Add lubricant to the transmission parts regularly . check the sealing filler of the valve regularly . complement or change filler avoiding leakage of medium 定期给阀的传动部位加润滑油。定期检查阀的密封填料处,补充、更换填料以防介质外泄。
2.
Add lubricant to the transmission parts regularly . check the sealing filler of the vlave regularly . complemetn or change filler avoiding leakage of medium 定期给阀门的传动部位加润滑油。定期检查阀的密封填料处,补充、更换填料以防介质外泄。