back valve meaning in English
单路输电线
回动阀, 止回阀, 逆止阀, 单向阀
止回阀
Examples
- Dh746x microresistance butterfly back valve - changmao
Dh746x型微阻蝶式止回阀- changmao - Dh746x microresistance butterfly back valve
Dh746x型微阻蝶式止回阀 - 1 , the adjustable release valve above back valve shall be protected . it shall be changed if damaged
1止回阀上方的可调式缓闭阀，使用过程注意保护，如用损坏，及时更换。 - 2 , the hydraulic system of back valve shall be kept clean . oil filter with over 120 holes shall be applied when adding hydraulic oil
2止回阀的液压系统，要保持清洁，补充液压油用120目以上的滤油器，牌号ya n68 。