Style R

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Standard Style R 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.

DAN-LOC 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 16.47 SERIES A )
BS 1560

Tolerances: ( Inches)

A Width of Ring .........................................+/- 0.008

B, H Height of Ring ........................................+/- 0.020

P (Average Pitch Diameter of Ring ) .......+/- 0.007

23° (Angle)......................................................+/-1/2°




Note: When Ordering, please specify Ring No. ( or Nominal Size / Pressure Class ) and Material.



Ring

No.

PRESSURE CLASS RATINGS

  Pitch

Height of Ring

 Approx. Distance Between

Gasket Weights, lbs.

ANSI, BS & MSS

API (psi )

 Diameter Width
150 300/600 900 1500 2500 2000/3000 5000 of Ring of Ring

Oval

Octagonal

Oval

Octagonal

Nominal Pipe Size

 P A B H Flanges Rings Rings
R11

-

 ½ - - - - - 1.344 0.250 0.44 0.38 - .111 .104
R12 - - ½ ½ - - - 1.563 0.313 0.56 0.50 - .216 .200
R13 - ¾ - - ½ - - 1.688 0.313 0.56 0.50 - .234 .216
R14 - - ¾ ¾ - - - 1.750 0.313 0.56 0.50 - .242 .224
R15 1 - - - - - - 1.875 0.313 0.56 0.50 - .260 .240
R16 - 1 1 1 ¾ - - 2.000 0.313 0.56 0.50 - .278 .256
R17 1¼ - - - - - - 2.250 0.313 0.56 0.50 - .311 .288
R18 - 1¼ 1¼ 1¼ 1 - - 2.375 0.313 0.56 0.50 - .328 .304
R19 1 1/2 - - - - - - 2.563 0.313 0.56 0.50 - .354 .328
 R20* - 1 1/2 1 1/2 1 1/2 - - - 2.688 0.313 0.56 0.50 0.16 .372 .344
R21 - - - - 1¼ - - 2.844 0.438 0.69 0.63 - .660 .643
R22 2 - - - - - - 3.250 0.313 0.56 0.50 - .450 .415
 R23* - 2 - - 1½ 2 1/16** - 3.250 0.438 0.69 0.63 0.19 .755 .734
 R24* - - 2 2 - 2 1/16 2 3.750 0.438 0.69 0.63 0.19 .870 .846
R25 2½ - - - - - - 4.000 0.313 0.56 0.50 - .553 .510
 R26* - 2½ - - - 2 9/16 - 4.000 0.438 0.69 0.63 0.19 .930 .904
 R27* - - 2½ 2½ - ( 2 9/16) 2 9/16 4.250 0.438 0.69 0.63 0.19 1.050 .960
R28 - - - - 2½ - - 4.375 0.500 0.75 0.69 - 1.255 1.230
R29 3 - - - - - - 4.500 0.313 0.56 0.50 - .622 .575
R30 - 3 - - - - - 4.625 0.438 0.69 0.63 - 1.075 1.047
 R31* - 3 3 - - 3 1/8 - 4.875 0.438 0.69 0.63 0.19 1.130 1.100
R32 - - - - 3 - - 5.000 0.500 0.75 0.69 - 1.435 1.405
R33 3½ - - - - - - 5.188 0.313 0.56 0.50 - .718 .664
R34 - 3½ - - - - - 5.188 0.438 0.69 0.63 - 1.200 1.170
 R35* - - - 3 - - 3 1/8 5.375 0.438 0.69 0.63 0.19 1.250 1.210
R36 4 - - - - - - 5.875 0.313 0.56 0.50 - .813 .735
 R37* - 4 4 - - 4 1/16 - 5.875 0.438 0.69 0.63 0.19 1.360 1.330
R38 - - - - 4 - - 6.188 0.625 0.88 0.81 - 2.56 2.52
 R39* - - - 4 - - 4 1/16 6.375 0.438 0.69 0.63 0.19 1.480 1.440
R40 5 - - - - - - 6.750 0.313 0.56 0.50 - .935 .865
 R41* - 5 5 - - - - 7.125 0.438 0.69 0.63 0.19 1.66 1.61
R42 - - - - 5 - - 7.500 0.750 1.00 0.94 - 4.21 4.16
R43 - - - - - - - 7.625 0.313 0.56 0.50 - 1.055 .975
 R44* - - - 5 - - - 7.625 0.438 0.69 0.63 0.19 1.77 1.73
 R45* - 6 6 - - 7 1/16 - 8.313 0.438 0.69 0.63 0.19 1.93 1.88
 R46* - - - 6 - - 7 1/16 8.313 0.500 0.75 0.69 0.13 2.39 2.33
 R47* - - - - 6 - - 9.000 0.750 1.00 0.94 0.16 5.06 4.99
R48 8 - - - - - - 9.750 0.313 0.56 0.50 - 1.350 1.240
 R49* - 8 8 - - 9 - 10.625 0.438 0.69 0.63 0.19 2.47 2.40
 R50* - - - 8 - - 9 10.625 0.625 0.88 0.81 0.16 4.40 4.32
R51 - - - - 8 - - 11.000 0.875 1.13 1.06 - 8.05 8.17
R52 10 - - - - - - 12.000 0.313 0.56 0.50 - 1.66 1.53
 R53* - 10 10 - - 11 - 12.750 0.438 0.69 0.63 0.19 3.00 2.88
R54 - - - 10 - - 11 12.750 0.625 0.88 0.81 0.16 5.29 5.18
R55 - - - - 10 - - 13.500 1.125 1.44 1.38 - 16.23 17.04
R56 12 - - - - - - 15.000 0.313 0.56 0.69 - 2.07 1.92
 R57* - 12 12 - - 13 5/8 - 15.000 0.438 0.69 0.63 0.19 3.48 3.38


Ring

No.

