TET 14-20 seals Germany thorsman model TET 14-20 price

TET 14-20 seals utilize the "container" concept from transportation to create cartridge seals. The rotating and stationary parts of this seal are pre-assembled into a single unit before installation. After passing inspection and pressure testing, the unit is mounted on the shaft within the seal chamber, fixed to the shaft with set screws, and the gland bolts are tightened. Once the cartridge positioning tabs are removed, the mechanical seal operates with parallel faces and is ready for service. This approach not only simplifies assembly but also ensures assembly quality. Welded metal bellows mechanical seals are all designed as cartridge seals, offering these advantages. Cartridge seals are also a type of cartridge mechanical seal. In this seal design, the stationary ring, rotating ring, sleeve, gland, and auxiliary seals are all assembled together on a single sleeve before installation, facilitating inspection of assembly quality. After passing inspection, simply tighten the seal cover and secure the screws. This pre-assembled, inspected, and tested seal component makes it easy to ensure installation and assembly quality.

TET 14-20 seal features

1) No need to measure the seal working length during installation; 2) The shaft can be adjusted at any time; 3) No leakage occurs at startup because the seal has been pre-tested; 4) During installation, only the seal cover bolts need to be fitted and tightened, making assembly quality easy to ensure; 5) Protects the sealing faces from contamination by debris or damage due to operational errors before installation or startup; 6) Can be readjusted after thermal expansion of the machinery; 7) Self-centering through fit; 8) Seals can be easily removed for cleaning and inspection without disassembling the pump or equipment. API682 standard recommends the use of cartridge mechanical seals for all mechanical seals.

TET 14-20 seal startup preparation

1) Conduct a comprehensive inspection to ensure that the mechanical seal, auxiliary devices, and piping are fully installed and comply with technical requirements. 2) Perform a static pressure test on the mechanical seal before startup to check for leaks. If significant leakage is observed, identify and eliminate the cause. If the issue persists, dismantle, inspect, and reinstall. The static test pressure is generally 2~3 kg/cm². 3) Rotate the pump manually in the direction of rotation to check for smooth and uniform movement. If rotation is difficult or stalled, check for incorrect assembly dimensions or improper installation.

TET 14-20 seal installation and shutdown

1) Keep the seal chamber filled with liquid before startup. For media that solidify, use steam to heat the seal chamber and melt the medium. Manual rotation must be performed before startup to prevent sudden startup from causing fracture of the soft ring. 2) For mechanical seals using an external flush oil system, start the flush oil system first. Stop the flush oil system last after shutdown. 3) Do not immediately stop the cooling water for the flush oil chamber and face seal after shutting down a hot oil pump. Wait until the oil temperature at the face seal drops below 80 degrees before stopping the cooling water to avoid damaging seal components.

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