To monitor the work of draining and cleaning of PEX plumbing tubing arrange viewing, as well as rotary wells. Most of them are made of concrete or reinforced concrete rings. Collected PEX plumbing tubing moisture enters the water intake well. His dig at the lowest point of relief, taking into account the topography of the site. Water can accumulate within a certain level, which depends on the depth of drains and the way of further removal of moisture. This water spending for irrigation, or it is discharged into the nearest ditch. Another option: groundwater and surface water can be directed to a special saturation well, having a depth of not less than 3m. If necessary, increase the capacity of the drains in the trench can put a combination of several PEX plumbing tubing of various diameters.

The quality of the drainage system depends primarily on the correctness and accuracy of its installation. The bottom of the excavated trenches tamped and fall asleep with a layer of crushed stone or gravel thickness of not less than 5 cm, on which he laid the tubing. This PEX plumbing layer is planned with a constant slope: in clay soils it should be at least 2mm/pog.m, in sandy 3mm/pog.m. In reality, for a good flow of water needed deviation of 5-10 mm. 1 running. m tubing. The cut in the size of the drains connect to each other movable PEX couplings, PEX tees, PEX elbows and other fittings.

After the installation and performance testing of tubing asleep PEX materials. Closer to the drain poured a layer of washed gravel or gravel with a grain size of not more than 16 mm. On top of the geotextile fabric stelyut separating it from the layer of sand fraction 0,5-1 mm. Depending on the permeability of the surrounding soil layer thickness ranges from 10 to 30 cm – the lower the permeability, the skinny back filling. Back-fill drains should be carried out very carefully so as not to disrupt the connections and does not change the slope of tubing. Well, the top layer of plumbing cover previously excavated soil from which the pre-remove stones. Often, to improve the collection of water instead of land completely fill the trench permeable soil and covered with grass.

Depth of laying PEX plumbing tubing depends on the level of groundwater, and in addition determined by the depth of frozen soil, the degree of penetration foundations of a house and several other parameters. In any case, the drains have not less than 80 cm from the surface. Water is allocated by gravity due to bias or force the pump into the overall PEX ditch, street ditch, ravine, decorative pond, PEX plumbing pit or storm plumbings.

Obviously, when laboratory tests are not always able to reproduce the conditions that comply fully with the practice. In this case, the manufacturer is responsible for ensuring that the system proposed by the client, was a reliable and practical. This requires some experience and know-how in areas like manufacturing of PEX products, and installing them on site.

Despite the dominant role of the factor of reliability of the pipeline, which can be expected lifespan of 100 years, this aspect sometimes gets low priority because of the short-term benefits associated with the use of certain products, if the document confirming the permissibility of their use.

Mounting PEX fitting should occur, in general, in accordance with applicable directives and instructions for installation of the manufacturer.

The most important developer of products has been and remains the consumer. Only through his signals on the shortcomings of the product may solve problems that arise in practice, and its further improvement.
Basic

In developing the PEX fittings with mortgages electric heater crucial given the following parameters (note the manufacturer’s data!):

weldability of different materials pipes (PE 80, PE 100 and PE-Xa);

temperature range from 15 to +50 ° C;

wall thickness of SDR 17,6 (17,0), SDR 11, SDR 7,4 (standard sizes in Germany), irregular sizes SDR 41, SDR 21 and SDR 6 apply to the use of relevant parameters;

weldability sedelok, including cutting holes in the main pipe, for all standard sizes of pipes without pressure and, depending on the design, the maximum allowable working pressure.

The most perfect is the remote automatic continuous stepless control. The least perfect – manual regulation of the local periodical.

By way of joining pipe PEX fittings divided into flanged, threaded, tsapkovuyu, choke and with pipe weld (weld).

Flanged valves have the connections, fitted with flanges, socket – coupling with internal thread. PEX fittings for sewer networks can be threaded connections without internal thread, conical cavity which when combined with the pipeline are sealed with a rubber ring and filled with sealing material. Plumbing fixture has the connections with gasket seal and the outer thread, choke – with male thread without cushioning seal.

