THE METALLIC RING TYPE JOINT IS USED IN THE PETROLEUM INDUSTRY, WHERE HIGH PRESSURE APPLICATIONS NECESSITATE THE NEED FOR A HIGH INTEGRITY SEAL.
STYLE R
Surface finish of the Style R Ring Type Joint sealing faces (radiused ends of an Oval and the 23° angled faces of an Octagonal shape) shall not be greater than 1.6 μm Ra / 63 μin RMS. Flexitallic Style R Ring Type Joints can be manufactured in accordance with all relevant standards to suit the following flange designations: API 6A ASME B16.5 ASME B16.47 SERIES A BS1560
STYLE RX
The Style RX is an adaptation of the standard Style R which is energised when the assembly is pressurised. The RX is designed to fit the same groove design as a standard Style R, making the joints interchangeable, however consideration should be given to the difference in finished make up distance. The geometry of this modified design induces a pressure energising effect when the assembly is pressurised, improving the efficiency of the seal.
STYLE BX
The Style BX energized Ring Type Joints, manufactured in accordance with ASME B16.20, API 6A and API 17D, are designed for use on API 6BX flanges on pressure systems rated up to 20,000 psi. When correctly fitted, the style BX gasket allows virtual face to face contact of the flange faces which means that the gasket is fully confined on both the inner and outer diameters. All BX gaskets incorporate a pressure balance hole to ensure equalization of pressure which may be generated in the grooves.
