PE Drainage Systems

Introduction

Polyfab Manufacture and supplies all type of HDPE Drainage Plastic Piping Systems for aboveground, underground, and various chemical waste.

Our HDPE division supplies all types and sizes of fittings for drainage piping systems from 32mm to 630mm size range. Higher sizes can be provided with segmented fittings as per customer-specific requirments

Polyfab HDPE plastic piping system for soil and waste discharge is designed as pe the international manufacturing standard of EN 1519.

Inside Buildings

Polyfab PE Drainage pipes and fittings have excellent material properties of HDPE with homogenously welded joints that provide greater installation flexibility with a wide range of connecting options. It is highly recommended to suit the internal building applications for the commercial and industrial segments. It is highly recommended that the high impact or abrasion resistance is required to extend the life of the product as it is on continuous use. Some of the major areas of application area where it is highly recommended are as follows.

1. Hospitals
2. Hotels
3. Malls
4. Schools
5. Multistoried Residential Buidlings

Buried in Ground

Polyfab PE Drainage pipes and fittings have excellent material properties of HDPE with homogenously welded joints that provide greater installation flexibility with a wide range of connecting options. Due to its high impact strength and high flexibility, this material is well suitable for underground draiange applications.

Material

Polyfab Manufactures HDPE Drainage pipes & fittings from PE100 materials grade which is having maximum allowable design stress, high-temperature resistance, and chemical resistance, these properties make it more compact, cost-effective, and the right product for drainage applications, we at polyfab use PE100 material which EN 1519 standard requirements.

Material Properties

Reference Standards

EN 1519

Plastic piping systems for soil and waste discharge (low and high temperature) within the building structure Polyethylene(PE)-Part 1: Specifications for pipes, fittings and the system.

EN 12666

Plastics piping systems for non-pressure underground drainage and sewerage polyethylene (PE) - Part 1: specifications for pipes, fittings and the system

ISO 8770

The international standard for plastic piping systems for soil and waste discharge (low and high temperature) within the building structure Polyethylene (PE) - Part 1: Specifications for pipes, fittings and the system.

ISO 1043-1:1997

Plastics-Symbols-Part 1: Basic polymers and their special charcteristics

ISO 4065:1996

Thermoplastics pipes - Universal wall thickness table

ISO 4427

Plastic Piping System for Polyethylene(PE) pipes and fittings

Characteristics and Advantages of PE Draiange Systems

Conventionally Buried Pipelines

The dimensions of a trench line opening are normally governed by the pipe diameter method of jointing, and site conditions. The normal minimum depth of cover for main should be 900mm from ground level to the crown of the pipe. Trench width should not normally be less than the outside diameter of the pipe plus 250mm ti allow for adequate compaction of side fill unless specialized narrow trenching techniques are used and/or especially free-flowing and easily compacted side materials are employeed.

Considerable savings in the costs of imported backfill, reinstatement, and waste spoil dispoal can be made where needed trench width is minimized. In many instances, it may be acceptable to lay PE pipe directly on the bottom of the trench - especially where the soil is uniform, and there are no large flints, stones, or other large hard objects present. In the rocky ground, thre trench should be cut to a depth in isolation which will allow for the necessary thickness of selected bedding material below the bottom of the pipe. Where the finished top surface will subsequently be trafficked, and spoil from the excavation is unlikely to give the degree of ground stability required

The above requirements generally apply when the PE pipes is buried in the ground that will subsequently be trafficked, with or without a road pavement. The stated side fill and backfill materials are required to give a stable top surface, the PE pipe itself will not be harmed if laid in a much poorer surround provided there are no large sharp stones pressing against it, that are not surrounded by smaller stones.

HDPE Joining Systems - Butt Fusion

Butt welding is a very econmical and reliable joining technique for a wide dimension range. The fusion areas of the pipes and fittings are heated to fusion temperature and joined by means of mechanical pressure for a specific cooling time, without using additional materials. The resultant joint is fully resistant to end loads and has comparable performance under pressure to the pipe itself

The butt welding machines used to weld PE pipes have controls to ensure the welding parameters are strictly adhered to. The following parameters are controlled.

• heater plate temperature
• ovality and alignment
• interface pressure
• bead width
• heat soak time
• changeover time