PP-R) contains monomer residues arranged according to a known statistical rule. Further reduced crystallinity provides for significantly higher flexibility and impact strength.

Good creep rupture strength and aging resistance at raised temperatures in conjuction with good impact strength have made PP-R one of the most widely used pipe materials for indoor potable water transport.

PP-R was one of the first plastic materials to replace metal for indoor pipe applications. Developed by Chemische Werke Hüls, now Sabic, PP-R at that time became increasingly popular in Western Europe, particularly in Germany, Austria, Spain and Italy. For example, PP-R was the most widely used plastic pipe material in Italy at the peak of its success.

Even compared to other pipe, for example PE-X pipe or aluminum composite pipe which may have superior properties for certain areas of application, PP-R pipe are still the product of choice for construction planers/architects and processors in many markets.

PP-R pipe systems still have one of the best cost-value ratios of all pipe materials and pipe systems used for hot water installations.

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The most important suppliers of PP-R compounds are:

Manufacturer	Brand	Country
Sabic – Europe	Vestolen	Germany
Borealis	RA 130 E, Beta-PPR	Sweden, Austria
LyondellBasell	Hostalen	Italy, Spain
Repsol	Isplen	Spain
Hyosung	Topilene	Korea

Fig. 3:   Manufacturer of PP-R compounds

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Reasons for the PP-R unit growth

• PP-R pipe systems have a good price-performance ratio. Pipes and fittings are made of the same, relatively inexpensive material.

• Large-diameter pipes and large fittings can be manufactured economically which makes PP-R pipes a preferred choice for all kinds of large projects.

• Another success factor is the joining technique. With unbeatable inexpensive fittings and simple tools, homogeneous connections can be made very easily and safe by means of polyfusion welding. Comprehensive fitting product lines, also including fittings with metal inserts for screw connections, facilitate all pipeline configurations including the changeover to metal pipe systems.

• Compared to the more flexible and easily bendable pipe, for example made of PE-X or composite pipes, the higher stiffness of PP-R pipes is a disadvantage yet hasn’t been an obstacle in the new PP-R markets.

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Trends

Because of the current worldwide financial crisis all existing unit growth estimates are obsolete. First of all, short-term changes have to be evaluated before revised estimates can be made. Nonetheless, general trends can be described for PP-R unit growth. These trends allow predictions for the general market development for the years ahead regardless of the actual numbers.

The following trends for PP-R could be observed over the past years:

• PP-R maintains its market position in the main markets, e.g. CIS and Middle East.
• In Eastern Europe, the amount of PP-R material used drops for the benefit of composite pipes in particular.
• Major demand for PP-R continues to shift to Southeast Asia, India and South America.
• The use of PP-R in Western Europe – Italy or Spain mainly – decreases further.
• The established PP-R pipe manufacturers in Europe are confronted with new, internationally focused competitors, for example from PR China or Turkey.
• To remain competitive, Western European pipe manufacturers set up production plants in the PP-R markets, e.g. in Egypt and in Dubai.
• Growing acceptance and unit growth of PP-R in the newer markets increasingly prompt local manufacturers to act.
• Multinational corporations expand into the PP-R business, for example through the acquisition of established PP-R manufacturers in the Czech Republic, Turkey or Poland.
• German or EU quality products are still in demand in many PP-R markets, ususally even if significantly cheaper local products are available.

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More Information on PP-R for Hot and Cold Water Installations

However, during recent years changes have occurred with regard to primary end use markets and regional focus. Were PP-R pipes to a large extent used for panel heating systems in the past, more recently these pipes are preliminarily used for potable water installations as well as heating, compressed air, gas or sprinkler pipe. Pipe grids and capillary tubes for ceiling or panel heating or cooling purposes which are also frequently manufactured of PP-R play a special role. A detailed review of the general changes and developments of the PP-R markets can be found in the KWD Market Report “PP-R Pipes for Hot and Cold Water Installations worldwide 2009″ (Author isAchim Seydel)

What is the relationship for PP-R pipe and PP-C pipe?

