German FLUITEN seals FLUITEN models FLUITEN prices

FLUITEN seals are sealing devices installed to prevent leakage between the pump shaft and the housing. Common types of shaft seals include packing seals, mechanical seals, and hydrodynamic seals. The shaft seal of a reciprocating pump is usually a packing seal. When transporting media where leakage is not permitted, a diaphragm reciprocating pump can be used. The shaft seals of rotary pumps (including vane pumps, rotor pumps, etc.) mainly include packing seals, mechanical seals, and hydrodynamic seals. The shaft seal of a reciprocating pump is usually a packing seal. When transporting media where leakage is not permitted, a diaphragm reciprocating pump can be used. The shaft seals of rotary pumps (including vane pumps, rotor pumps, etc.) mainly include packing seals, mechanical seals, and hydrodynamic seals.

FLUITEN seal principle

Since there is an oil film controlled by the lip of the oil seal between the oil seal and the shaft, this oil film has fluid lubrication characteristics. Under the action of liquid surface tension, the stiffness of the oil film causes the end in contact with air to form a meniscus, preventing the leakage of the working medium and thereby achieving sealing of the rotating shaft. The sealing capability of an oil seal depends on the thickness of the oil film on the sealing surface; if the thickness is too great, the oil seal will leak; if the thickness is too small, dry friction may occur, causing wear on the oil seal and shaft; if there is no oil film between the sealing lip and the shaft, it is easy to cause heating and wear. Therefore, during installation, some oil must be applied to the sealing ring, and it must be ensured that the skeleton oil seal is perpendicular to the shaft axis. If it is not perpendicular, the sealing lip of the oil seal will drain the lubricating oil from the shaft, which will also lead to excessive wear of the sealing lip. During operation, it is ideal for a small amount of lubricant in the housing to seep out slightly to achieve the state of forming an oil film at the sealing surface.

FLUITEN seal applications

Skeleton oil seals are widely used in industries such as aviation, automotive, motorcycles, railways, vehicles, ships, home appliances, and construction machinery. They are suitable for sealing rotating and reciprocating motions. Installed on various heavy-duty engines, gearboxes, axles, ships, cylinders, and other parts. Mainly prevents the penetration of sealed media (gas, liquid) and the entry of external foreign matter into the body. Precautions: The pressure-bearing range of ordinary oil seals is very limited, generally 0.03 MPa. This pressure is generally formed by the height difference of the lubricating oil itself. If higher pressure sealing is required, high-pressure oil seals (generally capable of withstanding up to 1 MPa pressure) or other sealing forms should be selected.

FLUITEN seal installation precautions

1) During installation, pay close attention to avoid installation deviations generated during the process. Tightening the gland should be performed after coupling alignment. Bolts should be tightened evenly to prevent skewing of the gland face. Check each point with a feeler gauge; the error should not exceed 0.05 mm. Check the fit clearance (i.e., concentricity) between the gland and the outer diameter of the shaft or shaft sleeve. It should be uniform around the circumference. Check each point with a feeler gauge; the allowable error should not exceed 0.01 mm. 2) Spring compression must be carried out according to regulations. Excessive or insufficient compression is not allowed. The required error is 2.00 mm. Excessive compression will increase the specific pressure on the face, accelerating face wear. Insufficient compression will result in inadequate specific pressure, failing to achieve a sealing effect. 3) After installing the moving ring, it should automatically spring back when pressed against the spring. 4) Positional requirements during installation: To ensure stable operation, long service life, and low leakage performance of the mechanical seal, it is very important to install it correctly on the machine. When installing the mechanical seal on the machine, compare it carefully with the general assembly drawing before installation to confirm that all parts are ready. At this time, pay attention to any abnormalities such as scratches or damage on the sealing faces of the friction pair and sealing rings. Also check for scratches on the surfaces of the shaft or shaft sleeve in contact with packing, sealing rings (O rings), flanges, and other components. If any abnormalities are found, they must be replaced or repaired before use. During actual installation, do not bring more parts than necessary to the site. In this way, if there are remaining parts after installation, it indicates that some parts were missed during installation; if parts are insufficient, it means that parts were assembled in unnecessary places, thus serving as a self-check during installation.

Weidou Intelligent Technology professionally sells German FLUITEN seals, FLUITEN sealing rings, FLUITEN sealing strips, FLUITEN pipe seals, FLUITEN cable seals, FLUITEN rubber seals, FLUITEN mechanical seals, FLUITEN gaskets, FLUITEN oil seals, FLUITEN shaft seals, FLUITEN metal seals, FLUITEN high-pressure seals, FLUITEN spiral seals, FLUITEN centrifugal seals, FLUITEN sealing rings, FLUITEN original imports from Germany. Welcome customers to inquire and order.