German Eriks seals Eriks models Eriks prices

Eriks seals are typical representatives of oil seals; generally, the term "oil seal" refers to skeleton oil seals. The function of an oil seal is generally to isolate components requiring lubrication in transmission parts from the external environment, preventing lubricating oil leakage. The skeleton acts like reinforcing steel in concrete components, providing reinforcement and enabling the oil seal to maintain its shape and tension. According to 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 a dust-proof function, preventing external dust, impurities, etc., from entering the machine interior. According to skeleton type, they can be divided into inner-covered skeleton oil seals, exposed skeleton oil seals, and assembled oil seals. According to operating conditions, they can be divided into rotating skeleton oil seals and reciprocating skeleton oil seals. Used for gasoline engine crankshafts, diesel engine crankshafts, gearboxes, differentials, shock absorbers, engines, axles, and other parts.

Eriks 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) During installation, only the sealing cover bolts need to be tightened, 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) Easy to remove the seal for cleaning and inspection without disassembling the pump equipment. The API682 standard recommends cartridge mechanical seals for all mechanical seals.

Eriks seal startup preparation

1) Comprehensively check whether the mechanical seal, as well as 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 this is ineffective, disassemble, inspect, and reinstall. Generally, the static pressure test pressure is 2~3 kg/cm². 3) Rotate the pump according to its direction of rotation to check if it is light and uniform. If rotation is difficult or stuck, check whether assembly dimensions are incorrect or installation is unreasonable.

Eriks seal failure causes

Mechanical seal failures are generally discovered only after phenomena such as abnormal leakage, abnormal wear, or abnormal torque appear. The causes of failure can be broadly categorized into the following four aspects: 1) Incorrect design and selection of the mechanical seal; 2) Poor quality of the mechanical seal; 3) The precision of the machine using or installing the mechanical seal does not meet requirements; 4) Incorrect machine operation.

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