RTP Pipe Systems

RTP Pipe Systems

RTP pipe production, from liner to coiled composite pipe

BENK supplies modular production equipment for spoolable reinforced thermoplastic pipe. The line can combine liner extrusion, reinforcement winding, heating and activation, outer jacket extrusion, cooling, haul-off, inspection and coiling.

3D layout of a BENK RTP pipe production line
Spoolable constructionLong continuous pipe for reduced field joints and faster installation.
Three functional layersThermoplastic liner, load-bearing reinforcement and protective jacket.
Material flexibilityConfigurable for PE, PE-RT, PA and other qualified thermoplastic systems.
Modular equipmentSingle modules or a complete line, matched to the pipe design and output.

What is an RTP pipe?

A reinforced thermoplastic pipe is a composite pressure pipe with a continuous thermoplastic liner, one or more reinforcement layers and a thermoplastic outer jacket. The liner contains the medium, the reinforcement carries hoop and axial loads, and the jacket protects the reinforcement from abrasion, moisture and external damage.

1. Inner liner

A thermoplastic layer selected for the fluid, temperature and pressure duty. It provides the primary fluid barrier and a smooth bore.

2. Reinforcement

Glass fibre, aramid, polyester or steel strip can be applied in a balanced helical pattern. The layer count and angle follow the pipe design.

3. Outer jacket

A thermoplastic jacket encapsulates the reinforcement and helps protect the pipe during handling, installation and service.

Important distinction: RTP is not the same as GRP/FRP pipe. RTP uses thermoplastic materials and spoolable construction; GRP/FRP is normally thermoset and rigid. The production line and qualification requirements are different.

Where RTP pipe is used

RTP is selected where corrosion resistance, long continuous lengths and fast installation matter. Final suitability always depends on the liner material, reinforcement system, pressure class, temperature and the applicable project specification.

Oil and gas flowlinesGathering, transfer and injection lines where corrosion and joint count are critical.
Water transportProduced water, disposal, irrigation and infrastructure duties with suitable material selection.
Hydrogen and CO₂ projectsEmerging duties require specific permeation, pressure and qualification review; not every RTP design is automatically suitable.
Mining and industrial linesSlurry, chemical and utility lines where abrasion and corrosion resistance are important.
Temporary and remote linesProjects that benefit from coiled pipe, low weight and reduced installation equipment.
Replacement projectsCorroded steel or joint-heavy pipelines where a qualified composite alternative is acceptable.

Production route

01

Liner extrusion
Extrude and size the inner thermoplastic pipe.
02

Reinforcement winding
Apply tape or strip in a controlled helical pattern.
03

Heating and bonding
Bring the surfaces to the required process temperature.
04

Jacket extrusion
Apply and size the outer protective layer.
05

Cooling and coiling
Cool, inspect, cut and wind the finished pipe.

BENK equipment modules

A complete RTP line is built from modules that must match each other in speed, tension, temperature and control. Explore the main equipment groups below.

What we need to size the line

  • Pipe inside diameter and outside diameter range
  • Design pressure and safety factor
  • Operating temperature and fluid
  • Liner, reinforcement and jacket materials
  • Reinforcement layer count and tape width
  • Target output and line speed
  • Coil inner diameter, width and weight
  • Available workshop length and power supply
  • Required inspection and traceability scope
  • Jointing or fitting system used downstream
  • Applicable pipe qualification standard
  • Required commissioning and training support

Scope note: BENK supplies production equipment. Final pipe design, fitting qualification and project certification remain the responsibility of the pipe manufacturer and the project owner. Performance figures are confirmed in the technical proposal.

Build the right RTP line for your pipe family

Send the pipe size matrix, pressure class, materials and target output. We will define the module configuration and confirm the equipment scope.

Chat with usWhatsApp