DESO PPR Pipe System

Transcription

1 DESO PPR Pipe System Nowadays, polypropylene is one of the most extensively used plastics in the world due to its diverse applications and being economical. DESO PP-R (Type 3) Pipes and Fittings are made of High Molecular Weight Polypropylene Random Copolymers suitably stabilized for high temperature applications and especially with high environmental stress cracking resistance that means long service life. Depending on pressure it is possible to use DESO PP-R pipes for constant temperatures up to 70 with service life of more than 50 years. Peak temperatures of 110 arising from short disruptions are unproblematic. DESO PP-R (Type 3) Pipes and Fittings are produced according to German standards DIN8077/8078. The raw materials are Vestolen P9421 imported from SABIC Europetrochemicals. The production process used for PP-R pipes on the easy workability of this material makes it possible to obtain extremely smooth inner surface. The products have obtained Sweden Bodycote Polymer AB Institution 8760 Hours Product Test, etc. And now we are applying for German SKZ certificate. Following the business principle of Achieving mutual benefits from good cooperation and Quality is the life of the enterprise. We have established good sale network around the world. We'd like to cooperate with new and old customer to build up splendid future. Advantages DESO PP-R system provides combination of benefits in handling cold and hot water, as it provides: Long durability due to the high resistance to aggressive elements, which gives the system extremely long service life of 50 years and more. Incomparable smooth and porosity-free internal surface of both pipes and fittings. Which results in a very low pressure loss and absence of incrustation (reduction of section due to the limestone and scaling). Nontoxic and Physiologically harmless material. Resistance to bacteriological attack thus enabling safe potable water transfers. Resistance to wide range of chemicals and so corrosion is avoided in service lines. Good impact strength so as to be used in all environments and around buildings. Heat preservation and energy saving abilities. The heat conductivity of PP-R pipes are much lesser than metals and hence offer significantly high levels of heat preservation for transported fluids. High acoustic insulation against fluid noise. The fluid flow and hydraulic shocks with in the building create noise which can be very well avoided by the noise absorption ability of PP-R materials. Lighter weight compared to the metallic piping systems (1/9 of the steel specific gravity). Convenient and reliable installation methods. The PP-R pipes can even be installed in suspended form under ceiling without problem of flexion. Easy connectivity over a complex network.

2 No perforation caused by electrical currents. No furring while cutting. Cost effective pipeline network. Safe environment with recyclable ability. Production Standards DESO PP-R system is produced according to the following German Standards: DIN1988 DIN8077 DIN8078 DIN16962 DIN16928 DIN4109 DIN8076 DIN2999 DVS2206 DVS207 Drinking Water Supply Systems Polypropylene Pipes: Dimensions Polypropylene Pipes: Testing Methods Polypropylene Pipes: Quality Control and Connections Thermostatic Pipes: Pipe Constructions Sound insulation in Building Constructions Metal Threaded Joints Testing Method Rules for Fittings with Threaded Metallic Inserts Regulations for the Welding of Thermostatic Material Welding of Thermoplastic Materials by means of Heating Tools Technical Index Polypropylene Material Properties Property Test method Unit Value Melt flow rate ISO1133 MFR 190/5 g/10min 0.5 NFR 230/2.16 g/10min 0.3 MFR 230/5 g/10min 1.5 Density ISO1183 Kg/m3 898 Flexural modulus ASTM D790 Mpa 900 Tensile properties ISO 37 Tensile stress at yield Mpa 27 Tensile strength at break Mpa 32 Elongation at break % >50 Impact strength (Charpy) ISO 179/1eU 23 KJ/ m2 No failure 0 KJ/ m2 No failure -10 KJ/ m2 No failure Notched impact strength ISO 179/1eA (Charpy) KJ/ m KJ/ m2 4 0 KJ/ m Ball indentation hardness ISO 2039 T1 (132N) Mpa 43 Coefficient of linear thermal expansion VDE 0304 Part1 4 K

