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1. GOVERNMENT POLYTECHNIC, AMRAVATI
(PLASTIC AND POLYMER ENGG.)
SEMINAR PRESENTATION ON
FIBER REINFORCED PLASTIC PIPES

2. CONTENT
 INTRODUCTION.
 MATERIAL.
 PIPE CONSTRUCTION.
 MANUFACTURING PROCESS.
 PRODUCT RANGE.
 FEATURES & BENEFITS.
 JOINTING TECHNIC.
 APPLICATION.
 CONCLUSION.
 REFERENCES.

3. INTRODUCTION
• FRP pipe is not like a ordinary thermoplastic piping such as
PVC and Polyethylene , those are non reinforced extruded pipes.
• FRP Pipes are manufactured using a combination of three basic
material resin, fiber & sand.
• FRP Pipes can be produced using either the Continuous Filament
Winding (CFW) process or the Centrifugal Casting (CC)
process.
• The use of FRP for large diameter industrial piping is attractive
because handling and corrosion considerations are greatly
improved

4. • Filament wound piping can be used at working temperatures
up to around 300o F with a projected service life of 100
years.
• Both methods produce a FRP pipe that is superior in strength.
• It has good chemical , thermal, and electrical resistance
property as compared to steel pipes.
• It has good fatigue characteristics and easy to machine.

5. o The FRP material is thermally stable (thermosetting material)
whose properties are unaffected by temperature changes once
cured. The basic raw materials comply with the requirements of
ISO standards and are tested prior to use.
o Materials used are as follows:
1. Fiberglass
2. Resin
3. Sand
MATERIAL

6. PIPE CONSTRUCTION
LAYER CONTROL
Internal & External Protective Layer:
The inner and outer layers contain a high concentration of polyester
resin that provides a protective layer that has outstanding resistance
to chemicals, corrosion and abrasion.

7. Barrier Layer:
The Barrier Layer is reinforced polyester resin layer that prevents
penetration of materials into the structural layer of the pipe.
Structural Layers:
The Structural Layers provide hoop strength, axial reinforcement
and structural integrity. This consists of Glass Fibers of different
types and sizes together with thermosetting resins.
Core Layer:
The centre core layer provides strength, reinforcement and
stiffness to the product. This layer contains chopped glass fibers,
sand and resins.

8. MANUFACTURING PROCESS
1) CONTINUOUS FILAMENT WINDING PROCESS
(CFW)2) CENTRIFUGAL CASTING PROCESS (CC)
 CONTINUOUS FILAMENT WINDING PROCESS

9. PRODUCTION PROCESS:-
STRUCTURAL STRENGTH:-
RESINCONTROL:-
CURING:-
Pipes are manufactured by applying raw materials to the outside of a
steel mandrel that rotates and advances under the control of a
Programmable Logic Control system and Computer system
around the circumference to produce a pipe capable of withstanding
high stresses. This process allows the use of continuous reinforcing
fiber filaments that are wound
CFW process has a dual resin delivery system capable of applying
2 different types of resin during the process.
Once the materials have been applied, the laminate is polymerized
and cured by means of applying heat through the mandrel and the
external surface.

10.  CENTRIFUGAL CASTING PROCESS (CC)

11. feeds raw materials into a rotating mould starting from the external
surface of the pipe until the required wall thickness is obtained.
PRODUCTION PROCESS:-
STRUCTURAL STRENGTH:-
Glass fibers in this process are chopped and do not contain
continuous filaments as for CFW process.
RESIN CONTROL:-
The GRP Resin is specially formulated to ensure the GRP materials
do not polymerized during the filling process.
CURING:-
Once the materials have been applied, the rotating speed of the
mould is increased which in turn raises the internal compression
forces.

12. PRODUCT RANGE
Diameter 25 to 4000 mm
Nominal pressure 1 to 100 bar
Stiffness 1250,2500,5000& 10000 pa
Corrosion resistance According resin used
Temperature Up to 120 degree Celsius

13. FEATURE & BENIFITS
• Versatile manufacturing processes:
- Custom sizes, classes & pressure ratings
- Lengths can be varied to suit application
- Fittings can be fabricated to suit
- Spigot / Socket or Flanged connections
- Use of both Continuous Filament Winding and Centrifugally Cast
manufacturing
• Light Weight materials:
- Lower transport costs
- Significant installation & handling savings
• High Stiffness capability:

14. • Corrosion resistant materials:
- Long service life with less maintenance costs
- Suitable for high PH applications
- No need for protective coating or liner time
- Not affected by induced currents or earth leakage
- No Cathodic protection required
• Smooth Internal Bore:
- Low friction loss gives excellent hydraulic performance
- Less Pumping energy required means lower running costs
- Less surface build up hence lower maintenance costs
• Integrated Coupling:
- Seal won’t dislodge or roll during installation
- Prevents root intrusion

15. JOINTING TECHNIQUES
• Joint with elastomeric sealing rings
• Butt and strap joints
• Flanged joints
• Adhesive bonded joints
• Locked joints

16. INDIAN INDUSTRIES
BALAJI FIBER REINFORCE PVT. LTD. VADODARA
MEGHA FIBERGLASS LTD. CHENNAI
CHEMICAL PROCESS PIPING PVT. LTD. GOVANDI
SINAI ENGG .PUNE

17. APPLICATIONS
• Air purification system
• Desalination plant
• Oil and gas production industries
• Food and agricultural industries
• Industrial sewage treatment
• Paper mill industries
• Petrochemical industries
• Power plants
• Trenchless piping
• Micro tunneling
• Well casing

18. CONCLUSION
The demand of Frp pipe is increases. Because of its
benefits such as easy handling, Machining, corrosion resistance, leak
proof joints and long service life as compare to steel & concrete
Pipe. It is excellent for under high pressure and all underground or
underwater
application

19. REFERENCES
www.cloverpipe.com.au
www.amiantit.com
www.superlit.eu
www.balajifiber.com