Double thermal fusion fittings reducing 90 elbow for PERT-AL-PERT pipe
The multilayer pipes PERT/AL/PERT are composite pipes that are produced by the butt welding method .They are composed of an inner and outer layer of PERT, that are bonded by a special glue to the intermediate layer of aluminium. By that way, a perfect oxygen barrier is accomplished, that ensures their perfect unruptured connection.
They are characterised as pipes of the century,because they combine the advantages of metal pipes (small linear expansion and high mechanical strength) with the advantages of plastic pipes (flexibility, without formation of salts inside the pipe, resistance to electro corrosion, low noise level, fast and easy installation )
The materials used to form the pipe are as follows:
Outer Layer: Polyethylene raised temperature (PE-RT) plastic coat: protects the aluminium core and allows the outer shell to be coloured without contaminating the water.
Adhesive layer: interface zone between the outer PE-RT layer and the aluminium core. Bonds the material together and prevents shear slippage.
Aluminium layer: thin layer of lap welded aluminium which forms a 100% oxygen barrier to protect against corrosion and allows the pipe to have the ‘form-stable’ characteristic.
Adhesive layer: interface zone between the inner PE-RT layer and the aluminium core. Bonds the material together and prevents shear slippage.
Inner layer:inner layer of clear PE-RT. Inert and does not affect the water in any way. Allows for a smooth wall surface to reduce pressure drops for water flow.
Technical Specification
| Tolerance | Diameter | emWall thickness | Tolerance | Roundness | Aluminum wall thickness |
| Outer minimum thickness | Inner wall thickness | ||
Coil | Straight | Nominal value |
| ||||||||
16 | +0.30 | 10.9 | 2.3 | +0.50 | ≤1.0 | ≤0.5 | 0.28 | ±0.04 | 0.3 | 1.4 | ±0.1 |
20 | 14.5 | 2.5 | ≤1.2 | ≤0.6 | 0.36 | 1.5 | |||||
25 | 18.5 | 3.0 | ≤1.5 | ≤0.8 | 0.44 | 1.6 | |||||
32 | 25.5 | 3.0 | ≤2.0 | ≤1.0 | 0.60 | 1.7 | |||||
Physical Mechanics Features
Coefficient of thermal conductivity | 0.45W/(m.k) |
Thermal expansion coefficient | 2.5×M(m.k) |
Bending radius | ≥5D(D:Tube diameter) |
Working temperature range | -40~+95°C |
Work pressure | ≤1.25Mpa |
Penstock radial tension | 2300~3270N |
Blasting strength | 5.5~8Mpa |
Difference between butt welding pipe and laser welding pipe:
| Item | Butt Welding pipe | Overlapping welding pipe |
| Long time working tempurature | 95°C | 82°C |
| Permit working pressure | 1.25Mpa | 0.86Mpa |
Applications:
A.Cold and hot water distribution.
B.Solar system, air-conditioning and refrigeration system
C.Underfloor heating PEX systems
D.Medical, foodstuff and chemical industries PEX pipe systems
E.Gas and air distribution
Product Advantages:
A.Great flexibility
B.No salts are deposited on the inner surface
C.Without electrolysis
D.Small thermal expansion
E.Resistance to adverse conditions (high temperature, high pressure)
F.Wide range of dimensions
G.Easy connection to all conection systems of plastic pipe
H.Guaranteed quality and insurance for their good function
I.100% oxygen barrier existence
Size:
| reducing 90 elbow | 20*16 |
| 25*20 | |
| 32*20 | |
| 32*25 |
Sample Availability & Policy
We will provide free samples with the freight paid by our clients.But if you shows sincerity,it depends.
Guarantees/Warranties/Terms and Conditions
We guarantee our products to be free from manufacturer defects.
Export/Import Processing Support
We handle all our raw plastic materials which is imported from abroad and guarantee for the delivery time for the products.
After Sales Service
We have Customer Service personnel to help you to solve all the problems in efficient way.
Q:What material are you specialized in?
A: We manufacture PE, HDPE, PPR, PB, PE-RT, Aluminum composite pipes and fittings.
Q: Do you produce PVC pipes and fittings?
A: Sorry, dear friend. We are more professional PE and PPR pipe and fittings.
Q: Please tell me your largest outer diameter for pipes.
A: We can produce 1600mm diameter as the largest size.
Q: The price of your products is higher than others.
A: We can't promise you the best price, but we can promise you the best quality. We import raw material from famous companies such as LG Chemical, Iydellbasell, Chervrom, Sinopec.
Q: For pipe fittings, what do you do mainly?
A: For fittings, coupling, elbows, tee, reducer, valve and cap are our main products.
Q:Where is your factory located in?
A: Our factory located in Tianjin City, which is only one hour away from Beijing airport.
Q: Can you provide us some samples for testing?
A: Of course, my friend. For small amount of samples, we can provide you for free.
Q: How is our customer service?
A: all our sales representatives can speak fluent English. They will answer all of your questions in 24 hours.