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  4. PVC plastic corrugated pipe inner diamet...

PVC plastic corrugated pipe inner diameter specifications and dimensions

PVC plastic corrugated pipe inner diameter specifications and dimensions

Plastic corrugated pipe is a single-wall corrugated pipe extruded from polyethylene (PVC) through a plastic extruder. It is used for post-tensioned prestressed concrete structures and used as a prestressed ribbed pipe. It is an ideal product to replace the original metal corrugated pipe in bridge and building construction. Plastic corrugated pipe are divided into two categories: round pipe and flat pipe, which are supplemented by various types of plastic connecting pieces in actual use.

The raw material of the circular plastic corrugated pipe of the bridge is PVC. Its corrosion resistance is far superior to metals, not afraid of acid and alkali corrosion, it does not corrode itself, and can effectively maintain prestressed tendons from corrosion. Many prestressed structures are subject to severe external influences, such as deicing salt or salt water. When the post-tensioning member is broken or fails due to the collapse of the waterproof layer, the leakage of micro cracks, and the drainage equipment, the prestressed tendons may be corroded.

According to the shape, it can be divided into two types: plastic circular corrugated pipe and plastic flat corrugated pipe. Different shapes of plastic corrugated pipe have different inner diameter specifications.

Circular corrugated pipe can be divided into the following specifications according to their inner diameter: Φ45, Φ50, Φ55, Φ60, Φ65, Φ70, Φ75, Φ80, Φ85, Φ90, Φ95, Φ100, Φ110, Φ120, Φ130

Flat plastic corrugated pipe are divided according to their inner diameter size (long axis * short axis): 50 * 19, 60 * 22, 70 * 22, 90 * 25;

The unit of the above value is millimeter (mm), and the error is ± 0.02mm.

The details can be processed and produced according to the drawings provided by the customer.


The production process of plastic corrugated pipe manufacturers:

The raw material supply is first transferred to the extruder for melt extrusion to the regular cooling of the mold of the regular size, and then to the cooling of the water tank, and then in the shaping and then to the traction machine to transport the tube blank, and finally to the cutting or winding This is the basic job of plastic corrugated pipe manufacturers.

Installation of plastic corrugated pipe:

(1) Before the pipe layout device, the plastic corrugated pipe should be staked out according to the pipeline coordinates specified in the plan, and positioning steel bars should be set. The corrugated pipe should be fixed on the positioning steel bars and tied with iron wires. The curve pipeline should be properly encrypted.

(2) The connection between the plastic corrugated pipe and the anchor should be tightly sealed with waterproof tape, and the screw hole on the grouting hole on the anchor should also be sealed with waterproof tape to prevent the cement slurry from entering the pipeline or Screw hole.

(3) The connection between the plastic corrugated pipes can be selected by the connection sleeve clamp butt, or the hot-melt welded pipe hole can be used for welding. The set temperature of the pipe welder is 250 ° C. Power 800W, heating time 30-65 8.

(4) When the length of the prestressed beam is greater than 50 m, it must be added every 50 rn. Plastic clamps with survey holes should be arranged.

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