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R & RX Series
    




R OvalR OctagonalRX



 Materials
 Stainless Steel 304
-200°C
to
460°C
 Stainless Steel 316
-200°C
to
420°C
 Low Carbon Steel
-100°C
to
500°C
 Soft Iron
-100°C
to
500°C

*Stainless Steel 316 and 304 can exceed continuous operating temperatures (Up to 760C), however this will result in inter-granular corrosion. Please consult a Hi-Tech Gasket representative.



R series

R Series ring type joint gaskets are available in oval and octagonal designs. The oval design can be used in older round bottom gland designs, while both can be used in a flat bottom design. R Series are available up to 5,000 PSI.

RX Series

RX series are interchangable with R series octagonal gaskets designed for API 6B flanges. RX out perform R series in situations that have higher pressures with more intense vibrations. RX gaskets are available up to 5,000 PSI.



Part Numbers

Model R & RX

Pipe Size
150
Ring Number at Pressure Rating (lbs)
300
400
600
900
1500
2500
1/2"
-
R11
-
R11
-
R12
R13
3/4"
-
R13
-
R13
-
R14
R16
1"
R15
R16
-
R16
-
R16
R18
1-1/4"
R17
R18
-
R18
-
R18
R21
1-1/2"
R19
R/RX20
-
R/RX20
-
R/RX20
R/RX23
2"
R22
R/RX23
-
R/RX23
-
R/RX24
R/RX26
2-1/2"
R/RX25
R/RX26
-
R/RX26
-
R/RX27
R28
3"
R29
R/RX31
-
R/RX31
R/RX31
R/RX35
R32
3-1/2"
R33
R34
-
R34
-
-
-
4"
R36
R/RX37
R/RX37
R/RX37
R/RX37
R/RX39
R38
5"
R40
R/RX41
R/RX41
R/RX41
R/RX41
R/RX44
R42
6"
R43
R/RX45
R/RX45
R/RX45
R/RX45
R/RX46
R/RX47
8"
R48
R/RX49
R/RX49
R/RX49
R/RX49
R/RX50
R51
10"
R52
R/RX53
R/RX53
R/RX53
R/RX53
R/RX54
R55
12"
R56
R/RX57
R/RX57
R/RX57
R/RX57
R58
R60
14"
R59
R61
R61
R61
R62
R/RX63
-
16"
R64
R/RX65
R/RX65
R/RX65
R/RX66
R67
-
18"
R68
R/RX69
R/RX69
R/RX69
R/RX70
R71
-
20"
R72
R/RX73
R/RX73
R/RX73
R/RX74
R75
-
24"
R76
R77
R77
R77
R78
R79
-
Model R & RX (For flanges in accordance with
API spec 6A, model 6B)

Pipe Size
Ring Number at Pressure Rating (lbs)
2000
3000
5000
2-1/6"
R/RX23
R/RX24
R/RX24
2-9/16"
R/RX26
R/RX27
R/RX27
3-1/8"
R/RX31
R/RX31
R/RX35
4-1/16"
R/RX37
R/RX37
R/RX39
5-1/8"
R/RX41
R/RX41
R/RX44
7-1/16"
R/RX45
R/RX45
R/RX46
9"
R/RX49
R/RX49
R/RX50
11"
R/RX53
R/RX53
R/RX54
13-5/8"
R/RX57
R/RX57
-
16-3/4"
R/RX65
R/RX66
-
20-3/4"
-
R/RX74
-
21-1/4"
R/RX73
-
-


Model R & RX (For flanges in accordance with
ASME B16.47 series A (MSS-SP44))

Pipe Size
Ring # at Pressure Rating (lbs)
300-600
900
26"
R93
R100
28"
R94
R101
30"
R95
R102
32"
R96
R103
34"
R97
R104
36"
R98
R105