The previous period, the domestic market appear PP-C pipe, pipe fittings, the installation method and PP-R line. Many people confused PP-R and PP-C What is the difference, resulting in a lot of misunderstanding and confusion. International standards, hot and cold water points polypropylene PP-H, PP-B, PP-R three, no PP-C. Market PP-C pipe is actually PP-B pipe, the raw material is polypropylene block copolymer type Pipe Compound. PP-B pipe is a kind of hot and cold water pipes, the price is cheaper, its heat resistance, pressure resistance and a great gap between PP-R. For example: use grade 2, the design pressure 0.6MPadn25mm pipe, PP-R pipe wall thickness of 3.5mm, PP-B (PP-C) pipe wall thickness to 5.1mm; design pressure 0.8MPadn25mm, PP-R pipe wall thickness of 4.2 mm, while the PP-B (PP-C) can not be used. Because the required wall thickness was too thick. Size of the market structure in line with the PP-R pipe PP-C, its use is much lower, not be confused with PP-R pipes, but can not be used in determining the conditions to PP-C PP-R pipe pipe replacement. 2 use that design temperature 70 ℃, heating water using.

To use ppr pipe for under floor heating pipe, must choice the chrome plated or nickel plated brass fitting

Those buried in the floor tiles and cement following the wrong track complex piping and valves, in the end how much can withstand the temperature and how much pressure test? Geothermal, as buried "hidden work" would lead to doubts about a lot of people, although people are trying through various channels to understand, learn knowledge about geothermal, it is often not too successful. Select manifolds
Real life is about 6 years
However, this data is only theoretical and do not take into account regional differences in water quality in the specific situation. "A geothermal practitioners told reporters inside the convention, the current industry standard is manifold life of between 6 to 8 years. Geothermal heating system in the life of each valve within the valve body also decided to use the material in its Although at this stage in accordance with national standards should be used for 10 years, but were copper, steel, plastic and other materials made of body, life certainly different. "Under normal circumstances, as an open secret within the industry, including minutes, including some of the geothermal water valve, the actual life around in six years. "
Water Separator Selection
Manifold role of material used to choose life
By function can be divided into manual-based and intelligent manifold (1) influent flow distribution as necessary to ensure the flow of the regional branch of the loop to meet the heating load requirements. Meanwhile, the branch return water main pipe water flow together to achieve cycle run. (2) connected to the kinetic energy of various pieces of control (manual control valve, built-in valve, electric valves, flow meters, etc.), easy to implement building multi-region (room) the branch loop regulation and control of heating demand.
Press material can be divided into copper manifold, PPR water separator, stainless steel water separator, and aluminum manifolds.
According to the selected floor heating pipe (PE-Xa, PE-RT, PPR) and sub-catchment devices connected to the chemical corrosion of the copper is different to distinguish between use. Elected to use the PE-X series tube, the above three sub-catchment devices can be used. Elected to use PPR pipe PE-RT or when to do to warm, you must use nickel or chrome plated copper sub-catchment devices.
First, sub-catchment should be noted that the thickness of the wall for main bars and compressive strength;
Second, should pay attention to the content of copper in copper whether the relevant national standards;
Third, care should be connected with the main bar inside the spool valve material (copper, iron or plastic);
Fourth, we should pay attention to its anti-corrosion and anti-oxidation performance.
Internal and external surfaces shall be clean, no cracks, blisters, cold shut, slag, defects such as uneven. Surface plating of the connector color should be uniform, firm coating, not plating defects are off. The total catchment into sub-device, outlet pipe diameter is generally not less than 25mm ,5-10 years 

It's good for health to using high quality ppr pipe

Recent news, now used in most household water pipes are plastic PPR pipes, PPR plastic pipe does not have any toxicity, but with the increased use of time, it is not self-cleaning function and bacteria, PPR plastic material become a gathering place for secondary pollution of water and bacteria, the serious threat to human health, and even bacteria than galvanized pipe also excessive, long-term use is tantamount to suicide. Is it?
For water management in Nanjing Sun Komaji told reporters, Nanjing pipe used for domestic water pipes vast majority of PE pipe, there are UPVC pipes and PPR pipe. From the material point of view, these types of materials are non-toxic. Degree of view from the inside surface is smooth, PE pipe, PPR pipe galvanized pipe geometric much better, less likely to form scum and also to a certain extent, can inhibit the aggregation and breeding of bacteria. Therefore, PPR pipe worse than the galvanized pipe is nonsense. Probability of aggregation of bacteria, for any kind of material for plastic pipe are similar.
Some netizens said that the family of the conditions, the proposed installation of plastic coated copper pipe (the price is slightly higher), or lined with copper pipe PPR (affordable), because copper has a very good sterilization function and self-cleaning function. Sun Ju governance and water supply experts believe that there is no need, this does not rule out the possibility that some people in order to sell your pipe and sensational.
Experts believe that tap water as long distance transportation, may be the end of pipeline residual chlorine concentration less susceptible to secondary pollution, but as long to boil drinking water, it is safe to drink

