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Winding Pipes Under 24"
    









Part Numbers
 Winding Materials
 Temp. Range
 Stainless Steel 304
-200°C
to
420°C
 Stainless Steel 316L
-200°C
to
460°C
 Filler Materials
 Graphite
Up
to
460°C
 PTFE
Up
to
500°C
 Centering Ring
 Carbon Steel
Up
to
538°C
 Inner Ring Materials
 Stainless Steel 304
-200°C
to
420°C
 Stainless Steel 316
-200°C
to
460°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 intergranular corrosion. For more information, please consult a Hi-Tech Seals representative.
ASME B16.5 & BS 1560 Flanges

Nominal
Pipe Size
Male and Female
Large Tongue Groove
Small Tongue & Groove
Sealing Element
150-1500
Sealing Element
Class 2500
Sealing Element
Class 150-2500
Sealing Element
150-2500
I.D.
O.D.
I.D.
O.D.
I.D.
O.D.
I.D.
O.D.
1/4
1/2
1
–
–
1/2
1
–
–
1/2
1
1 - 3/8
13/16
1 - 3/8
1
1 - 3/8
1
1 - 3/8
3/4
1 - 5/16
1 - 11/16
1 - 1/16
1 - 11/16
1 - 5/16
1 - 11/16
1 - 5/16
1 - 11/16
1
1 - 1/2
2
1 - 1/4
2
1 - 1/2
2
1 - 1/2
1 - 7/8
1 - 1/4
1 - 7/8
2 - 1/2
1 - 5/8
2 - 1/2
1 - 7/8
2 - 1/2
1 - 7/8
2 - 1/4
1 - 1/2
2 - 1/8
2 - 7/8
1 - 7/8
2 - 7/8
2 - 1/8
2 - 7/8
2 - 1/8
2 - 1/2
2
2 - 7/8
3 - 5/8
2 - 3/8
3 - 5/8
2 - 7/8
3 - 5/8
2 - 7/8
3 - 1/4
2 - 1/2
3 - 3/8
4 - 1/8
3
4 - 1/8
3 - 3/8
4 - 1/8
3 - 3/8
3 - 3/4
3
4 - 1/4
5
3 - 3/4
5
4 - 1/8
5
4 - 1/4
4 - 5/8
3 - 1/2
4 - 3/4
5 - 1/2
–
–
4 - 3/4
5 - 1/2
4 - 3/4
5 - 1/8
4
5 - 3/16
6 - 3/16
4 - 3/4
6 - 3/16
5 - 3/16
6 - 3/16
5 - 3/16
5 - 11/16
4 - 1/2
5 - 11/16
6 - 3/4
–
–
5 - 11/16
6 - 3/4
–
–
5
6 - 5/16
7 - 5/16
5 - 3/4
7 - 5/16
6 - 5/16
7 - 5/16
6 - 5/16
6 - 13/16
6
7 - 1/2
8 - 1/2
6 - 3/4
8 - 1/2
7 - 1/2
8 - 1/2
7 - 1/2
8
8
9 - 3/8
10 - 5/8
8 - 3/4
10 - 5/8
9 - 3/8
10 - 5/8
9 - 3/8
10
10
11 - 1/4
12 - 3/4
10 - 3/4
12 - 3/4
11 - 1/4
12 - 3/4
11 - 1/4
12
12
13 - 1/2
15
13
15
13 - 1/2
15
13 - 1/2
14 - 1/4
14
14 - 3/4
16 - 1/4
–
–
14 - 3/4
16 - 1/4
14 - 3/4
15 - 1/2
16
17
18 - 1/2
–
–
17
18 - 1/2
16 - 3/4
17 - 5/8
18
19 - 1/4
21
–
–
19 - 1/4
21
19 - 1/4
20 - 1/8
20
21
23
–
–
21
23
21
22
24
25 - 1/4
27 - 1/4
–
–
25 - 1/4
27 - 1/4
25 - 1/4
26 - 1/4

Large Tongue & Groove Flanges:

  • 1/2 size in Class 150, 300, 400, 600, 900, 1500 and 2500 are interchangeable

Male & Female and Large Tongue & Groove Flanges:

  • Class 300, 400, 600 gaskets are interchangeable within their size category
  • Class 900 and 1500 gaskets are interchangeable within their size category
  • 1/4 size in 150 class are interchangeable

Small Tongue and Groove Flanges:

  • Classes 300 thru 2500 are interchangeable within their specific size category
  • 3/4 size are interchangeable with Large Male & Female and Large Tongue and Groove gaskets within their specific pressure rating
  • 1/2 size are interchangeable within Large Male & Female and Large Tongue and Groove gaskets within their specific pressure rating