(1) understand the equipment, to understand the equipment shaft speed, shaft; equipment manufacturing precision and the size of the sealed chamber, the status of life and equipment of the device itself in the production process to do a comprehensive and balanced consideration.

(2) to estimate the medium pressure. The pump seal chamber pressure is generally not the pump outlet pressure, but lower than the pump outlet pressure

(3) clarify the sealing media situation. To understand the state of the sealing medium is a gaseous or liquid medium containing particles and particle position; understand the nature of the medium, temperature, in order to rationalize the selection and take the necessary cooling, washing, lubrication measures.



Other News:
Mechanical seal installation to use the basic precautions
Rust-proof metal machinery and equipment handling operations process
The Philippines, why dare to clamor, ＂Be careful＂?
Iran rebar prices hit a record high
Huangyan Island News: The move set off a monstrous big waves
Japanese rebar prices loose, but the construction industry improved prospects
People's Liberation Army East China Sea a big move: has released the no-fly Noti
The European Central Bank cut interest rates by 0.25 percentage points