PEX-a – a type of PEX tubing. These tubing have longer life, high adaptability, ease of installation, light weight, low cost, resistance to corrosion.
Crosslink polyethylene – (PEX) plastic white, thermoplastic polymer of vinyl chloride. It features chemical resistance to alkalis, mineral oils, many acids and solvents. Off the air, but has a low resistance to freezing (-15 ° C). Thermal resistance – +65 ° C. Under normal circumstances, PEX tubing are sustainable, however, utilization of PEX involves a number of problems, one of which is the allocation of highly chlorinated compounds by burning it. In the production of tubing and fittings, apart from polyvinyl chloride, often used vinyls – unplasticized PEX. He has improved operational characteristics, can be a bit cheaper, and at the same time, compliance with the essential requirements for PEX tubing.
PEX tubing are widely used today in many areas of human activity. These tubes have properties typical for this polymer: reduced flammability and increased chemical resistance. In addition, they are less sensitive to UV radiation and have higher performance.
Another distinguishing feature – a high throughput. Inside these tubes almost smooth, so almost no resistance to movement of fluid through the tubing and prevents the formation of various deposits on the walls, do not corrode and have a high plasticity. In the operation of metal or concrete tubing are formed deposits on the walls, PEX tubing will not have this drawback, besides saving bandwidth guarantees safety for human health.
PEX tubing
Another advantage of PEX tubing – ease of installation, which is sufficient for very simple lever mechanical equipment. For comparison – for secure connections PEX tubing should be quite expensive special welding equipment and highly skilled installers. tubing made of PEX, easy to cut and bend, which ensures their high mobility and the possibility to arrange the most complex system configurations. Nevertheless, the simplicity and low cost structure does not preclude their reliability and durability.
In PEX tubing and is notable shortcomings. At negative temperatures their performance deteriorated greatly reduces the viscosity of the material. By a similar problem leads and the presence of scratches or cuts on the tube – in this case is sharply reduced impact strength of tubing, so if you need to connect PEX tubing with a metal does not recommend the use of threads. Accordingly, increasing labor costs and the cost of connecting tubing of different material.
Also, PEX softens at elevated temperatures, so temperature and operating conditions of tubinglines made of this material significantly limited from above (usually up to 60 degrees Celsius), although in some cases, allowed short-term excess of this limit.
Despite the limitations, PEX tubing are widely used for Plumbing and drainage systems, as well as for systems of plumbing, including drinking. Additional factors influencing the widespread use of tubing of this type have become low cost of manufacture and installation, and ease of connection. PEX tubing does not require expensive welding equipment, which reduces the requirements for the qualification of people to produce the assembly. This is a very important advantage of PEX tubing to plastic.
The main way to connect a stitch, while the connection is completely sealed. The strength of this connection is not inferior to the strength of the weld on metal tubing, so these tubinglines can be used, including pressurized plumbing. In many cases, the PEX tubing are preferred, since the conditions of the tubingline, which was built based on them are equal to or close to normal (for example, when constructing internal drainage), and then the main factor influencing the choice is their cheapness and ease of handling .
Our company offers to buy PEX tubing and fittings leading international and domestic manufacturers at reasonable prices.