ISO standard - Full face flange gasket size - SI unit
| ISO Standard - Full face flange gasket size (SI unit) | |||||||||||
| PN2.5, PN6 | PN10 | PN16 | PN20 | PN25 | PN40 | ||||||
| DN | N holes | DN | N holes | DN | N holes | DN | N holes | DN | N holes | DN | N holes |
| 10 | 4 | 10 | 4 | 10 | 4 | - | - | 10 | 4 | 10 | 4 |
| 15 | 4 | 15 | 4 | 15 | 4 | 15 | 4 | 15 | 4 | 15 | 4 |
| 20 | 4 | 20 | 4 | 20 | 4 | 20 | 4 | 20 | 4 | 20 | 4 |
| 25 | 4 | 25 | 4 | 25 | 4 | 25 | 4 | 25 | 4 | 25 | 4 |
| 32 | 4 | 32 | 4 | 32 | 4 | 32 | 4 | 32 | 4 | 32 | 4 |
| 40 | 4 | 40 | 4 | 40 | 4 | 40 | 4 | 40 | 4 | 40 | 4 |
| 50 | 4 | 50 | 4 | 50 | 4 | 50 | 4 | 50 | 4 | 50 | 4 |
| 65 | 4 | 65 | 8 | 65 | 8 | 65 | 4 | 65 | 8 | 65 | 8 |
| 80 | 4 | 80 | 8 | 80 | 8 | 80 | 4 | 80 | 8 | 80 | 8 |
| 100 | 4 | 100 | 8 | 100 | 8 | 100 | 8 | 100 | 8 | 100 | 8 |
| 125 | 8 | 125 | 8 | 125 | 8 | 125 | 8 | 125 | 8 | 125 | 8 |
| 150 | 8 | 150 | 8 | 150 | 8 | 150 | 8 | 150 | 8 | 150 | 8 |
| 200 | 8 | 200 | 8 | 200 | 12 | 200 | 8 | 200 | 12 | 200 | 12 |
| 250 | 12 | 250 | 12 | 250 | 12 | 250 | 12 | 250 | 12 | 250 | 12 |
| 300 | 12 | 300 | 12 | 300 | 12 | 300 | 12 | 300 | 16 | 300 | 16 |
| 350 | 12 | 350 | 16 | 350 | 16 | 350 | 12 | 350 | 16 | 350 | 16 |
| 400 | 16 | 400 | 16 | 400 | 16 | 400 | 16 | 400 | 16 | 400 | 16 |
| 450 | 16 | 450 | 20 | 450 | 20 | 450 | 16 | 450 | 20 | 450 | 20 |
| 500 | 20 | 500 | 20 | 500 | 20 | 500 | 20 | 500 | 20 | 500 | 20 |
| 600 | 20 | 600 | 20 | 600 | 20 | 600 | 20 | 600 | 20 | 600 | 20 |
| - | - | 700 | 24 | 700 | 24 | - | - | 700 | 24 | - | - |
| - | - | 800 | 24 | 800 | 24 | - | - | 800 | 24 | - | - |
| - | - | 900 | 28 | 900 | 28 | - | - | 900 | 28 | - | - |
| - | - | 1000 | 28 | 1000 | 28 | - | - | 1000 | 28 | - | - |
| - | - | 1200 | 32 | 1200 | 32 | - | - | 1200 | 32 | - | - |
| - | - | 1400 | 36 | 1400 | 36 | - | - | 1400 | 36 | - | - |
| - | - | 1600 | 40 | 1600 | 40 | - | - | 1600 | 40 | - | - |
| - | - | 1800 | 44 | 1800 | 44 | - | - | 1800 | 44 | - | - |
| - | - | 2000 | 48 | 2000 | 48 | - | - | 2000 | 48 | - | - |
Notice DN is norminal diameter N holes is number of bolt holes
Contact details
Westbound Engineering Co., Ltd.
313/2 Phra-rama9 15, Phra-rama9 rd.,
Huaykwang, Bangkapi, Bangkok, Thailand, 10130
Tel : (+66)2-719-7300-8
Fax : (+66)2-719-7309
Email : info@thaiseal.com
Contact details
Westbound Engineering Co., Ltd.
313/2 Phra-rama9 15, Phra-rama9 rd.,
Huaykwang, Bangkapi, Bangkok, Thailand, 10130
Tel : (+66)2-719-7300-8
Fax : (+66)2-719-7309
Email : info@thaiseal.com
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