The Parker Prädifa V1 Ultrathan® O-ring is an alternative to conventional rubber elastomer O-rings. Due to the extrusion resistance of the polyurethane compounds, there is no need to use a back-up ring at higher or pulsating pressures. By eliminating the need for back-up rings the required width of the groove is reduced.
Due to its high wear resistance, a polyurethane O-ring is also suitable for dynamic pneumatics applications. Very good results have been achieved, for instance, in pneumatic valves for sealing pilot and main control pistons.

Special Features:
• Robust seal profile for harshest operating conditions.
• Extreme wear resistance.
• Suitable for fully automatic installation
• Insensitive to pressure peaks.
• High extrusion resistance.
• Excellent media resistance in case of suitable compound selection.
• Suitable compounds available for special requirements of the chemical process industry.
• Suitable compounds available for special requirements of the food processing industry.
• Installation in closed and undercut housings.
• Can be used in existing O-ring grooves.
• Further dimensions of machined series with short lead times available.

Range of Application:
V1 Ultrathan® O-rings are used when the physical properties of other compounds are insufficient.
Mainly for the sealing of cylinders, controls and valves.