The different types of mechanical sealing
Single or double mechanical sealing
A single mechanical seal refers to a seal that prevents the flow of fluid from one enclosure to another. On the other hand, if the seal is to block the flow of any other fluid contained in the second enclosure to the first, the seal must be made in both directions. This is known as double mechanical sealing.
Dynamic or static sealing
Dynamic or static sealing is determined according to the characteristics of the mechanical parts connected by a seal. If the two parts likely to leak are fixed to each other, it is a static seal. However, when the two mechanical parts of a machine are in motion relative to each other (rotary or linear), it is a dynamic seal.
When it comes to dynamic sealing, we are dealing with only two kinds of relative movements, which can be combined:
- linear translation (relative sliding of a piston in a cylinder)
- rotation (relative rotation around a common shaft axis in a hub or housing).
What is the difference between the seal and the dynamic seal?
A seal is a device that prevents the passage of fluid from an adjacent enclosure. When it comes to ensuring a seal between two mechanical parts that are in motion relative to each other, the term "dynamic seal" is used.
Paulstra Industry offers two dynamic sealing solutions based on decades of research and engineering. These seals (wiper seal and Radial shaft seal) are well suited for industrial applications. Their use prevents leakage on machines and appliances, as well as any infiltration of dust and impurities into their mechanism.
IGS files and 3D views are available on every product page of our dynamic seals, tab "IGS files and 3D views".
As an expert in anti-vibration solutions, Paulstra Industry also offers a wide range of elastomeric anti-vibration mounts.
Contact us for information on our sealing, anti-vibration and soundproofing.