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2
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Model S
Model R
2 way Flow Control Valve
Pressure Compensated
SF22A-B2
HA 5067
03/2013
Pressure compensated flow control valves are installed
in hydraulic systems where only small adjustment due to
load induced changes flow are required.
The valve consists basically of throttling orifice (1),
pressure compensator (2), bushing (3), adjustment screw
(4) and spring (5).
Throttling in direction 1 → 2 is realised on the throttling
orifice. The flow rate depends on the orifice diameter
and on the pressure difference at the orifice. The
pressure difference can be adjusted in a certain range
through preloading the spring (5), which results in the
respective flow change. The allocation of the orifice
diameters and the corresponding flow rates is apparent
from the characteristics. The flow rate adjustment can be
accomplished by adjustment screw (4). The clockwise
rotation increases the flow rate, the anticlockwise rotation
decreases the flow rate.
The flow rate stabilization is provided by pressure
compensator (2), which is situated behind the throttling
orifice and mounted into bushing (3). The pressure
compensator continuously compares the pressure
difference at the throttling orifice (1) with the value given
by the spring preload.
The valve cannot be fully closed for flow 0 L/min. In flow
direction 2 → 1, the valve works as an ordinary throttle
valve withouth pressure compensation feature. The
pressure losses depend on the orifice diameter – see the
respective characteristics.
The valve housing (7), the nut (6) and the adjustment
screw (4) are zinc coated.
Functional Description
Hardened and precision working parts
Flow rate setting with adjustment
screw or with hand wheel
Quiet and stabile flow setting
over complete pressure range
Fine low-torque adjustment
7/8-14 UNF • p
max
350 bar (5076 PSI) • Q
max
40 L/min (10.57GPM)
2
HA 5067
Ordering Code
Technical Data
Valve size B2
Cartridge thread 7/8-14 UNF-2A
Nominal Flow rate 12 20 40
Flow range see Q-∆p characteristic
Maximum working pressure bar (PSI) 350 (5076)
Hydraulic fluid Hydraulic oils of power classes (HL, HLP) to DIN 51524
Fluid temperature range (NBR) °C (°F) -30... + 100 (-22 ... +212)
Fluid temperature range (Viton) °C (°F) -20 ... +120 (-4 ... +248)
Viscosity range mm
2
/s (SUS) 10 ... 500 (49 ... 2450)
Maximum degree of fluid contamination Class 21/18/15 to ISO 4406
Weight kg (lbs) 0,220 (0.485)
Mounting position unrestricted
Valve body (data sheet HA0018)
SB-B2
∆p-Q Characteristics Measured at ν = 32 mm
2
/s (156 SUS)
Flow directional 2→1 (Throttling without compensator)
Flow rate 12, 20, 40
3
6
9
12
15
18
21
0 5 10 15 20 25 30 35 40
10
20
30
40
50
60
12
20
40
0 4 8 12 16 20
0 1.06 2.11 3.17 4.23 5.28
43
87
130
174
217
261
304
Flow Q ()[]L/min GPM
Pressure p bar(PSI) [ ]
0 1.32 2.64 3.96 5.28 6.60 7.93 9.25 10.57
10
20
30
40
50
60
Flow Q ()[]L/min GPM
Pressure p bar(PSI) [ ]
SF22A-B2 /
2 way Flow Control Valve
pressure compensated
7/8-14 UNF
Seals
no designation NBR
V FPM (Viton)
High performance H
Adjustment option
S Inside hexagon 5 mm
R Adjustable handknob
Flow rate
12 Flow 3,2-12 L/min (0.85-3.17 GPM)
20 Flow 5,1-20 L/min (1.35-5.28 GPM)
40 Flow 5,0-41 L/min (1.32-10.83 GPM)
3
HA 5067
∆p-Q Characteristics Measured at ν = 32 mm
2
/s (156 SUS)
Flow directional 1 → 2 (Controlled flow)
Flow rate 40
Flow rate 20
Flow rate 12
Flow Q [L/min (GPM )]
Pressure difference ∆p [bar (PSI)]
Pressure difference ∆p [bar (PSI)]
Pressure difference ∆p [bar (PSI)]
Flow Q [L/min (GPM )]Flow Q [L/min (GPM )]
4
ARGO-HYTOS s.r.o. CZ - 543 15 Vrchlabí
tel.: +420-499-403 111
e-mail: info.cz@argo-hytos.com
www.argo-hytos.com
HA 5067
Valve Dimensions Dimensions in millimeters (inches)
Cavity Dimensions in millimeters (inches)
Spare Parts
Caution!
Type Dimensions, quantity Ordering number
O-ring Dualseal - PU
NBR
13,47 x 15,87 x 3,1 (1pc) 20159100
19,4 x 2,1 (1pc) 20143900
FPM (Viton)
13,47 x 15,87 x 3,1 (1pc) 20159100
19,4 x 2,1 (1pc) 20144100
• The plastic packaging is recyclable. .
• Certified documentation is available per request.
Subject to alteration without notice !
1342
5
40 (1.57)
max. 31 ( )1.22
7/8-14UNF-2A
1 , 25 8
0.6 )2
(
26,5 (1.04)
5 (0 ).2
11,5 (0 45).
31 (1 22).
max. 91,5 (3 6).
HEX 5
HEX 17
HEX 24
1 Type designation (stamped)
2 Screw for fine flow adjustment
- inside hexagon 5 mm
- anticlockwise rotation = flow decrease
- clockwise rotation = flow increase
3 Spanner size 24 mm
tightening torque 60+5 Nm (44.3+3.7 lbf.ft )
4 Sealing: O-ring 19,4x2,1 (supplied with valve)
5 Sealing: Dualseal 13,47 x 15,87 x 3,1
(supplied with valve)
Model S Model R