Reinforcement welding has the connections provided and prepared for welding to the pipeline.

Not all designs valves can be mounted in any position on the pipeline. In this connection, valves can be divided into construction, allowing for installation in any position, allowing for installation in a vertical position to a horizontal pipe and allow to install only on a vertical pipe.

The magnitude of the diameter nominal bore valves distinguish small passages (D y = 40 mm), medium hikes (D y = 50-250 mm) and large passages (D y> 250 mm).

The magnitude of the conditioned pressure valve can be divided into three main groups:

low-pressure P y <10 kg / cm 2 (1 MPa);
average pressure of 16 <P y <64 kg / cm 2 (1,6.6,4 MPa);
High pressure at 100 <P y <1000 kg / cm 2 (10.100 MPa).

Working conditions are determined by PEX fitting a large number of factors: the operating pressure of the medium, working temperature, physical and chemical properties of the working environment, fluctuations in pressure and temperature intervals execution cycles of operation, or switching, tape drive, the location of valves in pipelines located in the open or indoors , climatic conditions, etc.

The relevant section you can explore further:

- Certificate of PEX fittings – Certificate of Conformity
- Certificate of PEX fittings – Certificate of product quality
It should be noted that the certificate on the PEX tubing – it is a prerequisite. Certificate of PEX tubing should be in any manufacturer of tubular products. The company “Matca-Norca PEX fittings” works only with reputable manufacturers in the market.

http://www.tms-nc.com/ – Best fittings manufacturer.

1) by way of the overlap of the flow;
2) on the application;
3) depending on operating environment and its parameters;
4) the material base parts;
5) the method of administration;
6) on the functional purpose;
7) on a way of accession to the pipeline;
The largest diameter of the port area;
9) The largest conditional pressure.

Characterized by PEX fitting performance and structural properties. Performance specifications define the scope of reinforcement, construction – design features that affect the method of management, installation, maintenance and repair.

By operating characteristics include:

class armature
type of product;
material of main parts;
type of drive.

Construction characteristics of the valve are:

face length;
Building height;
type of the connections;
a way of accession to the pipeline;
type sealing rings.

By way of the overlap of the flow valves are categorized as follows:

bolt – the bolt in the form of disk, plate or wedge, makes reciprocating motion along its plane perpendicular to the axis of flow. The principal feature of gate valves is that when they are closing the locking element does not overcome the efforts of the pressure medium, as it moves across the flow. In the gate valve when closing is necessary to overcome friction only. Therefore, valves may be used for the largest passageways and working pressures.

Installation compounds Uponor Wirsbo WiPEX

Fittings, which are used in combination with PEX fittings WiPEX (PEX tees, PEX couplings, PEX elbows, PEX adapters and so on. N.), the highest standard and are made with high accuracy. PEX Crimp clamps have a special groove to contain the O-ring o-ring. Any plumbing system made in technology Uponor Wirsbo, is capable own compensate linear temperature elongation and does not require the implementation of compensator.

It must be remembered that when the pressure or temperature, all the elements of the connection WiPEX subjected to significant compressive or tensile forces, so besides the main seal, which is done with the help of tow or flax, it is recommended to use an additional ring o-ring.

Installation of the system is quick and easy, requires no special expensive tools and executed without gluing soldering and threading.

Connection is very simple and reliable. At the critical tensile loads, broken pipe, and the connection remains tight and is not destroyed.

Connection types Quick & Easy applies to installation of PEX pipe: Ø16-40 mm. In water supply systems – Uponor Wirsbo-PEX (operating temperature 95 ° C and pressure of 6 and 10 atm.), And PEX heat transfer plate PEX radiant heating systems – evalPEX (operating temperature 95 ° C and pressure of 6 and 10 atm.).

Quick & Easy Connection can be performed at subzero temperatures (-15 ° C).

In the technology Quick & Easy can be used only original pipe, ferrule, coupling elements and the expansion tool Swedish concern Uponor Wirsbo.

Connections samoobzhimnye Uponor Wirsbo Quick & Easy Master, based on the use of PEX fittings, Polysulfone PSU.