PPR PIPE Water Quality Report from Copper Association

What is the PPR pipe? 
PP-R pipe is known of polypropylene pipes, polypropylene random copolymer with a pipe by extrusion, injection molding a tube. Europe's early development and application of 90 new plastic pipe products. PP-R in the '80s, using gas polymerization processes to make about 5% PE in the molecular chain of PP random uniform polymer (random copolymer) and a new generation of pipe materials. It has good impact resistance and long-term creep properties.


PPR Pipe PP-formally named pipe is used in most home improvement projects a water supply pipeline. 
PPR pipe interface with hot-melt technology, are completely integrated into the pipe together, so once installed pressure tested and will not be further leakage, high reliability. This does not mean there is no defect PPR pipes water pipes, heat resistance, a less pressure more long-term working temperature should not exceed 70 ℃; each piece of limited length, and can not bend construction, long distance or if the pipeline the corner and more should be used in the construction of a large number of joints; pipe fittings cheap but relatively high prices. Speaking from the overall performance, PPR pipe is the high cost of pipe, water pipe so as decoration material of choice for transformation. 
PPR Pipes market sales in three colors, white green and gray, why have this distinction, distributors of raw materials used in PPR answer is filler particles, and the different result. Better for the material of which white green boutique PPR pipe, gray was slightly worse in early common pipe materials. 
General transformation in the water, existing water mains will be replaced, home improvement companies and businesses in the proposed installation of PPR pipe fitting all those who use hot water pipes, even the cold water flowing through the parts with hot water pipes. Their argument is that because of the technical parameters of hot water than cold water pipes, and the price is little difference, so that transportation and transformation of all hot water pipes. Another fact is that even if you want to buy a cold water pipe on the market is also very difficult to buy because the cold water pipe only to be tooling market, not the supply of home improvement market. 
PPR pipe diameters from 16mm diameter to 160mm, home improvement is mainly used in 20mm, 25mm two (commonly known as 6 were in charge, one-inch tube), 4 of which used more in charge of some. The standard PP-R pipe diameter for the diameter

Knowledge about PPR PLASTIC PIPE product: What is the PPR pipe?

What is the PPR pipe? 

PP-R pipe is known of polypropylene pipes, polypropylene random copolymer with a pipe by extrusion, injection molding a tube. Europe's early development and application of 90 new plastic pipe products. PP-R in the '80s, using gas polymerization processes to make about 5% PE in the molecular chain of PP random uniform polymer (random copolymer) and a new generation of pipe materials. It has good impact resistance and long-term creep properties.

PPR Pipe PP-formally named pipe is used in most home improvement projects a water supply pipeline. 

PPR pipe interface with hot-melt technology, are completely integrated into the pipe together, so once installed pressure tested and will not be further leakage, high reliability. This does not mean there is no defect PPR pipes water pipes, heat resistance, a less pressure more long-term working temperature should not exceed 70 ℃; each piece of limited length, and can not bend construction, long distance or if the pipeline the corner and more should be used in the construction of a large number of joints; pipe fittings cheap but relatively high prices. Speaking from the overall performance, PPR pipe is the high cost of pipe, water pipe so as decoration material of choice for transformation. 

PPR Pipes market sales in three colors, white green and gray, why have this distinction, distributors of raw materials used in PPR answer is filler particles, and the different result. Better for the material of which white green boutique PPR pipe, gray was slightly worse in early common pipe materials. 

General transformation in the water, existing water mains will be replaced, home improvement companies and businesses in the proposed installation of PPR pipe fitting all those who use hot water pipes, even the cold water flowing through the parts with hot water pipes. Their argument is that because of the technical parameters of hot water than cold water pipes, and the price is little difference, so that transportation and transformation of all hot water pipes. Another fact is that even if you want to buy a cold water pipe on the market is also very difficult to buy because the cold water pipe only to be tooling market, not the supply of home improvement market. 

