Six sense reversing pneumatic valve working principle and structural characteristics

in petroleum, chemical, mining and metallurgical industries, six reversing pneumatic valve is a kind of important fluid commutation equipment. The pneumatic valve installed in thin oil lubrication system conveying lubricating oil pipeline. By varying relative position in the pneumatic valve sealing components, make each channel connected or disconnected, pneumatic valve to control the reversing of the fluid and stop.
6 through the reversing of the pneumatic valve performance parameters of the nominal size
( Mm ~
applicable temperature ( ℃ ~
nominal pressure at room temperature ( MPa。
applicable medium oil flange

connection strength test pressure ( MPa。
sealing test pressure ( MPa。 Pressure test temperature (
℃ temperature
6 through the reversing pneumatic valve working principle and structure characteristics of the
six sense reversing pneumatic valve is mainly composed of CAM, pneumatic valve, pneumatic valve, sealing components, rod, handle and pneumatic valve cover parts etc. Pneumatic valve driven by handle, with the handle pneumatic valve stem and the CAM rotates, CAM has the drive and lock seal assembly of opening and closing function. Handle counterclockwise, two groups of sealing components under the action of CAM, respectively from the lower pole of the closed two channel, two channel and pipeline installation at the top of the import is same. On the other hand, the top two channel closed, the bottom two channel and pipeline installation imports are interlinked, without a stop reversing is realized.
( Six air valve of pneumatic valve body by the baffle plate is divided into two cavities, each cavity has a channel, in the middle for the oil inlet, at both ends for the oil outlet. Pneumatic valve body for carbon steel welding structure, small size, light weight, compact structure, and improve the material utilization, shorten the production cycle, reduce the cost. Sealing surface welding stainless steel, rust corrosion, sealing surface after finishing polishing grinding, the surface roughness Ra or less. μm。
( Six ventilation valve has two sets of sealing components. Each group of seal assembly consists of pneumatic valve, sealing ring, adjusting block, adjust the screw, clamp and bolt. Pneumatic disc for carbon steel plate welding pieces, strengthening ribs, increase the strength of pneumatic disc and guiding role, to ensure alignment between each group of pneumatic valve. Pneumatic valve disc set with polyurethane rubber ring, the material has oil resistance, wear resistance, stable performance, good sealing and long service life characteristics. Under the action of CAM, sealing ring of spherical contact with pneumatic valve seal faces compresses the elastic deformation, to achieve sealing effect. Adjust the block and adjusting screw seal assembly can't synchronization in place when the two groups can adjust the role, to ensure the synchronization channel sealing performance in place.
( Pneumatic valve stem and valve plate and the pneumatic axial seal between the valve cover o-ring.
( Pneumatic valve plate and the shaft hole with pneumatic valve cover with copper sets, can reduce the friction torque between the o-ring and, opening and closing flexible sealing components, operating torque is small.
( Pneumatic valve cover with signs and limit screw, pneumatic valve stem pointer installation, clear instructions on condition of each channel is easy to operation.