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Flow control valve
Flow control valves Flow control valve

CHARACTERISTICS Oil viscosity υ = 30 mm /s 2-way flow control cartridge
2
Q = f (p) Volume flow pressure characteristics ∆p = f (Q) Pressure drop characteristics for return flow ◆ Q = 48 l/min M22 x 1,5
max
(from 2 → 1) ◆ Q = 40 l/min ISO 7789
N max
Q [l/min] p[bar] ◆ p = 350 bar
50 K0784 10 K0783 Q = 40 l/min max
N

40 Q = 40 l/min 8
N
N
30 Q = 25 l/min 6
Q = 16 l/min
N
20 Q = 10 l/min 4 Q = 1 l/min
N
N
Q = 6,3 l/min
N
10 Q = 4 l/min 2 DESCRIPTION APPLICATION
N
Q = 1; 1,6;
N
0 2,5 l/min 0 Pressure compensated 2-way flow control valve in screw-in Flow control valves are used for speed control, where the load cur-
0 50 100 150 200 250 300 350 p [bar] 0 10 20 30 40 50 Q [l/min] cartridge construction for cavity according to ISO 7789. From the rent has to be maintained constant independent of the input and out-
input (1), the fluid flows over the control and throttling spool to the put pressure. The screw-in cartridge is perfectly suitable for installa-
controlled output (2). The control spool keeps the pressure diffe- tion in control blocks and is installed in sandwich- (vertical stacked
DIMENSIONS / SECTIONAL DRAWINGS rence via the throttle point constant so that the same set volume systems) and in flange plates (corresponding data sheets in this re-
flow always exits at connection 2. The volume flow is changed via gister). For machining the cartridge cavity in steel and aluminum
Screw setting versions „S“

an adjustment spindle. blocks, cavity tools are available (hire or purchase). Please refer to
Cavity drawing according to

Ø 17 ISO 7789–22–01–0–98 the data sheets in register 2.13.
20
s4 M22x1,5
30
s13
SYMBOL ACTUATION
41 (2) Simplified Detailed Actuation Adjustment spindle M10 x 1
s27
2 2 Execution S = lockable key adjustment
ø 30 (1) D = lockable knob adjustment
79
40 Actuation angle a = 900 ° (2,5 rotations)
b
M22x1,5 (1) Actuation stroke S = 2,5 mm
1 b
38 For detailed cavity drawing
and cavity tools see data
60 sheet 2.13-1008. 1
50
TYPE CODE
PARTS LIST ACCESSORIES QZ PM22 - - #
Line mount body Data sheet 2.9-205 2-way flow control valve
Position Article Description
20 193.1050 Retainer for shaft RD5 DIN 6799 Type of adjustment Key S
30 153.1403 Hexagonal nut 0,5D M8 Control knob D
Cover
A
40 160.2188 O-ring ID 18,77x1,78 (see data sheet 2.0-50)
50 160.2156 O-ring ID 15,60x1,78 Screw-in cartridge M22 x 1,5
1
2
60 049.3196 Back-up ring RD 16,1x19x1,4
1 2 Technical explanation see data sheet 1.0-100 Nominal volume flow range Q 2,5 l/min 2,5 25 l/min 25
N 6,3 l/min 6,3 40 l/min 40
16 l/min 16
Sealing material NBR
FKM (Viton) D1
NBR 872 y-Z604

Design index (subject to change)
2.5-535

Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no.
Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.5-530E 2/2 www.wandfluh.com Illustrations are not binding Data subject to change 1/3 Edition: 20 28 2.5-535 E
CH-3714 Frutigen Edition 05 06
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