On 23 September 2026, Zhejiang Sanli dispatched a full truckload of PE-Xa cross-linked polyethylene underfloor heating pipe to a customer in Uzbekistan. Specification 16×2.0 mm, produced by peroxide cross-linking (Engel process) with a degree of cross-linking ≥70%. The pipe conforms to ISO 15875 and GB/T 18992, is designed for hot-water distribution in underfloor radiant heating systems, and carries a design service life of 50 years.
Shipment at a glance
| Ship date | September 23, 2026 |
|---|---|
| Destination | Uzbekistan |
| Product | PE-Xa cross-linked polyethylene underfloor heating pipe |
| Specification | 16 × 2.0 mm (OD × wall thickness) |
| Cross-linking process | Peroxide cross-linking (Engel process) |
| Degree of cross-linking | ≥ 70% |
| Applicable standards | ISO 15875, GB/T 18992 |
| Application | Underfloor radiant heating · hot-water distribution |
| Design service life | 50 years |
| Shipping mode | Full truckload |
About PE-Xa underfloor heating pipe
PE-Xa is the highest-crosslinked type of cross-linked polyethylene (PE-X). It is produced by initiating a free-radical reaction with peroxides under high temperature and pressure, forming a three-dimensional network structure across the polyethylene molecular chains. This structure delivers three core advantages: flexibility — the pipe can be bent and laid with fewer joints; thermal memory — it returns to its original shape when heated, making on-site forming easy; and creep resistance and ageing stability — dimensional stability under long-term high temperature and pressure. PE-Xa underfloor heating pipe is widely used in residential and commercial underfloor radiant heating systems, and can also serve radiator connections and cold-water supply.
Highlight: peroxide cross-linking · degree of cross-linking ≥70%
The PE-Xa underfloor heating pipe in this shipment to Uzbekistan is produced by the peroxide cross-linking process (also known as the Engel process), which forms a dense three-dimensional network across the polyethylene molecular chains under high temperature and pressure, achieving a degree of cross-linking above 70%. A high degree of cross-linking means a higher temperature rating (continuous 70°C, short-term 95°C), greater pressure resistance and lower creep rate. Combined with its inherent thermal-memory effect — the pipe returns to its original shape when heated after bending — on-site installation is more flexible, especially suited to the large-area coil laying required for underfloor heating in Central Asia. The pipe conforms to ISO 15875 and GB/T 18992 and carries a design service life of 50 years.
Sanli one-stop supply chain
Besides PE-Xa underfloor heating pipe, Sanli also supplies PEX-AL-PEX multilayer pipe, PE-RT underfloor heating pipe, PP-R pipe and fittings, brass fittings, manifolds, mixing units, circulation pumps, thermostatic valves and the full range of underfloor heating system products. Visit our one-stop supply chain platform to see the complete product structure and supply capability.
Sanli's delivery capability
Zhejiang Sanli Pipe Technology Co., Ltd. is based in Zhuji, Zhejiang, with 20 production lines covering the full range of underfloor heating system products. The full product line holds EAC certification, OEM and private-label manufacturing are supported (MOQ from about 10,000 metres), and products are exported to markets across Europe, Central Asia and Southeast Asia.
Bottom line: for underfloor heating projects in Central Asia and worldwide, Sanli provides a one-stop export solution covering PE-Xa, PE-RT and PEX-AL-PEX pipe — EAC certification across the full product line, OEM support, full-truckload dispatch.
Sourcing for an export project?
If you are buying underfloor heating pipe or fittings for a Central Asian or overseas project, send us the specification, quantity and destination port, and we will return a quotation and lead-time plan within 24 hours.
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