Page 969 - Softbound_Edition_19_en

Proportional pressure relief valve
Proportional pressure relief valve

PERFORMANCE SPECIFICATIONS EXECUTION L9 (MEASURED AT 40 °C)
Oil viscosity u = 30 mm /s
2
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics
red
red
Maximal adjustable pressure Minimal adjustable pressure
p [bar] p [bar]
400 K1003 40 K1004 P N = 250 bar
P N = 160 bar
P N = 280 bar
300 30 P N = 80 bar
P N = 250 bar
P N = 20 bar
200 20
P N = 160 bar
100 P N = 80 bar 10
P N = 280 bar
P N = 20 bar
0 0
0 5 10 15 20 25 Q [l/min] 0 5 10 15 20 25 Q [l/min]

p = f (n) Pressure adjustment characteristics Δp = f (Q) Leakage volume flow characteristics
red
Measured at Q = 1 l/min Q [cm /min]
3
p [%] 40 K0791
100 K1005
30
80
20
60
40 10
20 0
0 0 50 100 150 200 250 300 350 p [bar]
0 20 40 60 80 100 l [%]

PERFORMANCE SPECIFICATIONS EXECUTION L15 / L17 (MEASURED AT 50 °C)
Oil viscosity u = 30 mm /s
2
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics
red red
Maximal adjustable pressure Minimal adjustable pressure
p [bar] p [bar] P N = 315 bar
400 K0999 40 K1001 P N = 200 bar
P N = 350 bar
300 P N =315 bar 30 P N = 100 bar
200 P N = 200 bar 20 P N = 20 bar
100 P N = 100 bar 10 P N = 350 bar
P N = 20 bar
0 0
0 5 10 15 20 25 Q [l/min] 0 5 10 15 20 25 Q [l/min]

p = f (n) Pressure adjustment characteristics Δp = f (Q) Leakage volume flow characteristics
red
Measured at Q = 1 l/min Q [cm /min]
3
p [%] 40 K0791
100 K1002
30
80
20
60
40 10
20 0
0 0 50 100 150 200 250 300 350 p [bar]
0 20 40 60 80 100 l [%]

www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 21 21 2.3-547 E
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