Page 960 - Softbound_Edition_19_en

Proportional pressure relief valve
Proportional pressure relief valve Proportional pressure relief valve

PERFORMANCE SPECIFICATIONS DIMENSIONS
Oil viscosity u = 30 mm /s With analog interface, 12 pole connector With analog interface, 7 pole connector
2
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics Amplifier and controller Amplifier and controller
red
red
Maximal adjustable pressure Minimal adjustable pressure 25,30 20,21 40 X2
p [bar] p [bar] X2
400 K0220 40 K0221
P N = 350 bar X1 X1
P N = 275 bar P N = 160/200/
300 30 275/350 bar
P N = 200 bar s30
200 P N = 160 bar 20 P N = 20/63/ X4 118.4 X4
P N = 100 bar 100 bar 100.4
100 P N = 63 bar 10 M22x1.5 (2)
15
0 P N = 20 bar 0 35 MD=5.5Nm (1) 35
0 25 50 75 100 Q [l/min] 0 25 50 75 100 Q [l/min]

12 17 18 50 70 60
MD=5Nm
78.4
95
p = f (n) Pressure adjustment characteristics p = f (n) Pressure adjustment characteristics 135 38.5
red
red
Measured at Q = 10 l/min Measured at Q = 10 l/min 174
s entspricht Sollwertsignal s entspricht Sollwertsignal X4 (controller only)
p [bar] p [bar] With fieldbus interface With fieldbus interface
120 K4100_1 400 K4100 Amplifier Controller
P N red = 350 bar
P N red = 100 bar
90 300 X2
P N red = 275 bar
60 P N red = 63 bar 200 P N red = 200 bar X2 X1
30 P N red = 20 bar 100 X1 X3
0  0 
0 10 20 30 40 50 60 70 80 90 100 s [%] 0 10 20 30 40 50 60 70 80 90 100 s [%] 100.4 X3 118.4 X4

35 35
Q = f (p) Leakage volume flow characteristic FACTORY SETTINGS
L
Dither set for optimum hysteresis
● = Deadband: solenoid switched off at command value signal < 5 %
Q [cm /min]
3
250 K0223 ■ = Limited pressure in port P (1) at 70 % command value signal
248 bar at nominal pressure range p 350 bar
200 N HYDRAULIC CONNECTION PARTS LIST
192 bar at nominal pressure range p 275 bar
150 N Cavity drawing according to ISO 7789–22–02–0–98 Position Article Description
100 144 bar at nominal pressure range p N 200 bar 12 154.2700 Knurled nut
50 114 bar at nominal pressure range p N 160 bar M22x1.5 15 253.8000 Manual override HB4,5
0 72 bar at nominal pressure range p N 100 bar
0 50 100 150 200 250 300 350 p [bar] 46 bar at nominal pressure range p 63 bar 17 160.2187 O-ring ID 18,72 x 2,62 (NBR)
N
16 bar at nominal pressure range p 20 bar (2) 18 160.2170 O-ring ID 17,17 x 1,78 (NBR)
N
20 223.1317 Dummy plug M16 x 1,5
21 160.6131 O-ring ID 13,00 x 1,5 (FKM)
(1)
25 062.0102 Cover
(1) 30 072.0021 Gasket 33,2 x 59,9 x 2
40 208.0100 Socket head screw M4 x 10
Note! For detailed cavity drawing and cavity tools see data 50 160.2188 O-ring ID 18,77 x 1,78 (NBR)
sheet 2.13-1003 160.6188 O-ring ID 18,77 x 1,78 (FKM)
60 160.2140 O-ring ID 14,00 x 1,78 (NBR)
160.6141 O-ring ID 14,00 x 1,78 (FKM)
70 049.3177 Back-up ring rd 14,6 x 17,5 x 1,4

www.wandfluh.com Illustrations are not binding Data subject to change 4/6 Edition: 20 40 2.3-537 E www.wandfluh.com Illustrations are not binding Data subject to change 5/6 Edition: 20 40 2.3-537 E
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