API Octagonal RING JOINT GASKETS
Materials
· Standard: soft iron. low carbon steel, 304,347,316,304L,316L
· Non-standard: high nickel alloys, super alloy steels, and additional stainless steels.
SUNWELL Ring Joint gaskets are manufactured in accordance with API-6A and ASME B16.20 specifications and come in four basic profiles:
API R-Octagonal - Ring Gasket
Style R octagonal ring joint gaskets are manufactured in accordance with both API 6A and ASME B16.20 size/ratings. Available in both oval and octagonal configurations, both types are interchangeable on modern octagonal type grooved flanges.
Style R Ring Joint gaskets can be manufactured in accordance with all relevant standards to suit the following flange designations: API- 6A, ASME/ANSI B16.5, MSS SP44 (ASME B 16.47 Series A) & BS 1560.
Tolerances: (Inches)
Width of Ring .......................................±0.008
Height of Ring ......................................±0.020
Pitch Diameter ......................................±0.007
Angle of 23° ......................±1/2°
The hardness of the ring should always be less than the hardness of the flanges to prevent flange deformation. Dimensions for API ring joint gaskets and grooves are covered in ASME B16.20 and API6A
More Information,pls feel free to contact us.
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