PVC DWC Pipe

PVC Double Walled Corrugated Pipe Technology at work for you

PVC DWC Features

PVC

Polyvinyl chloride (also called vinyl or simply PVC) is a versatile thermoplastic material that is used in the production of hundreds of products that consumers encounter in everyday Life and many more that are encountered less frequently but are nevertheless very important in construction, electronics, healthcare, and other applications.

PVC finds widespread use in above applications because of its low cost and desirable physical and mechanical properties. It is fabricated efficiently into a very wide range of both rigid and flexible products. It is also worth noticing here that inherently PVC is flame resistant.

Substitutes for PVC materials are available, but often the alternative materials and processes are not as efficient or substitution costs are high, hence, PVC become the most widely consumed thermoplastic material.

In view of the above mentioned qualities of PVC, Adam Jee Plastic Industries (Pvt) Ltd., a leading local manufacturer had started manufacturing of Solid\all PVC pipes in l986 and now has taken the lead again and started the production of Double-Wall Corrugated (DWC) PVC Pipes on Imported state of the art plant for the first time in Pakistan.

Applications of Adam Jee’s PVC DWC Pipe

Adam Jee’s PVC DWC Pipe System is used in an enormous variety of applications and competes with a diverse range of substitute materials. For example, DWC PVC pipe holds a commanding share in large diameter non pressure water and sanitary sewer pipe because of its low initial cost, ease of installation due to its remarkable low weight, long and reliable service life, and its low replacement and repair cost.

MAJOR APPLICATIONS

Sanitary sewers
Storm sewers
Drains
Venting pipe
Duding
Conduit & other
Non-pressure applications

PVC DWC PIPE CAN REPLACE

Concrete
Asbestos
Clay
Steel & also
Solid Wall PVC pipe

WHAT MAKES IT A PREFERRED MATERIAL?

Sanitary Sewers, Storm Sewers, Drains, Vent Piping, Duding and Conduit generally rely on gravity flow or do not operate under internal pressure. Their design is governed by external earth and traffic loadings. PVC DWC pipes provide an excellent combination of stiffness and strain capacity that have made DWC PVC pipe the preferred pipe for these applications.

Benefits of PVC DWC Pipr Technology

Adam Jee PVC DWC Pipe Systems offer many advantages that make double-wall pipe a practical and economical alternate to conventional solid-wall pipe.

MATERIALSAVING

MATERIAL SAVING

The OWC PVC pipe offers exceptional material savings of up to 50% as compared to conventional sold wall PVC pipes.

HIGH PRODUCTION SPEED

Due to low weight per meter of PVC OWC pipe the production speed is relatively higher than the smooth sold wall PVC pipes.

LIGHT WEIGHT

Light weight means that a pipe of the same diameter and the same ring stiffness can be produced with up to 50% less weight than a comparable smooth plastic pipe. The PVC structure of the DWC PVC pipe wall make such a saving possible.

EASYHANDLING

EASY HANDLING

Due to lightweight DWC PVC pipe, particularly large sized pipe is easy to handle. For comparable pipe made steel, concrete and stoneware, head equipment is necessary at the construction site. However, DWC PVC pipe can nearly always be moved by hand or light equipment.

RESISTANCE TO CORROSION

Waste water becomes mom and mom aggressive and attacking traditional pipe systems such as concrete pipes. COW pipes made up of PVC offer a higher resistance to the aggressive substances.

HIGH COMPRESSION STRENGTH

The PVC DWC pipe’s exterior structured wall (corrugation) which has the main share in ensuring very good mechanical performances and simultaneously lowering of the specific weight of the pipe.

EXCELLENT HYDRAULIC PROPERTIES

The PVC OWC pipe’s interior smooth wall ensures good hydraulic (flow) properties as compare to other competing material.

HIGH RISING STIFFNESS

A DWC PVC pipe has much higher ring stiffness than a smooth pipe with comparable weight per meter.

EXCEPTIONAL ABRASION RESISTANCE

PVC DWC pipe has high resistance to abrasion than most of the other piping materials.

OPTIMAL FLEXIBILITY

Besides high ring stiffness PVC DWC pipe has also optimal flexibility. That’s the advantage of the pipe when it is used as sewerage, storm water and drainage pipe. Concrete pipe often cracks as it is not flexible i.e…. it is not capable of compensating pressure by deformation or tectonic movements. Correctly designed DWC pipe made up of PVC resist a deformation rate of 30% which translates into an enormous advantage in regard to tectonics sudden overload.

