Bosch Rexroth M SED 6 VE1 Series, Руководство пользователя

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M-.SED 6...VE1... | RA 22049-VE1-B2 10 /20 Bosch Rexroth AG | Hydraulics
5.2.1 Requirements on the valve subplate
WARNING
Explosion hazard!
If the following minimum values are not observed, there
is a risk of excessive heating of the valve solenoid and
loss of explosion protection.
➢
Thermal conductivity: At least 38 W/mK
➢
Minimum size L x W x H with individual assembly:
64 × 58 × 25 mm,
for recommended subplates, see "12.1 Available
accessories"
➢
Minimum cross-section W × H of the manifold in case of
bank assembly of several valves: 85 × 60 mm
➢
Minimum distance between the longitudinal valve axes in
case of the bank assembly of several valves: 55 mm
5.2.2 Changes at the surface protection of
the valve
WARNING
Explosion hazard!
The valve solenoid is equipped with a suitable surface
protection at the factory.
The valve solenoid must not be painted or otherwise
coated with non-conductive substances!
Any change at the surface protection of the valve sole-
noid will lead to loss of the explosion protection!
5.2 Special residual risks and
protective measures
WARNING
Danger zone Residual risk Protective measure(s), safety instruction
Valve Loss of explosion protection
due to overheating
Observe the specified minimum distance when installing several valves
in a valve battery.
Observe the specified minimum dimensions and minimum heat con-
ductivity of the valve subplate.
Make sure that the heat dissipation of the valve is not impeded.
See "5.2.1 Requirements on the valve subplate".
Observe the "special conditions for safe use" in the "
Data sheet".
Valve solenoid Risk of burning from
hot surfaces
Provide for a suitable touch guard.
Allow the valve solenoid to cool down to room temperature before
touching it directly during maintenance works. Put on heat-protective
gloves before touching it, if necessary.
5.2.3 Modifications
WARNING
Modifications exceeding the extent described in these
operating instructions are not permitted.
5.2.4 Note on the valve use
Observe the following information during the project planning:
WARNING
During operation, the surface temperature of the valve
solenoid exceeds 50 °C. Provide for suitable and satis-
factory touch guard.
Be aware of possible pressure intensification if the
valve is connected to the chamber on the piston rod
side of a differential cylinder. If the outflow of the
hydraulic fluid from this chamber is obstructed, pres-
sure on the cylinder may result in a pressure intensifica-
tion that may damage the cylinder chamber, supply line,
and valve.
Make sure that there is adequate mechanical protection
against any high-pressure water jet that may be used
during cleaning.