Tolerances, dimensions and sectional properties. The ductwork contractor shall provide documented evidence of the calculations used to arrive at the allowable loss for the section to be tested and the client, or his agent, shall witness and sign the results of the test. Curtain fire dampers generally provide an E classification to BS ENas they do not have the cold leakage characteristics to achieve the ES classification. The CPR builds on the success of the CPD, by allowing construction products that have been assessed standarv harmonised standards to be legally placed on the market anywhere in the European Economic Area. The design of swimming pool ductwork systems and their supports is the responsibility of the system designer and not the ductwork contractor. The implementation of an Environmental Management System EMS can assist a business in managing and meeting its increasingly heavy burden of responsibility for the future protection of the global environment. Care shall be taken to ensure that the integrity of any vapour seal is maintained and reference in this respect must be made to both BS and BS It may be necessary to provide additional protective sheeting to stored ductwork to ensure the factory applied protection and cleanliness requirements remain in place. Some proprietary systems of support for vapour sealed ducts are available. DW Specification for Sheet Metal Ductwork – The BESA Aerodynamic testing of dampers and valves. The choice between the available methods of fixing will depend on the type of building structure and on any limitations imposed by the structural design.
Low, medium and high has gained national and international recognition as the industry standard. Air leakage of the assembled unit shall be to HVCA Standard DW/ Duct Work Construction to DW/ DW/ is recognised throughout the UK as the Standard Specification for ductwork manufacture and installation. It does not store any personal data.(a) DW/ Specification for sheet metal ductwork (low-medium- and high pressure). The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.
For more information about Duct construction and DW/144 please contact us on 08. Pro-Duct Clean Ltd routinely work to ensure that our installations meet meet the standards in DW/144.
DW144 emphasises the role of the ductwork contractor in the design process with the potential benefit of simplifying the end construction process.įor further information, take a look at the article New DW144 will galvanise ductwork industry which appeared in the B&ES BOOK 2014 by Bob Lane, chairman of the B&ES Ductwork Group. Perhaps most significantly, the standard further embraces the use of digital construction techniques including Building Information Modelling (BIM) and CAD CAM. The 2013 revisions go some way towards clarifying a number of areas of potential ambiguity that have existed to date, as well as having been tested to meet the relevant European standards for the first time. An essential reference document for installers specifiers and engineers. This specification recognises developments in technology and the impact of the computer age with particular reference to CAD CAM procedures and techniques. It came into being in 1998 when it replaced the former DW/142. DW/144 is recognised throughout the UK as the Standard Specification for ductwork manufacture and installation.
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