检查自动给水系统的止回阀,截止阀等各阀是否正确开启或关闭。
Examine the check valve, cut off valve of auto water supplying system see if open or close correct.
本实用新型涉及一种加装止回阀内泄故障反馈装置的成套给水设备。
The utility model relates to a set of water supply facilities which is provided with a fault feedback device for the internal drainage of a check valve.
本实用新型涉及一种加装止回阀内泄故障反馈装置的成套给水设备。
The utility model relates to a set of water supply facilities which is provided with a fault feedback device for the internal drainage of a check valve.
应用推荐