German trumpf seals trumpf models trumpf prices

trumpf seals are materials or components that prevent leakage of fluids or solid particles from adjacent mating surfaces and prevent external contaminants such as dust and moisture from entering machinery. The recommended storage temperature for seals is below 30°C to avoid high-temperature aging. Seals are classified into static seals and dynamic seals. Their main function is to prevent leakage of fluids or solid particles from adjacent mating surfaces and to prevent external contaminants such as dust and moisture from entering machinery. Static sealing refers to the tight closure of sealed chambers and containers used for sealing letters and wills with stamps.

trumpf 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 require complicated manufacturing processes. Metal-cased oil seals only require stamping, bonding, inlaying, 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 parts, resulting in minimal material usage and very light weight. 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 spindle eccentricity. 5) Oil seals are easy to disassemble and convenient to inspect. 6) Oil seals are low-priced.

trumpf seal precautions

1) Preparation and precautions before startup: a. Comprehensively check whether the mechanical seal, auxiliary devices, and pipeline installations are complete and comply with technical requirements. b. Perform a static pressure test on the mechanical seal before startup to check for leakage. If there is significant leakage, identify the cause and eliminate it. If this is ineffective, disassemble, inspect, and reinstall. The static test pressure is generally 2~3 kg/cm². c. Rotate the pump according to its direction of rotation 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. After stopping a hot oil pump, do not immediately stop the cooling water for the seal 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. 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. During pump operation, avoid cavitation to prevent dry friction of the sealing faces and seal damage. d. Regularly check the sealing condition. During operation, if leakage exceeds the standard (heavy oil not more than 5 drops/min, light oil not more than 10/min), and there is no improvement within 2-3 days, stop the pump to inspect the sealing device.

trumpf seal installation technical requirements

Mechanical seals are high-precision mechanical components, and correct installation and operation significantly affect their service life. We generally follow the standards specified by the Ministry of Petrochemical Industry. The technical requirements for the pump and the mating parts of the mechanical seal are as follows: 1) Shaft bending: maximum not greater than 0.05 mm; 2) Rotor runout: near the shaft sleeve at the dynamic ring seal circle, not greater than 0.06 mm; 3) Axial shaft movement must not exceed ±0.5 mm; if a shaft sleeve is present, the shaft sleeve must not be loose; 4) Coupling alignment error: for gear couplings, not greater than 0.08～0.10 mm (P2008C); for elastic couplings, not greater than 0.05～0.06 mm; (common practice: end runout<0.05, radial runout<0.10) 5) The concentricity tolerance of the gland (static ring seat) and the sealing spigot relative to the shaft centerline is 0.05 mm. The perpendicularity tolerance of the surface contacting the gasket relative to the centerline is 0.03～0.05 mm. If requirements are not met, the seal chamber must be machined; 6) The ends of the shaft sleeve where the dynamic ring seal is installed, and the ends of the gland (or housing) where the static ring seal is installed, should be chamfered and smoothed. 7) Be careful when installing and removing mechanical seals. Do not use hammers or flat chisels to avoid damaging seal elements. If scale prevents removal, clean thoroughly before disassembly. 8) If mechanical seals are used at both ends of the pump, coordinate during assembly and disassembly to avoid neglecting one side. 9) For mechanical seals that have been in operation, if gland loosening causes seal movement, the dynamic and static ring parts must be replaced. Do not simply retighten and continue use. Loosening changes the original running trajectory of the friction pair, easily compromising the sealing of the contact surfaces.

Weidou Intelligent Technology specializes in selling German trumpf seals, trumpf O-rings, trumpf sealing strips, trumpf pipe seals, trumpf cable seals, trumpf rubber seals, trumpf mechanical seals, trumpf gaskets, trumpf oil seals, trumpf shaft seals, trumpf metal seals, trumpf high-pressure seals, trumpf spiral seals, trumpf centrifugal seals, trumpf sealing rings, trumpf original German imports. Customers are welcome to inquire and order.