Harmer SML, the lightweight cast iron drainage system from Alumasc, has an established reputation for offering a total solution for Soil and Waste disposal, using leading edge cast iron technology and boasting a proven track record of more than 30 years’ use throughout Europe.
Harmer SML is the optimum choice for soil and waste pipework, offering many advantages for contractors and end users both in terms of installation and performance. Cast iron is inherently robust and highly resistant to damage while its outstanding dimensional stability and high tensile strength eliminate the need for expansion joints and reduce the amount of fixing bracketry required. It is also non-combustible, offers excellent noise attenuation, tested to BS EN 14366: 2004 and is 100% recyclable.
The pipework comes with the option of two-part ductile couplings or unique stainless steel ‘Duo’ couplings that enable faster fixing and built-in electrical continuity, whilst the fixing positions on one side of the coupling allows ease of fixing in confined spaces. The unique Duomat Fixing Tool enables contractors to reduce installation time for the SML system by 50%.
The Duomat Fixing Tool is unique to the Harmer SML system and is suitable for use with any power drill. The tool enables both of the coupling bolts to be tightened simultaneously to the optimum torque setting of 7Nm-9Nm. Two independent preset clutches ensure the correct torque setting, irrespective of the pipe tolerances. The simple toggle adjustment allows for perfect Allen bit alignment for all couplings from 50mm to 300mm diameter and once fitted, the stainless steel duo coupling is totally secure.
John Whybrow, of Alumasc’s Approved Installer PSI, regularly installs Harmer SML using the Duomat Tool. He comments: “Having installed drainage systems both with and without the Duomat Tool, I can state quite confidently that Duomat installations take around half the time.
“The efficient simultaneous tightening of the Duo coupling system has resulted in impressive time and labour savings on site for a significant number of our installations.”
Harmer SML pipes are available in standard 3m lengths, with diameters of 50mm-400mm plus a comprehensive range of fittings and accessories. The system is BBA Agrément Certified fully compliant with BS EN 877 and is CE Marked to European Standards.