German Peiseler seals, Peiseler models, Peiseler prices

Peiseler seals are a typical representative of oil seals; generally, the term "oil seal" refers to skeleton oil seals. The function of an oil seal is typically to isolate components requiring lubrication within transmission parts from the external environment, preventing lubricating oil leakage. The skeleton acts like reinforcing steel in concrete components, providing reinforcement and enabling the oil seal to maintain its shape and tension. Based on structural form, they can be divided into single-lip skeleton oil seals and double-lip skeleton oil seals. The secondary lip of a double-lip skeleton oil seal serves a dust-proof function, preventing external dust, impurities, etc., from entering the machine interior. Based on skeleton type, they can be classified as internally caged skeleton oil seals, externally exposed skeleton oil seals, and assembled oil seals. Based on operating conditions, they can be divided into rotating skeleton oil seals and reciprocating skeleton oil seals. They are used in locations such as gasoline engine crankshafts, diesel engine crankshafts, gearboxes, differentials, shock absorbers, engines, and axles.

Peiseler seal types

1) Compression seals: Compression seals, especially O rings, have always been widely used in sealing applications. Other forms such as X type, T type, D type, square, and triangular are suitable for application in different occasions. The direction of improvement is to make their sealing performance stable and reliable, increase their pressure resistance, and reduce friction. They can also form combined seals with low-friction plastics such as PTFE and nylon slide rings and support rings. This increases pressure resistance and reduces friction. Some manufacturers' products are permitted to reach speeds of 7.5m/s and sealing pressures of 5.6MPa. 2) Reciprocating lip seals: Reciprocating lip seals, also known as lip gaskets or cups, are quite widely used for dynamic sealing in reciprocating hydraulic cylinders. The pressure-bearing surface of this seal is lip-shaped; during installation, there is a minimal interference fit, allowing the lip edge to fully contact the sealing surface to create a seal. When the cylinder operates, as pressure rises, the contact force and contact area increase, thereby improving sealing. During the cylinder return stroke, pressure drops, and both contact area and friction are lower than during the working stroke, thus creating a breathing action that lubricates the lip. There are many types of reciprocating seals; common ones include J type, L type, U type, V type, and Y type. There are also various combination and composite seals, such as U-cup, V-ring, and multi-lip seals. Extrusion must be prevented under high pressure by selecting materials with sufficient tear strength, hardness, and modulus, or by using support rings for protection, or by employing reinforced elastomers. Seals used under high pressure, high speed, or high temperature often use composite combination seals. Their common feature is having two lips in contact with the cylinder wall. A groove is provided in the middle of the sealing area to store media, improving lubricity, reducing lip wear, and ensuring reliable sealing. Lip seals used in pneumatic systems are required to operate without oil lubrication; contact pressure is a factor, and some designs integrate a dust wiper with the seal into a single structure. 3) Rotating shaft lip seals: There are no fewer than 200 varieties of similar structures. Examples include hydrodynamic type, internally caged skeleton, assembled type, externally exposed skeleton, bonded PTFE AF type, and dual-modulus return-flow type. The advantage of the externally exposed assembled type is accurate positioning, high concentricity, and good heat conduction and dissipation conditions. It remains stable under pressure and vibration, resulting in a longer service life while saving rubber material. The dual-modulus return-flow type applies wave seal theory; by adding a low-modulus, easily deformable material at the sealing contact area, a return-flow effect is achieved, simultaneously reducing product design and mold processing costs. Joints between rigid waterproof layers and gable walls, parapet walls, and structures protruding from the roof should all be properly treated with flexible sealing.

Peiseler seal influencing factors

Hydraulic seals play a crucial role in the integrity of hydraulic and pneumatic systems. If the seals of a hydraulic or pneumatic component are not up to standard, the component itself is not considered a good product. Many factors influence seals. First, pressure is a significant cause affecting seal quality; the level of pressure and the duration of pressure cycle changes greatly impact seal damage (such as extrusion). The higher the pressure, the greater the influence of other factors on seal performance, such as temperature, speed, seal material, the gap between the piston and cylinder barrel, and the gap between the piston and cylinder head. Another factor is temperature and friction. It is difficult to describe the maximum and minimum operating temperatures for a seal material because this is the result of the combined influence of a series of factors. The operating temperatures for the piston and piston rod differ, so they must be selected accordingly. Another factor is the surface roughness of the seal product; surface characteristics, pressure, media, temperature, seal material, seal type, and motion speed are all factors affecting seals. The last factor is surface treatment. Experience shows that the surface characteristics of the cylinder piston and piston rod have a very significant impact on seal life. Surface characteristics are commonly defined by the RA value of surface roughness; RA is the arithmetic mean of the absolute values of the surface profile deviations from the centerline. However, these values do not completely represent the influence of surface conditions on seals, because even under the same roughness, different surface shape characteristics can lead to varying degrees of seal wear.

Peiseler seal installation and shutdown

1) Before starting, keep the seal chamber filled with liquid. When transporting solidified media, use steam to heat the seal chamber to melt the media. Manual rotation must be performed before startup to prevent sudden startup from causing the soft ring to shatter. 2) For mechanical seals utilizing an external flush oil system, start the flush oil system first. Stop the flush oil system last after shutdown. 3) After stopping a hot oil pump, do not immediately stop the cooling water for the flush oil chamber and face seal. Wait until the oil temperature at the face seal drops below 80 degrees before stopping the cooling water to avoid damaging the seal parts.

Weidou Intelligent Technology professionally sells German Peiseler seals, Peiseler O-rings, Peiseler sealing strips, Peiseler pipe seals, Peiseler cable seals, Peiseler rubber seals, Peiseler mechanical seals, Peiseler gaskets, Peiseler oil seals, Peiseler shaft seals, Peiseler metal seals, Peiseler high-pressure seals, Peiseler spiral seals, Peiseler centrifugal seals, Peiseler sealing rings, Peiseler original imports from Germany. Welcome customers to inquire and order.