1
q
Modular and in-line 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
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 B 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 (only for models
RC2 and RC3, see Functional Symbols), 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" is to
be used.
The valve body and the adjustment screw are zinc
coated. With models M and R the valve bodies are
phosphate coated.
HA 5164
6/2012
Replaces
HA 5164 7/2008
Size 10 · p
max
350 bar · Q
max
150 L/min
Pilot Operated Pressure
Relief Valves
VPN2-10/MR
2
HA 5164
Ordering Code
VPN2-10/ -
Nominal size
Pilot Operated Pressure Relief Valve
Model
modular valve, flow from A to TA
MA
modular valve, flow from B to TB MB
modular valve, flow from P to TA MP
modular valve, flow from A to B and B to A MC
modular valve, flow from A to TA and B to TB MD
in-line valve, thread P1, P2 - G3/4; T - G1 RA2
in-line valve, thread P - G3/4; T - G1 RB2
in-line valve, thread P - G3/4; T - G1; X - G1/4 RC2
in-line valve, thread P - G3/4; T - G1; Y - G1/4 RC3
Pressure range
6 up to 63 bar (913 PSI)
10 up to 1450 100 bar (1450 PSI)
16 up to 160 bar (2321 PSI)
21 up to 210 bar (3045 PSI)
32 up to 350 bar (5076 PSI)
Model with two pressure relief cartridges
32/10 pressure setting 350 bar (5076 PSI)
in port A and 100 bar (1450 PSI) in port B, etc.
Seals
without designation NBR
V FPM (Viton)
Adjustment element
S screw with internal hexagon
R hand knob
Functional Symbols
Model RA2 Model RB2 Model RC2 Model RC3
Valve side
Subplate side
Model MA Model MB Model MP Model MC Model MD
Ordering Numbers of Sandwich / Valve Bodies (without screw-in cartridge)
Valve body for modular valve - NBR Ordering number Valve body for modular valve - Viton Ordering number
MA10-VP 15995800 MA10-VP/V 22975100
MB10-VP 15995900 MB10-VP/V 22975200
MP10-VP 15996000 MP10-VP/V 22975300
MC10-VP 15996100 MC10-VP/V 22975400
MD10-VP 15996200 MD10-VP/V 22975500
Valve body for in-line valve - NBR Ordering number Valve body for in-line valve - Viton Ordering number
RA2-10-VP 15996500 RA2-10-VP/V 22976600
RB2-10-VP 15996300 RB2-10-VP/V 22976300
RC2-10-VP (RC3-10-VP) 15996400 RC2-10-VP/V (RC3-10-VP/V) 22976400
3
HA 5164
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, A, B ) 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 - models MA, MB, MP
- models MC, MD
- models RA2, RB2, RC2, RC3
kg
2,6
3.0
2.7
Mounting position unrestricted
Dp-Q Characteristics Measured at n= 32 mm
2
/s
Dp, p
Emin
[bar]
MC
MP
MA, MB
Pressure setting p [bar]
Flow Q [L/min]
pressure range 32
pressure range 21
pressure range 16
pressure range 10
pressure range 6
p-Q Characteristics Measured at n= 32 mm
2
/s
Flow Q [L/min]
4
HA 5164
3 5 4 6
2
1
5 1 4 3 2
6
Model MB
1 Name plate
2 Adjustment element (screw with
internal HEX 6 )
3 Locknut HEX 27
4 Wrench flats s = 27
- tightening torque 60Nm
5 4 through mounting holes
6 Square rings 12.42 x 1.68 (5 pcs.)
supplied with each valve
Required surface finish of
interface
Valve Dimensions Dimensions in millimetres
Model MA
5
HA 5164
1
2
3 6 4 5
Models MC, MD
1 Name plate
2 Adjustment element (screw with
internal HEX 6 )
3 Locknut HEX 27
4 Wrench flats s=27
- tightening torque 60Nm
5 4 through mounting holes
6 Square rings 12,42 x 1,68 (5 pcs.)
supplied with each valve
Valve Dimensions Dimensions in millimetres
Model MP
Required surface finish of
interface
6
HA 5164
2 3 4 5 6 1
2 3 4 5 6 1
Valve Dimensions Dimensions in millimetres
Model RA2
1 Name plate
2 Adjustment element (screw with
internal HEX 6 )
3 Locknut HEX 27
4 Wrench flats s=27
- tightening torque 60Nm
5 2 through mounting holes
6 2 x M6 for attachment
under panel
Model RB2
7
HA 5164
Valve Dimensions Dimensions in millimetres
Model RC2, RC3
2 3 4 6 1
5
Spare Parts
Model Dimensions, number Ordering number
Modular valve - NBR Square ring 12.42 x 1.68 NBR 70 (5 pcs.) 15991600
Modular valve - Viton O-ring 12.42 x 1.78 (5 pcs.) 22943800
Model Typ, number Ordering number
In-line valve RA2 - NBR
VSTI R1/4-ED (1 pc.)
VSTI R3/4-ED (1 pc.)
22972200
In-line valve RB2,
RC2, RC3 - NBR
VSTI R1/4-ED (1 pc.) 22972400
In-line valve RA2 - Viton
VSTI R1/4-ED - Viton (1 pc.)
VSTI R3/4-ED - Viton (1 pc.)
22972300
In-line valve RB2,
RC2, RC3 - Viton
VSTI R1/4-ED - Viton (1 pc.) 22972500
1 Name plate
2 Adjustment element (screw with
internal HEX 6 )
3 Locknut HEX 27
4 Wrench flats s= 27
- tightening torque 60Nm
5 2 through mounting holes
6 2 x M6 for attachment
under panel
8
HA 5164
Caution!
The packing foil is recyclable.
The protecting plate can be returned to the manufacturer.
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
