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To provide an effective seal, the o-ring's inside diameter (I.D.) must be smaller than the piston groove diameter, so that the o-ring is slightly stretched, fitting snugly in the groove. This stretch should be between 1%-5% with 2% as the ideal in most piston applications. A stretch greater than 5% is not recommended.

Understand the components of mechanical seals If we consider a mechanical end face ring, then the basic components are the seal rings, mating rings, secondary sealing elements, a means of actuation, and a means of drive. The seal ring and mating rings are called the primary sealing surfaces.

The common mechanical seal variations Balanced & Unbalanced. Seals are available as balanced, for high pressure, and unbalanced, for low pressure, with both having advantages and disadvantages. ... Pusher & Non-Pusher. ... Single & Multi-Spring.

One key difference between these two sealing components is their application range; oil seals have higher pressure resistance compared to O rings which make them ideal for high-pressure environments like engine parts while O-rings work well for lower-pressure assemblies like valves and pipes.

Oil seals normally consist of three basic components: the sealing element, the metal case, and garter spring.

Seals are semi-aquatic mammals that are in a group called pinnipeds, which means fin-footed. There are 32 species of web-footed aquatic mammals that live chiefly in cold seas and whose body shape is round at the middle and tapered at the ends. It is adapted for swift and graceful swimming.

Essential elements of a mechanical seal Seal faces: one rotating with the shaft and one stationary in the pump casing, cover or flange. Secondary seals: one to seal the rotating face to the shaft and one to seal the stationary face to the pump cover or flange.