液压升降平台http://www.rgsjpt.com/旋塞阀的全称是金属硬密封提升式旋塞阀，金属硬密封提升式旋塞阀两侧阀座密封面均可密封，阀门的使用不受介质流向的限制。金属硬密封体提升式旋塞阀关闭时，可通过手轮和阀杆对阀座密封面加压，通过加大密封比压，可使旋塞阀具有更好的密封性能。阀座密封面凸起，便于密封面清洗，密封面不易积存结晶介质，或固体颗粒。
　　
1、液压升降平台手轮手柄式提升式旋塞阀，工作原理为上升，使旋塞和阀门全打开。关闭时先转动手柄使旋塞转动90度至关闭位置，再转动传动装置手轮使旋塞下降达到密封。阀门再启闭过程中旋塞与阀座相脱离，故阀门的启闭非常轻松，而且密封面在开启或关闭过程中不易擦伤，阀门使用寿命长。但采用手柄驱动力矩小，因此使用阀门的公称尺寸通常不大。手轮手柄提升式旋塞阀结构紧凑，体积小，流体阻力小。
Hydraulic lifting platform lift handwheel handle type plug, works for the rise, making taps and valves fully open. First, turn the handle when closing the cock rotated 90 degrees to the closed position, and then turn the hand wheel gear

dropped to seal the cock. Re-cock valve opening and closing process and the phase out of the seat, it is very easy to open and close the valve, and the sealing surface in the open or closed process is not easy bruising, valves and long

service life. But with the handle drive torque, so use the valve nominal size is generally small. Hand wheel lift handle plug compact, small size, low fluid resistance.
  
2、液压升降平台http://www.rgsjpt.com/十字架传动提升式旋塞阀，工作原理为开启阀门时传动装置转动阀杆的螺纹使旋塞体上升。旋塞和阀体密封面脱离后再驱动旋塞转动90度到阀门全打开。关闭时传动装置使旋塞先转动90度至关闭位置后，旋塞不再转动，驱动力转动螺纹后使旋塞下降，与阀体密封面接触达到密封。液压升降平台十字架传动机构可连接汽缸、电动装置、液压系统等进行远。
Cross drive hydraulic lifting platform lift plug, works for the open valve gear rotating threaded stem the rise of the cock body. Taps and valve sealing surface and then drive off cock rotated 90 degrees to the valve is fully open. When you close the cock first gear to rotate 90 degrees to the rear position closed, cocks no longer rotates, the driving force of the cock after turning the threaded down into contact with the valve sealing surface to seal. Hydraulic lifting platform can be connected to the cylinder cross transmission, electric, hydraulic systems and other far.