3 Thermal conductivity DIN W/Mk 0.24 Specific heat Adiabatic calorimeter KJ/kg K 2.0 Vicat softening temperature At 10N At 50N ISO 306/A ISO 306/B Pressure and Temperature DESO PP-R pipes are PN10, PN16 and PN20 as recommended by the international standards. The following table shows the lifetime of DESO Polypropylene pipes and fittings at various selected pressures and temperatures. Pipe S 5 Pipe S 3.2 Pipe S 2.5 Temperature Service life Pipe SDR 11 Pipe SDR 7.4 Pipe SDR 6 (Years) Pipe PN 10 Pipe PN 16 Pipe PN 20 Maximum permissible working pressure, in bar

4 Hydrostatic Pressure Performance Long-term Resistance to Hydrostatic Pressure of DESO PP-R Pipes Pressure Loss PPR PIPES Series:PN10/SDR11/S5 Color: Blue, Gray, Green, White Length:4m/ 5.8m Pipe Diameter Wall Internal Water Thickness Diameter Content Art-No. Dimension Packing unit d(mm) s(mm) d1(mm) 1/m mm 100m mm 100m mm 40m mm 40m mm 20m mm 20m mm 20m mm 12m mm 8m mm 4m Series:PN16/SDR7.4/S3.2 Color: Blue, Gray, Green, White Length:4m/ 5.8m Pipe Diameter Wall Internal Water Thickness Diameter Content Art-No. Dimension Packing unit d(mm) s(mm) d1(mm) 1/m mm 100m mm 100m mm 40m mm 40m

5 mm 20m mm 20m mm 20m mm 12m mm 8m Series:PN20/SDR6/S2.5 Color: Blue, Gray, Green, White Length:4m/ 5.8m Pipe Diameter Wall Internal Water Thickness Diameter Content Art-No. Dimension Packing unit d(mm) s(mm) d1(mm) 1/m mm 100m mm 100m mm 40m mm 40m mm 20m mm 20m mm 20m mm 12m mm 8m DESO PP-R/Aluminium composite pipe System DESO PP-R/Aluminium composite pipe is composite pipe of five layers, inside and outside layers of which are made of PP-R, tightly bonded with melt adhesive to the mid-layer of aluminum core which is longitudinally welded in an overlapping way. The inside and outside layers of PP-R make layer of AL is 100% of gas/oxygen tight. All these giving it advantages of both metal and plastic pipes, but eliminates their own disadvantages. Advantages of PP-R/AI Composite Pipes Over PP-R Pipes Advantages of PP-R/Al Composite Pipes Over PP-R Pipes Greatly reduced linear expansion coefficient, only 1/4 of that of PP-R material. 100% oxygen tightness, very suitable for heating systems. Improved resistant to impulse under low temperature, resistant to uv-rays. Woking under higher temperature and higher pressure. Easily detected by detector when embedded, owing to the metal layer in the middle. Specification Material: PP-R joint with aluminium Colour: Green, Gray, White, Blue Supply length: Overall lengths of 4 meters as well as other demanded lengths

6 Nominal Outer Thickness of Inner layer(mm) Diameter(mm) S5,SDR11 S3.2,SDR7.4 S2.5,SDR *Fitting and accessories are as the same as those of PP-R pipe system,and special paners are needed as well. DESO PP-R/Fibre Composite Pipe System DESO PP-R/Fibre Composite Pipe of three layers, Inside and outside layers of which are made of PP-R, the mid-layer is made of PP-R/Fibre composite, which greatly improves the characters of pipes as used for transfer of hot water. Advantages of PP-R/Fibre Composite Pipes Greatly reduced linear expansion coefficient, only 30% of that of PP-R material. Higher strength and stability of dimension. Improved resistant of impulse under low temperature. Excellent resistance to high temperature. Nominal Outer Thickness of Inner layer(mm) Diameter(mm) S5,SDR11 S3.2,SDR7.4 S2.5,SDR *Fitting and accessories are as same those PP-R pipe system.

