Page 310 - Softbound_Edition_19_en

Spool valve
Spool valve Spool valve

TYPE CODE PERFORMANCE SPECIFICATIONS
2
WF A F A06 - - - # Oil viscosity u = 30 mm /s
Spool valve, direct operated p = f (Q) Performance limits Q = f (Q) Leakage volume flow characteristics
Measured with nominal voltage -10 % L per control edge
Hydraulically actuated via control head
p [bar] Q [cm /min]
3
Flange construction 350 K4285 150 K0232_3
300 AB1/AB3/ACB/
International standard interface ISO, NG6 250 AFB/AGB 120
200 90
Designation of symbols acc. to table 150 60
100
Sealing material NBR 50 BEA 30
FKM (Viton) D1 0 0
NBR 872 y-Z604 0 10 20 30 40 50 60 70 80 Q [l/min] 0 50 100 150 200 250 300 350 p [bar]
AB3/AB1/ACB/ADB/AFB/AGB
Surface protection Standard BEA
Zinc-nickel K8
Design index (subject to change) Δp = f (Q) Pressure drop-volume flow characteristics Volume flow direction
1.7-33
∆p [bar] Symbol P - A P - B P - T A - T B - T
30 K0171 5 AB1 / AB2 / AB3 2 2 - 1 1
GENERAL SPECIFICATIONS ACTUATION 25 1 2 ACB / AC1 / CB2 2 2 - 1 1
20
Designation 4/2-, 4/3-spool valve Actuation Hydraulically operated 15 3 ADB / AD1 / DB2 2 2 - 3 3
Construction Direct operated Execution Actuation 10 4 BEA / BE1 / EA2 2 2 5 2 2
Mounting Flange construction Pilot pressure p V min = 50 bar > p T 5 AFB / AF1 / FB2 4 4 - 3 3
Nominal size NG6 according to ISO 4401-03 p V max = 160 bar (with HB or HN) 0 0 10 20 30 40 50 60 70 80 Q [l/min] AGB / AG1 / GB2 4 4 - 1 1
Actuation Hydraulically operated p V max = 280 bar (with HB0)
Ambient temperature -25…+70 °C Control volume V = 0,06 cm 3
Weight 1,25 kg (1 actuation)
1,5 kg (2 actuations)
MTTFd 150 years DIMENSIONS HYDRAULIC CONNECTION
4/3-way valve (spring centring)
4/2-way valve (impulse) 17.8
T
HYDRAULIC SPECIFICATIONS SURFACE TREATMENT 31 A B 21 32.5

Working pressure p = 350 bar Standard:
max P
Tank pressure p = 200 bar -The valve body is painted with a two component paint
T max -The hydraulic actuation and the screw plug are zinc-nickel coated 21.5
Maximum volume flow Q = 80 l/min, see characteristics 40.5
max
139.2
Optionally (K8):
Leakage oil See characteristics -All external parts are zinc-nickel coated
Fluid Mineral oil, other fluid on request ISO 9227 (800 h) salt spray test 4/2-way valve (spring reset)
Viscosity range 12 mm /s…320 mm /s 19 9.5
2
2
Temperature range -25…+70 °C (NBR) s13 G1/8" 5.2 MD= 5.2Nm
15
fluid -20…+70 °C (FKM) MD=5.5Nm
Contamination Class 20 / 18 / 14 8
efficiency
Filtration Required filtration grade ß 10…16 ≥ 75, 37 41 49 B2 B1
see data sheet 1.0-50

MANUAL OVERRIDE SEALING MATERIAL B4
HB4,5 as standard NBR or FKM (Viton) as standard, choice in the type code 60 3 70 32.6 60 50 68 12.6 60 s36
Optionally: HN (K), HB0 (plugged) 116.2 46
→ see data sheet 1.1-311

www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 22 37 1.7-33 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 22 37 1.7-33 E
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