Electrical Desulfurization Butterfly Valve

This butterfly valve with handwheel is suitable on system such as petroleum, chemical industry, foodstuff, medicine, papermaking, water and electricity, shipping, plumbing, the smelting and sources of energy etc., and can be used as adjusting and daming equipmrnt on gas, liquid, semifluid as well as solid powder pipes and power lines and the container of many kinds of corrosiveness and non-corrosiveness. Especially extensively being used in  the fire protection system of high building and other pipe system which needs to show the switch state.