An outstanding solution for non-pressure applications

Concrete is the major substitute in this application, its cost per foot or meter of pipe may be comparable to DWC PVC pipe, installation costs are much higher, since many more pipe joints are required. Additional costs are imposed by the loss of water due to main breaks and pumping cost. Replacement and repair costs are much higher for concrete than for DWC PVC pipe as well.

RCC PIPE	PVC DWC PIPE

Pipe Property	Concrete Pipe	PVC double Walled Corrugated DWC Pipe
Material Property	Rigid pipe	Flexible pipe
Light Weight	Very heavy to handle, install and transport, therefore special equipment are required	Easy to handle, install and transport, without the use of any special equipment
Structural Property	When bearing external loaded formation could be caused	Moving connection, allowing deformation and moving that won’t damage structure under external load
Jointing way	Plain joint, socketing spigot jointing end sealed by cement mortar	Elastomeric seal ring
Water Tightness	Poor tightness, Lead to leak at the joints causing second pollution to the environment	Good connection tightness, no leakage, no infiltration of groundwater
Installation Features	High rigidity, high requirements for foundation laying, not easy to handle bending position, and not easy to connect other pipe, weight need some installation tools and auxiliary machines	Good flexibility, low requirement for foundation laying, no season Limit and temperature Limit for installation, good bending property, Light weight, easy installation without machines
Field Handling	Poor safety, lead to damage, complicated installation, not easy to operate closed water test, big wasting	Lightweight, high safety, not easy to break during handling easy operation for closed water test, low wasting
Working Features	Low safety under buried installation, need thorough change when repair, heavy workload	High safety under buried installation, can repair easily, easy operation
Life Time	3 – 10 years(subject to quality)	70 + years
General: PVC DWC pipe is an ideal substitute product for concrete pipes has superior functional properties comparing with concrete pipe.

Capability of Adam Jee to produce PVC DWC Pipe

Initially Adam Jee DWC PVC Pipe System is capable of producing double-wall pipes from outer-diameter 110 to 160 mm, as per prEn 13476-I standard that is followed throughout the world mostly under the general title

Plastic piping system for non-pressure underground drained and sewerage – Structured-waif piping systems of uncriticised polyvinyl chloride) (PVC-U)

Adam Jee has also plan to enhance the existing manufacturing facility of DWC PVC Pipe higher than 160 mm very men once its importance establishes into the local market of Pakistan.

Quality Control Facility for PVC DWC Pipe

Quality CONTROL
Adam Jee has also enhanced the capability of quality control lab, in which Quality Control Testing is routinely performed on samples, as DWC PVC pipes are manufactured, to ensure that proper production procedures and controls are consistently implemented as required to yield quality product which comply with specifications laid down by the relevant standard.
QUALITY ASSURANCE
As a double check Quality Assurance is also being done at the completion of manufacturing process and before delivering the product to the end users to ensure that properties and qualities evaluated in DWC PVC pipe consistently satisfying the requirements of applicable specifications.

PVC DWC Pipe Technology

Polyvinyl Chloride Unplasticized (PVC-U) Double Wall corrugated (DWC) pipe is featured by two layers, inner smooth wall and outer corrugated.

Exterior wall Advantages

It’s unique / scientific exterior wall design insures;

An optimal flexibility – rigidity balance
Stability towards the soil in
Underground sewer systems
It allows a slight curving etc.

Hollow space advantages

At the same time, the pipe’s specific weight is significantly decreased compared to conventional systems due to the hollow space present between the two layers, offering supplementary advantages like;

Handling
Storage
Installation

Interior Wall Advantages

LOW HEAO LOSS:
Because of mirror-smooth inside surface, PVC DWC pipes have minimum flow head loss.
NO SCALING:
There is also no build-up of inside deposits in PVC DWC pipes, a particular advantage in the construction of sewerage system.

Disadvantages of other Piping Systems

Huge HEAOLOSS:
Because of rough inside surface huge flow head loss.
EXENSIVE SCALING:
There is build-up of inside deposits in other piping system, a particular disadvantage in reconstructions sewerage system.

Characteristics	DWC PVC-U PIPE	Unit
Modulus of elasticity	≥ 3000	Mpa
Average density	= 1400	Kg/m3
Average coefficient of linear thermal expansion	= 0.08	mm/mK
Thermal conductivity	= 0.1	WK1 m1
Surface resistance	> 1012	Ω