Product Name: OK Seal Model NO.: OK Standard: Standard Style: Mechanical Seal Material: POM/NBR Shape (for Gasket): Ring Gasket Function: Hole Sealing Application: Hydroseal Product Description OK profile is a bi-directional piston seal designed for heavy duty hydraulic application.Advantages:-Low friction;-Superior sealing effect in high pressure;-Easy onto a solid piston without tools;-It will resist shock loads, wear, comtamination and will resisi extrusion or chipping.Operating conditions-Pressure: ≤ 500bar;-Temperature: -30~+110° C;-Speed: ≤ 1.0m/s.Material-Material: POM/NBR;-Hardness: NBR-75 Shore AGood Quality, Competitive Price.Welcome to contact us for detail information.