Introduction
CONTENTS
7
Installation
23 23
At both its purpose-built facility in Dubai and on site, training covering the proper installation and use of the range of products is provided to customer’s technicians. Here they are instructed in using best-practice techniques for jointing of the various piping materials, correct installation of fittings and accessories and operation and maintenance of their systems. Following successful completion of such training courses the technicians will become certified installers of those HEPWORTH PME ( LLC ) products covered in the course. The benefits of this training are enormous because incorrectly installed systems will certainly fail prematurely at substantial cost to the owner or operator, particularly on those systems that are installed underground or with difficult access. To complement the range of items manufactured in Dubai, HEPWORTH PME ( LLC ) also represents a select group of international manufacturers who further enhance the scope of supply to accommodate other aspects of water and gas flow management. Encompassing diverse fields such as irrigation to fire-fighting and district cooling to domestic water supply, complete systems and individual components can be sourced from one professional outlet conveniently located to serve the needs of the specifier or contractor. HEPWORTH PME have a licensing and manufacturing agreement with Wavin to produce the pipes in Dubai. The fittings will be supplied from Wavin overseas. The pipes are manufactured to EN 1519 specifications which incorporate a test temperature of 110 o C.
HEPWORTH PME ( LLC ) is the region’s premier manufacturer and supplier of a comprehensive range of high quality plastic pipes, fittings and accessories used for the distribution and transmission of water, wastewater and gas. Established in Dubai for well over three decades and represented by a chain of branch offices throughout the area HEPWORTH PME ( LLC ) are able to satisfy the requirements of the industry professionals from its substantial stock holding of products conforming to the various international standards in common use in the Middle East. The demand for readily available high quality pipes and fittings prompted HEPWORTH PME ( LLC ) to establish a modern manufacturing facility in Dubai back in 1991. Using the latest equipment and techniques the company produces PVC-U, Polyethylene and GRP pipes in a wide range of diameters. Following further investment in 1999 injection moulding machines were introduced to produce PVC-U, polyethylene and polypropylene fittings. In addition to this fabrication of standard, specialized and bespoke fittings using PVC-U, ABS, PPR, polypropylene and polyethylene is undertaken to provide solutions for the discerning water engineer. Being the first company of its kind to achieve BS Kitemarks and ISO 9002 accreditation in the region, they are now designated as an ISO 9001:2000 accredited manufacturer. Quality is therefore paramount and this is reflected by the fact that HEPWORTH PME ( LLC ) holds BS Kitemark licences covering 109 of the locally produced products. We also have FM approval for polyethylene pipe underground fire fighting equipments. Optimum performance and longevity is further assured by the company’s commitment to customer training.
7.1 Design
7.1.1 Fixings - HDPE 7.1.2 Brackets
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- support bracket - clamping bracket - fixed point bracket 7.1.3 Freely suspended pipework
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- temperature differences • cold pipework • warm pipework • hot pipework
7.2 Installation methods
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7.2.1 Flexible installation
- flexible installation with expansion sleeves and couplers - flexible installation with flexible connectors - bracket separations for flexible installation - bracket distribution for flexible installation
7.2.2 Rigid installation (HDPE)
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- brackets and bracket separations for rigid installation
7.2.3 Cast-in pipework
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8
Assembly
8.1 General
31 8.1.1 Pipework in the waste removal system 31 8.1.2 Fixing equipment (brackets) 31 8.1.3 Storage 31 8.1.4 Oval pipe ends 31 8.1.5 Shortening pipes 31
8.2 Brackets
31 31
8.2.2 Joints in HDPE
- butt welding - electro-weld sockets - electrical spigot welding - preparation work - welding procedure - use of non-standard pipe - rubber seals - expansion sockets
9
Situations during construction
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4
5
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Pressure testing
Maintenance
Product list
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