German birkosit dichtungskitt seals, birkosit dichtungskitt models, birkosit dichtungskitt prices

birkosit dichtungskitt seals are typical representatives of oil seals. The term 'oil seal' generally refers to skeleton oil seals. The function of an oil seal is to isolate lubricated components in transmission parts from the external environment, preventing lubricating oil leakage. The skeleton acts like rebar in concrete components, providing reinforcement and enabling the oil seal to maintain its shape and tension. Based on structural form, they can be divided into single-lip skeleton oil seals and double-lip skeleton oil seals. The secondary lip of a double-lip skeleton oil seal serves as a dust shield, preventing external dust and impurities from entering the machine interior. Based on skeleton type, they can be divided into internally covered skeleton oil seals, externally exposed skeleton oil seals, and assembled oil seals. Based on operating conditions, they can be divided into rotating skeleton oil seals and reciprocating skeleton oil seals. They are used in gasoline engine crankshafts, diesel engine crankshafts, gearboxes, differentials, shock absorbers, engines, axles, and other locations.

birkosit dichtungskitt seal features

1) No need to measure the seal working length during installation; 2) The shaft can be adjusted at any time; 3) No leakage occurs at startup because the seal has been pre-tested; 4) Installation only requires tightening the seal cover bolts, making it easy to ensure assembly quality; 5) Protects the sealing surface from contamination by debris or damage due to operational errors before installation or startup; 6) Can be readjusted after thermal expansion of the machinery; 7) Self-centering through fit; 8) Seals can be easily removed for cleaning and inspection without disassembling the pump equipment. API682 standard recommends cartridge mechanical seals for all mechanical seals.

birkosit dichtungskitt seal startup preparation

1) Comprehensively check whether the mechanical seal, auxiliary devices, and pipeline installations are complete and comply with technical requirements. 2) Perform a static pressure test before starting the mechanical seal to check for leakage. If there is significant leakage, identify the cause and eliminate it. If ineffective, disassemble for inspection and reinstall. The general static test pressure is 2~3 kg/cm². 3) Rotate the pump according to its direction to check if it moves smoothly and evenly. If rotation is difficult or stuck, check for errors in assembly dimensions and reasonable installation.

birkosit dichtungskitt seal installation technical requirements

Mechanical seals are high-precision mechanical components, and correct installation and operation significantly impact their service life. We generally follow standards specified 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 dynamic ring seal location, not greater than 0.06 mm; 3) Axial shaft movement must not exceed ±0.5 mm; if equipped with a shaft sleeve, the 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: face runout<0.05, radial runout<0.10) 5) Concentricity tolerance of the gland (static ring seat) sealing spigot relative to the shaft centerline is 0.05 mm; 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) Exercise care when installing or removing mechanical seals; strictly prohibit using 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 avoid neglecting one side. 9) For operated mechanical seals, if gland loosening causes seal movement, the stationary and rotating ring parts must be replaced and should not be retightened for continued use. Because loosening changes the original operating trajectory of the friction pair, easily compromising the sealing integrity of the contact surface.

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