German VOLKMANN seals VOLKMANN models VOLKMANN prices

VOLKMANN seals are a common term for general seals, simply referring to lubricating oil seals. They are mechanical components used to seal grease (oil is the most common liquid in transmission systems, and also refers to general liquids), isolating lubricated parts from output parts in transmission components 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 fully covered by rubber. Generally, when people refer to oil seals, they often mean this type of tc skeleton oil seal.

VOLKMANN seal features

1) No need to measure the working length of the seal during installation; 2) The shaft can be adjusted at any time; 3) There will be no leakage issues during startup because the seal has been pre-tested; 4) Only need to tighten the bolts on the sealing cover during installation, ensuring easy assembly quality; 5) Protects the sealing surface from contamination or damage due to operational errors before installation or startup; 6) Can be readjusted after thermal expansion of machinery equipment; 7) Self-centering through fit; 8) Easy to remove the seal for cleaning and inspection without disassembling the pump equipment. All mechanical seals recommended by the API682 standard use cartridge-type mechanical seals.

VOLKMANN seal startup preparation work

1) Thoroughly inspect the mechanical seal, as well as auxiliary devices and pipeline installations, to ensure completeness and compliance with technical requirements. 2) Conduct a static pressure test before starting the mechanical seal to check for leaks. If there is significant leakage, identify the cause and attempt to eliminate it. If ineffective, dismantle and reassemble. Generally, the static pressure test uses 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 whether the assembly dimensions are incorrect or if the installation is unreasonable.

VOLKMANN seal precautions

1) Due to design and structural reasons, high-speed shafts should use high-speed oil seals, while low-speed shafts should use low-speed oil seals. Low-speed oil seals cannot be used on high-speed shafts, nor vice versa. 2) Ambient temperature: In higher operating temperatures, select polyacrylate or silicone, fluorine, or silicon-fluorine rubber. Efforts should be made to reduce the oil temperature in the tank. In lower operating temperatures, select cold-resistant rubber. (3) Pressure: General oil seals have poor pressure resistance, and excessive pressure may deform them. Under conditions of excessive pressure, use pressure-resistant support rings or reinforced pressure-resistant oil seals. 4) Eccentricity during installation: Excessive eccentricity between the oil seal and the shaft reduces sealing performance, especially at high rotational speeds. If eccentricity is too large, consider using an oil seal with a "W" cross-section. 5) Shaft surface finish directly affects the lifespan of the oil seal; smoother surfaces result in longer lifespans. 6) Ensure that there is a certain amount of lubricating oil on the lip of the oil seal. 7) Pay special attention to preventing dust from entering the oil seal.

Weidou Intelligent Technology specializes in selling German VOLKMANN seals, VOLKMANN O-rings, VOLKMANN sealing strips, VOLKMANN pipe seals, VOLKMANN cable seals, VOLKMANN rubber seals, VOLKMANN mechanical seals, VOLKMANN gaskets, VOLKMANN oil seals, VOLKMANN shaft seals, VOLKMANN metal seals, VOLKMANN high-pressure seals, VOLKMANN spiral seals, VOLKMANN centrifugal seals, VOLKMANN sealing rings, all original imports from Germany. Welcome inquiries and orders from customers.