German dynaset seals dynaset models dynaset prices

dynaset 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 is in a parallel face operating state and ready for 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. For this type of seal, the stationary ring, rotating ring, shaft sleeve, gland, and auxiliary seals are all assembled together on a single 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 makes it easy to ensure installation and assembly quality.

dynaset seal advantages

1) Oil seals have a simple structure and are easy to manufacture. Simple oil seals can be molded in one step; even the most complex oil seals do not have complicated manufacturing processes. Metal-cased oil seals only require processes such as stamping, bonding, insertion, and molding to combine metal and rubber into the required oil seal. 2) Oil seals are lightweight and consume little material. Each oil seal is a combination of thin-walled metal and rubber components, resulting in minimal material consumption and thus very light weight for each oil seal. 3) Oil seals require small installation space and have small axial dimensions, making them easy to machine and allowing for compact machine design. 4) Oil seals offer good sealing performance and long service life. They have certain adaptability to machine vibration and main shaft eccentricity. 5) Oil seals are easy to disassemble and convenient to inspect. 6) Oil seals are low-priced.

dynaset seal precautions

1) Preparation and precautions before startup: a. Comprehensively inspect the mechanical seal, as well as auxiliary devices and piping installations, to ensure they are complete and comply with technical requirements. b. Conduct a static pressure test on the mechanical seal before startup to check for leakage. If there is significant leakage, identify the cause and take measures to eliminate it. If this is ineffective, disassemble, inspect, and reinstall. Generally, the static test pressure is 2~3 kg/cm². c. Rotate the pump by hand according to its rotation direction to check if it moves lightly and evenly. If rotation is difficult or stuck, check for errors in assembly dimensions and reasonable installation. 2) Installation and shutdown: a. Keep the seal chamber filled with liquid before startup. When transporting media that solidify, use steam to heat the seal chamber to melt the media. Manual rotation must be performed before startup to prevent sudden startup from causing fracture of the soft ring. b. For mechanical seals using an external seal oil system, start the seal oil system first. Stop the seal oil system last after shutdown. c. Do not immediately stop the cooling water for the seal oil chamber and face seal after stopping 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 parts. 3) Operation: a. If slight leakage occurs after pump startup, observe for a period. If the leakage does not decrease after continuous operation for 4 hours, stop the pump for inspection. b. Pump operating pressure should be stable, with pressure fluctuations not exceeding 1 kg/cm². c. Avoid cavitation during pump operation to prevent dry friction of the sealing faces and seal damage. d. Regularly inspect the sealing condition. During operation, if leakage exceeds the standard (not more than 5 drops/min for heavy oil, not more than 10/min for light oil), and there is no improvement trend within 2-3 days, stop the pump to inspect the sealing device.

dynaset seal 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. Do not use low-speed oil seals on high-speed shafts, and vice versa. 2) Ambient temperature: In cases of higher operating temperatures, select polyacrylate or silicone, fluorine, or fluoro-silicone rubber. Take measures to lower the oil temperature in the tank. In cases of lower operating temperatures, select cold-resistant rubber. (3) Pressure: General oil seals have poor pressure resistance; excessive pressure will cause the oil seal to deform. Under conditions of excessive pressure, use pressure-resistant support rings or reinforced pressure-resistant oil seals. 4) Eccentricity in installation: If the eccentricity between the oil seal and the shaft is too large, sealing performance will deteriorate, especially at high shaft speeds. If the eccentricity is too large, an oil seal with a "W" shaped cross-section can be used. 5) Shaft surface finish directly affects the service life of the oil seal; i.e., higher shaft smoothness results in longer oil seal service life. 6) Ensure there is a certain amount of lubricating oil at the lip of the oil seal. 7) Pay special attention to preventing dust from entering the oil seal.

Weidou Intelligent Technology professionally sells German dynaset seals, dynaset O-rings, dynaset sealing strips, dynaset pipe seals, dynaset cable seals, dynaset rubber seals, dynaset mechanical seals, dynaset gaskets, dynaset oil seals, dynaset shaft seals, dynaset metal seals, dynaset high-pressure seals, dynaset spiral seals, dynaset centrifugal seals, dynaset sealing rings, dynaset original German imports. Welcome customers to inquire and order.