IRIND PAT and PAT with a wear-resistant layer (polyolefin) for overpass placement.
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Note: changing the angle of the wire intersection inside the PAT frame to increase the distance between the supports.
New structural composite pipes PAT (or PAT with a layer) filled with water have a sag of 70 mm (at t °С). (The distance between supports is 6 meters).
What happens to them at -40°С.
Temperature -40 +50 °C
Bending radius formula
Temperature correction formula
*The black pipe is from a new design. The gray pipe is a regular PAT.
- A person (78 kg) standing on a pipe sags by only 11 cm. What is this information for
-A regular plastic pipe, installed in 1 day, sags by 60 cm.
What is the wire thickness and winding count? What are the winding patterns on a standard PAT and a PAT (overpass)?
Distance between supports for PAT pipe and PAT with layer
Dn 50-315, 6m.
Dn 355, 5m.
Dn 400 and above, 4 - 5 m.
Coefficient of linear expansion for PAT pipes and PAT with a layer
8 .0 -8.5 *10 - 5 m/（m·℃）
Trial
What kind of photo is this, what do they mean, at what pressure did the pipe crush?
What do these photos prove?
*Increased rigidity of the pipe ring
*Increased resistance to negative pressure in the pipe
*Peel strength is measured ≥12 N/mm.
*The product does not delaminate during use.
