PVC fittings or poly vinyl chloride units are items that are used with PEX tubing in numerous plumbing systems. Traditionally, there were items made with copper used in any kind of plumbing system, but to overcome their limitations, now items made with PVC are used.
Just like any PEX fitting, these units are also inclusive of other pieces also such as elbows, couplings and tees. Although they are similar in appearance to PEX fittings but there is one difference that they are made up with PVC. This is a plastic like material that possesses high resistance to breakages and leakages which is why it is used in all kinds of applications that require great strength and long lasting durability. For this reason, it is used for making all kinds of PVC fittings that can be used along with tubing and piping systems.
Mainly couplings, tees and elbows are considered as fittings that are used in carrying out the plumbing systems. They are used as fittings to join two or more connections or to extend a single pipe line to the requisite length. This helps in supplying water to the desired location. In addition to this, the PVC fittings are also units to be used for increasing efficiency of a water plumbing mechanism. They are robust yet compatible units that can be installed with ease. It is also easy to supply water through them without any kind of noise, thereby improving the overall working of the water supply system.
PVC is considered as one of the finest material to be used in water supply systems after PEX. It is not only robust and strong like it but it is also flexible and can be used for any kind of water supply system. Best thing is to make use of PVC fittings and PEX tubing in a single system so as to make it more strong and versatile.
You can buy plastic polypropylene pipes and fittings of pipes. Here you will find two pipe diameters of 50 and 110 diameters, bends, tees, audit with a lid, couplings, pipe transition, etc.
Polypropylene tubes are often used in the construction of most houses in U.S and around the world. Such an extension tube made of polypropylene obtained thanks to its properties: high chemical resistance, corrosion resistance, the absence of deposit formation and sectional encrustation easy transportation and storage, light weight and smooth surface.
In addition, the pipe made of polypropylene have high thermal stability. Sewage pipes of this material may be to transport waste water whose temperature is 95 degrees. This is important, because many homes are set washing machines and dishwashers with a drain, in which the water temperature reaches 90 degrees. Therefore, PVC pipe fitting having thermal resistance of 60 degrees, more rarely installed in new homes.
Scope is wide enough. PEX tubing is intended for use as a covering material, which has protective, insulating and anticorrosive properties. That is why the plastic tube is used to seal the wires and cables, including power, soldering wires to carry tire cords. In addition, PEX tubing can be used for decorative purposes, because it is different colors. PEX tube, which offers the company “BOW fittings” meets all the requirements laid down in the technical conditions for its manufacture.
The company “BOW fittings” sells various types of tubes of polyvinyl chloride and PEX: a protective plastic tube, tube reinforced PVC and PVC drainage tubing.
The problem of “residual water” when connecting to the house. Repair sleeve (Fig. 3) decreases in the assembled condition the possibility that the “residual water” in the zone of welding due assembled into a sealing circuit. Integrity is preserved under the pressure reached about 1 bar. A prerequisite for the application of repair bushings is their convenience for use in any part of the PVC pipe fittings due to the great flexibility. Nevertheless, their use is limited to diameters of 32 to 63mm in SDK 11.
The problem of “residual water” at Ø> 63 mm. Technology use is limited to repair sleeves 63 mm due to the inflexibility of large diameter pipelines and related complications installation. Another way to prevent residual water in the zone of welding is common in the area of gas technology installed locking ball, which is due to the high flexibility allows to overlap the different diameter PEX pipe. To install a shut-off ball, you must first drill a hole in the pipe. The drill is inserted through the nipple pad (Fig. 4). This pipe-lining can be welded to the tube and after the repair is brewed using plugs. An alternative may make PVC fittings, which is dismantled after the frame, and cut a hole sealed amplifying gag-strip. This way you can avoid standing water which can gather under the dome of the pipe-lining. Locking ball significantly reduces the likelihood of “residual water in the zone of welding. It should be noted that before closing the ball should not be pressure, ie, water storage should be derived through the drilled hole. After completion of the frame or repairs with the help of plug-in of fitting parts or movable clutch locking ball is pulled from the pipe, and the hole sealed by one of the above methods (Fig. 5). After the expiry of the cooling of parts and washing water, he is again ready for operation.
Alternative locking ball – film cap. New discoveries in the field of film technology offers an interesting alternative to installing a shut-off ball – water soluble film. They reduce the possibility of water in the area of welding at a certain time, and then dissolve in it. The membrane consists of a non-toxic polyvinyl (PVAL) and polyethylene insert that is authorized for use in potable water. To mount the film membrane (Fig. 6) is introduced into the open end of the pipeline. Compaction occurs due to the integrated sealing jaws. After the restoration of the pipeline remains film membranes are washed out during the flushing water.
In the past few decades, polymers have become one of the basic materials for the production of PEX pipe throughout the world. These PEX pipe have ushered in unprecedented first level of reliability and efficiency of water supply, PEX radiant heating, sanitation and transportation of various media. But the potential of PVC is far from exhausted, constantly creating new, better songs and developed new high-tech types of PEX pipe.
History of PVC fittings is calculated over the centuries. During this time they have come a long way from the tubes of cane to multicomponent systems, can withstand high pressure and high temperature.
The appearance in the middle of XX century. First PEX pipe for drainage has been a revolution in public utilities. PEX pipe made of polyvinyl chloride (PVC) have replaced the metal and allowed as soon as possible to modernize the system of drainage. Consider the most interesting innovations in the field of PEX pipe on the areas of application.
It was tverdostennaya PVC pipe. For many years she enjoyed the same success, and continues to apply until the present day. But technology is not standing still. And the whole family of non-pressure PEX pipe has been developed and offered to the market. One of the works was improving the material properties, resulting in a high-impact PVC pipe, which reduced the main disadvantage of conventional PVC – fragility. Fundamentally new type of product has three-pipe made of PVC. It foamed through porofora inner layer of the TM-BX is protected on both sides of the usual material. This technology allows for a much larger diameter PEX pipe, while maintaining low weight. The most successful today have dual-layer corrugated PEX pipe made of PVC first, then from PEX (PP) and polyethylene (PE). High ring stiffness of these tubes in combination with a linear flexibility and minimal weight allow them to produce up to 2,5 m in diameter and used in almost any conditions. On the basis of corrugated pipe created a variety of drainage systems, immediately and completely replaced not perforated PEX pipe.