Direct buried soft sealing gate operation and characteristics of pneumatic valve

buried type pneumatic soft sealing gate valve is also called the pneumatic buried soft sealing gate valve, pneumatic valve can be directly buried, don't lay CMC, reduce the area of the road surface excavation; Tiny hole room can keep the road is beautiful, reduce the construction difficulty, reduce the project cost. Directly buried type pneumatic soft sealing gate valve telescopic and fine-tuning fixed type two kinds, including telescopic, metal and plastic. In the process of construction, telescopic according to pneumatic valve buried depth and the distance between the ground for a wide range of adjusted, fine-tuning stationary can adjust the trace. Directly buried type pneumatic soft sealing gate valve has the advantages of use for a long time does not leak, free maintenance, also can effectively avoid others arbitrarily switch pneumatic valves and stealing manhole covers.

direct buried soft sealing gate operation and characteristics of pneumatic valve
a, small flow resistance. Pneumatic valve internal media channel is direct, medium flows in a straight line, small flow resistance.
second, more effort when opening and closing, is compared with the pneumatic valve, because whether on or off, ram direction perpendicular to flow direction of medium.
3, height, opening and closing time is long. Gate opening and closing of the trip is bigger, is through the screw.
4, water hammer is not easy to produce, because of closing time is long.
5, medium can be on both sides to any direction, easy to install. Brake pneumatic valve channel is symmetrical on both sides. Six, the structure length (
The distance between the two connection system shell end face is smaller.
7, sealing surface wear easily, affect the service life. Open/close the gate two sealing surface sliding friction with the pneumatic valve seat, to medium pressure easy cause abrasion wear, affect the sealing performance, shorten service life.
8, the price is more expensive. Contact seal face more, processing more complex, especially the gate seat sealing surface is not easy to processing, and more parts.
9, pneumatic soft sealing gate valve body is simple, the structure length is short, make good manufacturability, wide application scope.
10, compact structure, good rigidity, pneumatic valve channel flow, number of flow resistance is small, the sealing surface is made of stainless steel and hard alloy, long service life, using PTFE packing, reliable seal, flexible operation of the light.
buried type pneumatic soft sealing gate valve parameters:




models


buried ZX -


buried ZX -




nominal pressure


. MPa( kgf/cm


。 MPa( KGF/cm




nominal diameter


- mm


- mm




well tube length


. ~ m


。 ~ m




well tube telescopic adjustment amount


. ~ m


。 ~ m





seal test pressure

. MPa( kgf/cm


。 MPa( 。 KGF/cm




strength experiment pressure


. MPa( kgf/cm


。 MPa( KGF/cm




applicable temperature


- ~℃


- ～℃




适用介质


水、油、天然气及其他非腐蚀性流体


水、油、天然气及其他非腐蚀性流体




驱动方式


手动


手动




亦可根据客户要求，提供具有特殊技术参数的产品




直埋式软密封闸气动阀材料表:




气动阀体


灰铸铁、球墨铸铁




闸板


灰铸铁、球墨铸铁、NBR、NR、EPDM




气动阀盖


灰铸铁、球墨铸铁




气动阀杆、伸缩杆


不锈钢




密封套


黄铜




气动阀杆螺母


黄铜




密封圈


NBR




井管伸缩部分


钢管加两层防腐处理




井室井盖


灰铸铁、球墨铸铁




制造规范
气动阀门连接尺寸符合GB。 - Standard, pneumatic valve structure accord with GB/T - length Short series standard, pressure test in accordance with GB/T - Requirements.
buried type pneumatic soft sealing gate valve installation notice:
brake pneumatic valve and pipeline connection should keep natural smooth, avoid to produce perpendicular to the pipe bending force, brake pneumatic valve and the well chamber, well tube section vertical installation shall be maintained. When installation, ensure the expansion pipe connected to the telescopic rod
and reliable, and the well chamber position should be in the well chamber at the top and flat on the ground, telescopic rod for pneumatic valve in - to the top of the well chamber at the top of the distance Centimeters advisable.