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Safety instructions
Bosch Rexroth AG, DB20K.1X/...E, RE 25818-B/11.21
2.2 Intended use
The valves comply with safety category B according to EN ISO 13849-1.
Store the safety valve only in a dry and dust-free environment which is free from
etching substances and fumes and which is subject to a low degree of air humidity
and only minor temperature variations. For storage exceeding 12 months, we
recommend filling in clean conservation oil, see also DIN 7716.
The factory corrosion protection is sufficient if the valve is stored under the stated
conditions and if no condensate or leakage water may enter the safety valve.
The safety valve may only be operated with the hydraulic fluids stated in
"Data sheet 25818".
Please consult us for information on the use of the product with other hydraulic
fluids.
The safety valve may only be operated in a technically unobjectionable condition
and it may only be stored, operated and maintained according to the technical data,
operating and environmental conditions indicated in "Data sheet 25818". Particularly
the limit values specified in the technical data must not be exceeded.
The valve may only be used with other connection, application and performance
data than those defined in these operating instructions with the written approval by
Bosch Rexroth AG.
Changes at the product are only admissible within the scope specified in these
operating instructions.
Any safeguards fitted by Bosch Rexroth AG have to be present, properly installed and
fully functional, unless this is not appropriate for setup or maintenance operation.
Their position must not be changed; they must not be circumvented or made
ineffective.
2.3 Improper use
The safety valve is not suitable for use in potentially explosive environment; it must
not be used there.
The safety valve may not be used if the maximum possible flow of the system in all
imaginable operating states exceeds the value indicated as maximum admissible flow
in the technical data for the relevant valve type. For the maximum admissible flow,
please refer to the characteristic curves in "Data sheet 25818 and/or table 8".
The max. admissible counter pressure must not be exceeded. Also refer to
"Data sheet 25818".
The safety valve must not be used as high-response valve.
The safety valve must not be operated with corrosive operating media or in corrosive
environments.
A sealing at the safety valve must not be removed by the machine end-user.
Only persons authorized by accredited testing authorities according to the EU
Pressure Equipment Directive may remove the lead seal or re-adjust the response
pressure.
The safety valve must not be disassembled to an extent exceeding the one specified
in these operating instructions.
Name plates and product identifications may not be overlacquered but must be kept
in a readable condition.
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