Q11F/Q61F type internal thread, welding type 1000WOG three piece ball valve is suitable for PN1.0 ~ 4.0MPa, temperature -29 ~ 180 ℃ (seal for the reinforced PTFE) or -29 ~ 300 ℃ (seal for the para polyphenyl) of various pipelines, used to cut off or connect the line of medium, use different materials, can be separately applicable to water, steam, oil, nitric acid, acetic acid and other media.
Q11F/Q61F-1000WOG三片式球阀工作原理如下：
The following Q11F/Q61F-1000WOG three chip ball valve working principle:
一、开启过程
One, open process
1在关闭位置，球体受阀杆的机械施压作用，紧压在阀座上。
1 in the closed position, the valve ball mechanical 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.
二、关闭过程
Two, the 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°。
The 3 is closed, the sphere has been no contact with the valve seat under the condition of 90 DEG rotation.
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。
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.
