According to media performance and the use of period and should always check the valveorifice at the top of the Ministry of PTFE seals and PTFE sheet.
根据介质性能及使用期，应经常检查阀体顶部四氟密封圈和孔板部的四氟薄片。
2
The filter member includes a filtering part to filter oil, a second orifice to rectify oil flow, and a checkvalve to permit oil to flow back when braking operation is released.