7 PPR Fittings Items Art No. Size Items Art No. Size Items Art No. Size mm mm /20mm mm mm /20mm mm mm /25mm mm mm /20mm mm mm /25mm mm mm /32mm mm mm /20mm mm mm /25mm mm mm /32mm mm mm /40mm mm mm /20mm mm mm /25mm mm mm /32mm mm mm /40mm mm mm /50mm mm mm /40mm mm mm /50mm mm mm /63mm mm mm /50mm mm mm /63mm mm mm /75mm mm mm /63mm mm mm /75mm mm mm /90mm mm mm mm mm mm mm mm mm mm mm mm /20/25mm mm mm /20/32mm mm mm /25/32mm mm mm /20/40mm mm mm /25/40mm mm mm /32/40mm mm mm /20/50mm mm /20mm /25/50mm mm /20mm /40/50mm /25mm /20/63mm /25/63mm /32/63mm

8 /40/63mm mm /50/63mm XRP1/2"f mm /32/75mm mm /40/75mm XRP1/2"f mm /50/75mm XRP3/4"f mm /63/75mm X3/4"f mm /40/90mm XRP1"f 90020s 20mm /50/90mm XR1/2"m 90025s 25mm /63/90mm XR1/2"m 90032s 32mm /75/90mm XR3/4"m M7-20mm /50/110mm X3/4"f M7-25mm /63/110mm XR1"m M7-32mm /75/110mm XR1/2"m M7-40mm /90/110mm XR3/4"m M7-50mm XRP1/2"f XR1"m M8-63mm XRP1/2"f XR1-1/4"m M8-75mm XRP3/4"f XR1-1/2"m M10-90mm X3/4"f XR2"m M10-110mm XRP1"f XRP1/2"f mm XRP1-1/4"f XRP3/4"f mm XRP1-1/2"f XRP1"f mm XRP2"f XRP1-1/4"f mm XR1/2"m XRP1-1/2"f mm XR1/2"m XRP2"f mm XR3/4"m mm mm XR3/4"f mm mm XR1"m mm mm XR1-1/4"m mm mm XR1-1/2"m mm mm XR2"m mm mm XRP1/2"f mm mm XRP1/2"f mm mm XRP3/4"f mm mm XRP1"f X20mm mm XRP1/2"f X25mm mm XRP1/2"f X32mm mm mm X40mm XRP1/2"f mm X50mm XRP3/4"f mm X63mm XRP1"f

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10 Electric Welding The electric coupling can be used for repairs or welds after installation of the pipes, using the electric welder. Sequence of operations 1. Prepare the pipes to be welded so that they are cut perpendicular to their length, using the special pipe cutter 2. Clean the joint area. 3. After marking the connection depth on the pipes, fit them into the coupling, ensuring that the ends of the pipes are as close to each other as possible and properly aligned. 4. Prepare the welder, making sure that it is connected to a mains power supply of 220 V 50 Hz, and that the power supply lead is completely extended. 5. Connect the wire terminals to the terminals on the coupling, ensuring that the weight of the wires does not rest on the joint. 6. Start welding, following the instructions on the welder. 7. Make sure that no stresses are applied to the pipes during welding and the subsequent cooling phase (at least 10 minutes). 8. Wait at least 1 hour before pressurizing the system. Repair If a hole is accidentally made in the pipe (with a drill bit, for example) and if the hole is in only one side of the pipe, it can be repaired using the hole repairer die, bearing in mind that the pipe size must be compatible with the die diameter. Clean and dry the part to be repaired. Fit the male part of the hole repair die into the hole; it must melt the surface to be welded. The die has a metal bush which can be adjusted by the operator to suit the pipe thickness, to ensure that the die cannot be inserted too far and melt the other side of the pipe. To make this adjustment, undo the screw which fixes the bush and then move it along the die. At the same time as the male part of the die melts the area around the hole, the female part melts the repair bar. Once the heating time has passed (5 sec.) the repair bar must be inserted in the hole. When this operation is complete, wait for everything to cool and then cut off the excess part of the repair bar.

11 If the diameter of the hole to be repaired is greater than that of the die, or both sides of the pipe are punctured, the piece of pipe must be cut out and the repair made using normal pipe or fittings, or more easily using the electric couplings.