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Selection considerations of seals in the hydraulic system
Date:2015-04-11 16:40:18    Browsed:216    Source:www.othchina.com

  Temperature

  It's rather difficult to describe the Max.Temp and minimum allowable temperature of one kind sealing material, Because this is the result of the combined effects of a number of factors. For the different temperature of piston seal and rod operating, we need To make a difference to choose them.

  Pressure

  The pressure high and low,The length of the pressure cycle changes, Has a great influence of broken on sealing(such as extrusio).

  The higher the pressure,Other factors influence the performance of the larger pair of seals, such as temperature, speed, the material of sealing element, the gap between piston and cylinder, The gap between the piston and the cylinder head.

  Friction

  Friction seals and sealing surfaces depends on many factors:

  The surface roughness, the material properties of the surface, pressure, medium,temperature, seal, Type and the motion velocity of the seal.

  Surface treatment

  Experience has shown that the surface characteristics of the cylinder piston and rod has a very big impact on the life of the seal, Surface characteristics common defined by value of the surface roughness Ra, Ra is the surface shape of the arithmetic mean of the absolute deviation from the center line. But the value But these values can not fully express the influence of surface condition on the seal, This is because even under the same roughness, different characteristics of the surface shape of the seal may lead to different levels of wear of the seal.

  More about Othello hydraulic sealing element, Please contact: oth01@othchina.com oth02@othchina.com

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