BEGA BETEX EP320 Serie Instrucciones De Montaje página 5

1. Introduction
1�1 Application
Betex® EP320 and EP420 series electric hydraulic pumps are for driving hydraulic systems.
The pumps are equipped with an on/off switch, emergency stop and remote control. The
pumps are supplied without oil in the reservoir.
1�2 Application areas
Betex® EP320 and EP420 series electric hydraulic pumps are suitable for use in an industrial
environment. The pumps are not suitable for explosive, highly flammable or corrosive
environments. Using the pumps in a medical or humid (>90%) environment is not permitted.
1�3 Principles of operation
Betex® EP320 and EP420 series electric hydraulic pumps work with a displacement
pump which brings the hydraulic oil to a maximum pressure of 700 Bar (10,000 PSI). This
displacement pump is powered by an electrical motor. The electrical energy is converted into
hydraulic energy by the electric hydraulic pump. A pre-mounted valve allows one to connect
the electric hydraulic pump to fittings which convert the hydraulic energy into, for example,
mechanical energy, depending on the application.
2. Safety
2�1 Warnings
• Do not use the electric hydraulic pump in an explosive or highly flammable environment.
• Connecting fittings that are unable to cope with the maximum pressure (700 Bar/10,000
PSI) is not permitted.
• Check whether the pump is safely connected to all the fittings used and whether the
installation can be operated safely before operating the electric hydraulic pump.
• The electric hydraulic pump may not be used outdoors.
2�2 Safety risks
• Pressurized fluid: risk of oil injection in case of a leak.
• Noise level 81dBA
• Electrocution by incorrect earthing of the electric hydraulic pump.
2�3 Safety provisions
• Emergency stop
• On/off switch
• Overpressure valve set to 700 Bar (10,000 PSI)
2�4 Inadvisable use
• Do not use the electric hydraulic pump at pressures higher than 700 Bar (10,000 PSI).
• Do not use the electric hydraulic pump in places where the pump can come into contact
with liquids.
2.5 Safety measures (to be applied by the user)
• When the electric hydraulic pump is used in an installation where something moves in a
vertical plane, hose rupture protection must be fitted directly to the lifting cylinder.
• The electric hydraulic pump must always be properly connected to an earthing
conductor. The electric hydraulic pump may not be turned on when this is not present.
• Electric hydraulic pumps with single-function valves (pumps without a 'D' or 'DS' suffix)
may not be connected to a double-function cylinder, unless measures are taken to
prevent overpressure in the cylinder.
• The complete installation must be checked to see whether it satisfies the minimum safety
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