Key points for selecting butterfly valves

1. The main control parameters of butterfly valves are specifications and sizes.
2. The butterfly valve is a single-plate air valve with a simple structure, easy processing, low cost, and easy operation. However, the adjustment accuracy is poor and it is only suitable for switching or rough adjustment in ventilation and air conditioning systems.
3. It can be operated manually, electrically or by zipper, and can be fixed at any angle within a 90° range.
4. Due to the single shaft and single valve plate, the bearing capacity is limited, and the service life of the valve is short under the conditions of large pressure difference and large flow rate. The valve can be divided into closed type and ordinary type, insulation type and non-insulation type.
5. The electric butterfly valve only has two-position control, and the electric actuator is the same as the multi-leaf valve.