Page 262 - Softbound_Edition_19_en

Spool valve
Spool valve Spool valve

SYMBOL PERFORMANCE SPECIFICATIONS
Overview valves Oil viscosity u = 30 mm /s
2
A B A B p = f (Q) Performance limits Q = f (Q) Leakage volume flow characteristics
L
a 0 b a b per control edge
a b a b
P T P T p [bar] Q [cm /min]
3
350 K4266 60 K4267
A B A B 300 50
250 40
a 0 b a b 200
a b a b 30
P T P T 150 20
100
50 10
A B A B 0 0
0 10 20 30 40 50 60 70 80 Q [l/min] 0 50 100 150 200 250 300 350 p [bar]
a 0 b a b
a b a b
P T P T
Δp = f (Q) Pressure drop volume flow characteristics
A B A B p [bar]
30 K4268
a 0 b a b
a b a b 25
P T P T 20
15
10
Overview spool types 5
A B A B 0 Q [l/min]
a b AB1 a b AB2 0 10 20 30 40 50 60 70 80
a b a b
P T P T

A B A B
A B
a o b ACB1 / a b AC1 a b CB2 DIMENSIONS PARTS LIST
a b ACB2 a b a b Position Article Description
P T P T P T
8.9° 8.9° 10 253.2000 Hand control head BHII

A B A B 30 246.1121 Socket head screw M4 x 20 DIN 912
A B
o ADB1 / b AD1 a DB2 40 249.1007 Socket head screw M4 x 63
a b a b 21.5N
a b ADB2 a b a b 50 238.0202 Socket head screw M8 x 1 DIN 908
P T P T P T
80 160.2093 O-ring ID 9,25 x 1,78 (NBR)
160.6092 O-ring ID 9,25 x 1,78 (FKM)
A B A B
A B
BEA1 / BE1 EA2
a o b a b a b
a b BEA2 a b a b 9.5
P T P T P T 156 5.2
50
8 MD= 5.2Nm
A B A B
A B
o AFB1 / b AF1 a FB2
a b AFB2 a b
a b a b a b
P T P T P T 35 45 49
41

A B A B
A B
o AGB1 / b AG1 a GB2
a b AGB2 a b 46 40 10 20.8 80 30
a b a b a b MD= 2.6Nm MD= 2.6Nm
P T P T P T 40.8
55.8 68 20.8
148.6

www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 21 43 1.5-41 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 21 43 1.5-41 E
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