TET 3-5 seals German thorsman model TET 3-5 price

TET 3-5 seals are materials or components that prevent leakage of fluids or solid particles from adjacent mating surfaces and prevent external contaminants such as dust and moisture from entering machinery. The recommended storage temperature for seals is below 30 °C to avoid high-temperature aging. Seals can be divided into two main categories: static seals and dynamic seals. Their primary function is to prevent leakage of fluids or solid particles from adjacent mating surfaces and to prevent external contaminants such as dust and moisture from entering machinery. Static sealing refers to the tight closure of sealed chambers or containers, used for sealing letters and testamentary stamps.

TET 3-5 seal classification

Seals can be divided into two main categories: static seals and dynamic seals. Static seals mainly include gasket seals, sealant seals, and direct contact seals. Based on working pressure, static seals can be further divided into medium/low-pressure static seals and high-pressure static seals. Medium/low-pressure static seals commonly use softer, wider gaskets, while high-pressure static seals use harder metal gaskets with very narrow contact widths. Dynamic seals can be divided into two basic types: rotary seals and reciprocating seals. Additionally, depending on whether the seal contacts the moving part, they can be classified as contact seals and non-contact seals; based on the contact position, they can be classified as circumferential seals and face seals, with face seals also known as mechanical seals. Centrifugal seals and spiral seals in dynamic sealing rely on the energy imparted to the medium during machine operation to achieve sealing, hence they are sometimes referred to as power seals.

TET 3-5 seal usage guidelines

1) Select suitable seal materials and hydraulic oil, considering compatibility with operating temperatures and oil. 2) High geometric precision (concentricity) of parts sliding against the seal, good material quality (such as hard chrome plating), and fine surface roughness can extend service life. (1) For oil seals used on hydraulic pump and motor shafts, the sliding surface roughness must be within Ra of 0.25m, and hard chrome plating is required. During specific use, the radial spring force of the oil seal lip should be appropriately adjusted to ensure proper tightness. An installation sleeve or thin shim should be used during installation to protect the seal ring, preventing the lip from rolling or twisting, which could cause the spring to slip out. (2) The inner surface of hydraulic cylinder barrels is often processed by roller burnishing, which not only improves surface roughness but also induces cold work hardening, helping to extend the service life of seal rings. In addition, operating pressure, sliding surface length, and type significantly affect service life. Therefore, "scheduled inspection" intervals should be determined based on these conditions. (3) Ensure good lubrication of the sealing surface and prevent contaminant ingress. Using oil fluids that meet specified cleanliness grades and correct installation methods are also necessary conditions. Seal storage: 1). The recommended storage temperature for seals is below 30 °C to avoid high-temperature aging; 2). Seals must be stored in sealed packaging to avoid contact with moisture or dust in the air; 3). Seals must be protected from strong light exposure to avoid erosion by ozone in the air or premature aging. The factors affecting performance vary for different seals; for example, factors affecting mechanical seals (packing seals, etc.) include temperature, medium, wear, and pressure.

TET 3-5 seal precautions

1). Before designing grooves, carefully read the product descriptions for each series to distinguish whether the product uses an integral groove or a split groove. During seal installation, avoid sharp edges. Installing rod seals into integral grooves requires installation tools. Designers must consider groove dimensional precision, surface roughness, extrusion gap, and other parameters; please refer to product instructions, diagrams, and dimension tables for details. 2). Before installing seals, ensure there are no impurities or cracks in the seal groove. Apply assembly oil to both the seal groove and the seal surface. Install seals gradually in sequence. Avoid sharp edges during installation, align the seal properly, and prevent twisting or skewing. If using a split groove, tighten the pressure cover last.

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