PPR pipe diameters from 16mm diameter to 160mm, home improvement is mainly used in 20mm, 25mm two (commonly known as 6 were in charge, one-inch tube), 4 of which used more in charge of some. The standard PP-R pipe diameter for the diameter

PPR Pipe Identification

1. "Touching" 

Texture is fine, particle is uniform. Now PP-R pipe on the market There are a few lime green color, touch, coarse particles are likely to blending of the other impurities.

2. "Smell" 

Are unscented. PP-R pipe main material is polypropylene, a good pipe does not smell bad there funny smell, it is willing to be a blending of the polyethylene, polypropylene instead.

3. "Pinch" 

PP-R pipe has a considerable hardness, as can be easily deformed shape into the tube, definitely not the PP-R pipe.

4. "Crushed" 

A good PP-R pipe, "elasticity" Well, of course, not too easy to smash a good PP-R pipe. However, hardness does not equal good elasticity, about how things are not smashed to pieces PP-R pipes, consumer should be left uncertain. Because some unscrupulous manufacturers by adding excess calcium carbonate and other impurities to improve the hardness of tubes, such tubes for a long time prone to brittle fracture.

5. "Burning" 

Ignition a burn, it is also very useful and intuitive. In a mixture of raw materials and other impurities of recycled plastic PP-R pipe will be black smoke, with pungent odor; good material combustion not only not black smoke, odor, burning after the melt out of the liquid is still very clean. 

PP-R pipe true and false identification:

1. Product Name: PP-R product name should be "hot and cold water pipes with polypropylene or" PP-R cold and hot water pipe "where the labeled ultra-fine particles modified polypropylene tubes (PP-R) or PP -R cold-water pipes, PP-R hot water pipes, PP-E tubes, etc., are non-formal name of the pseudo-PP-R pipe.

2. Product Testing Unit is a non-professional units, test items content and PP-R pipe does not match the standard set out in the content, products, or products recommended departmental promotion department, for PP-R product standards do not understand or without PP-R standard departments Certificates are issued by pseudo-PP-R.

3. Pseudo-density of PP-R slightly larger than the PP-R.

4.PP-R pipe matte white or other colors of the matte, pseudo-PP-R pipe shiny bright or vibrant color.

5.PP-R pipe completely opaque, pseudo-PP-R pipe slightly translucent or semi-translucent.

6.PP-R pipe soft touch, pseudo-PP-R pipe feel smooth.

7.PP-R pipe landing sound more boring, PPR pipe landed a more crisp sound.

PPR Pipe Features

PPR Pipe

PPR pipe (PP-R pipe) is formally called propylene random copolymer pipe. Due to its chemical features and fusion welding technique, PPR pipes are provided with perfect sealing performance and become the most popular pipeline in plumbing and water supply plants.

Characterized by excellent cleanness, cost effectiveness, applicability and advantage in safety, PPR pipe (PP-R pipe) is considered as the optimal pipe material for cold and hot water systems.

PP-R Pipe Features
In addition to the common features of ordinary pipes, like light weight, corrosion resistance, and non-scaling, Mingshi (MSP)PPR pipe also has the following advantages.

1. Non-toxicity and health
2. Heat preservation and energy conservation.
3. Great heat resistance
4. Long service life
5. Convenient installation and reliable connection
6. The PPR pipe material can be recycled, so this is a total environmental friendly product.

Applications
1. PPR pipes are ideal for cold and hot water systems in buildings, including central heating system.
2. Ideal for using in heating systems in buildings, including under floor, wall panel and radiation heating systems.
3. Drinking water supply purifying system.
4. Integrated central air-conditioning system.
5. Mingshi (MSP)PPR pipe can also be used as industrial pipeline systems for delivering or discharging chemical substan

