The characteristics of the electric pneumatic wedge gate valve (2)

electric pneumatic wedge gate valve seal face and a point of two shaft pipe, pneumatic valve sealing surface is twenty percent, general 'Angle',, and sealing surface wedge. Several, tilt Angle of medium temperature depends on general high working temperature, the greater the Angle, should be taken to reduce the temperature, the possibility of a wedge introduction. Electric pneumatic wedge gate valve is a straight line, pneumatic valve, combined with Z type rotary actuator matching, based on the intelligent switches. The pneumatic valve is the most common simple open breath valve, use the up and down the door opening and closing of the working fluid pipe. Widely used in electric power, metallurgy, petroleum, chemical industry, paper making, sewage treatment and other industries. First, the characteristic. Fluid resistance small, erosion and erosion by the media, Halls open) Sealing surface. Open the more powerful, sealed performance is good, the media flow is not restricted, don't add flow, not downward pressure. 。 A simple shape, excellent manufacture process, use range. 。 The sealing face of the low accuracy of Angle; 。 The temperature rise will not cause the phenomenon of wedge; 。 Sealing surface can join the pad wear compensation. 。 Close the pneumatic valve requires less torque.