High-pressure sealed mechanical shaft seal

Geometrically identical seal rings
The seal features four geometrically identical seal rings in a back-to-back configuration, ensuring the highest level of sealing reliability, even under the most demanding high-pressure process conditions.

Stable ring positioning under pressure reversals
A unique advantage of the ESD64H is its ability to maintain seal ring positioning regardless of pressure direction changes. This makes it especially well-suited for processes with frequent pressure reversals, where consistent sealing performance is critical.

Resistant to deformation and extreme operating conditions
The ESD64H is engineered to withstand pressure surges and significant agitator shaft deflection without deformation.
It is also suitable for operation at extremely high temperatures while offering efficient heat dissipation. Key benefits include minimal leakage and extended service life, making it an optimal choice for mission-critical applications.

Designed for demanding industries
This seal is ideal for use in challenging sectors such as bulk chemicals, specialty chemicals, and hydrometallurgy, where high-pressure sealing is essential for safe and efficient process operation.

Proven performance in mixing applications
Double-acting, liquid-lubricated mechanical seals such as the ESD64H are the most commonly used solution for sealing in mixing vessels.
They perform reliably across nearly all process conditions and can also be configured as gas-lubricated versions, where a continuous gas supply maintains a fine gap between seal faces to reduce friction and wear.