1
Functional Description
Pressure relief valves VPN2 are pilot operated pressure
valves designed for system pressure limitation.
The pressure adjustment is controled by the adjustment
screw (4). In its basic state, the valve is closed. The
pressure acts on the face area of the control spool (1) and at
the same time through orifice (2) on the control spool rear
side, which is preloaded by a spring and further on through
orifice (3) on the pilot valve ball (6).
When the increasing system pressure reaches the value,
which is preset by spring (5), the valve opens and the
control flow passes through the pilot valve. The spool area
which is preloaded by spring becomes relieved, the spool
control edge opens the radial bores in bushing (7) and the
fluid passes from port P to T. The control flow is routed
through slot (8) to port T.
When an accurate pressure control, which does not
depend on pressure variations in port T, is required, the
model "Y" with external port for pilot flow is to be used.
If a relieving of the valve on a lower pressure as that set up
by the spring (5) is needed, the model with port "X" (10) is to
be used.
The basic surface treatment of the valve body and the
adjustment screw are zinc coated.
q
Screw in cartridge design
q
Five pressure ranges
q
Two pressure adjustment options:
- screw with internal hexagon
- hand knob with arrestment
q
Installation dimensions to ISO 4401
and DIN 24 340-A10
X Y
HA 5163
7/2012
Replaces
HA 5163 7/2008
Size 10 · p
max
350 bar · Q
max
150 L/min
Pilot Operated Pressure
Relief Valves
VPN2-10/S
2
HA 5163
Ordering Code
VPN2-10/ -
Nominal size
Pilot Operated Pressure Relief Valve
Pressure range
6 up to 63 bar
10 up to 100 bar
16 up to 160 bar
21 up to 210 bar
32 up to 350 bar
Seals
without designation NBR
V FPM (Viton)
Adjustment element
S screw with internal hexagon
R hand knob
Model
screw in cartridge - internally piloted, internally drained
S
screw in cartridge - externally piloted, internally drained SX
screw in cartridge - internally piloted, externally drained SY
Technical Data
Nominal size mm 10
Max. flow rate L/min 150
Max. control flow L/min 0,5
Max. service pressure ports ( P, T, X, Y ) bar 350
Working pressure related to flow bar see p-Q Characteristics
Hydraulic fluid Hydraulic oils of power classes (HL, HLP) to DIN 51524
Fluid temperature range for
standard sealing (NBR)
°C -30 ... +100
Fluid temperature range for
Viton sealing (FPM)
°C -20 ... +120
Viscosity range mm
2
/s 20 ... 400
Max. degree of fluid contamination Class 21/18/15 according to ISO 4406
Weight kg 0.3
Mounting position unrestricted
Functional Symbols
Model X Model Y
3
HA 5163
p-Q Characteristics Measured at n= 32 mm
2
/s
Model S, SX
pressure range 32
pressure range 21
pressure range 16
pressure range 10
pressure range 6
Flow Q [L/min]
Pressure p [bar]
p-Q Characteristics Measured at n= 32 mm
2
/s
Model SY
pressure range 32
pressure range 21
pressure range 16
pressure range 10
pressure range 6
Dp-Q Characteristics Measured at n= 32 mm
2
/s
Model S, SX, SY
Flow Q [L/min]
Dp, p
Emin
[bar]
Flow Q [L/min]
Pressure p [bar]
SY
S, S
X
4
HA 5163
Valve Dimensions Dimensions millimetres
Model S
6 5 4 3 1 2
Cavity
1 Adjustment element (screw with
internal HEX 6 )
2 Adjustment element R (hand knob)
With all adjustment elements:
- clockwise rotation - pressure
increase
- anticlockwise rotation - pressure
decrease
3 Locknut HEX 27
4 Wrench flats s= 27
- tightening torque 60 Nm
5 O-ring 23.47 x 2.62 NBR 70 (1 pc.)
supplied with each valve
6 DUAL DU0100230-Z20
19,6 x 23 x 4,4 (1 pcs.)
supplied with each valve
Type designation
5
HA 5163
Valve Dimensions Dimensions millimetres
6 5 4 3 1 2
Model SX, SY
Cavity
1 Adjustment element (screw with
internal HEX 6)
2 Adjustment element R (hand knob)
With all adjustment elements:
- clockwise rotation - pressure
increase
- anticlockwise rotation - pressure
decrease
3 Locknut HEX 27
4 Wrench flats s=27
- tightening torque 60 Nm
5 Combined sealing:
O-ring 28.3 x 1.78 (1 pc.)
Back-up ring BBP80B024
29.03 x 31.73 x 1.14 (1 pc.)
supplied with each valve
6 Combined sealing:
DUAL DU0100230-Z20
19,6 x 23 x 4,4 (1 pcs.)
supplied with each valve
Type designation
6
HA 5163
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.
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.
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
Spare Parts
Model Dimensions, number Ordering number
S - NBR
O-ring 23.47 x 2.95 NBR 90 (1 pc.)
15991500
DUAL DU0100230-Z20 19,6 x 23 x 4,4 (1 pcs.)
S - Viton
O-ring 23.47 x 2.95 V 90 (1 pc.)
22943400
DUAL DU0100230-Z20 19,6 x 23 x 4,4 (1 pcs.)
Model Dimensions, number Ordering number
SX, SY - NBR
O-ring 28.3 x 1.78 NBR 90 (1 pc.)
22943500DUAL DU0100230-Z20 19,6 x 23 x 4,4 (1 pcs.)
Back-up ring BBP80B024 29.03 x 31.73 x 1.14 (1 pc.)
SX, SZ - Viton
O-ring 28.3 x 1.78 V 80 (1 pc.)
22943600DUAL DU0100230-Z20 19,6 x 23 x 4,4 (1 pcs.)
Back-up ring BBP80B024-V96 29.03 x 31.73 x 1.14 (1 pc.)
