Page 328 - Softbound_Edition_19_en

Spool valve
Spool valve Spool valve

PERFORMANCE SPECIFICATIONS DIMENSIONS
Oil viscosity u = 30 mm /s 4/3-way spool valve (spring centring)
2
4/2-way spool valve (impulse)
Q = f (p) Performance limits Q = f (p) Leakage volume flow characteristic
Minimum pilot pressures measured with back per control edge 194
pressure free pilot oil drain Q [cm /min] 57.2 40
3
P [bar] AB3 8 bar 200 K4123 A 20 B
350 K4122 ACB 14 bar
300 ADB 10 bar 150
AGB 14 bar
250 AB1 12 bar 100
200 AB2 12 bar
150 ACB 12 bar 50
100 AFB 8 bar
AGB 12 bar
50 AEB 10 bar 0 70
0 0 50 100 150 200 250 300 350 p [bar] Y=G1/8" X=G1/8" 165.6 20
0 20 40 60 80 100 120 140 160 Q [l/min] 90* MD= 5Nm 137
60

∆p = f (Q) Pressure drop volume flow characteristics Volume flow direction 35
Spool type / flow direction Symbol P - A P - B P - T A - T B - T 70
∆p [bar] AB. 3 3 - 2 1 29
20 K4124 1 ACB 3 3 - 2 1
15 2 ADB 3 3 - 2 1 10 40 30 6.5
3 10.5 68
10 4 AEB 3 3 1 2 1
AFB 2 2 4 4 2 20 93
5 133.4
AGB 2 2 - 2 1 Pos. 90 * Control plate with type of pilot operation te, pi, pe only
0
0 20 40 60 80 100 120 140 160 Q [l/min] 4/2-way spool valve (spring reset)
133.5
∆p = f (Q) Pressure drop volume flow characteristic A
Back pressure cartridge (in addition to P-A or P-B
of the main valve)
Δ p [bar]
16 K4132
12
145.6
8
4
0
0 20 40 60 80 100 120 140 160 Q [l/min]

Note! *Please ensure the minimum pilot pressure. Attention internal pilot connections: valves only switch when the pressure difference
in the valve is high enough. Further details on request. 163.5

www.wandfluh.com Illustrations are not binding Data subject to change 4/6 Edition: 20 16 1.9-32 E www.wandfluh.com Illustrations are not binding Data subject to change 5/6 Edition: 20 16 1.9-32 E
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