leather valve ring 皮制阀圈
plunger valve ring 柱塞阀密封圈
piston valve ring 活塞阀填密环 ; 变量阀环
main valve ring [机] 主阀环
air valve ring 气动阀环
cylindrical valve ring gate 圆筒阀
slide valve ring 滑阀环 ; 滑阀弹簧
Exchange the sealing ring of the valve body according to the working condition of rubber sealing ring in order to ensure the sealing performance.
按橡胶密封圈使用性能，根据具体情况定期对阀体的密封圈进行更换，以保证阀门的密封性能。
An often overlooked function of oil is ring and valve sealing.
一个经常被忽视的功能是环和油阀密封。
Remove the pressed in relief valve seat and seat O-ring.
拆卸压进去的安全阀阀座和阀座o形环。
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