- pneumatic ball valve To explore the installation and maintenance, and use effect of pneumatic valve adjustment

stainless steel butterfly pneumatic valve can be divided into the form of the structure of offset plate, vertical plate, inclined plate and lever. Can be divided into the form of the sealed type seal and hard seal type two kinds. Soft seal type generally use rubber ring seal, metal hard seal type usually adopt ring seal. According to the connection type can be divided into flange and clamp connection; According to the methods can be divided into manual transmission, gear transmission, pneumatic, hydraulic and electric. Stainless steel butterfly pneumatic valve structure: stainless steel butterfly pneumatic valve spring and clamp on adjusting bolt assembly structure. This structure can effectively compensate the body between the collar and pneumatic tolerance zone and pneumatic valve stem under medium pressure elastic deformation, solved the pneumatic valve in the two-way exchange medium sealing problems exist in the process of delivery. Soft T on both sides of the multi-layer stainless steel pieces of sealing ring, with metal sealing and soft sealing the dual advantages of under low temperature and high temperature circumstances, all with zero leakage sealing performance. Trials show that pool is flow state ( Medium flow direction is same as the rotation direction of the butterfly plate) , the sealing surface pressure is the drive torque and the medium pressure in the role of the pneumatic valve plate. Positive pressure medium pneumatic valve plate oblique cone surface and pneumatic valve seat sealing surface squeezed tight, sealing the better the results. When the current state, pneumatic valve plate and seat sealing between by the drive torque pneumatic valve plate pressure to the pneumatic valve seat. , with the increase of reverse medium pressure pneumatic valve plate and the positive pressure pneumatic seat between units is less than the medium pressure, adjust the ring after the loading of the spring deformation energy stored by compensation pneumatic valve plate and valve seat sealing surface of the tight pressure automatic compensation effect. So the utility model is not like the existing technology, soft hard multi-layer sealing ring, installed in the pneumatic valve plate directly installed on the pneumatic valve body, in the middle of the clamp and pneumatic seat add adjustable ring is the ideal way of two-way hard seal. It will replace the brake pneumatic valve, globe pneumatic valve and ball valve in this kind of pneumatic valves shall generally be installed in the pipeline. Butterfly butterfly plate installed on the diameter of the pipe of pneumatic valve. In the cylindrical channels of pneumatic valve pneumatic butterfly valve body and disc butterfly plate around the axis of rotation, rotation Angle for ° - Between °, rotate to °, the pneumatic valve is fully open. Stainless steel butterfly the advantages and disadvantages of pneumatic valve, pneumatic valve stainless steel butterfly, convenient opening and closing rapidly, the advantages of energy saving, fluid resistance small, can often operation. , simple structure, small volume, light weight. , can transport the mud, and the apertures least accumulated liquid. , low pressure, can achieve good sealing. And good regulation performance. The shortcoming of pneumatic valve, stainless steel butterfly, working pressure and working temperature range is small. Poor, sealing. Butterfly pneumatic valve has simple structure, small volume, light weight, only by a few parts. And simply rotate ° rapid opening and closing, simple operation, at the same time, the pneumatic valve has good flow control characteristics. Butterfly pneumatic valve in the fully open position, the butterfly plate thickness is only pneumatic valve body resistance, the medium flows through a surrogate accordingly by the pneumatic valve pressure drop is small, the filter has good flow control characteristics. Butterfly pneumatic valve seal and metal sealing machine has two sealing type. Elastic sealing pneumatic valve, sealing ring to be set on the pneumatic valve body or attached to the butterfly plate peripheral. Using metal seal pneumatic valve generally live longer than elastic sealing pneumatic valve, but it is hard to be completely sealed. Metal sealing can adapt high working temperature, elastic seal has the defect of being limited by the temperature. If required control pneumatic valve used as flow control, mainly is the right choice of size and type of pneumatic valve. Adjusting the structure principle of pneumatic valve is especially suitable for production of large diameter pneumatic valves. Butterfly pneumatic valve not only in the oil, gas, chemical industry, water treatment and other general industrial used widely, but also applied to the cooling water system of thermal power plants. Commonly used control pneumatic valve has the wafer butterfly valve and flanged butterfly pneumatic valve two kinds. Wafer butterfly valve pneumatic valve pneumatic valve is in the stud connection in place between two pipe flanges, the flange type butterfly is pneumatic valve pneumatic valves with flange, bolts on the pneumatic valve flange connection on the pipe flange on both ends. If throttled the larger state of pneumatic valve, pneumatic valve plate on the back of the easy cavitation occurs, the possibility of damage pneumatic valve, are generally used on outside °. Butterfly in the pneumatic valve in the opening, the oxygen pneumatic valve pneumatic valve body and disc front formed opening shape with pneumatic valve shaft as the center, on both sides of the form a complete different state, the butterfly plate on one side of the front direction and downstream water, on the other side countercurrent water direction, therefore, on one side of the pneumatic valve with pneumatic valve plate forming as the nozzle opening, on the other side is similar to throttle aperture openings, nozzle side of more quickly than the throttling velocities, and side below will produce negative pressure pneumatic valve, throttle rubber seals often can appear fall off. Butterfly pneumatic valve, operating torque shelves for opening and the direction of pneumatic valve opening and closing its different values, different horizontal pneumatic valve gate, especially large diameter pneumatic valve, due to water depth, pneumatic valve shaft, the water head difference generated by the torque also nots allow to ignore. In addition, pneumatic valve inlet side bend, form the bias current, torque will be increased. Of the opening of the pneumatic valve in the middle, because the water flow torque, operators need to be self-locked.
YAZE( Pneumatic company's main products: pneumatic pneumatic valve pneumatic ball valve pneumatic butterfly valve Keywords: pneumatic pneumatic valve pneumatic pneumatic valve