Dovetail O-Ring Groove Design

Learn More About Dovetail Groove Design.

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.

O-ring Dovetial Groove Dimensions
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 SizeO-Ring Cross SectionO-Ring DiameterDovetail Gland CL Diameter (F)
NomTol +/-NomTol +/-NomTol +/-
-0050.070.0030.1010.0050.1780.002
-0060.070.0030.1140.0050.1910.002
-0070.070.0030.1450.0050.2220.002
-0080.070.0030.1760.0050.2530.002
-0090.070.0030.2080.0050.2850.002
-0100.070.0030.2390.0050.3160.002
-0110.070.0030.3010.0050.3780.002
-0120.070.0030.3640.0050.4410.002

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