Moulded Rubber Made O Ring is a simple and versatile ring-shaped packing or sealing device with a circular cross section. The O Ring has opposite side squeezed between the walls of the cavity or gland into which the ring is installed. The O Ring has the feature of zero clearance within the gland that provides an effective sealing and blocking the flow of liquids, and gases through the glands and has internal pressure dynamic and static. The Moulded Rubber Made O Ring is designed to perform in a wide range of applications with varying chemical exposures, pressures and temperatures.