What is the difference between Longnan electric sanitary butterfly valve and electric ball valve? 1. Strong erosion resistance. The valve body and valve cover are integrally cast, with a wide working temperature of 40~450 ℃ and a working pressure of 10MPa. 2. Small wear and long service life. When the eccentric ball plug is opened, its contact with the valve seat ring can be reduced to a minimum. Therefore, the wear caused by rotation is very small. It also reduces friction, improves the dynamic characteristics of the control valve, and extends the service life of the control valve. 3. Large adjustable ratio. Full cavity type can reach 100:1; 60% cavity shrinking type can reach 60:1; 40% cavity shrinking type can reach 40:1. 4. Good sealing performance. The deflection deformation of the bending arm of the valve core enables the valve core to compress the sealing ring of the valve seat to ensure good sealing. The standard leakage is less than 0.01% ℃. 5. Large circulation capacity. The flow capacity can reach 1.2 times of the double seat valve with the same diameter. 6. The flow characteristic is close to the modified parabola characteristic, and does not change the flow characteristic when the flow direction changes. 7. Good dynamic stability. Only a small torque is required to close tightly. When the flow direction changes, the acting torque of the fluid on the valve core counteracts each other, and there is no undercutting phenomenon of the plunger valve. Therefore, the dynamic stability is better than that of the plunger valve and butterfly valve. 8. The valve body can be lined with various corrosion-resistant or abrasion resistant lining materials to adapt to the operation under various operating temperature and pressure conditions, as well as the control of corrosive and particle containing fluids. 9. Light weight, small size, flexible installation and strong versatility.
、 Therefore, if we want to ensure normal operation, we must pay attention to the actual situation of the pneumatic control valve, and then understand that if we want to do normal operation, what type of pneumatic control valve can be selected to ensure the working effect.
