Insulation ball valve BQ45F-16P insulation ball valve and gate valve is the same type of valve, insulation ball valve
保温球阀BQ45F-16P优点:
Insulation ball valve BQ45F-16P:
1． 流体阻力小，其阻力系数与同长度的管段相等。 2． 结构简单、体积小、重量轻。 3． 紧密可靠，目前球阀的密封面材料广泛使用塑料、密封性好，在真空系统中也已广泛使用。 4． 操作方便，开闭迅速，从全开到全关只要旋转90°，便于远距离的控制。 5． 维修方便，球阀结构简单，密封圈一般都是活动的，拆卸更换都比较方便。 6． 在全开或全闭时，球体和阀座的密封面与介质隔离，介质通过时，不会引起阀门密封面的侵蚀。 7． 适用范围广，通径从小到几毫米，大到几米，从高真空至高压力都可应用。 球旋转90度时，在进、出口处应全部呈现球面，从而截断流动。 保温球阀是一种比较新型的球阀类别，它有着自身结构所独有的一些优越性，如开关无摩擦，密封不易磨损，启闭力矩小。这样可减小所配执行器的规格。配以多回转电动执行机构，可实现对介质的调节和严密切断。广泛适用于[wiki]石油[/wiki]、[wiki]化工[/wiki]、城市给排水等要求严格切断的工况。
1 fluid resistance small, the drag coefficient with the same length of pipe. 2 has the advantages of simple structure, small volume, light weight. 3 closely reliable, current valve sealing surface material widely used plastic, good sealing performance, in the vacuum system has also been widely used. The 4 operation is convenient, quick open and close, from fully open to fully closed as long as the rotation 90 °, facilitate remote control. 5 ball valve has the advantages of simple structure, convenient repair, seals are generally activities, the removal of the replacement is more convenient. 6 in the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, the medium through, will not cause erosion of the valve sealing surface. The 7 is suitable for a wide range, from small diameter to a few millimeters, a few meters from the high vacuum, high pressure can be applied. The ball is rotated 90 degrees, in the inlet, the outlet should be fully present sphere, thus cutting off the flow. Insulation ball valve is a new type of ball valve type, it has some advantages of the unique structure of its own, such as the switch without friction, seal is not easy to wear, hoist torque small. This reduces the actuator with the specifications. With multi turn electric actuator, which can be realized on the media regulation and tight shutoff. Widely used in petroleum chemical industry, [wiki] [wiki] [/wiki] [/wiki], city water supply and drainage requirements strictly cutting conditions.
保温球阀BQ45F-16P的工作原理
The working principle of thermal insulation ball valve BQ45F-16P
开启过程：
Open process:
1在关闭位置，球体受阀杆的[wiki]机械[/wiki]施压作用，紧压在阀座上。
1 in the closed position, the valve ball [wiki] [/wiki] pressure action, pressed on the seat.
2当逆时针转动手轮时，阀杆则反向运动，其底部角形平面使球体脱开阀座。
2 when the handwheel counterclockwise, the stem is the reverse movement, the bottom of the angular plane to disengage the ball seat.
3阀杆继续提升，并与阀杆螺旋槽内的导销相互作用，使球体开始无摩擦地旋转。
3 stem continues to improve, and with the spiral groove of the guide pins stem interactions, the ball began to spin without friction.
4直至到全开位置，阀杆提升到极限位置，球体旋转到全开位置。
4 up to the fully open position, the valve stem to the limit position, rotate the sphere to the fully open position.
关闭过程:
Closing process:
1关闭时，顺时针旋转手轮，阀杆开始下降并使球体离开阀座开始旋转。
1 off, rotate the hand wheel clockwise, the stem began to decline and to leave the seat to rotate a sphere.
2继续旋转手轮，阀杆受到嵌于其上螺旋槽内的导销的作用，使阀杆和球体同时旋转90°。
2 continue rotating the handwheel, the stem is embedded in the spiral groove of the guide pin, the stem and ball rotating 90 °.
3 快要关闭时，球体已在与阀座无接触的情况下旋转了90°。 4手轮转动的最后几圈，阀杆底部的角形平面机械地楔向压迫球体，使其紧密地压在阀座上，达到完全密封。
The 3 is closed, the sphere has been no contact with the valve seat under the condition of 90 DEG rotation. 4 hand rotation of the final laps, the stem at the bottom of the angular plane mechanical wedge pressure sphere, so closely pressed on the seat, to be completely sealed.
