Type UHS is a U-shaped seal with a smaller cross-section for quick compressing of the groove. Application range: Piston Sealing working pressure: ≤31.5MPa Working temperature: -20℃~+80℃ Reciprocating speed: ≤1m/s medium: General purpose petroleum based hydraulic oil, water, emulsion. Install: To avoid damage to the sealing lip, measures should be taken to avoid sharp edges when Polyurethane Seals are installed. Material: KVK polyurethane material with a hardness of 90 degrees Order example: UHS-50 or UHS 50 60 6