Ansi 150 Flange and 300# Full Face Flanged Gaskets
Full Faced Flange Gaskets are great for more industrial applications
These gaskets are suitable for service with ANSI 150# rated flanged connections. Also available with ANSI 300# rated flanged connections.
- Dimensions per ANSI B16.5 standard for pipe flanges and gaskets.
- Dimensional Tolerances (unless otherwise stated) through 1″ @ +/- 1/32″, from 1″ through 12″ @ +/- 1/16″, from 12″ through 24″ @+/- 3/32″, and over 24″ @ +/- 1/4″.
- “New Style” Flange Gasket dimensions are listed, but “Old Style” are also available. The only difference is that “New Style” have a slightly enlarged ID on 12″ and below so as not to obstruct flow when compressed (bolt holes/circles unaffected).
- Standard Pipe Flange Gaskets are SBR Rubber (a.k.a. Red Rubber), but Neoprene, EPDM, Buna N, Silicone, Viton (Fluoroelastomer), and other rubber compounds are also available upon request.
- Gasket thicknesses between 1/16″ and 1/8″ are readily available in most materials; standard hardness options include 40 through 80 durometer (Shore A).
| Full Face Flange Gaskets | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 125-150 LB | 250-300 LB | |||||||||
| Flange Size | OD | ID | Holes | Hole Dia. | Bolt Circle Dia. | OD | ID | Holes | Hole Dia. | Bolt Circle Dia. |
| 1/2″ | 3 1/2 | 27/32 | 4 | 5/8 | 2 3/8 | 3 3/4 | 27/32 | 4 | 5/8 | 2 5/8 |
| 3/4″ | 3 7/8 | 1 1/16 | 4 | 5/8 | 2 3/4 | 4 5/8 | 1 1/16 | 4 | 3/4 | 3 1/4 |
| 1″ | 4 1/4 | 1 5/16 | 4 | 5/8 | 3 1/8 | 4 7/8 | 1 5/16 | 4 | 3/4 | 3 1/2 |
| 1 1/4″ | 4 5/8 | 1 21/32 | 4 | 5/8 | 3 1/2 | 5 1/4 | 1 21/32 | 4 | 3/4 | 3 7/8 |
| 1 1/2″ | 5 | 1 29/32 | 4 | 5/8 | 3 7/8 | 6 1/8 | 1 29/32 | 4 | 3/4 | 4 1/2 |
| 2″ | 6 | 2 3/8 | 4 | 3/4 | 4 3/4 | 6 1/2 | 2 3/8 | 8 | 7/8 | 5 |
| 2 1/2″ | 7 | 2 7/8 | 4 | 3/4 | 5 1/2 | 7 1/2 | 2 7/8 | 8 | 7/8 | 5 7/8 |
| 3″ | 7 1/2 | 3 1/2 | 4 | 3/4 | 6 | 8 1/4 | 3 1/2 | 8 | 7/8 | 6 5/8 |
| 3 1/2″ | 8 1/2 | 4 | 8 | 3/4 | 7 | 9 | 4 | 8 | 7/8 | 7 1/4 |
| 4″ | 9 | 4 1/2 | 8 | 3/4 | 7 1/2 | 10 | 4 1/2 | 8 | 7/8 | 7 7/8 |
| 4 1/2″ | 9 1/4 | 5 | 8 | 3/4 | 7 3/4 | 10 1/2 | 5 | 8 | 7/8 | 8 1/2 |
| 5″ | 10 | 5 9/16 | 8 | 7/8 | 8 1/2 | 11 | 5 9/16 | 8 | 7/8 | 9 1/4 |
| 6″ | 11 | 6 5/8 | 8 | 7/8 | 9 1/2 | 12 1/2 | 6 5/8 | 12 | 7/8 | 10 5/8 |
| 7″ | 12 1/2 | 7 5/8 | 8 | 7/8 | 10 3/4 | 14 | 7 5/8 | 12 | 7/8 | 11 7/8 |
| 8″ | 13 1/2 | 8 5/8 | 8 | 7/8 | 11 3/4 | 15 | 8 5/8 | 12 | 1 | 13 |
| 9″ | 15 | 9 5/8 | 12 | 7/8 | 13 1/4 | 16 1/4 | 9 5/8 | 12 | 1 | 14 |
| 10″ | 16 | 10 3/4 | 12 | 1 | 14 1/4 | 17 1/2 | 10 3/4 | 16 | 1 1/8 | 15 1/4 |
| 12″ | 19 | 12 3/4 | 12 | 1 | 17 | 20 1/2 | 12 3/4 | 16 | 1 1/4 | 17 3 4 |
| 14″ | 21 | 14 | 12 | 1 1/8 | 18 3/4 | 23 | 14 | 20 | 1 1/4 | 20 1/4 |
| 15″ | 22 1/4 | 15 | 16 | 1 1/8 | 20 | |||||
| 16″ | 23 1/2 | 16 | 16 | 1 1/8 | 21 1/4 | 25 1/2 | 16 | 20 | 1 3/8 | 22 1/2 |
| 18″ | 25 | 18 | 16 | 1 1/4 | 22 3/4 | 28 | 18 | 24 | 1 3/8 | 24 3/4 |
| 20″ | 27 1/2 | 20 | 20 | 1 1/4 | 25 | 30 1/2 | 20 | 24 | 1 3/8 | 27 |
| 22″ | 29 1/2 | 22 | 20 | 1 1/4 | 27 1/4 | 33 | 22 | 24 | 1 3/8 | 29 1/4 |
| 24″ | 32 | 24 | 20 | 1 3/8 | 29 1/2 | 36 | 24 | 24 | 1 5/8 | 32 |
| 26″ | 34 3/4 | 26 | 24 | 1 3/8 | 31 3/4 | 38 1/4 | 26 | 28 | 1 5/8 | 34 1/2 |
| 28″ | 36 1/2 | 28 | 26 | 1 3/8 | 34 | 40 3/4 | 28 | 28 | 1 5/8 | 37 |
| 30″ | 38 3/4 | 30 | 28 | 1 3/8 | 36 | 43 | 30 | 28 | 1 7/8 | 39 1/4 |
| 32″ | 41 3/4 | 32 | 28 | 1 5/8 | 38 1/2 | 45 1/4 | 32 | 28 | 1 7/8 | 41 1/2 |
| 34″ | 43 3/4 | 34 | 32 | 1 5/8 | 40 1/2 | 47 1/2 | 34 | 28 | 1 7/8 | 43 1/2 |
| 36″ | 46 | 36 | 32 | 1 5/8 | 42 3/4 | 50 | 36 | 32 | 2 1/8 | 46 |
| 38″ | 48 3/4 | 38 | 36 | 1 5/8 | 45 1/4 | 52 1/4 | 38 | 32 | 2 1/8 | 48 |
| 40″ | 50 3/4 | 40 | 36 | 1 5/8 | 47 1/4 | 54 1/4 | 40 | 36 | 2 1/8 | 50 1/4 |
| 42″ | 53 | 42 | 36 | 1 5/8 | 49 1/2 | 57 | 42 | 36 | 2 1/8 | 52 3/4 |
| 44″ | 55 1/4 | 44 | 40 | 1 5/8 | 51 3/4 | 59 1/4 | 44 | 36 | 2 1/8 | 55 |
| 46″ | 57 1/4 | 46 | 40 | 1 5/8 | 53 3/4 | 61 1/2 | 46 | 40 | 2 1/8 | 57 1/4 |
| 48″ | 59 1/2 | 48 | 44 | 1 5/8 | 56 | 65 | 48 | 40 | 2 1/8 | 60 3/4 |