German gummi kunststoffe seals gummi kunststoffe models gummi kunststoffe prices

gummi kunststoffe seals are a type of friction seal or stuffing box used to prevent liquid leakage between the shaft and bearing of compressors or other fluid handling equipment. They are also sealing devices installed to prevent leakage at the pump shaft and housing. Common types of shaft seals include packing seals, mechanical seals, and power seals. The shaft seal of a reciprocating pump is typically a packing seal. When transporting media where leakage is not permitted, diaphragm reciprocating pumps can be used. The shaft seals for rotary pumps (including vane pumps, rotor pumps, etc.) mainly consist of packing seals, mechanical seals, and power seals.

gummi kunststoffe seals introduction

A mechanical seal is a shaft sealing device for rotating machinery, such as centrifugal pumps, centrifuges, reaction vessels, 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. Media inside the equipment leaks outward through this gap; if the internal pressure 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 known as 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."

gummi kunststoffe seals structure and 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: single-face, double-face; balanced, unbalanced; arbitrary rotation direction, fixed rotation direction.

gummi kunststoffe seals precautions

1) Shaft speed: Due to design and structural reasons, high-speed shafts should use high-speed oil seals, and low-speed shafts should use low-speed oil seals. Low-speed oil seals must not be used on high-speed shafts, and vice versa. 2) Ambient temperature: In high-temperature operating conditions, select polyacrylate, silicone, fluorine, or silicone-fluorine rubber. Measures should be taken to reduce the oil temperature in the tank. In low-temperature operating conditions, select cold-resistant rubber. (3) Pressure: Standard oil seals have poor pressure resistance and will deform under excessive pressure. In high-pressure conditions, use pressure-resistant support rings or reinforced pressure-resistant oil seals. 4) Installation eccentricity: Excessive eccentricity between the oil seal and the shaft will reduce sealing performance, especially at high shaft speeds. If eccentricity is excessive, an oil seal with a "W" cross-section can be used. 5) Shaft surface finish directly affects the service life of the oil seal; a higher shaft surface finish results in a longer oil seal service life. 6) Ensure there is an adequate amount of lubricating oil at the lip of the oil seal. 7) Take special care to prevent dust from entering the oil seal.

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