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Name : 2'' 20'' butterfly valve /Wafer type butterfly valves / centerline butterfly valve / Valves / Butterfly valvesNameWafer type butterfly valveDesign standardAPI609 , BS5155 , MSS-67-1995Face to faceAPI598Tubing flangeBS/ DIN / ANSI/ JIS / ASE / ASD / BS10D / BS10E / UNIInspection and testAPI598 , ISO5208-1982Driving styleLever , gear , actuator , pneumaticFeature :-Small in size and light in weight . Easy to install and maintain .-Simple and compact inspection , quick 90 degrees on-off operatior.-Minimized operating torque , energy saving .-Flow curve in straight line , Excellent regulation performance .-Long working life , 30,000 times on-off without leakage .-Wide selection of materials , application for various medium .Application:1.these products are mainly used for pipeline flow , pressure and temperature control of various industrial automation productiong , for example : electricity , petrifaction , metallurgy , environmental protection , energy management , fir-fighting systems.2.simultaneously they have good fluid control properties , and can operate simply .3.They are not only widely used in general industries as petroleum , coal gas , chemical engineering , water treatment , but also used in the cooling water system of thermal power plant .Our company has very strong technical ability and production capacity , from originally product design , to casting , machining and final product assembly.Mainly products our factory can produce as follows :1. Wafer type butterfly valve ( style : lever , gear box , pneumatic apparatus , electronic apparatus ), Fire-proof butterfly valve .2. Double disc Check valve , Grooved end butterfly valve , Lug type butterfly valve , Industry butterfly valve , Non rising stem single wedge disc Gate valve .3.U type butterfly valve (flange connection , style : electronic / pneumatic )4.Double eccentric butterfly valve (style : electronic / pneumatic )5.Stainless steel butterfly valve - lever , gear box , actuator, pneumatic apparatus.6. Y-Strainer .7.Middle line flange butterfly valve (D341)8.Corrosion resistant butterfly valve .Any questions about Valves you can contact me directly , sincerely hoping to make coorperation with your company.