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These cast iron butterfly valves are generally used within potable water and heating (cold and hot water) systems. The lug butterfly valves are also suitable for food and chemical industry. The seats are not suitable for mediums having abrasive property (acidity or alkaline property). Resistance to sunlight, weathering and ozone. Poor resistance to petroleum oils and fuel. Good heat and compression set resistance. Suitable for: Less than 10% acids, inorganic and organic alcohols, alkaline salts and solutions, dry bulk, hot-cold water, steam Not suitable for Hydrocarbons

Stainless steel tube is typically specified by OD (outside diameter) WT (wall thickness), grade, condition and surface finish. It is resistant to many forms of corrosion, has hygienic sterile properties, high quality aesthetic appeal and exceptional strength. Tube is manufactured in round, sections in a variety of wall thicknesses and usually by the processes of longitudinal welding, hot and cold drawing spiral welding. Finishes or appearance range from unpolished to very highly polished. Unpolished has a 2B mill finish, standard polished is a finely grit polished finish and there is a finer buffed finish giving close to a mirror appearance. Finishes are selected to suit application and aesthetic appeal. Stainless steel tube can be joined by welding, which facilitates rigidity in construction, or by the use of mechanical fittings which enables dismantling for hygienic cleaning