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Flanges & Components > ASA Flanges & Components > ASA O-Rings & Hardware

Seal Rings

Captured O-Ring Gaskets

  • These gaskets are made for sealing two ungrooved flanges
  • A normal O-Ring, of either Buna®-N or Fluorocarbon, is captured and located between two aluminum retaining rings. The O-Ring is included, and the standard O-Ring dash number designator is included for convenient replacement.
  • The thickness of the aluminum retaining rings is 0.10 inches and the O-Ring cross section diameter is 0.139 inches
  • When two flat (without o-ring grooves) ASA flanges must be mated using these Econo-Rings, consisting of a Buna-N or Fluorocarbon O-ring, it can serve as the required O-ring

Dimensional Drawings

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Ordering Table

(Click column headers to sort data)

ASA
Flange
OD ID O-Ring
Mat'l
Weight
lbs
PartNo Price Add Item
VacuCADSM
ASA
Flange
OD ID O-Ring
Mat'l
Weight
lbs
PartNo Price Add Item
VacuCADSM
2 2.97 2.25 Buna-N 0.25
ECB-2
$60.00
N/A
3 5.25 3.75 Buna-N 0.25
ECB-3
$59.00
N/A
4 6.75 5.25 Buna-N 0.25
ECB-4
$59.00
N/A
6 8.63 7 Buna-N 0.25
ECB-6
$99.00
N/A
2 2.97 2.25 Fluorocarbon 0.25
ECV-2
$75.00
N/A
3 5.25 3.75 Fluorocarbon 0.25
ECV-3
$114.00
N/A
4 6.75 5.25 Fluorocarbon 0.25
ECV-4
$98.00
N/A
6 8.63 7 Fluorocarbon 0.25
ECV-6
$130.00
N/A

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