How to choose the seal ring for hydraulic pump?？
Hydraulic fluid seals play an important role in a variety of equipment, from tractors, excavators and other off-road equipment to manufacturing equipment such as injection molding machines and compressors. This requires the seal ring to have reliability, durability, can adapt to a variety of harsh working conditions.
Let's take the seal ring of hydraulic pump as an example:
1.rive shaft
The external drive shaft of the axial piston pump provides the rotary force needed to drive the pump. No leakage while the pump is running. Radial oil seal: during the operation of the pump, it can prevent oil leakage on the transmission shaft and prevent dust from entering.
2.Precise positioning of piston
In axial piston pumps with variable displacement, the swash plate Angle can be adjusted by accurately positioning the piston. Because the flow rate of the pump is determined by the swash plate Angle, precise control of the position is crucial.
Turcon®GlydRing® : Low friction, wear resistant seals allow for long, smooth, continuous operation of the precisely positioned cylinders.
3.the material
Choosing the right sealing material makes the sealing system more efficient, and hydrodynamic component manufacturers can choose the material best suited to their needs.
NBR
NBR mainly used in mineral oils and greases and usually has good mechanical properties.Ambient temperature: -30°C to +100°C/-22°F to +212°F
HNBR
HNBR often used in high temperature applications because of its excellent wear resistance and good mechanical properties.Ambient temperature: -30°C to +140°C/-22°F to +284°F
FKM
FKM famous for its excellent resistance to fuel, oil, corrosive media, ozone, weathering and ageing. The chemical tolerance and flexibility of FKM may vary depending on its structure, fluorine content, and degree of vulcanization.Ambient temperature: -20°C to +200°C/-4°F to +392°F,The highest in the short term is +230°C/+446°F
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