Germany HUECK Rheinische GmbH seals HUECK Rheinische GmbH model HUECK Rheinische GmbH price

HUECK Rheinische GmbH seals are the customary term for general seals; simply put, they are seals for lubricating oil. They are mechanical components used to seal grease (oil is the most common liquid substance in transmission systems, and also refers to general liquid substances), isolating the parts requiring lubrication in the transmission components from the output parts to prevent lubricating oil leakage. Seals used for static sealing and dynamic sealing (generally reciprocating motion) are called oil seals. The representative form of oil seals is the TC oil seal, which is a double-lip oil seal with a self-tightening spring completely covered by rubber. The oil seal commonly referred to is generally this type of tc skeleton oil seal.

HUECK Rheinische GmbH seal advantages

1) The oil seal structure is simple and 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 skeleton oil seals only require processes such as stamping, bonding, inlaying, and molding to combine metal and rubber into the required oil seal. 2) Oil seals are lightweight and consume less material. Each oil seal is a combination of thin-walled metal and rubber parts, consuming very little material, so each oil seal is very light. 3) The installation position of the oil seal is small, with small axial dimensions, making it easy to process and allowing for compact machine design. 4) Oil seals have good sealing performance and a 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 inexpensive.

HUECK Rheinische GmbH seal precautions

1) Preparation and precautions before startup: a. Comprehensively check whether the mechanical seal, as well as auxiliary devices and pipeline installations, are complete and meet 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 eliminate it. If ineffective, disassemble, inspect, and reinstall. The general static test pressure is 2~3 kg/cm². c. Rotate the pump according to its direction of rotation to check if it is light and uniform. 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 solidified media, use steam to heat the seal chamber to melt the medium. Manual rotation must be performed before startup to prevent sudden startup from causing the soft ring to shatter. b. For mechanical seals utilizing 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 continuous operation for 4 hours does not reduce the leakage, stop the pump for inspection. b. The pump operating pressure should be stable, with pressure fluctuations not exceeding 1 kg/cm². c. During pump operation, avoid cavitation to prevent dry friction on the sealing surface 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 trend within 2-3 days, stop the pump to inspect the sealing device.

HUECK Rheinische GmbH seal installation technical requirements

Mechanical seals are high-precision mechanical components, and their correct installation and operation greatly affect their service life. We generally follow the standards prescribed by the Ministry of Petrochemical Industry. The technical requirements for the pump installing the mechanical seal 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 moving ring seal ring, not greater than 0.06 mm; 3) Axial shaft movement is not allowed to exceed ±0.5 mm; if equipped with a shaft sleeve, 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; (customary practice: end runout<0.05, radial runout<0.10) 5) The concentricity tolerance of the gland (static ring seat) and the seal mating spigot relative to the shaft centerline is 0.05 mm. The perpendicularity tolerance of the plane 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 moving ring seal ring is installed, and the ends of the gland (or housing) where the static ring seal ring is installed, should be chamfered and smoothed. 7) Be careful when installing and removing mechanical seals. Strictly prohibit the use of hammers and flat chisels to avoid damaging seal elements. If scale prevents removal, clean thoroughly before disassembly. 8) If mechanical seals are used on both ends of the pump, coordinate during assembly and disassembly to prevent neglecting one aspect while attending to another. 9) For mechanical seals that have been in operation, if gland loosening causes seal movement, the stationary and rotating ring parts must be replaced. Do not simply retighten and continue use. Because after loosening, the original operating trajectory of the friction pair changes, easily compromising the sealing integrity of the contact surface.

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