RTP Pipes | Reinforced Thermoplastic Composite Pipe (Coilable) – CNPS
Coilable Composite Pipe That Kills Corrosion — and the Cost of Installing Steel
Up to 1 km per reel, 70% lighter than steel and 80% fewer leak points: RTP delivers pressure-rated, corrosion-free flowlines with trenchless speed.
Product Overview
RTP pipe — reinforced thermoplastic composite pipe — is a three-layer structure purpose-built for oil, gas and industrial transportation: an HDPE liner, a reinforcement layer of glass fiber, aramid or steel wire, and an outer protective jacket. Every layer is engineered for one job: keeping corrosive media away from metal and keeping installation fast.
The CNPS RTP line is rated for working pressure up to 32 MPa (320 bar) at 23 °C with higher ratings on request, a temperature range of −40 °C to 110 °C including a high-temperature version, and a service life of ≥ 20 years in CO₂/H₂S environments. Rollable lengths reach up to 1 km per reel, the pipe is 70% lighter than similar steel pipe, and the reduced joint count cuts leak points by 80%.
RTP is a system, not just a pipe: flanged or hubbed steel end fittings tie seamlessly into existing steel infrastructure, and liner resins, reinforcement fibers and jacket colors are customized per process conditions.
Why Choose RTP Pipes?
- Steel pipelines corrode internally and externally in CO₂/H₂S and produced-water service
- Welded joints are leak and inspection risks; long tie-ins are slow to install
- Heavy pipe raises transport, crane and support costs across the route
- Corrosion-inhibitor programs add ongoing chemical and operating expense
CNPS Solution: An all-polymer RTP system — HDPE liner, glass/aramid/steel-wire reinforcement and protective jacket — coil-supplied up to 1 km per reel with flanged or hubbed steel terminations, eliminating internal corrosion and most field joints.
- Handles up to 32 MPa internal pressure with no metal fatigue — full hoop strength maintained for 20 years
- No internal rust: non-metallic liner and jacket end inhibitor programs
- Up to 1 km per reel enables trenchless pull-ins and ~70% faster installation
- 80% fewer leak points through fewer joints
- Minimum bend radius 15 × OD for dynamic pulls; as low as 10 × OD static
- Complete system with steel end fittings for direct tie-in to existing lines
- Structure: HDPE liner / glass-fiber, aramid or steel-wire reinforcement / outer jacket
- Sizes: DN50 – DN200 (CNPS line); DN50 – DN800 per referenced catalog data
- Working pressure: up to 32 MPa (320 bar) at 23 °C; higher ratings on request; referenced catalog lists max 25 MPa — Confirm by model
- Temperature: −40 °C to 110 °C (incl. high-temperature version); referenced catalog lists −40 °C to 130 °C — Confirm by model
- Coil length: up to 1 km per reel
- Terminations: steel end fittings, flanged or hubbed; complete systems with matched fittings
- Pressure capacity — Handles 32 MPa internal pressure without metal fatigue, maintaining full hoop strength for 20 years.
- Corrosion defence — Non-metallic liner and jacket eradicate internal rust, ending costly inhibitor programs.
- Fast deployment — Up to 1 km per reel allows trenchless pull-ins and ~70% faster installation.
- Lifecycle savings — Lightweight coils cut transport costs and shrink joint count, lowering leaks and repairs.
- Flexible routing — Minimum 15 × OD bend radius for dynamic pulls, as low as 10 × OD for static placements.
- No inhibitors required — All-polymer fluid path eliminates galvanic and CO₂/H₂S corrosion.
- Fully customizable — Liner resins, reinforcement fibers and jacket colors tailored per process conditions; site-specific coil lengths.
- System completeness — Steel end fittings (flanged or hubbed) tie into existing steel systems; complete RTP systems with matched fittings.
Technical Specifications
| Item | Specification |
| Diameter / Size Range | DN50 – DN200 (CNPS); DN50 – DN800 (referenced catalog) |
| Standard Length | Up to 1 km per reel |
| Connection Type | CNPS: flanged or hubbed steel end fittings; referenced catalog: composite pipe clamp coupling, double-mode crimping, single-mode crimping |
⚙️Applications
- Oil, gas, water and utility lines (DN50–DN200 general service composite line)
- Acidic wells containing H₂S; high-concentration CO₂ transport
- Corrosive CO₂ pipelines in desert service; multiphase flowlines offshore
- 2-inch sweet-service flowlines to 6-inch aramid-reinforced water-injection mains
- Municipal water supply/drainage and central heating (referenced catalog)
- Onshore oilfield water injection, polymer injection, single-well gathering and crude long-distance pipelines (referenced catalog)
🔧Installation / Connection
- Coil-supplied up to 1 km per reel; suitable for trenchless pull-in and open-cut installation
- No pipe support system needed — flexible, coilable construction
- 80% fewer joints means less field jointing and fewer leak points
- Steel end fittings (flanged or hubbed) tie directly into existing steel systems
- Lightweight handling: 70% lighter than similar steel pipe reduces equipment and crew requirements
🎨Project-Based Customization
- Liner resins, reinforcement fibers (glass, aramid, PET/LCP/carbon) and jacket colors tailored to process conditions
- Site-specific coil lengths cut waste and joining
- Pressure and temperature builds per project — confirm ratings with our engineers
- Termination style (flanged or hubbed) matched to existing infrastructure
- Referenced catalog wall-thickness and crimping options available on request
💎Why CNPS
- Solution engineering — RTP systems specified around your media, pressure, route and installation method
- One accountable system — pipe, steel terminations and matched fittings from a single partner
- Trenchless-ready thinking — coil logistics and pull-in plans engineered into the proposal
- Transparent ratings — conflicting catalog data flagged for confirmation rather than silently resolved
Frequently Asked Questions
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