Hơi Ẩm Và Bụi Bẩn: Tác Nhân Hàng Đầu Gây Rỉ Sét Rotor Và Kẹt Buồng Bơm Chân

In industrial operation, oil-sealed vacuum pumps are often called the “heart” of the system.

However, many users only check whether the pump is running. They overlook the hidden threats inside: moisture and dust.

Real Impact of Moisture and Dust

When the pump draws in humid air or fine dust without proper filtration, serious problems can occur:

Oil emulsification:
Water mixes with vacuum oil and forms a milky emulsion. This destroys lubrication and sealing performance.
Vane friction and sticking:
Contaminated oil prevents smooth vane movement. This can cause sticking or even vane breakage.
Oxidation and corrosion:
Moisture causes electrochemical corrosion. Rotor and pump chamber surfaces begin to rust.
Precision components may suffer permanent damage.

If not addressed in time, the impact can be severe:

Vacuum pressure drops:
The pump runs but cannot reach the required pressure.
High repair costs:
Replacing rotors, vanes, and restoring the chamber is expensive.
Costs can be many times higher than routine maintenance.
Unexpected downtime:
Every hour of stoppage means lost revenue and production delays.

To prevent corrosion and pump seizure, follow these four steps:

Strict oil monitoring:
Check oil condition regularly.
If emulsification appears, drain and clean the pump. Replace oil immediately.
Install protective filtration:
Add an oil mist trap or water separator at the inlet.
This blocks moisture and dust before entering the pump.
Use Gas Ballast operation:
Run the pump in Gas Ballast mode before shutdown.
This removes residual moisture and keeps the chamber dry.
Upgrade filtration systems:
Use high-quality oil filters, such as water-separating filters Taisei Giken
These remove fine contaminants and protect vanes and rotors.