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Assembly
Bosch Rexroth AG, DBA...1X/...E, RE 25880-B/10.18
7.8 Additional M port
Safety valves are equipped with an additional connection port in the P channel. In
the state as delivered, the port is closed by a plug screw. When the plug screw is
removed, a pressure gauge for pressure indication can be connected to the M port.
Always use the tightening torque specified by the pressure gauge manufacturer to
install the pressure gauge.
To seal the port again using the plug screw, the screw must be tightened using the
tightening torque specified in table 13.
Table 13: M port, information on the plug screw
Valve type + size
Component marking
Fitting of hydraulic connections,
valves with pipe thread according
to EN ISO 228 Part 1
Tightening torque
1)
, related to the
max. operating pressure
1)
Friction coefficient µ = 0.09 to 0.14
DBA30...1X/...E
1150
G 1/4
30 ± 3 Nm
DBA40...1X/...E
1150
G 1/4
30 ± 3 Nm
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