The CAM slots (112) in the CAM bars (102) are profiled such that the CAM followers (106) affect the speed and force at which the valve stems (110) travel.
所述凸轮条(102)中的所述凸轮狭槽(112)经成型以使得所述凸轮跟随器(106)影响所述阀杆(110)行进的速度和力。
The bonnet and packing box of low temperature service instrument in-line valves shall be extended bonnet type or heat traced, if necessary, to avoid freezing of valve stems.
低温设备仪表在线阀门的阀帽和填料箱应为加长阀帽型或伴热型(必要时)，从而避免阀杆结冰。
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