General requirements for storage of pipes, transporting and working with them.

The ends of the tubes should be closed or protected so that dust and dirt would fall into PEX pipe.Pri storage, transportation and working with pipes, you need to be able to save the original packaging.

You can not keep the pipes under the direct sunlight, so long as the UV radiation affects the properties of the pipe.

Work on storage tubes need exercise care not to damage them.

In the case of mechanical lifts, the equipment should not damage the pipe.

Steel slings, hooks and chains should not come into direct contact with the pipe.

The bottoms of used vehicles should be smooth, blunt, or any other protruding structures.

After fixing the pipes, heating circuit is filled with concrete. Before filling the obligatory in a hydraulic test system under the pressure of 0,6 MPa for 24 hours.

Seamless concrete floors, formed after filling the heating circuit performs several important functions. First, it contributes to a uniform temperature distribution on the floor surface, and secondly, assumes operating loads and protects against damage to the pipe and the insulation layer. The thickness of the concrete layer must be at least 30 mm, and the total thickness of the floor from the surface to the layer of insulation (including pipe) – 50 mm.

Heating circuit must be made of one piece of PEX pipe or fitting connected to the press, pouring concrete, prefabricated joints is not allowed. It should be remembered that the minimum bending radius is R = 5D mm.

General view of the floor heating system is shown in Fig. 5.1.

PVC fittings used for installation of plumbing

pipe diameter ØØ16-40 mm. The principle of connections, Q & E Master is the same as for compound Q & E.

PVC fittings are light and resistant to the effects of high and low temperatures (up to 149 ° C) and pressures. They are not destroyed by freezing in the water.

To prevent exposure to ultraviolet radiation and rapid aging, PVC fittings are made only in black. Due to the smooth inner surface of the fittings and PEX pipe in the system there are minimal pressure loss and completely absent probability deposits mechanical and chemical sediments.

PVC fittings are resistant to the effects of “aggressive” chemicals (inorganic acids, alkalis, salt solutions and hydrocarbon oils). However, they are not recommended for use in contact with organic solvents, such as: acetone, chlorine and aromatic hydrocarbons.

Main technical data PVC fittings:

* The density of 1,24 kg / dm 3
* The coefficient of linear expansion of 5.6 x 10 -5 mm / mm x ° C
* The coefficient of thermal conductivity 0.26 W / mx ° C
* Maximum temperature 149 ° C
* Brittleness temperature of 100 ° C

The temperature boundary time, after which you can test a system for leaks

Connections WiPEX used for installation of PEX pipe Ø32 – Ø110 mm.

Connections WiPEX specifically designed for connecting PEX plumbing Uponor Wirsbo-PEX used with a system of economic – drinking water and hot water, as well as in centralPEX radiant heating systems, both internal and external.

Connections WiPEX used for PEX pipe Uponor Wirsbo-PEX and Uponor Wirsbo-evalREH and produced two types:

* For PEX pipe on the pressure of 6 bar – Ø32 – 110 mm – Series 5,0 for plumbing;
* For PEX pipe at a pressure of 10 bar – Ø32 – 110 mm – Series 3,2 for plumbing;

The inner surface of the fittings (C 32-10 – 110-10 K) in direct contact with water and, therefore, is made of food which is resistant to dezotsinkovaniyu brass [SuZn36Pb2As] (in accordance with the requirements of certificates: Statens Planverk, Sweden, DR), and the outer – of stainless acid resistant steel [SuSn5Pb5Zn] or bronze. The compounds of the type K 32-6 – K 110-6 fulfilled: the inner surface – from the food which is resistant to dezotsinkovaniyu brass;

The design provides the ideal connection WiPEX crimped tube, which guarantees a reliable and durable connection. Tear resistance WiPEX connection with the pipe is higher than the resistance of the duct and therefore changes in temperature have no influence on his integrity

To seal the adjoining parts of the compound WiPEX, use a rubber – silicone ring o-ring. All materials used in combination were tested for resistance to various mechanical loads and corrosion.

1. sealing sleeve;
2. Split locking ring;
3. knurled crimp nut with internal thread.

In the case of connections for PEX pipe and crimp evalREH nut has an internal metric thread: M 22 x 1,5 pipe Ø16; M 28 x 1,5 pipe Ø20; M 34 x 1,5 pipe Ø25.

Use screws with fine thread provides the most tight connection and provides a leak in the change in temperature of the system. In floor PEX radiant heating systems, to connect to the PEX pipe (20 x 2.0 mm) is used crimp nut with female thread G 3 / 4 “. When choosing a set with PEX crimp connection nut should be remembered that the Split locking ring and nut for PEX pipe and evalREH are the same size, and sealing plugs are different. The difference is explained by the fact that PEX pipe Ø16-25 mm are designed for systems under pressure of 10 bar and pipe evalREH – 6 bar. PEX pipe wall thickness are as follows: pipe Ø16- 2,2 mm for pipe Ø25-3, 5 mm, and thickness of pipe walls evalREH are smaller and are as follows: pipe Ø16 mm – 2.0 mm for pipe Ø25 mm – 2,3 mm.

Each sealing sleeve on the outside caused the size of the pipe, for which it is used. The catalog of products Uponor Wirsbo sets represented crimp nuts for the PEX pipe used in water andPEX radiant heating systems, and depending on it are individually numbered.

Note: when using PEX pipe evalREH pressure of 10 bar, it is necessary to use mechanical screwed connection with crimp nuts for water supply systems (for PEX pipe Uponor Wirsbo-PEX).

* Cut PEX pipe perpendicular to its axis, leaving no burrs
* Wear crimp nut and locking the cutting ring on the end of the PEX pipe
* Insert the PEX tube inside the sleeve, it should go there all the way
* Crimp tool attached to the outer thread of responses and manually turn until it stops.

Then with a wrench it fix about 1,5-2 turnover.

In the compounds of this type, with the original elements of Uponor Wirsbo PEX, sealing is carried out by contact of metal surfaces (metal – metal) without the use of rubber seals. In this connection, the connection will always be sealed regardless of the temperature and duration of operation.

In compounds of another type, with rubber sealing elements, sealing depends on the life of seals.

At high temperatures, water (coolant), a hot water supply systems, or PEX heat transfer plate PEX radiant heating, the service life of these spacers is about 5 years.

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.