German hydromat seals hydromat models hydromat prices

hydromat 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 stuffing box, fixed to the shaft with set screws, the gland bolts are tightened, and the cartridge positioning tabs are removed, allowing the mechanical seal to operate in a parallel face state and begin operation. This not only simplifies assembly but also ensures assembly quality. Welded metal bellows mechanical seals are all made as cartridge seals, possessing the aforementioned advantages. Cartridge seals are also a type of cartridge mechanical seal. In this seal, the stationary ring, rotating ring, shaft sleeve, gland, and auxiliary seals are all assembled together with a shaft 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 easily ensures installation and assembly quality. Thus, beforehand

hydromat seals introduction

A mechanical seal is a shaft sealing device for rotating machinery, such as centrifugal pumps, centrifuges, reaction kettles, and compressors. Since the drive shaft passes through the interior and exterior of the equipment, there is a circumferential gap between the shaft and the equipment. The medium inside the equipment leaks outward through this gap; if the pressure inside the equipment is lower than atmospheric pressure, air leaks into the equipment. Therefore, a shaft sealing device is required to prevent leakage. There are many types of shaft seals. Due to advantages such as low leakage and long service life, mechanical seals are the primary shaft sealing method for these equipment worldwide. Mechanical seals are also called face seals. National standards define them as: "A device that prevents fluid leakage by maintaining contact and relative sliding between at least one pair of faces perpendicular to the axis of rotation, under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism, in conjunction with auxiliary seals."

hydromat seals structural composition

1) Main components: rotating ring, stationary ring, cooling device, and compression spring (depending on the specific equipment). 2) Auxiliary seals: sealing rings (including O-shape, X-shape, U-type, wedge shape, rectangular flexible graphite, PTFE-covered rubber O rings, etc.). 3) Elastic compensation mechanism: springs, thrust rings, spring seats, keys, or various screws. 4) Classification: divided into single face and double face; balanced and unbalanced; arbitrary rotation direction and fixed rotation direction.

hydromat seals installation and shutdown

1) Before starting, keep the seal chamber filled with liquid. When transporting solidifying media, use steam to heat the seal chamber to melt the medium. Before starting, manually rotate the pump to prevent sudden startup from causing the soft ring to shatter. 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) 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 seal parts.

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