Aalco_Datasheet_St_St_Metric_Tube

Stainless Steel Metric Tube & Fittings Guide abc® Aalco is a registered trademark of Aalco Metals Ltd © Copyright: Aalco Metals Ltd, The Hersham Centre, Hersham Green, Hersham, Surrey KT12 4HP What are Metric Tube & Fittings? ♦ This is a lightweight range of welded tube, fittings and flanges with thin walls ♦ An I/D based system ♦ This range IS NOT to be confused with the ISO range of tube sizes which are sometimes INCORRECTLY called ‘ISO Metric’ – The ISO sizes are a thin walled, lower cost alternative to ANSI Pipe and are not very popular in the UK. ♦ Note that an ‘Isometric’ is a pipe-work plan used by engineers and defined as follows: Isometric is a mathematical method of constructing a 3 dimensional object without using perspective. Isometric was an attempt to make drawing 3-D images easy and more realistic. The mathematics involved mean that all lengths when drawn at 30 degrees can be drawn using their true length (in other words lines aren't shortened as with oblique drawings). An isometric drawing shows two sides of the object and the top or bottom of the object. All vertical lines are drawn vertically, but all horizontal lines are drawn at 30 degrees to the horizontal. Where is this range used? ♦ Water and Waste Water Treatment ♦ Pulp & Paper ♦ Food & Drink (Pre-Process) ♦ Pharmaceutical (Bulk Handling) ♦ Chemicals ♦ Construction ♦ Semi Conductor and other Clean Room Facilities What are the advantages? ♦ Lightweight ♦ Demountable & re-usable ♦ Simple to fabricate and erect ♦ Quick and easy to commission ♦ Easy to alter the system, make additions, etc. ♦ Low footprint, handling weight and transport cost ♦ Flexibility of fit-up with option of ‘spinning’/backing flanges What is in the range? ♦ Tube ♦ Elbows, Tees, Reducers, End Caps ♦ Collars & Flanges ♦ Clips & Clamps What is the size range? ♦ 15mm to 900mm DN ♦ 18mm to 910mm O/D ♦ Wall Thickness 1.5mm to 5.0mm What do DN & O/D mean? ♦ DN = Nominal Diameter (I/D) ♦ O/D = Outside/External Diameter ♦ I/D = Internal Diameter What grades are available? ♦ EN 1.4432 (316L High Molybdenum) ♦ EN 1.4307 (304L) ♦ EN 1.4571 (316 Ti = 316 Titanium) ♦ In addition, Backing Flanges may be: o Aluminium – These may have an epoxy coating o Mild Steel – These will have a coating such as PPA571 Grey Epoxy, Zinc Plating What is the manufacturing specification? ♦ Dimensional tolerances are to SS/EN/ISO 1127 ♦ Alloys are to BS EN 10088 What is the finish? ♦ Sizes up to about 18mm DN may be bright annealed ♦ Sizes up to about 70mm DN will be annealed and pickled ♦ Larger sizes will be pickled but may be unannealed What markings will be on the fittings? Typically: ♦ Manufacturer’s Name or Symbol ♦ Size ♦ Grade For more information plus a complete table of sizes and dimensions please visit the Down-Loads page of the Aalco web site and select Metric Tru-Bore Stainless Steel Tube & Fittings. (http://www.aalco.co.uk/literature/liter ature.html#stainless) This information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company is respect of any action taken by any third party in reliance thereon As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose. Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the Company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.