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Proportional pressure relief valve
Proportional pressure relief valve Proportional pressure relief valve

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS DIMENSIONS HYDRAULIC CONNECTION
Designation Proportional pressure relief valve Working pressure p = 350 bar Cavity drawing according to ISO 7789–18–02–0–98
max
Construction Direct operated Nominal pressure P = 20 bar, 100 bar, 200 bar, 315 bar
N
Mounting Screw-in cartridge construction range 30 M18x1.5
Nominal size M18 x 1,5 according to ISO 7789 Maximum volume flow Q = 8 l/min (p = 20 / 100 bar) s24
N
max
Actuation Proportional solenoid Q = 6 l/min (p = 200 bar) 15
N
max
Ambient temperature -25…+70 °C Q = 3 l/min (p = 315 bar) 68.8 MD=5.5Nm M18x1.5 (2)
max
N
Weight 0,25 kg Minimum volume flow Q = 0,1 l/min
min
MTTFd 150 years Leakage oil See characteristics 29 (1)
Hysteresis ≤ 2 % at optimal dither signal

Repeatability ≤ 1 % at optimal dither signal (1)
Fluid Mineral oil, other fluid on request 40 10 18 50 70 60
Viscosity range 12 mm /s…320 mm /s MD= 1.2Nm Note! For detailed cavity drawing and cavity tools see data
2
2
ELECTRICAL SPECIFICATIONS Temperature range -25…+70 °C (NBR) 10.3 52.7 28.8 sheet 2.13-1001
fluid -20…+70 °C (FKM) 91.8
Protection class IP65
Relative duty factor 100 % DF Contamination Class 18 / 16 / 13
efficiency
Standard nominal 12 VDC, 24 VDC Filtration Required filtration grade ß 6…10 ≥ 75,
voltage see data sheet 1.0-50 PARTS LIST ACCESSORIES
Limiting current at I = 1080 mA (12 VDC) Position Article Description Proportional amplifier Register 1.13
G
50 °C I = 540 mA (24 VDC) 10 256.2418 Proportional solenoid PI29V-G12 Flange body / sandwich plate NG3-Mini Data sheet 2.3-700
G
256.2453 Proportional solenoid PI29V-G24 Threaded body Data sheet 2.9-200
Note! Other electrical specifications see data sheet 1.1-90 15 253.8000 Manual override HB4,5 Technical explanations Data sheet 1.0-100
18 160.2120 O-ring ID 12,42 x 1,78 (NBR) Filtration Data sheet 1.0-50
30 219.2002 Electric plug B (black)
40 249.0006 Socket head screw M3 x 42
PERFORMANCE SPECIFICATIONS 50 160.2156 O-ring ID 15,60 x 1,78 (NBR) MANUAL OVERRIDE
2
Oil viscosity u = 30 mm /s 160.6156 O-ring ID 15,60 x 1,78 (FKM) HB4,5 as standard
60 160.2093 O-ring ID 9,25 x 1,78 (NBR)
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics
red red 160.6092 O-ring ID 9,25 x 1,78 (FKM)
Maximal adjustable pressure Minimal adjustable pressure
70 049.3137 Backup ring rd 10,6 x 13,5 x 1,4
p [bar] p [bar]
350 K0196 15 K0193
300 P N = 315 bar 12 P N = 315 bar
250 P N = 200 bar P N = 100 bar SURFACE TREATMENT SEALING MATERIAL
200 9 P N = 200 bar P N = 20 bar All external parts of the cartridge as well the solenoid coil are NBR or FKM (Viton) as standard, choice in the type code
150 6 ◆
100 P N = 100 bar zinc-nickel coated
500 P N = 20 bar 3
0 0
0 1 2 3 4 5 6 7 8 Q [l/min] 0 1 2 3 4 5 6 7 8 Q [l/min]
STANDARDS INSTALLATION NOTES
p = f (n) Pressure adjustment characteristics Q = f (p) Leakage volume flow characteristic Cartridge cavity ISO 7789 Mounting type Screw-in cartridge M18 x 1,5
red
L
Measured at Q = 1 l/min Solenoids DIN VDE 0580 Mounting position Any, preferably horizontal
p [bar] Q [cm /min] Connection execution D EN 175301 – 803 Tightening torque M = 40 Nm Screw-in cartridge
3
D
350 K0194 40 K0699 Protection class EN 60 529 M = 1,2 Nm solenoid screws
D
300 P N = 315 bar Contamination efficiency ISO 4406
250 30
200 P N = 200 bar 20
150
100 P N = 100 bar 10
50 P N = 20 bar
0 0
0 10 20 30 40 50 60 70 80 90 100 l [%] 0 50 100 150 200 250 300 350 p [bar]

Wandfluh AG Postfach CH-3714 Frutigen
Tel. +41 33 672 72 72 Fax +41 33 672 72 12 sales@wandfluh.com

www.wandfluh.com Illustrations are not binding Data subject to change 2/3 Edition: 19 15 2.3-520 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 19 15 2.3-520 E
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