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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 = 400 bar Cavity drawing according to ISO 7789–33–02–0–98
max
Construction Pilot operated Tank pressure p = p + 15 bar
T max P s32 M33 x 2
Mounting Screw-in cartridge construction Nominal pressure P = 100 bar, 200 bar, 275 bar, 350 bar
N
Nominal size M33 x 2 according to ISO 7789 range 15 M33x2
Actuation Proportional solenoid Volume flow range Q = 5…230 l/min 78.2 MD=5.5Nm (2)
Ambient temperature -25…+70 °C Leakage oil See characteristics 37.1 (2)
Weight 0,70 kg Hysteresis ≤ 4 % at optimal dither signal (1)
MTTFd 150 years Repeatability ≤ 2 % at optimal dither signal W=
Fluid Mineral oil, other fluid on request (1)
12
Viscosity range 12 mm /s…320 mm /s MD=5Nm 17 10 18 50 70 60 (1)
2
2
Temperature range -25…+70 °C (NBR) 86.1 51.8
ELECTRICAL SPECIFICATIONS fluid -20…+70 °C (FKM) 144.1 Note! For detailed cavity drawing and cavity tools see data
Protection class Connection execution D: IP65 Contamination Class 18 / 16 / 13 HB0 sheet 2.13-1041
Connection execution J: IP66 efficiency 15
Connection execution G: IP67 and IP69K Filtration Required filtration grade ß 6…10 ≥ 75, MD= 9.5Nm
Relative duty factor 100 % DF see data sheet 1.0-50
Standard nominal 12 VDC, 24 VDC 77.3
voltage 35
Limiting current at I = 1320 mA (U = 12VDC) M =
N
G
50 °C I = 660 mA (U = 24VDC)
G N
10
Note! Other electrical specifications see data sheet 1.1-173
(slip-on coil W) and 1.1-174 (slip-on coil M)
PARTS LIST ACCESSORIES
Position Article Description Proportional amplifier Register 1.13
10 206.2… W.S37 / 19 x 50 Electric plug B (black) Article no. 219.2002
PERFORMANCE SPECIFICATIONS 260.5… M.S35 / 19 x 50 Threaded body Data sheet 2.9-200
Oil viscosity u = 30 mm /s
2
12 154.2700 Knurled nut Technical explanations Data sheet 1.0-100
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics 15 253.8000 HB4,5 manual override Hydraulic fluids Data sheet 1.0-50
red
red
Maximal adjustable pressure Minimal adjustable pressure 239.2033 HB0 Screw plug Filtration Data sheet 1.0-50
p [bar] p [bar] 17 160.2187 O-ring ID 18,72 x 2,62 (NBR)
400 K0731_1 P N = 350 bar 20 K0732_1 P N = 350 bar
P N = 275 bar 18 160.2170 O-ring ID 17,17 x 1,78 (NBR)
P N = 275 bar P N = 200 bar
300 15 50 160.2298 O-ring ID 29,82 x 2,62 (NBR) MANUAL OVERRIDE
P N = 200 bar 160.6296 O-ring ID 29,82 x 2,62 (FMK)
200 10 P N = 100 bar HB4,5
60 160.2219 O-ring ID 21,89 x 2,62 (NBR)
P N = 100 bar Optionally: Screw plug (HB0), no actuation possible
100 5 160.6216 O-ring ID 21,89 x 2,62 (FKM)
0 0 70 049.3277 Backup ring rd 22,5 x 27 x 1,4
0 50 100 150 200 250 Q [l/min] 0 50 100 150 200 250 Q [l/min]

SURFACE TREATMENT SEALING MATERIAL
p = f (n) Pressure adjustment characteristics Q = f (p) Leakage volume flow characteristic
red L The cartridge body, the slip-on coil and the armature tube are NBR or FKM (Viton) as standard, choice in the type code
Measured at Q = 30 l/min ◆
zinc-nickel coated
p [bar] Q [cm /min]
3
400 K0733_1 P N = 350 bar 400 K0734_1
STANDARDS INSTALLATION NOTES
300 P N = 275 bar 300
Cartridge cavity ISO 7789 Mounting type Screw-in cartridge M33 x 2
200 P N = 200 bar 200 Solenoids DIN VDE 0580 Mounting position Any, preferably horizontal
100 P N = 100 bar 100 Connection execution D EN 175301 – 803 Tightening torque M = 80 Nm Screw-in cartridge
D
Protection class EN 60 529 M = 5 Nm knurled nut
D
0 0 M = 9,5 Nm HB0
0 10 20 30 40 50 60 70 80 90 100 l [%] 0 50 100 150 200 250 300 350 p [bar] Contamination efficiency ISO 4406 D
M = 5,5 Nm HB4,5
D
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: 17 44 2.3-551 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 17 44 2.3-551 E
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