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Star 21 International Pte Ltd No.48 Toh Guan Road East #09-99 Enterprise Hub Singapore 608586 Tel : +65 6567 0972 Fax : +65 6567 0629  |
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API Approved Ring Joint Gaskets Style : 320 API Ring Joint Gaskets come in two basic types an oval cross section and octagonal cross section. These basic shapes are used in pressures up to 10,000 psi. The dimensions are standardized and require sepcially grooved flanges. The octagonal cross section has a higher sealing efficiency than the oval and would be the preferred gasket. However, only the oval cross section can be used in the old type round bottom groove.
Manufactured in latest CNC Machine from solid material only. Material : R - (Oct. & Oval), RX & BX series manufactured to API 6A STD.
Delta Ring, Lens Ring, Double Cone, Bridgeman Ring, Round Ring, & Etc.
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The newer flat bottom groove design will accept either the oval or the octagonal cross section. The sealing surfaces on the ring joint grooves must be smoothly finished to 63 microinches and be free of objectionable ridges, tool or chatter marks. They seal by an initial line contact or a wedging action as the compressive forces are applied. The hardness of the ring should always be less than the hardness of the flanges. Dimensions for API ring joint gaskets and grooves are covered in ANSI B 16.20 and API 6A.
