Hydraulic Filter | Hydraulic Filtration | Fleetguard Filters Pvt. Ltd.

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HYDRAULIC FILTRATION
Fleetguard Filters Private Limited
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BASICS OF HYDRAULICS
HYDRAULICS Uses principle of the flow and
pressure of fluids to do the work.
PASCALS LAW
Pressure applied on a confined fluid is
transmitted undiminished in all directions and
acts with equal force on equal areas and at right
angles to them.
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BASICS OF HYDRAULICS
Close loop System
Open loop System
Oil Flow path Reservoir - Pump System
Re-circulates to pump. Additional pump is
required to replenish the oil in system
Oil Flow path Reservoir Pump System
Reservoir
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BASICS OF HYDRAULICS
Major Components of Hydraulic System

• Prime mover Electric Motor / IC Engine
• Pump Gear Pump, Vane pump, Piston pump.
• Control Valves Direction Control, Flow control,
  Pressure control Valves
• Accumulators Bladder type, Piston type,
  Diaphragm type.
• Filters Pressure line, Off line, Return,
  Suction filters.
• Actuators Cylinders , Hydraulic motors.

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NEED OF HYDRAULIC FILTRATION

• Looking at the modern machinery requirements,
  hydraulics play a very active crucial role in
  machine drives. As the high-precision machinery
  uses advanced hydraulic components like axial
  pumps proportional valves, maintenance of such
  elements is the most vital necessity.
• In hydraulics more than 80 of problems are due
  to contaminated fluid so it is important to keep
  system fluid very clean free of contaminants.

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BASICS of HYDRAULIC FILTRATION
Hydraulic Filtration It is the process of
separation of contamination (unwanted/harmful/fore
ign particles) from the hydraulic oil. Filter is
a component of Hydraulic System incorporated to
maintain fluid cleanliness as per pre-determined
design needs.
Function of Filter It keeps the oil clean by
separating the particulate contaminants, dust and
moisture.

• Types of Hydraulic Filter
• Suction Strainer/Filter
• Return Line Filter
• Pressure-line Filter
• Breather Filter

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HYDRAULIC FILTRATION
Off-line Filtration

• Applications
• Applications where contamination is very high and
  in-built system filters are inadequate to
  maintain system cleanliness level.
• Systems with high volume of oil. e.g. Turbine
  Lube System, Steel Mills, Generator Systems.

• Features
• This is independent of the main hydraulic system.
• The filter elements can be replaced without
  stopping the main system.
• Single offline filtration unit can be used in
  multiple systems.

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HYDRAULIC FILTRATION
In-line Filtration

• Tank Top Filters
• To block the system generated contaminants
  entering into the reservoir.
• Tank top filters are low pressure economical .
• Filters mounted on tank top require less space.

• Pressure Line Filters
• Pressure line filters are used in the hydraulic
  system to protect critical components e.g.
  proportional valves and servo valves.
• These filters are used for the pressure range
  from 40 bar to 600 bar.

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HYDRAULIC FILTRATION

• Return Line Filters
• The systems with variable displacement pumps and
  hydraulic motors requires return line filters.
• These filters prevent the particulate
  contamination from entering the oil tank.
• The return line filter are low pressure filters.
• Working pressure up to 10 bar.

• Spin on Filters
• Spin on filters are low pressure hydraulic
  filters used in return line or as suction line
  filters in hydraulic systems.
• These filters are convenient to replace as
  compare to cartridge type filters.
• Working pressure up to 30 bar.

• Air Breathers
• Breathers prevent particulate contamination
  present in the air from entering in to the oil
  tank.
• These are mounted on hydraulic oil tank.

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HYDRAULIC FILTRATION By Fleetguard Filters
Private Limited For more information visit
us www.fleetguard-filtrum.com