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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 Pilot operated Tank pressure p = p + 80 bar
T max P
Mounting Screw-in cartridge construction Nominal pressure P = 20 bar, 100 bar, 200 bar, 315 bar 30 M18x1.5
N
Nominal size M18 x 1,5 according to ISO 7789 range s24 M18x1.5
15
Actuation Proportional solenoid Volume flow range Q = 0,3...25 l/min 68.8 MD=5.5Nm
Ambient temperature -25…+70 °C Leakage oil See characteristics (2)
Weight 0,38 kg Hysteresis ≤ 2 % at optimal dither signal 29
MTTFd 150 years Repeatability ≤ 1 % at optimal dither signal (1)
Fluid Mineral oil, other fluid on request
40
Viscosity range 12 mm /s…320 mm /s MD= 1.2Nm 10 18 50 60 70 (1)
2
2
ELECTRICAL SPECIFICATIONS Temperature range -25…+70 °C (NBR) 10.3 76.3 30
fluid -20…+70 °C (FKM) 116.6 Note! For detailed cavity drawing and cavity tools see data
Protection class IP65 Contamination Class 18 / 16 / 13 sheet 2.13-1001
Relative duty factor 100 % DF efficiency
Service life time 10 (number of switching cycles, Filtration Required filtration grade ß 6…10 ≥ 75,
7
theoretically) see data sheet 1.0-50 PARTS LIST ACCESSORIES
Voltage tolerance ± 10 % with regard to nominal voltage Proportional amplifier Register 1.13
Standard nominal 12 VDC, 24 VDC Position Article Description Flange body / sandwich plate NG3-Mini Data sheet 2.3-700
voltage 10 256.2418 Proportional solenoid PI29V-G12
Limiting current at I = 1080 mA (12 VDC) 256.2453 Proportional solenoid PI29V-G24 Threaded body Data sheet 2.9-200
G
50 °C I = 540 mA (24 VDC) 15 253.8000 Manual override HB4,5 Technical explanations Data sheet 1.0-100
G
18 160.2120 O-ring ID 12,42 x 1,78 (NBR) Filtration Data sheet 1.0-50
Note! Other electrical specifications see data sheet 1.1-90
30 219.2002 Electric plug B (black)
40 246.0151 Socket head screw M3 x 50 DIN 912
50 160.2156 O-ring ID 15,60 x 1,78 (NBR)
160.6156 O-ring ID 15,60 x 1,78 (FKM) MANUAL OVERRIDE
PERFORMANCE SPECIFICATIONS 60 160.2093 O-ring ID 9,25 x 1,78 (NBR) HB4,5 as standard
Oil viscosity u = 30 mm /s 160.6092 O-ring ID 9,25 x 1,78 (FKM)
2
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics 70 049.3137 Backup ring rd 10,6 x 13,5 x 1,4
red red
Maximal adjustable pressure Minimal adjustable pressure
p [bar] p [bar]
400 K0249 30 K0250 SURFACE TREATMENT SEALING MATERIAL
P N = 315 bar 25 P N = 100/200/ ◆ All external parts of the cartridge as well the solenoid coil are NBR or FKM (Viton) as standard, choice in the type code
300 20 315 bar zinc-nickel coated
P N = 200 bar P N = 20 bar
200 15
P N = 100 bar 10
100
P N = 20 bar 5
0 0
0 5 10 15 20 25 Q [l/min] 0 5 10 15 20 25 Q [l/min] STANDARDS INSTALLATION NOTES
Cartridge cavity ISO 7789 Mounting type Screw-in cartridge M18 x 1,5
p = f (n) Pressure adjustment characteristics Q = f (p) Leakage volume flow characteristic Solenoids DIN VDE 0580 Mounting position Any, preferably horizontal
red L
Measured at Q = 1 l/min Connection execution D EN 175301 – 803 Tightening torque M = 40 Nm Screw-in cartridge
D
p [bar] Q [cm /min] Protection class EN 60 529 M = 1,2 Nm solenoid screws
3
D
400 K0251 200 K0252 Contamination efficiency ISO 4406
300 P N = 315 bar 150
200 P N = 200 bar 100

100 P N = 100 bar 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 2.3-510 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 19 15 2.3-510 E
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