HDPE PUF pipes
HDPE PUF pipe is a single pipeline element, consisting of HDPE pipes, polyurethane foam insulation and protective PE or ZP sheaths. The finished product represents a polyethylene pipe that is reliably protected by a heat-insulating layer. The outer sheaths made of polyethylene or galvanized steel performs a waterproofing function, extends the service life, and protects against mechanical damage. The listed properties make it possible to use HDPE pipes in polyurethane foam insulation in various fields and different climatic conditions, but these products are used for water supplying on a more frequent basis. The sheaths material – zinc or polyethylene – is selected based on the pipeline installation location..
The main difference between the application of polyurethane foam insulation and the solid insulating materials is the water-absorbing property and durability of the resulting structure, as well as the minimum thermal conductivity coefficient.
Advantages of the HDPE PUF pipes:
- Lightweight ensuring easy transportation and handling on the construction site;
- High installation speed. No welding is required when assembling the pipeline;
- Resistance to corrosive environment and external impacts.
Production involves several stages:
- Raw materials received for production undergo primary quality control.
- Product parts (pipe, sheaths, components, centralizers) are checked for compliance with GOST.
- Pipes and fittings are pre-treated.
- Centering elements are also subject to preparation.
- The prepared pipe complete with centering elements is inserted into the sheaths.
- Installation of filling plugs onto the product ends.
- The cavity formed between the pipes is filled with a liquid polymer, which, after curing, forms a heat-insulating layer.
At the end of the work flow, we obtain a pipe that consists of:
- Parent HDPE pipe for transporting the working medium;
- Cured polyurethane foam insulation layer;
- Outer protective layer made of galvanized steel or larger diameter polyethylene pipe.
All stages of quality control of our products are compliant with the requirements of regulatory documents, entered in the product technical datasheet and duplicated on labels and tags.
Then, after passing the tests, the finished pipe undergoes mandatory marking and is transferred to the warehouse.
You can get a price list for the HDPE PUF pipes or place an order, and we will guide you in terms of production and help you arrange a delivery.
Q&A
- Certificate of quality for the batch of products in original..
- Complete list of certificates, including quality certificates, on the materials, feedstocks and components used to manufacture a specific batch of products.
- Report on all the performed tests.
- Certificate of compliance with GOST 30732-2020.
- CMR.
- Consignment note.
- VAT invoice.
- Upon the customer’s request, we can provide the Universal transfer document (UTD).
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