Product Name: Oct & Oval Ring Jonit Gasket High Quality Model NO.: SUNWELL800/810 Standard: Standard, Nonstandard Shape: O-Ring Performance: High Pressure Application: Flange Seal Material: Ss304, Ss316, Ss316L, CS, Soft Iron Style: Oct/Ova/Rx/Bx Size: 1/2"-60" Product: Ring Joint Gasket Standard.: API/ASME Trademark: SUNWELL Transport Package: Wooden Case Specification: Standard, API, ASME Origin: Ningbo HS Code: 84841000 Product Description IntroductionNINGBO SUNWELL SEALING MATERIALS CO.,LTD is one of the biggest sealing and heat preservation products manufacturers in China. SUNWELL is a professional manufacturer engaged in the research, development, production, sale and service of metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets, Sealing Equipments, Insulation Products, Hydraulic Sealing products, etc.SUNWELL is located in Cixi,Ningbo,China. And have convenient transportation access. Dedicated to strict quality control and thoughtful customer service. Our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In recent years, our company has introduced a series of advanced equipment, including fully automatic spiraling machine, CNC machines, double jacketed machine, full range of sheeting machines. In addition, we have attained ISO9001:2008 certificate.The ring type joint was initially developed for high pressure and temperature applications found in the petroleum industry and is primarily used in the oil field on drilling and completion equipments. However, today this product range can also be found on valves and pipework assemblies, along with some high integrity pressure vessel joints.Tolerances (Inches)> "A" Width of ring: +/-0.008> "B" "H" Height of ring: +/-0.020> "P" Average pitch diameter of ring: +/-0.007> "23o" Angle: +/- 1/2oStandardStandard style R ring type joints are manufactured in accordance with both API 6A and ASME B16.20 size and ratings. Available in both oval and octagonal configurations, both types are interchangeable on the modern octagonal type grooved flanges.As with all metal ring type joints including style R, it is recommended to replace the ring when flange connection is broken.More information of ring joint gasket, please feel free to contact SUNWELL.