With the development of electric valves, there are many well-known enterprises at home and abroad in the application field of electric butterfly valves. Now electric butterfly valves are more and more widely used in technology. The products have won the favor of customers with excellent quality and perfect after-sales service. The main connection methods are flange type and wafer type. It is an important performance unit in the field of industrial automation control. It belongs to electric valve and electric regulating valve. It is widely used in textile, power station, petrochemical industry, heating and cooling, pharmacy, shipbuilding, metallurgy, light industry, environmental protection and other fields.

Recently, Xiao Bian found a problem that cannot be ignored, that is, when customers purchase pneumatic butterfly valves, they do not understand their various models and functions, let alone the specific parameter values. In the final analysis, they do not think whether the butterfly valve they bought is really suitable for their pipeline or should be replaced by a better butterfly valve, which may save some costs.