The Difference Between O-ring And ED

O-Ring Seals：O-rings are circular elastomer rings with a round cross-section.

SAE O-RING, ISO 6149 O-RING, METRIC O-RING, BSPP O-RING

Figure1 O-RING

ED seal(Non-O-Ring): They may have different profiles (such as square, rectangular, or custom shapes).

BSPP parallel thread with ED seal according to ISO 1179-2

Metric parallel thread with ED seal according to ISO 9974-2

Figure2 ED

The difference between O-ring and ED

O-RING：UN/UNF/Metric/BSPP thread,Wide range of use.

ED is design for flat face port ends, such as BSPP and metric flat face ports.

Eolastic seals are specifically designed for certain types of parallel thread ports (such as BSPP and metric)

O-rings are suitable for a wide range of pressures, ED seals are specifically designed for high-pressure applications.

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