PP-R Pipes Applications

PP-R pipes are also called the three polypropylene pipes, polypropylene random copolymer by extrusion using a pipe, a pipe fitting injection. Europe’s development and application of the early 90s the new plastic pipe products.PP-R is the late 80s, the gas-phase copolymerization process makes about 5% PE in the molecular chain of PP random homogeneous polymer (random copolymer) as a new generation of pipe materials. It has good impact resistance and long-term creep properties.
PP-R pipes mainly used
1, PP-R pipes are used to build hot and cold water systems, including central heating systems;
2, PP-R pipes are a part of building heating system, including floor, wall and radiant heating systems;
3, PP-R pipes can be directly purified water drinking water supply systems;
4, In the central (concentration) air conditioning systems,PP-R pipes always also play an important part;
5, PP-R pipes are used to transfer or discharge of chemical media, such as industrial piping system.
PPR pipes have good heat resistance. PP-R pipes vicat softening point of 131.5 ℃. Maximum working temperature of PPR is 95 ℃. while at water supply and drainage, PPR pipes meet the require of construction specifications of hot water system.PPR cold water pipes are generally used as water pipes, and PPR hot water pipes usually used to connect tubes, but it can also be used as the cold pipes.
PPR pipes are non-toxic and healthy.The elements of PPR pipes are only carbon and hydrogen,and there is no harmful toxic elements.Therefore, PPR pipes can be used to clean drinking water systems.
After broken and cleaned,PPR pipes can be recycled and used again,but the condition is that the recycled materials does not exceed the total amount of 10%, it will do not affect product quality.

Rak therm Installation of all pipes, valves and fittings

Rak therm Installation of all pipes, valves and fittings

Welding PP-R Pipes and Fittings

RAKtherm Uk|welding pipe fittings|welding machine|plumbing fittings|welding tools|welding equipment

How to Join PVC Pipe to an Elbow Joint

Joining plastic pipe to metal, is not a problem in itself. Any problems arise from the type of use -- such as pipes that are under pressure -- and the temperature influence on the different materials. If the pipe is used under pressure, it might be attached to the metal pipe by means of threaded ends, or rubber seals. PVC comes in various sizes from household water pipe to 48-inch sewer pipe.

1. Wire brush the threads on the metal elbow joint, until they are clean. If the metal elbow joint is a male thread, clean the threads with the wire brush. If the elbow threads are female, use the wire bottle brush to clean the threads internally.
2. Apply pipe thread sealer to the the metal elbow joint threads. The pipe thread sealer will help lubricate the threads and seal them, as the pipes are threaded together.
3. Thread the PVC pipe into the steel elbow joint. Use a pipe wrench to thread the PVC pipe into the elbow joint. If the metal elbow joint has a male thread -- place a metal hose clamp over the outside of the PVC female pipe end -- to prevent the PVC pipe from stretching or splitting. Use a screwdriver to tighten the clamp, after the PVC pipe is tightened.
4. Connect the PVC pipe to the desired plumbing, after the PVC pipe is connected to the elbow joint, as needed to complete the plumbing job.

Plastic Pipe Problems

Plastics have several advantages when used in pipework --- they are lighter, more flexible, and less expensive than metal or concrete pipes. However, there are disadvantages to the material, especially in older plastics.

Temperature Problems

• Plastic pipes have poor resistance to temperatures, and will eventually break down and spring leaks if subjected to heat and cold for extended periods.

  Corrosion and Degradation

  • If repeatedly exposed to certain chemicals, such as those found in gasoline and oil, plastic pipes will corrode. Plastic is also subject to photo-degradation, meaning that it will gradually be damaged if subjected to light for extended periods.

    Older Plastics

    • The problems of chemicals, temperatures and light are even more pronounced in older plastics, such as polybutylene. This material was touted as the "pipe of the future" in the 1970s, but started to show widespread degradation in the 80s. Though much of this older plastic has been removed from plumbing systems, some homes still have the unreliable polybutylene pipework.

USE OF PP-R-80 PIPES

 The pipe systems of ppr are used in hydraulic installations of cold and warm water, for domestic and industrial applications. PPR pipes ensure secure and without problems use for at least 50 years (maximum pressure lo bar maximum temperature 70oC). They are really strong with chemicals and they high resistance to corrosion.
 
    One very important advantage of the polypropylene pipe is the low thermal penetrability that ensures economy in hot water and preserves the quality of the portable water.
The connection is realised with a thermal welding tool. The process of thermal welding is easy and quick and it involves three stages.

