什么是气动截止球阀
2015年5月21日
气动切断球阀配备有行程限位开关,电磁阀,减压阀和0.4-0.7MPa空气源,其可以实现切换操作并发出两个无源接触信号,指示阀门开关。致动器可分为两种类型:单作用致动器和双功动致动器。单作用致动器的独特优势在于,在电源故障的情况下,气动截止球阀将根据系统要求自动打开或关闭。气动截止阀广泛应用于化学,石油,纺织,电力,食品和制药,制冷,航空,航空航天,造纸等行业。它不仅可以控制气体,液体和蒸气介质,还可以应用于污水控制。气动切断球阀的特性1.流体电阻小,球阀是具有最小流体阻力的阀之一。即使球阀减小,其流体阻力也很小。2.推力轴承可以减少阀杆的摩擦扭矩,使阀杆光滑柔韧。3.良好的阀座密封性能。密封环由铁氟龙和其他弹性材料制成,用于出色的密封工作。 In addition, with continued high and medium pressure, the sealing capacity of the ball valve will increase. 4. Reliable valve stem sealing performance. Because the valve stem itself can only perform rotary motion instead of lifting movement, the packing seal of the valve stem is not easy to be damaged, and its sealing performance will be better as the medium pressure increases. 5. Due to the good self-lubricating performance and small friction loss of Teflon and other materials, the pneumatic cut-off ball valve can have a longer service life.
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