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4. Technical data
4.1 General technical data SMBM
Table 11
General technical data
Type
2-way flow limiter valve with fixed required value
Material
EN AW-6061-T651, anodized
Mounting position
•
Without filter
Any
•
With filter
Vertical
Flow rate
0.08 to 8.0 l/min; only up to 6.95 l/min for 333 Ipl.
Operating pressure
•
Without attachments
5 to 200 bar
•
With gear-type flow indicator
6 to 50 bar
•
With signal transmitter (24-1072-2125)
5 to 100 bar
•
With electrical changeover valve
5 to 350 bar; with a signal transmitter, the smaller value 5-100
bar applies
System operating pressure
1)
See Note
1)
Required differential pressure between inlet p
1
and outlet p
3
•
Without gear wheel-type flow indicator
≥ 5 bar
•
With gear wheel-type flow indicator
≥ 6 bar
Pumped medium
Mineral oils and synthetic oils
Working viscosity
2
)
20 to 600 mm
2
/s (with cold-start conditions, a switchover to a
lower target volumetric flow is possible (only SMBM-V))
Ambient temperature / storage temperature range
3)
•
Without pulse generator
-20 to +70 °C
•
With pulse generator
-20 to +57 °C
•
With changeover device
-20 to +57 °C
Lubricant temperature range
0 to 90 °C at ambient temperature <60 °C
Measurement resolution / proportional factor
333 pulses per liter (3.0 ml/pulse)
167 pulses per liter (6.0 ml/pulse)
83 pulses per liter (12.0 ml/pulse)
Total weight, modular structure with 1 to 6 flow limiters
(attachments, monitoring - see Chapter 4.2 to 4.5 )
SMBM-X-, see Chapter 6.3.7
SMBM-V-, see Chapter 6.4.8
NOTE
1)
We recommend a system operating pressure of 16 bar for the operation of systems comprised solely of flow limiters and of 22 bar
when downstream metering devices are used. Doing so ensures that brief pressure fluctuations or a loss of pressure caused by the
use of excessively cold oil during start-up will not affect the preset volumetric flow.
2)
We recommend using high-conductivity lubricants (if possible, >1000 pS/m at 20 °C) to minimize the electrostatic charge of the
lubricants.
3)
The surface temperature is dependent on the temperature of the oil that is flowing through the system. The surface temperature at
the mechanical parts takes on the temperature of the oil. The surface temperatures of these devices are to be taken into account
when using electrical sensors/valves.