PRESSURE CLASS RATINGS

  Pitch

Height of Ring

 Approx. Distance Between

Gasket Weights, lbs.

ANSI, BS & MSS

API (psi )

 Diameter Width
150 300/600 900 1500 2500 2000/3000 5000 of Ring of Ring

Oval

Octagonal

Oval

Octagonal

Nominal Pipe Size

 P A B H Flanges Rings Rings
R58 - - - 12 - - - 15.000 0.875 1.13 1.06 - 11.00 11.13
R59 14 - - - - - - 15.265 0.313 0.56 0.50 - 2.16 2.00
R60 - - - - 12 - - 16.000 1.250 1.56 1.50 - 23.10 23.50
R61 - 14 - - - - - 16.500 0.438 0.69 0.63 - 3.83 3.73
R62 - - 14 - - - - 16.500 0.625 0.88 0.81 - 6.84 6.71
R63* - - - 14 - - - 16.500 1.000 1.31 1.25 0.22 16.20 16.67
R64 16 - - - - - - 17.875 0.313 0.56 0.50 - 2.47 2.29
R65* - 16 - - - 16¾** - 18.500 0.438 0.69 0.63 0.19 4.30 4.18
R66* - - 16 - - ( 16 ) - 18.500 0.625 0.88 0.81 0.16 7.67 7.53
R67 - - - 16 - - - 18.500 1.125 1.44 1.38 - 22.30 23.40
R68 18 - - - - - - 20.375 0.313 0.56 0.50 - 2.82 2.60
R69* - 18 - - - - - 21.000 0.438 0.69 0.63 0.19 4.87 4.74
R70* - - 18 - - ( 18 ) - 21.000 0.750 1.00 0.94 0.19 11.80 11.64
R71 - - - 18 - - - 21.000 1.125 1.44 1.38 - 25.20 26.50
R72 20 - - - - - - 22.000 0.313 0.56 0.50 - 3.04 2.81
R73* - 20 - - - 21 ¼** - 23.000 0.500 0.75 0.69 0.13 6.60 6.47
R74* - - 20 - - ( 20¾ ) - 23.000 0.750 1.00 0.94 0.19 12.95 12.75
R75 - - - 20 - - - 23.000 1.250 1.56 1.50 - 33.30 35.30
R76 24 - - - - - - 26.500 0.313 0.56 0.50 - 3.66 3.38
R77 - 24 - - - - - 27.250 0.625 0.88 0.81 - 11.30 11.10
R78 - - 24 - - - - 27.250 1.000 1.31 1.25 - 27.10 27.58
R79 - - - 24 - - - 27.250 1.375 1.75 1.63 0.19 48.7 49.75
R80 22 - - - - - - 24.250 0.313 - 0.50 - - 3.11
R81 - 22 - - - - - 25.000 0.563 - 0.75 - - 8.55
R82* - - - - - - - 2.250 0.438 - 0.63 0.19 - .508
R84* - - - - - - - 2.500 0.438 - 0.63 0.19 - .564
R85* - - - - - - - 3.125 0.500 - 0.69 0.13 - .978
R86* - - - - - - - 3.563 0.625 - 0.81 0.16 - 1.447
R87* - - - - - - - 3.938 0.625 - 0.81 0.16 - 1.597
R88* - - - - - - - 4.875 0.750 - 0.94 0.19 - 2.735
R89* - - - - - - - 4.500 0.750 - 0.94 0.19 - 2.528
R90* - - - - - - - 6.125 0.875 - 1.06 0.19 - 4.55
R91* - - - - - - - 10.250 1.250 - 1.50 0.19 - 15.05
R92 - - - - - - - 9.000 0.438 0.69 0.63 0.16 2.07 2.02
R93 - 26 - - - - - 29.500 0.750 - 0.94 - - 16.33
R94 - 28 - - - - - 31.500 0.750 - 0.94 - - 17.44
R95 - 30 - - - - - 33.750 0.750 - 0.94 - - 18.69
R96 - 32 - - - - - 36.000 0.875 - 1.06 - - 26.65
R97 - 34 - - - - - 38.000 0.875 - 1.06 - - 28.13
R98 - 36 - - - - - 40.125 0.875 - 1.06 - - 29.79
R99* - - - - - - - 9.250 0.438 - 0.63 0.19 - 2.08
R100 - - 26 - - - - 29.500 1.125 - 1.38 -

R100 through R105 information available on request
R101 - - 28 - - - - 31.500 1.250 - 1.50 -
R102 - - 30 - - - - 33.750 1.250 - 1.50 -
R103 - - 32 - - - - 36.000 1.250 - 1.50 -
R104 - - 34 - - - - 38.000 1.375 - 1.63 -
R105 - - 36 - - - - 40.250 1.375 - 1.63 -  


( * ) Denotes ring number specified in API 6A.
Nominal Pipe Sizes marked ( ** ) apply to class rating 2000 only.
Nominal Pipe Sizes in brackets apply to class rating 3000 only.
Ring no. R30 is suitable for lapped flanges only.


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