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Proportional pressure reducing valve
Proportional pressure reducing valve Proportional pressure reducing valve

TYPE CODE PERFORMANCE SPECIFICATIONS EXECUTION L9 (MEASURED AT 40 °C)
2
M V B PM33 - - / / - # Oil viscosity u = 30 mm /s
Pressure reducing valve p = f (Q) Pressure volume flow characteristics p = f (n) Pressure adjustment characteristics
red
red
Pilot operated Maximal adjustable pressure Measured at Q = 1 l/min (static)
p [bar] p [%]
Proportional, explosion proof execution Ex d 400 K4107 100 K1005
Screw-in cartridge M33 x 2 300 P N red = 280 bar 80
60
P N red = 220 bar
Execution L9 L15 / L17 200 P N red = 160 bar 40
Nominal pressure range p N red [bar] 80 220 100 275
160 280 200 350 100 P N red = 80 bar 20
0 0
Nominal voltage U 12 VDC G12 160 120 80 40 0 40 80 120 160 0 20 40 60 80 100 l [%]
N
24 VDC G24 A  T Q [l/min] P  A

Ambient temperature up to:
Nominal power P 9 W L9 40 °C or 90 °C
N
15 W L15 70 °C
17 W L17 70 °C (only UL / CSA)
PERFORMANCE SPECIFICATIONS EXECUTION L15 / L17 (MEASURED AT 50 °C)
2
Certification ATEX, IECEx, EAC, Oil viscosity u = 30 mm /s
CCC UL / CSA UL p = f (Q) Pressure volume flow characteristics p = f (n) Pressure adjustment characteristics
Australia AU MA MA red red
Maximal adjustable pressure Measured at Q = 1 l/min (static)
Sealing material NBR p [bar] p [%]
FKM (Viton) D1
400 K0658_1 100 K1002
Options without 300 P N red = 350 bar 80
amplifier M248 P N red = 275 bar 60
200 P N red = 200 bar
Design index (subject to change) 40
2.3-654 100 P N red = 100 bar 20
0 0
HYDRAULIC SPECIFICATIONS ELECTRICAL SPECIFICATIONS 160 120 80 40 0 40 80 120 160 0 20 40 60 80 100 l [%]
A  T Q [l/min] P  A
Working pressure p = 400 bar Protection class IP65 / 66 / 67
max
Nominal pressure Execution L9 Relative duty factor 100 % DF
range P N red = 80 bar, 160 bar, 220 bar, 280 bar Voltage tolerance ± 10 % with regard to nominal voltage
Execution L15 / L17 Standard nominal 12 VDC, 24 VDC
P = 100 bar, 200 bar, 275 bar, 350 bar PERFORMANCE SPECIFICATIONS
N red voltage
Volume flow range Q = 0…160 l/min Limiting current at… °C L9, 40 °C Oil viscosity u = 30 mm /s
2
Leakage oil See characteristics I = 625 mA (12 VDC) p = f (Q) Pressure volume flow characteristics Q = f (p) Leakage volume flow characteristic
G
Hysteresis ≤ 5 % at optimal dither signal I = 305 mA (24 VDC) red Minimal adjustable pressure L A (1) → T (3) (Druck in P (2) = 350 bar)
G
Repeatability ≤ 2 % at optimal dither signal L15 / 17, 50 °C *Consumer resistance depending on the system
Fluid Mineral oil, other fluid on request I = 950 mA (12 VDC) p [bar] Q [cm /min]
3
G
Viscosity range 12 mm /s…320 mm /s I = 450 mA (24 VDC) 32 K0659 1000 K0792
2
2
G
Temperature range Operation as T6 L15 / 17, 70 °C 24 800
fluid NBR -25…+40 °C (L9) I = 910 mA (12 VDC) 600
G
FKM -20…+40 °C (L9) I = 420 mA (24 VDC) 16
G
Operation as T4 Standard nominal 9 W, 15 W, 17 W 8  ∗ 400
NBR -25…+70 °C (L9 or L15 / L17) power 200
FKM -20…+70 °C (L15 / L17) Temperature class Nominal power 9 W: T1…T6 0 0
0
80 120 160
80
FKM -20…+70 °C (L9) Nominal power 15 W / 17 W: T1…T4 160 120 A  T 40 Q [l/min] 40 P  A 0 50 100 150 200 250 300 350 p [bar]
Contamination Class 18 / 16 / 13 Note! Other electrical specifications see data sheet 1.1-183
efficiency and 1.1-184
Filtration Required filtration grade ß 6…10 ≥ 75,
see data sheet 1.0-50

www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 21 21 2.3-654 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 21 21 2.3-654 E
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