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Proportional pressure relief valve
Proportional pressure relief valve Proportional pressure relief valve
CERTIFICATES SYMBOL PERFORMANCE SPECIFICATIONS EXECUTION L9 (MEASURED AT 40 °C)
2
Surface Mining Standard M248 Oil viscosity u = 30 mm /s
-25 °C Electronic (T) 2 p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics
red
red
to… Maximal adjustable pressure Minimal adjustable pressure
ATEX x x x x p [bar] p [bar]
IECEx x x x x 400 K1003 40 K1004 P N = 250 bar
(P) 1 P N = 160 bar
CCC x x x x 300 P N = 280 bar P N = 250 bar 30 P N = 80 bar
EAC x x x x P N = 20 bar
200 P N = 160 bar 20
Australia x x x
MA x x x 100 P N = 80 bar 10 P N = 280 bar
P N = 20 bar
UL / CSA x x 0 0
0 5 10 15 20 25 Q [l/min] 0 5 10 15 20 25 Q [l/min]
The certificates can be found on www.wandfluh.com
GENERAL SPECIFICATIONS ACTUATION p = f (n) Pressure adjustment characteristics Δp = f (Q) Leakage volume flow characteristics
red
Measured at Q = 1 l/min
3
Designation Proportional pressure relief valve Actuation Proportional solenoid, wet pin push Q [cm /min]
Construction Direct operated type, pressure tight p [%] 40 K0791
K1005
Mounting Screw-in cartridge construction Execution MKY45 / 18x60 (data sheet 1.1-183) 100 30
Nominal size M22 x 1,5 according to ISO 7789 MKU45 / 18x60 (data sheet 1.1-184) 80 20
Actuation Proportional solenoid Connection Cable gland for cable Ø 6,5…14 mm 60
Ambient temperature Operation as T6 Attention! The UL execution is always supplied without cable 40 10
-25…+40 °C (L9) gland 20 0
Operation as T4 0 0 50 100 150 200 250 300 350 p [bar]
-25…+90 °C (L9) 0 20 40 60 80 100 l [%]
-25…+70 °C (L15 / L17)
Weight 2,2 kg
MTTFd 150 years HYDRAULIC SPECIFICATIONS PERFORMANCE SPECIFICATIONS EXECUTION L15 / L17 (MEASURED AT 50 °C)
Oil viscosity u = 30 mm /s
2
Working pressure p = 400 bar
max p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics
Nominal pressure Execution L9 red Maximal adjustable pressure red Minimal adjustable pressure
range P = 20 bar, 80 bar, 160 bar, 250 bar, 280
N
bar p [bar] p [bar] P N = 315 bar P N = 200 bar
ELECTRICAL SPECIFICATIONS Execution L15 / 17 400 K0999 P N = 350 bar 40 K1001
P = 20 bar, 100 bar, 200 bar, 275 bar, 315 300 P N =315 bar 30 P N = 100 bar
N
Protection class IP65 / 66 / 67 bar, 350 bar
Relative duty factor 100 % DF Maximum volume flow See characteristics 200 P N = 200 bar 20 P N = 20 bar
Voltage tolerance ± 10 % with regard to nominal voltage Minimum volume flow Q = 0,1 l/min 100 P N = 100 bar 10 P N = 350 bar
min
Standard nominal 12 VDC, 24 VDC Leakage oil See characteristics P N = 20 bar
voltage Hysteresis ≤ 5 % at optimal dither signal 0 0 5 10 15 20 25 Q [l/min] 0 0 5 10 15 20 25 Q [l/min]
Limiting current at… °C L9, 40 °C Repeatability ≤ 2 % at optimal dither signal
I = 625 mA (12 VDC)
G
I = 305 mA (24 VDC) Fluid Mineral oil, other fluid on request p = f (n) Pressure adjustment characteristics Δp = f (Q) Leakage volume flow characteristics
red
G
2
2
L15 / 17, 50 °C Viscosity range 12 mm /s…320 mm /s Measured at Q = 1 l/min Q [cm /min]
3
I = 950 mA (12 VDC) Temperature range Operation as T6 p [%] 40 K0791
G
I = 450 mA (24 VDC) fluid NBR -25…+40 °C (L9) 100 K1002
G
L15 / 17, 70 °C FKM -20…+40 °C (L9) 80 30
I = 910 mA (12 VDC) Operation as T4 20
G
I = 420 mA (24 VDC) NBR -25…+70 °C (L9 or L15 / L17) 60
G 10
Standard nominal 9 W, 15 W, 17 W FKM -20…+70 °C (L15 / L17) 40
power FKM -20…+70 °C (L9) 20 0
Temperature class Nominal power 9 W: T1…T6 Contamination Class 18 / 16 / 13 0 100 l [%] 0 50 100 150 200 250 300 350 p [bar]
Nominal power 15 W / 17 W: T1…T4 efficiency 0 20 40 60 80
Filtration Required filtration grade ß 6…10 ≥ 75,
Note! Other electrical specifications see data sheet 1.1-183 see data sheet 1.0-50
and 1.1-184
www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 21 21 2.3-547 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 21 21 2.3-547 E
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