
Five series · 14 SPUs · 43 SKUs — from standard PE-RT to premium copper-plastic: material, oxygen barrier and structure on one page.
The five series expand into 14 SPUs; open each SPU to see the active sizes (SKUs). Size tags = OD × wall thickness (mm).
PE-RT (heat-resistant polyethylene) base pipe for underfloor heating: flexible, fusion-weldable and the cost-effective choice for heating projects.

Single-layer PE-RT structure — the workhorse and mainstream choice for standard heating loops.
Cross-linked polyethylene pipe: better temperature and creep resistance than PE-RT, suited to high-temperature hot water and long-life design loops; a / b / c denote the cross-linking method, not a grade.

Uniform cross-linking and good flexibility for complex coil routing.
Co-extruded double layer with a scratch-resistant surface for tough job sites.
Mature silane cross-linking with stable stiffness and pressure performance.
Electron-beam cross-linking leaves no chemical residue in production.
Co-extruded EVOH oxygen barrier blocks oxygen ingress and protects boilers, manifolds and other metal parts — for closed heating systems with higher anti-corrosion requirements.

PE-RT base + EVOH barrier: cost-effective oxygen protection for closed systems.
Peroxide-cross-linked base + EVOH: temperature resistance and barrier in one.
Silane-cross-linked base + EVOH: a mature oxygen-barrier choice.
Composite structure with an intermediate aluminum layer (PEX-AL-PEX / PEX-AL-PE-RT): low linear expansion, excellent dimensional stability, straight-wall routing, and no spring-back after tool bending.

Classic lap-welded aluminum layer — multilayer pipe for heating and water supply.
Butt-welded aluminum layer with higher seam strength, including dn26.
Factory-applied insulation layer saves on-site insulation for direct burial and wall routing.
PEX-a cross-linked inner layer with a PE-RT outer: balanced temperature resistance and cost.
Mature combination: silane-cross-linked PEX-b inner with PE-RT outer.
Premium copper-plastic composite pipe: pure copper inner layer + plastic-coated outer, combining the strength and bacteriostatic property of copper with the corrosion resistance and easy bending of plastic — positioned for high-end residential and exposed heating loops.

Copper core + plastic coating: copper strength with plastic corrosion resistance and workability.
Three capabilities beyond the standard range.

Factory-applied insulation cotton (red/blue duo available): uncoil and bury or route on walls directly, skipping on-site insulation — ideal for severe-cold regions.

OD, wall thickness, colour, coil length, packing and logo all customizable; new material combinations and aluminum layer thickness are negotiable too.

Nine supply lines — manifolds, valves, fittings, controls and more — matched on one order with a single accountable interface.
Pick series, size and quantity in the online inquiry form and get a quote with packing plan within 24 hours; or download the Excel product list and parameter sheet for internal evaluation first.
Wired to our quote knowledge base for instant size & quantity estimates
Download Excel product list & parameter sheet ↓ Inquire by emailQuoting basis: calculated by specification, quantity and trade terms; reply within 24 hours. Unit prices are not published on the page.
Three dimensions to understand product differences and grades.
Role:The root factor behind fusion weldability, flexibility, pressure resistance and service life — and it determines the connection system (press, push-fit or fusion).
Role:Oxygen permeation is the main cause of metal-part corrosion and shortened life of manifolds and boilers; whether and how a pipe blocks oxygen directly determines its grade.
Role:Single-layer pipe is flexible to install but expands more linearly; multilayer composite pipe is dimensionally stable, supports straight-wall routing and does not spring back after tool bending.
Email sanlipipe@163.com · WhatsApp +86 150 6880 2744 · video factory audit available