Johnson Pump TG GS2-25 Instruction Manual page 25

Spring ratio – Safety relief valve
TG GS pump size
2-25
3-32
6-40
15-50
23-65
58-80
86-100
185-125
Note!
Spring ratio p/f depends upon the dimensions of the spring. It is recommended to check the
dimensions prior to adjusting the pressure.
When the safety relief valve is not functioning properly, the pump must immediately be taken
out of service. The safety relief valve must be checked by your local supplier.
A.0500.501 – IM-TGGS/05.01 EN (03/2013)
Spring dimensions
Pressure Du d Lo
class mm mm mm bar/mm
4 25.5 3.0 64
6 25.5 3.5 66
10 25.5 4.5 60
4 37.0 4.5 93
6 37.0 4.5 93
10 36.5 6.0 90
4 49.0 7.0 124
6 49.0 7.0 124
10 48.6 8.0 124
4 49.0 7.0 124
6 48.6 8.0 124
10 49.0 9.0 120
p/f
0.26
d
0.43
1.72
0.21
0.21
0.81
0.32
0.32
0.66
Du
0.16
0.33
0.55
25