Difference of seal and Glyd ring?
The difference between the two is that the seal is a single-acting seal that seals only one direction of pressure.
The Glyd Ring is a double acting seal that seals pressure in both directions.
The Glyd Ring is a combination of a rubber O-ring and a Teflon ring. The O-ring applies force and the Glyd ring is a double-acting piston seal. Low friction, no creep, low starting force and high pressure resistance. Can be divided into holes with a Glyd ring and a shaft with a Glyd ring.
The seal is usually a combination of a rubber O-ring and a Teflon ring. The O-ring is a force-applying element that provides sufficient sealing force and compensates for the Teflon ring.