Hydraulic seals introduction of some species

Hydraulic cylinder seals are used in hydraulic rod seals, piston seals, dust seals, rotary seals, guide rings, retaining rings, O rings, which are combinations of seals, lip seals and O-rings.
Hydraulic Seals - Seals combination
Lancaster closure: Manchester seal ring similar to the structure and format, but also by a rubber O-ring with PTFE special quality seal rectangular or trapezoidal shape composed, Lancaster closure with the same cell to circle can divided into the hole and shaft seal Lancaster Lancaster letters, Lancaster closure and sealing of the cable sealing mechanism and cell to circle the same, but with only one-way Manchester seal sealing effect. Lancaster closure and common features of cell to circle filled PTFE material quality, low friction, no stick-slip, long life.
Grid to circle: grid to circle by rubber O-ring with PTFE seal superimposed square qualitative composition used, the cell to circle can be divided into hole grid to ring and shaft cell to ring, but Their sealing  barrier seals mechanism is the same, the deformation of the sealing according to their own high initial surface contact stress, preventing leakage of the liquid without pressure. Working cylinder, the pressure oil to the elastic deformation of the O-ring seal extrusion square, so close to the sealing surface, and together with the initial contact stress to prevent the pressure oil from leaking.
Lei ring: bud-rings are made of a synthetic rubbery O-ring of rubber-cloth and a Y-shaped ring composed of the superposition, on its own deformation of the sealing surface of high initial contact stress, prevents stress- leakage of liquid. Working cylinder, the pressure oil to the elastic deformation of the O-ring, has squeezed and stretched Y-ring sealing lip, so close to the sealing surface, and together with the initial contact stress to prevent leakage of pressure oil .