MDPE Pipes for Water Distribution & House Service Connection
Features and Specifications
Manufactured from HD/MD PE-80 and PE-100 grade blue compounded material, having WRAS certification, specially made for making pipes conveying potable water supply - recommended world over for distribution of potable water under sanitary conditions hence very safe for potable water distribution network and house service connection.
Very smooth inner surface ensures no scaling and choking.
Has less friction loss and gives better flow at lower heads.
Easy to transport and store as the pipes available in 100, 200 and 300 metre coils.
No wastage of pipe as it can be cut to requirement at site.
Less number of joint as the pipe is flexible.
100% leak-proof saving enormous quantity of water wasted in conventional piping system due to corroded leaky joints.
Easy to repair as the pipes are flexible and joiners are with union type joints.
Easy tapping with specialty tapping joints.
Tools-off installation possible with precision made fittings.
VIJAYA POLYMERS Manufacture MDPE - HSC pipes with PE -80 grade raw material of prime quality from internationally renowned suppliers. PE - 80 grade Polyethylene is a versatile and Internationally accepted material for even Gas distribution piping systems.
Applications
Potable Water Distribution Network & Rising Main.
House Service Connections.
Technical Specifications
Range
Φ 20(0.5") to 500 mm (20").
Pressure rating 2.5 to 25 kgf/cm²
Standards
ISO-4427
Length
Available in straight lengths of 6/12 meters for all sizes and in coils upto 140 mm OD size.
Material Grades
PE - 80 & PE100(Blue Colour)
PE - 80 & PE 100 (Black With Blue Stripes)
Material Properties
Property
Method of Test
Units
Standard Values
Thermal Stability
ISO/TR 10837
Minutes
20 Min
MRS at 20 C
ISO 1133
MPa
8
Hydrostatic Design Stress
ISO/TR 9080
MPa
6.3
Elognation at break after weathering
ISO 6259-1 & 3
%
350
Melt flow rate
ISO 1133
Gms/10 minutes
+30% from the value specified by raw material manufacturer
Longitudinal reversion
ISO 2505-1
%
< 3
Distribution Pipe
It is recommended that Water Utilities providing protected drinking water, to use HD/MD PE-80 and PE-100 grade pipes conforming to ISO 4427/1996 to make the system totally leak-proof and corrosion resistance. It is a well-known fact that the soil in which the pipes are buried, are of corrosive nature, which triggers outside corrosion of the conventional pipes. Added to this, the leakage of electricity from the underground cables as well as spillage of chemicals and contamination of subsoil with leaky sewerage and drainage pipelines add to the galvanic and chemical corrosion of conventional pipes. Dissolved oxygen and chlorine in the treated water accelerate the inside corrosion.
VIJAYA POLYMERS HD/MD Polyethylene PE-80 grade pipes conforming to ISO 4427 as well as IS 4984 are available up to 500mm Diameter in all pressure classes as per the standard. Installation of these pipes is easy and the joints are butt-welded joints, which are stronger than the pipe. Tapping for the house service connection is also made very easy with tapping tees and saddles and is totally leak-proof.
Total distribution and house service connection with VIJAYA HD/MD polyethylene piping system is not only the way to provide the society with safe drinking water but also to save precious drinking water from UFW.
Safe Drinking Water
Drinking water is an essential commodity to the society, being supplied to all sections of the society, which includes healthy, aged and sick. The importance of safe drinking water is vital and the quality of water must not be compromised in the short or the long term. The quality of water does not just mean the toxicity of contaminants and their direct impact on health, but also includes the way in which the consumer gets the water.
Influence of Materials
The influence of materials and substances in contact with drinking water should not be underestimated. Leaching of soluble compounds can produce a direct effect on the taste, turbidity and colour of the water. Many materials can support the growth of microorganisms, which can cause deterioration in the microbiological quality of the water. Metabolic products produced as a result of microbial growth can cause bad tastes and the development of slimes and flakes of microbial growth are also capable of producing bad tastes and odours. In some cases, the physical degradation of a product in service can occur as a result of microorganism growth.
Selection of Material for Pipe
The pipe material selected for conveying & distributing potable water should ensure the following essential norms in a water supply system
It should not give taste to water.
It should not change the appearance of the water.
It should not allow growth of microorganisms in the water in contact with the materials or on the surface of the material.
It should not release substances in to the water that may be concern to public health.
It should not release any material in to the water.
These conditions are in accordance with BS 6920 - Leaching tests for nonmetallic products for use in contact with potable water.