The RULON Lip Seal For Oil and Gas Pump Valves can be seen in many pump valves of refueling and filling stations. As the application of high-speed rotating (maximum speed of 5000rpm), it has high requirements for wear resistance for the seals. The main body is made of tetrafluoroethylene+ rubber O-ring + stainless steel spring. The temperature range is -50~150. When rotating at high speed, the portion temperature will reach above 200° and the pressure is within 5MPA