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Proportional pressure relief valve
Proportional pressure relief valve

PERFORMANCE SPECIFICATIONS
Oil viscosity u = 30 mm /s
2
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics
red
red
Adjusted at Q = 5 l/min at nominal pressure Minimal adjustable pressure
p [bar] p [bar]
400 K0220 30 K1171
P N = 350 bar
P N = 275 bar 25
300 P N = 350 bar
P N = 200 bar 20 P N = 200/275 bar
200 P N = 160 bar 15 P N = 160 bar
P N = 100 bar 10 P N = 20/63/
100 P N = 63 bar 5 100 bar
0 P N = 20 bar 0
0 25 50 75 100 Q [l/min] 0 25 50 75 100 Q [l/min]

p = f (n) Pressure adjustment characteristics Q = f (p) Leakage volume flow characteristic
red L
Measured at Q = 1 l/min
p [%] Q [cm /min]
3
150 K0694 250 K0685
125 200
100 150
75
50 100
25 50
0 0
0 10 20 30 40 50 60 70 80 90 100 I [%] 0 50 100 150 200 250 300 350 p [bar]

SURFACE TREATMENT SEALING MATERIAL
◆ The cartridge body made of steel and the slip-on coil are NBR or FKM (Viton) as standard, choice in the type code
zinc-nickel coated

STANDARDS INSTALLATION NOTES
Cartridge cavity ISO 7789 Mounting type Screw-in cartridge M22 x 1,5
Solenoids DIN VDE 0580 Mounting position Any, preferably horizontal
Connection execution D EN 175301 – 803 Tightening torque M = 60 Nm Screw-in cartridge
D
Protection class EN 60 529 M = 5 Nm knurled nut
D
Contamination efficiency ISO 4406

ACCESSORIES MANUAL OVERRIDE

Proportional amplifier Register 1.13 None
Electric plug B (black) Article no. 219.2002
Flange body / sandwich plate NG4-Mini Data sheet 2.3-720
Flange body / sandwich plate NG6 Data sheet 2.3-740
Flange body / sandwich plate NG10 Data sheet 2.3-760
Threaded body Data sheet 2.9-200
Technical explanations Data sheet 1.0-100
Filtration Data sheet 1.0-50

www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 19 28 2.3-528 E
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