Dovetail grooves are a type of O-ring groove design that are used to keep O-rings in place. They are designed to create a secure placement, preventing the O-ring from falling out. Dovetail grooves can be used for bolted flanges or open and close lids.
Recommended surface finish: 16 Ra max. for gases and 32 Ra max. for fluids.
Dovetail Gland and O-Ring Width and Depth Default Recomendations
AS 568A Series | O-Ring Cross Section | Gland Width (W) | Gland Depth (H) | Gland Corner Radii | ||||
|---|---|---|---|---|---|---|---|---|
Nom | Tol +/- | Nom | Tol +/- | Nom | Tol +/- | (R1) | (R2) | |
000 | 0.07 | 0.003 | 0.064 | 0.002 | 0.052 | 0.002 | 0.015 | 0.005 |
-100 | 0.103 | 0.003 | 0.088 | 0.003 | 0.078 | 0.003 | 0.015 | 0.01 |
-200 | 0.139 | 0.004 | 0.12 | 0.003 | 0.106 | 0.003 | 0.031 | 0.01 |
-300 | 0.21 | 0.005 | 0.176 | 0.003 | 0.164 | 0.004 | 0.031 | 0.015 |
-400 | 0.275 | 0.006 | 0.235 | 0.003 | 0.215 | 0.004 | 0.063 | 0.015 |
Dovetail Gland and O-Ring Diameter Default Recomendations
| Dash Size | O-Ring Cross Section | O-Ring Diameter | Dovetail Gland CL Diameter (F) | |||
|---|---|---|---|---|---|---|
| Nom | Tol +/- | Nom | Tol +/- | Nom | Tol +/- | |
| -005 | 0.07 | 0.003 | 0.101 | 0.005 | 0.178 | 0.002 |
| -006 | 0.07 | 0.003 | 0.114 | 0.005 | 0.191 | 0.002 |
| -007 | 0.07 | 0.003 | 0.145 | 0.005 | 0.222 | 0.002 |
| -008 | 0.07 | 0.003 | 0.176 | 0.005 | 0.253 | 0.002 |
| -009 | 0.07 | 0.003 | 0.208 | 0.005 | 0.285 | 0.002 |
| -010 | 0.07 | 0.003 | 0.239 | 0.005 | 0.316 | 0.002 |
| -011 | 0.07 | 0.003 | 0.301 | 0.005 | 0.378 | 0.002 |
| -012 | 0.07 | 0.003 | 0.364 | 0.005 | 0.441 | 0.002 |
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