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Dynamic seals are used in applications with motion between the hardware component and the sealing solution. The motion can be rotary, translatory, reciprocating or oscillating. Effective dynamic seals need to maintain a balance between the sealing force, minimize the friction and furthermore prevent leakage.
Valve Stem Seals Control Leak Rate
Freudenberg Sealing Technologies Valve Stem Seals Offer Premium Service Capabilities
Freudenberg sealing technologies valve stem seals control leak rate for the life of the engine to assure correct guide lubrication while avoiding excessive oil consumption. They are produced from high performance materials which lead to increased lifetime and lower wear. They are also supplied in a variety of geometries to satisfy different assembly needs.
Guide Bands for the Processing Industry
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Gas-lip allows lubrication against back-pressure and allows also the oil lip to work in a pressure stable zone. The advantage of the double-lip seal is that the design is studied to decouple the valve stem seal function: oil metering and blow-by control.
It assures flexibility while keeping the adequate robustness of the gas-lip.
Rod guide rings, made of fabric-based laminate with chamfered profile edges. Also suited to standardized installation spaces in accordance with ISO 19766.
The VA09 type are VA03 with an integrated flange at the bottom that replaces the separated spring washer normally fit separately. That allows reducing the number of components in valve train system & assembly. Valve spring assures constant correct positioning of the VSS (avoiding pop off issues).