Thermoplastic Composite Pipe Advantages


The uniqueness and benefits of thermoplastic composite pipe (TCP) makes on oil gas operation and subsea infrastructure, It also benefit water transportation field to replace steel reinforced, and other related reinforced composite pipe for more economic and environmental purpose.

However, since fiberglass TCP pipe is different from steel reinforced composite pipe and flexible composite pipe, In previous article, we have distinguished the different between thermoplastic composite pipe (TCP) and reinforced thermoplastic composite pipe (RTP). In this series article, we highlight and give brief experience sharing about raw material savings between TCP pipe and other type of RTP or PE pipes.

High pressure resistance: The maximum pressure resistance of the TCP system is up to 60 MPa, more than 40 times of plastic pipes.

High-temperature resistance: The maximum TCP pipe operating temperature of the system is 130℃, by using PERT-1 or PERT-2 for inner layer, which is more than 60℃ higher than general plastic pipes.

Long lifetime: 6 times of metal pipes, 2 times of plastic pipes.

Thermoplastic composite pipe corrosion resistance: Non-corrosive and environmental.

Wall thickness: The wall thickness is 1/4 of plastic pipes, improving 30% flow rate.

Fiberglass TCP Lightweight: 40% lighter than plastic pipes, 30% lighter than steel wire reinforced composite pipe.

Strong joints: Double-layer glass fiber superposition in joints, hot-melt socket, never leak.

Low cost: 40% lower than plastic pipes.

The following table will provide some thoughts of TCP raw material savings. The calculation is based on Chinese market price, the prices may variable based on market and region. Let us use :

Fiberglass tape history price in China – 25,000 RMB/ton ( 3524.25 USD/ton)

PE price – 7500 RMB/ ton (1057.27 USD/ton)

Exchange rate 1: 7.09 RMB/USD

DN

SRTP (Steel Reinforced)

CFTCP – Ultra

  Thickness Pipe Weight Pipe Cost Thickness TCP Pressure TCP Weight TCP Costs Cost Savings %
  mm kg/m USD/m mm Mpa kg/m USD/m USD/m
75 6 1.35 2.51 5.6 2.27 1.43 2.15 -14.38%
90 6.5 1.82 3.31 6 2.25 1.84 2.83 -14.63%
110 7.8 2.61 4.8 7.4 2.07 2.76 4.15 -13.58%
160 10 5.2 9.19 8.5 2.16 4.65 7.54 -17.94%

The following table and chart  Banline TCP Pipe burst pressure test.  The sample dimension is :

Diameter : DN 110

Working Pressure : 1.6 Mpa

Overall  Thickness : 0.7 mm

Test Serial Number 20200928 Test Equipment  
Test Standard GB/T 32439 – 2015 Test Medium Water
Sample Name Banline Testing Nominal Diameter (mm) 110
Sample Type Fiberglass Thermoplastic Composite Pipe Avg. OD (mm) 110
Diameter  110 Min Wall Thickness (mm) 0.7
Others:   Circumferential Stress  
Pressure Rising Time (MMM:SS) 010:00 Testing Begin Time 2020-09-28 AM 08:42:34
Max Setting Pressure (Mpa) 16 Testing Temp.(℃) 0.00
Burst Pressure (Mpa) 7.89 Max Temp. (℃) 0.00
Test Result
Test Serial Max Pressure (Mpa) Operation Time(S) Terminate Reason

7

 

The result shows burst pressure is 7.89 Mpa, 4.93 times than working pressure ( 1.6Mpa).