German Tricotech seals Tricotech models Tricotech prices

Tricotech seals are the customary term for general seals, simply referring to lubricating oil seals. They are mechanical components used to seal grease (oil is the most common liquid substance in transmission systems, and also refers to general liquid substances). They isolate components requiring lubrication in the transmission system from output components, preventing lubricating oil leakage. Seals used for static sealing and dynamic sealing (generally reciprocating motion) are called oil seals. The representative form of oil seals is the TC oil seal, which is a double-lip oil seal with a self-tightening spring fully covered by rubber. The term "oil seal" generally refers to this type of tc skeleton oil seal.

Tricotech seal classification

1) Packing seal; the packing seal has a simple structure, low price, and convenient maintenance. However, it has high leakage and high power loss. Therefore, packing seals are used for transporting general media, such as water; they are generally not suitable for petroleum and chemical media, especially valuable, flammable, explosive, and toxic media. 2) Mechanical seal: Mechanical seals (also known as face seals) have good sealing performance, very low leakage, and long service life, but they are expensive, and their processing, installation, maintenance, and repair requirements are higher than those of general seals. Mechanical seals are suitable for transporting petroleum and chemical media and can be used for media with various viscosities, strong corrosiveness, and containing particles. The American Petroleum Institute standard API610 (8rd edition) stipulates: Unless otherwise specified by the user, cartridge mechanical seals shall be installed. 3) Dynamic seal: Dynamic seals can be divided into back-vane seals and auxiliary impeller seals. When the pump is operating, the centrifugal force of the back vanes (or auxiliary impeller) reduces the pressure of the medium at the shaft seal to atmospheric or negative pressure, preventing leakage during use. When the pump stops, the centrifugal force disappears, and the sealing effect of the back vanes (or auxiliary impeller) fails. At this time, the stop-sealing device provides the sealing function. Packing seals are commonly used in the stop-sealing devices matched with back-vane (or auxiliary impeller) seals. There are two types of packing seals: ordinary type and mechanical adjustable type. Ordinary packing seals are similar to general packing seal pumps, requiring micro-positive pressure at the shaft seal to avoid dry friction of the packing. Mechanical adjustable packing seals use counterweights to loosen the packing during pump operation and tighten it when stopped. Dynamic seals have reliable performance, low price, and convenient maintenance, making them suitable for transporting media containing many solid particles, such as slurry pumps and feed slurry pumps in the phosphate industry. The disadvantage is that power loss is greater than that of mechanical seals, and the service life of the stop-sealing device is shorter. The seal between the rotating pump shaft and the fixed pump casing is called the shaft seal. Its function is to prevent high-pressure liquid from leaking out along the shaft from inside the pump, or outside air from entering along the shaft. For centrifugal pumps, the shaft seal belongs to dynamic sealing. Depending on whether the sealing surfaces are in contact, it can be divided into contact dynamic seals and non-contact dynamic seals. In contact dynamic seals, the sealing device contacts the shaft, and there is relative friction between them. Contact dynamic seals include packing seals and mechanical seals.

Tricotech seal operation

1) If slight leakage occurs after the pump starts, observe it for a period. If the leakage does not decrease after continuous operation for 4 hours, stop the pump for inspection. 2) The operating pressure of the pump should be stable, with pressure fluctuations not exceeding 1 kg/cm². 3) During pump operation, avoid cavitation to prevent dry friction and damage to the sealing surfaces. 3) Check the sealing condition regularly. During operation, if leakage exceeds the standard (heavy oil not more than 5 drops/min, light oil not more than 10 drops/min), and there is no improvement within 2-3 days, stop the pump to inspect the sealing device.

Tricotech seal functions and applications

Engine: Crankshaft - front and rear crankshaft oil seals; Valve - valve oil seals (engine repair kit o O-rings) (distributor oil seal, water pump oil seal, balance shaft oil seal, oil pump oil seal...); Camshaft - camshaft oil seal; Transmission: Transmission - front and rear transmission oil seals; Shift lever oil seal (transmission repair kit o O-rings) (Transfer case - front and rear transfer case oil seals); Rear axle: Half-shaft - rear half-shaft oil seal; Differential - (front/rear) pinion oil seal; Rear wheel oil seal; Front wheel oil seal; Steering gear oil seal (steering gear repair kit o O-rings); Power steering booster oil seal (front half-shaft oil seal). Oil seals are required wherever there is liquid lubricating oil inside a rotating housing connected to the exterior. Some are made of rubber, some of metal, but most are steel-cased rubber, such as rear crankshaft oil seals, front and rear transmission oil seals, left and right half-shaft oil seals, front main reducer oil seals, and air compressor crankshaft oil seals.

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