SKF KFGL - Pressure Regulating Valve

P
A
P
R
R
A
4.3.4 Pressure regulating valve
A pressure regulating valve (1) protects the
entire lubrication system against excessive
system pressure. It is mounted directly on the
pump element (2). The cracking pressure set
for this valve is 300 bar or 200 bar, depending
on the valve design. If a blocked feeder or a
lubrication point causes operating pressure to
rise above 300 (200) bar, the valve opens, fol-
lowed by a noticeable discharge of grease (3).
This protects the pump unit against damage.
At the same time, it functions as a way of vis-
ually monitoring the system. A further option
are pressure regulating valves with an emer-
gency lubricant nipple. These can be actuated
manually to provide the lubrication system with
adequate lubricant in case of power failure or a
defective pump.
Connections for pressure regulating valves
A Connection for pipe Ø
P Pipe thread for pump element
R Grease discharge at overpressure
Cracking pressure 300 ± 20 bar
Cracking pressure 200 ± 20 bar
2
1
3
Optional
Emergency
lubricant nipple
Connection for pressure regulating valve
Pressure regulating valve, Fig. 10
KFG KFGS KFGL KFGC
Pressure regulating valve
Pressure regulating valve without
lubricant nipple
Tube Ø Cracking pressure Order number
[mm] [bar]
6 300 161-210-012
6 200 161-210-049
8 300 161-210-018
8 200 161-210-050
10 300 161-210-035
10 200 161-210-051
G 1/4 300 161-210-036
G 1/4 200 161-210-059
Pressure regulating valve with
lubricant nipple
6 300 161-210-014
8 300 161-210-025
Pressure regulating valve with
pressure gauge
6 300 161-210-046
8 300 161-210-047
10 300 161-210-048
Page 26
EN
Assembly instructions