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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
 Bokure™ Urethane
-30°C
to
110°C

* Stainless steel 316 and 304 can exceed their continuous operating temperatures, up to 760°C, for short-term intervals. However, this may result in inter‒granular corrosion. For more information, please consult a Hi-Tech Seals 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 operate up to 10,000 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
R12
R13
3/4
–
R13
–
R13
R14
R14
R16
1
R15
R16
–
R16
R16
R16
R18
1 - 1/4
R17
R18
–
R18
R18
R18
R21
1 - 1/2
R19
R/RX20
–
R/RX20
R/RX20
R/RX20
R/RX23
2
R22
R/RX23
–
R/RX23
R/RX24
R/RX24
R/RX26
2 - 1/2
R/RX25
R/RX26
–
R/RX26
R/RX27
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 Class 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 Class Rating (lbs)
300-600
900
26
R93
R100
28
R94
R101
30
R95
R102
32
R96
R103
34
R97
R104
36
R98
R105