Introduction
of uPVC Pipes:
Polyvinyl-Chloride (PVC) is a plastic product which has matchless
versatility. It effectively replaces wood, paper and metal in several applications. As such plastic
pipes have been progressively replacing conventional pipes like G.I., Cast Iron,
Asbestos Cement or Stone-ware for a number of important and uses. Among the
various types of plastic pipes which are
commonly used for such applications PVC pipes are the most widely used
all over the world on account of their most favourable balance of
properties.
PVC pipes are light in weight, rates for use under pressure, easy to
install, low on maintenance cost, and have low frictional losses.
Rigid PVC pipes have wide variety of uses in fields like
city/town/rural water
supply scheme, spray irrigation, deep tube well schemes and land
drainage
schemes. PVC slotted
and corrugated pipes are ideal systems for drainages of water from land where
water logging is inevitable.
Raw
Material:
The main raw material required is compounded PVC resin.
Other compounding materials like plasticizers, stabilizers, lubricants and
fillers are also used in the manufacturing of uPVC Pipe.
Process:
The various process steps involved in the manufacture of rigid PVC pipes
are as follows:
Blending, Extrusion, Sizing, Traction & Cutting
Blending:- Production begins with exacting blend formulations of the best compounds
available, ensuring that we consistently achieve our desired physical
properties. High quality Plastisizers, Satabilizers, Lubricants and Fillers are blend in a high speed machine to improve processibility and improve the endure
stability, accoriding to the national and internation standards.
Extrusion:- The compound
resin is fed to the twin screw extruders where the inserts and die body for the required
pipe diameter are fitted. The PVC compounds are then passed through a heated chamber and they get
melted under the compression of the screw and temperature of the barrel. The
marking on the pipe is done at the time of extrusion. Twin screw extruder have a wide-ranging capability of
standard 1" to 12" diameters and custom extrusions for the production
of pipe. Constant supervision and regular quality testing ensure consistent
quality throughout each production run.
Sizing:- The pipes coming out from the extruder is cooled in the sizing
operation. There are basically two types of sizing used for manufacturing of pipes. They are (i) Pressure sizing & (ii) Vacuum sizing.
Traction:- The next operation needed after sizing is traction. The tube
traction unit is required for continuous haulage of the pipes being extruded by
the extruder.
Cutting:- The last operation needed is cutting. There are basically two
cutting techniques for rigid PVC pipes i.e. manual and automatic. The pipes are now ready for dispatching.
Application of uPVC
Pipes:
-
Pressurized
water distribution networks.
- Underground
water distribution networks.
- Underground
drainage networks.
- Drainage
Installations between manholes.
- Irrigation
networks.
- Cold water
plumbing services.
- Drainage
installation (industrial & Domestic).
- Mining.
- Factory
Supply Lines.
- Chemical
Plant Installations.
- Electrical
Conduits.
- Tube well
casing and strainer.
-
Paper mill
installation alum and pulp carrying.
- Vent and
ducting for power and communication cables.
Types of Everest uPVC
Pipes:
Everest Plastics produces pipes on customer demand and requirement
depending on the purpose of usage.
Usually the following types of pipes can provide on demand.
- Standard BS
3505 & PS 3051 uPVC pipes.
- ISO Standards
uPVC Pipes.
- Medium Pressure
uPVC Pipes.
- Sewerage uPVC
Pipes.
- SDR
uPVC Pipes.
- Pipes in
millimeter size.
- Pipes in
inches size.
- White and
Grey Color pipes.
|