1
HA 5227
7/2008
M27 x 2 • p
max
350 bar • Q 60 L/min
3 Way
Flow Control Valves
SF32A-K3/l
q
Priority style
q
Constant flow largely independent to load
and viscosity
q
Port 2 can be pressurized
q
Various flow ranges available
1
2
3
1
2
3
Functional Description
Replaces
HA 5227 9/2006
The valve consists of an adjustable measuring orifice
plate after which it is installed a stabilizer of pressure
drop. During the flow from (1) to (3) the liquid flows
through the centre of the stabilizer slide valve and then
through radial orifices to the side channel (3).
The stabilizer has been designed to serve for
maintaining a pressure difference arisen on
the measuring orifice plate at a constant level
of approximately of 12 bar given by the spring force so as
to ensure a constant rate of flow through the channel (3).
The excessive flow of the liquid cause a dynamic
pressure in channel (1) by means of which the slide valve
of the stabilizer is shifted against the spring and opens
the flow cross section to the channel (2) through which
the excessive liquid flows out either to the drain or to
another consumer. The channel (2) can be loaded by
pressure. Due to permanent equalizing the forces
the position of the stabilizer gate valve changes with
each change of pressure before and after the measuring
orifice plate and in this way it results in appropriate
decreasing or eventually appropriate increasing the flow
cross section of channels.
The liquid can flow through the valve also in opposite
direction from (3) to (1), however, in a limited extent
taking into consideration the fact that the liquid shall flow
through the throttling cross section.
As for appropriate basic surface finish the external parts
are zinc coated.
2
HA 5227
5000 4000 3000 2000 1000 0 1000 2000 3000 4000 5000
15
25
35
45
55
65
0
Bypass higher than
regulated pressure
Regulated higher than
bypass pressure
350 280 210 140 70 0 70 140 210 280 350
2.5
5.0
7.5
10.0
12.5
15.0
0
Pressure p [bar]
Pressure p [PSI]
Regulated Flow Q [L/min]
Regulated Flow Q - US GPM][
Ordering Code
SF32A-K3/l
3 Way Flow Control Valve
Technical Data
Cavity M27 x 2
Adjustment range L/min 4 - 60
Max. pressure bar 350
Hydraulic fluid Hydraulic oil (HM, HV) according to DIN 51524
Fluid temperature range °C -20 ... +90
Viscosity mm
2
/s 20 ... 400
Maximum degree of fluid contamination According to ISO 4406, Class 21/18/15
Weight kg 0.16
Maximum valve tightening torque
in valve body or in control block
Nm 75
+2
Mounting position Unrestricted
p-Q Characteristics Measured at n = 40 mm
2
/s
Adjustable flow range
4 - 40 L/min
4
6 - 60 L/min 6
Seals
no designation NBR
3
HA 5227
6HR4
6HR17
6HR32
M27x 2-6g
3
2
1
Cavity Measurements in millimeters
Dimensions Measurements in millimeters
HEX 4.0
HEX 17.0
HEX 32.0
M27 x 2.0 - 6g
73.50
72.50
71.00 MIN
53.00
60.40
60.00
30°
13.00 MAX
19.00 MIN
35.90
35.50
30°
3.50
3.10
15°
13.00 MAX
28.50
45°
0.3
1.6
R 0.2
0.1
1.6
0.08
B
1.6
20.00
0.05
A
21.05
21.00
0.08 B
0.08 A
-A-
40.00
29.50
29.40
M27x2.0-6H
23.05
23.00
1.6
B
4
HA 5227
ISO A
2x OTVOR 11,0
Caution!
The packing foil is recyclable.
The technical information regarding the product presented in this catalogue is for descriptive purposes only. It should
not be construed in any case as a guaranteed representation of the product properties in the sense of the law.
Valve Bodies Measurements in millimeters
Seal kits on request.
Spare Parts
The use of aluminium bodies is limited to a maximum operating pressure of 210 bar.
2x HOLES Æ11.0THRO¢
Body without valve
Material Ports Port size Type code
Aluminium
1, 2, 3 G1/2 SB-K3-0105AL
1, 2, 3 SAE 10, 7/8-14 SB-K3-0106AL
Steel
1, 2, 3 G1/2 SB-K3-0105ST
1, 2, 3 SAE 10, 7/8-14 SB-K3-0106ST
Subject to alteration without notice!
ARGO-HYTOS s.r.o. CZ - 543 15 Vrchlabí
Tel.: +420-499-403111, Fax: +420-499-403421
E-mail: sales.cz@argo-hytos.com
www.argo-hytos.com