     A. Cut the pipe
     B. Warm the pipe and the fittings up to 270oC approximately
     C. Connect them by pressing them for a few seconds

ADVANTAGES OF PPR PIPES

Life duration: Over 50 years in temperatures up to 80oC and operation pressure from 6 to 26 bar.
Perfect attitude to the hydraulic hurt: PPR pipes show resistance under very high pressure (more than 100 bar) in                  environment temperature. Minimum installation time.
Low thermal penetrability: Polypropylene in comparison to other materials has very low thermal penetrability                  resulting to economy in hot water and resistance to freezing.
Chemical endurance: It shows high resistance in chemicals. In the following table you can see its resistance to                  different chemicals under specific conditions (table 2).
Mechanical resistance: PPR pipeshave very good resistance in mechanic strength in compination with their elasticity                  that maintains even in very low temperature.
Endurance in corrosion: Polypropylene shows remarkable endurance to corrosion even in areas where the water is                  very hard, the material remains constant.
Low friction: The texture of the material and its smooth surface ensure minimum friction, with result the maintenance of                  the pressure within the piping system.
Certificates: The pipes are certified according to DIN 8077/8078 for mechanical resistance with the certificate SKZ.
Insurance covering: Elitherm quarantees insurance for any damage caused by a possible mistake in during the                  production of the pipe.

Polypropylene pipes produced by Elitherm are available in sizes from 20mm to 60mm and their basic characteristics are described in the table that follows (table 1).

The pipes are produced in green color in straight pieces of 4 m. They have printed the commercial title every one meter together with the type of the material, the DIN followed, the temperature and pressure

PPR Nano-Antibacterial Pipe

Nano-Antibacterial PPR Pipe through a special process and equipment, multi-layer co-extruded, low-temperature high-speed production of high-performance pipe, have the following characteristics:
1. Linear expansion coefficient of only ordinary PP-R for about 20-30%; completely solve the problem of plastic pipe stretching.
2. Pipe rigidity increased, to prevent the pipe sagging phenomenon, while also reducing the density and number of fixed support points, thereby reducing the cost of the project synthesis.
3. Pressure level higher power under the tremor in normal design life longer.
4. High temperature performance, better energy-saving effect of significantly reducing consumption; FP / PP-R used in hot water systems, the normal use temperature of up to 95-100 ℃, namely, to increase the use of medium temperature, but also reduce the thermal insulation materials thickness, its comprehensive and lower cost.
5. Water flow large: at the same level of pressure conditions, FP / PP-R pipe wall thickness of thin, increase the diameter of the pipe, thus increasing the water flow rate (an increase of 20%).
6. Solved the problem of pipeline gas permeable, direct contact with the water table within the Health and non-toxic, sealing is good, will not form sphagnum moss. Glass fiber reinforced FP / PP-R pipe middle layer of the composition, completely isolated from the outside air does not penetrate inside the tubes, thereby inhibiting the growth of algae, fresh water to maintain purity.

PPR pipe main stream

Domestic: PPR pipe main stream "as the hydropower project of the pipe, in just two or three years has been upgrading several times." Woodpecker decoration, according to the Commissioner of the registered inspector Zhaotai Yu introduced the first stainless steel tube, galvanized steel, and aluminum plastic pipe, and then include the PPR plastic pipes, etc., and, finally, the international standards of current and thin-walled copper tube. Which galvanized pipe, PVC pipe has been almost eliminated; plastic composite pipe, brass and stainless steel tube defects or because of their high cost and other reasons, the actual amount of decoration in the present is not, the most commonly used is the PPR pipes. However, "These pipes have not been the test of time, some construction in recent years the overall pipeline system problems occur, many of the hidden dangers left behind a few years ago." Such as galvanized pipe out of the muddy yellow water; aluminum tube compression easily when burst. Even the main stream of PPR pipe, there are some problems: In the long-term use in the precipitates will be generated on the human body has not yet been determined. Overseas: what the most widely used copper pipe quality is the best? It is understood that the current international use than brass. Brass both high and low temperature resistance, strength, environmental protection and sanitation has a distinct advantage. Copper in the developed countries or regions in both water supply and drainage system monopoly. Such as Hong Kong, copper accounted for 70% of the market, residential construction in the domestic water system is required by law to use brass. Britain and other developed countries established a higher prevalence of brass. But in China, the utilization rate has been low brass. Wuhan Golden Harvest Group Open Houses and technology lecturer Wu Jixiang told reporters, "In addition to the high cost of factors, but also, and we use the concept of a great relationship." Cities in the domestic market, according to optimistic estimates, about nearly 10% usage. Currently concentrated in high-end users brass, such as five-star hotel and senior housing communities. "By contrast, the phenomenon of burst water pipes in these areas will be significantly less than normal."