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Upper Structure Product Groups

Considerations, Service Life and Frequently asked Questions


PP is in crystallized (glassy) structure under 0°C. It should not be exposed to impact. It should not be carried by throwing during transport within or under this temperature.

While tubing spigot side slider should be installed by driving.

Pipe should be installed by pushing in an angle close to 90° to socket, otherwise it can drag the seal towards inside.

If especially flooring is made to sun exposed side, the pipe should be pushed to the end of socket in summer and it should be left when the end portion enters in winter to prevent elongation from causing deflection. Before inserting the pipe, how much it shall enter from the outside should be marked with a marker.

Cracks occur during eartquake shakings in earthquake zones. So, PP pipe should be used instead of rigid pipe in order not to encounter humidity.

There is no need for adhesives used in other pipes. It is harmful.

If stocking is made exposed to the sun, it must be ensured that pipes are straight in an environment with clamps. The temperature difference between upper and lower surface of the pipe may cause deflection. 

Mounting without seals should be avoided removing seal and fastening ring to ensure leakproofness and it should be ensured that there are no dirts such as dust, sand in sealing zone.

The product has a lifetime guarantee for 50 years.

Frequently Asked Questions

1. At how many degree flows can PP wastewater pipes be used?

Dizayn Silent Pipe and its additional parts show resistance to many chemicals up to 65 °C in continuous flows.  In domestic use, it shows resistance to 95°C short term flows in installations. Table of resistance to chemicals should be examined according to temperature and type of fluid to be carried in installations and availability of materials should be identified.

2. Why do Dizayn Pipes not break while others are breaking?

While raw material of others are manufactured from PVC with rigid feature, Dizayn pipes are produced from Polypropylene raw material with flexibility feature. When rigid materials are exposed to force, they are broken due to forces on pour point but flexible pipes change shape not broken.If filling material is added into PVC to bring down costs, break values decreased the values very much.

3. PP pipes cause deflection by elongating in vertical lines in South side. What should we do?

If pipes are upholstered in a hot environment in summer in a condition that it completed its elongation, the pipe should be inserted completely inside the socket and clamps should be used in each meter in a way required by the Standard. If pipes are upholstered in winter it means the moment pipe length is the shortest. Therefore, it shall elongate under sun in summer. Suppose that pipe was upholstered in 5 °C and heated up to 45 °C.  This means Δt = 40 °C. If our pipe is 1m, it shall elongate  0,15*40 = 6 mm. Once the spigot side of the pipe has passed the seal, it should be left to tolerate this elongation.  Pipe insertion distance within socket shall absorb this elongation.

4. When PP pipes burn, do they omit HCI gas which is toxic gas?

When PP pipes burn, they do not omit HCI gas which is toxic gas. PVC pipes omit HCI gas which is toxic gas. When PP pipes burn, they omit carbondioxide and carbonmonoxide. This amount is in burning wood parts order.

5. How much should clamp distance be in Dizayn Wastewater Extra Pipes?

Clamp distance in Dizayn Wastewater Extra Pipes should be appropriate for the valuse given below for horizontal and vertical lines depending on the diameter.