The Basics of Mechanical Seals 

No problem, glad we could help! Good luck!

Hi there. The stationary is not rotating. To make it clearer you can see our logo on the top of the stationary and it does not move.

@@totallyseals4967 yeah but it looks like the half part (end part of stationary face )of it is rotating in the animation

It does look like it but it’s not. There’s a reflection from the rotary face. The stationary face is one piece so no part of it is moving. Hope that helps.

@@totallyseals4967 thanks a lot

There’s a thin layer of the fluid your pumping between the rotating and fixed surface. Look up pipe plans because there’s a lot of different ways you can do it.

The layer is around one micrometer thick but it varies between applications and tolerances

Well ,am not an expert on this subject. With this caveat , let me try to answer you . A seal is measured by internal diameter, external diameter and the height .

To this,there as many seal sizes as there are different shaft diameters. Good luck

Hello, we will try!

@@totallyseals4967 try to explain with parts names

Stuffing box is a seal to stop leaks for a rotating or sliding shaft. Gland is a type of stuffing box seen in taps and also in some boats. Mechanical seal is a different sealing system that was introduced more recently.

The mechanical seal is normally set inside the stuffing box (back in the day people literally used to stuff a box with all sorts of stuff to prevent leaking). The gland is an additional part that "locks" the mechanical seal in place. Think of it like putting leftover in a tubaware. The food is the mechanical seal, the tubaware is the stuffing box, and the lid that goes on top of everything is the gland to keep everything in place.