Page 954 - Softbound_Edition_19_en
P. 954
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 (n) Pressure volume flow characteristics
red
red
to… Maximal adjustable pressure Minimum adjustable pressure
ATEX x x x x p [bar] p [bar]
IECEx x x x x 400 K0227 40 K0228
(P) 1
CCC x x x x 300 P N = 280 bar P N = 220 bar 30 P N = 160/220/
280 bar
EAC x x x x P N = 20/50/
200 P N = 160 bar 20 80 bar
Australia x x x P N = 80 bar
MA x x x 100 P N = 50 bar 10
UL / CSA x x 0 P N = 20 bar 0
0 25 50 75 100 Q [l/min] 0 25 50 75 100 Q [l/min]
The certificates can be found on www.wandfluh.com
GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS 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 Working pressure p = 400 bar Q [cm /min]
max 250 K0223
Construction Pilot operated Nominal pressure Execution L9 p [%]
K0226_1
Mounting Screw-in cartridge construction range P = 20 bar, 50 bar, 80 bar, 160 bar, 220 100 200
N
Nominal size M22 x 1,5 according to ISO 7789 bar, 280 bar 80 150
Actuation Proportional solenoid Execution L15 / 17 60 100
Ambient temperature Operation as T6 P = 20 bar, 63 bar, 100 bar, 200 bar, 275 40 50
N
-25…+40 °C (L9) bar, 350 bar 20 0
Operation as T4 Volume flow range Q = 0,3...100 l/min 0 0 50 100 150 200 250 300 350 p [bar]
-25…+90 °C (L9) Leakage oil See characteristics 0 20 40 60 80 100 I [%]
-25…+70 °C (L15 / L17) Hysteresis ≤ 5 % at optimal dither signal
Weight 1,9 kg Repeatability ≤ 2 % at optimal dither signal
MTTFd 150 years Fluid Mineral oil, other fluid on request PERFORMANCE SPECIFICATIONS EXECUTION L15 / L17 (MEASURED AT 50 °C)
Viscosity range 12 mm /s…320 mm /s Oil viscosity u = 30 mm /s
2
2
2
Temperature range Operation as T6 p = f (Q) Pressure volume flow characteristics p = f (n) Pressure volume flow characteristics
fluid NBR -25…+40 °C (L9) red Maximal adjustable pressure red Minimal adjustable pressure
FKM -20…+40 °C (L9)
ELECTRICAL SPECIFICATIONS Operation as T4 400 p [bar] P N = 350 bar 40 p [bar]
K0224
K0225
NBR -25…+70 °C (L9 or L15 / L17)
Protection class IP65 / 66 / 67 FKM -20…+70 °C (L15 / L17) 300 P N = 275 bar 30 P N = 200/275/
350 bar
Relative duty factor 100 % DF FKM -20…+70 °C (L9) P N = 200 bar P N = 20/63/
Voltage tolerance ± 10 % with regard to nominal voltage Contamination Class 18 / 16 / 13 200 P N = 100 bar 20 100 bar
Standard nominal 12 VDC, 24 VDC efficiency 100 P N = 63 bar 10
voltage Filtration Required filtration grade ß 6…10 ≥ 75, 0 P N = 20 bar 0
Limiting current at… °C L9, 40 °C see data sheet 1.0-50 0 25 50 75 100 Q [l/min] 0 25 50 75 100 Q [l/min]
I = 625 mA (12 VDC)
G
I = 305 mA (24 VDC)
G p = f (n) Pressure adjustment characteristics Δp = f (Q) Leakage volume flow characteristics
L15 / 17, 50 °C red
3
I = 950 mA (12 VDC) Measured at Q = 1 l/min Q [cm /min]
G
I = 450 mA (24 VDC) ACTUATION p [%] 250 K0223
G
L15 / 17, 70 °C Actuation Proportional solenoid, wet pin push 100 K0226 200
I = 910 mA (12 VDC) type, pressure tight 80
G 150
I = 420 mA (24 VDC)
G Execution MKY45 / 18x60 (data sheet 1.1-183) 60 100
Standard nominal 9 W, 15 W, 17 W MKU45 / 18x60 (data sheet 1.1-184) 40
power Connection Cable gland for cable Ø 6,5…14 mm 50
Temperature class Nominal power 9 W: T1…T6 20 0 0 50 100 150 200 250 300 350 p [bar]
Nominal power 15 W / 17 W: T1…T4 Attention! The UL execution is always supplied without cable 0 0 20 40 60 80 100 I [%]
gland
Note! Other electrical specifications see data sheet 1.1-183
and 1.1-184
www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 21 21 2.3-536 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 21 21 2.3-536 E
Page 954
