由于动荷载引起的管道震动和损坏，例如机械震动，声波震动，液击，压力脉动和泄放阀门泄放时引起的震动。
Piping vibration or damage caused due to dynamic loads, such as mechanical vibration, acoustic vibration, fluid hammer, pulsation and relief valve discharge.
液动驱动方式结构简单，重量轻，输出力矩大，在大口径、单回转阀门中常用。
The hydraulic drive is used commonly on valve with big caliber and simple tuning characteristic because of its simple frame, weight light, great deferent power comparatively.
阀门的驱动方式可以根据实际使用工况选用气动、电动、液动、手动、电液动、气液动等。
Driving model is according to actual working condition and can be pneumatic, electric-hydraulic, ect.
阀门的驱动方式可以根据实际使用工况选用气动、电动、液动、手动、电液动、气液动等。
Driving model is according to actual working condition and can be pneumatic, electric-hydraulic, ect.
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