Aston KGD/AE Type

The piston seal type Aston Seals KGD/AE is composed of:

• A sealing rubber element with low permanent deformation which assures good sealing performance. Three compact and small seal edges ensure perfect fluid control and concentrate load against the dynamic surface. The cavities between the external seal edges keep small quantities of fluid reducing friction and wear. The special geometry of static side guarantees a wide contact area and prevents distortion inside the groove during installation.

• Two internal anti-extrusion rings with stabilizers to avoid the rotation of the rubber element. A special geometry of grooves assures that pressure loads the energizing seal element without any risk of extrusion of it.

• Two backup rings which offset large gaps or structural deflections without extrusion and assure high longevity.

• Good sealing performance as well as at low pressure
• Simple one-part piston design
• High resistance against extrusion
• Perfect fluid control
• Good mechanical stability at high temperature
• Easy installation without expensive auxiliaries
• Good temperature resistance
• Easy installation on a solid piston