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手动盲板阀系GB6222《工业煤气安全规程》要求的可靠切断气体介质的设备。它广泛适用于建材、玻璃、矿山、电力、轻工、造纸等行业的气体介质管路系统中，特别适用于有害、有毒、易燃气体的切断，或做管道终端盲板。以缩短检修时间或方便连接新的管路系统。
This valve is the reliable equipment to cut off gas medium in accord with GB6222 Industry Coal gas Safety Regulation. It is widely used in the pipe system in building material, glass, mining, power, light industry and papermaking departments. It is especially suitable for poison inflammable gas to be cut off or be the terminal blind plate of pipe in order to shorten maintenance time or connect new pipe system.
结构特点：
Structure characteristic:
手动盲板阀具有结构新颖、耐磨损、密封性可靠、操作灵活、安装方便、维护方便、使用寿命长等优点，带有管道伸缩器，能在切换阀板时不影响管道设施。特别适用于要求快速切断及换向的场合。配用旋转连接轴螺旋副或蜗轮传动装置，可实现启闭操作，是切换密闭的理想设备。
The valve has the features of compact structure, endurance, reliable seal, flexible operation, easy to maintenance and long life. It can switch valve disc with pipe expansion, which will not affect pipe device. It is suitable in the condition of adjusting, cutting off and self-protecting quickly. The valve is used with rotating connecting axle screw or worm gear driving to form a complete set to realize open-close operation. It is the ideal equipment of switching seal.
性能参数：
Performance parameter:
|
公称压力Nominal pressure (MPa) |
0.05 |
|
密封试验压力Seal test pressure(MPa) |
0.055 |
|
强度试验压Strength test pressure(MPa) |
0.075 |
|
适用温度Suitable temperature |
-10℃ -120℃ |
|
使用介质Suitable medium |
空气、烟气、粉尘气体等 Air, smoke, gas with powder etc |
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