R Series Ring Joint Gasket

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Style R Gasket :

  • Standard Style R Joint gaskets are manufactured in accordance with both
    API 6A and ASME B16.20 size/ratings.
  • Style R Ring Joint gaskets are manufactured in accordance with all relevant standards to suit the following flange designations :
    • API 6A > ASME / ANSI B16.5 > MSS SP44 ( ASME 16.47 SERIES A )
    • BS

Material Carbon Steel
Shape Round
Thickness 10-20mm
Application Fittings
Color Silver
Condition New

Graph

Technical Specifications

Ring No. Pressure Class Ratings Pitch Height of Ring Approx Distance Between
ANSI, BS & MSS API (psi )API (psi ) Diameter of Ring Width of Ring
150 300/600 900 1500 2500 2000/3000 5000 Oval
Nominal Pipe Size P A H Flanges
R12 – – 1/2 1/2 – – – 1.563 0.313 0.56 –
R16* – 1 1 1 3\4 – – 2 0.313 0.56 –
R18* – 1 1/4 1 1/4 1 1/4 1 – – 2.375 0.313 0.56 –
R20* – 1 1/2 1 1/2 1 1/2 – – – 2.688 0.313 0.56 0.16
R23* – 2 – 1 1/2 2 1/16 – 3.25 0.438 0.69 0.16
R24* – – 2 2 – 2 1/16 2 3.75 0.438 0.69 0.16
R26* – 2 1/2 – – – 2 9/16 – 4 0.438 0.69 0.16
R27 – – 2 1/2 2 1/2 – -2 9/16 2 9/16 4.25 0.438 0.69 0.16
R31* – 3 3 – – 3 1/18 – 4.875 0.438 0.69 0.16
R32 – – – – 3 – – 5 0.5 0.75 –
R35* – – – 3 – – 3 1/8 5.375 0.438 0.69 0.16
R37* – 4 4 – – 4 1/16 – 5.875 0.438 0.69 0.16
R38 – – – – 4 – – 6.188 6.375 0.88 –
R39* – – – 4 – – 4 1/16 6.375 0.438 0.69 0.16
R45* – 6 6 – – 7 1/16 – 8.313 0.438 0.69 0.16
R46 – – – 6 – – 7 1/16 8.313 0.5 0.75 0.13
R49* – 8 8 – – 9 – 10.625 0.438 0.69 0.19
R50 – – – 8 – – 9 10.625 0.625 0.88 0.16
R53 – 10 10 – – 11 – 12.75 0.438 0.69 0.19
R54 – – – 10 – – 11 12.75 0.625 0.88 0.16
R57 – 12 12 – – 13 5/18 – 15 0.438 0.69 0.19
R58 – – – 12 – – – 15 0.875 1.13 –
R65 – 16 – – – 16 3/4 – 18.5 0.438 0.69 0.19
R66 – – 16 – – -16 – 18.5 0.625 0.88 0.16
R69 – 18 – – – – – 21 0.438 0.69 0.19
R73 – 20 – – – 21 1/4 – 23 0.5 0.75 0.13

* Available in stainless steel