1
The pressure valves VRN2 are pilot operated screw-in
cartridge pressure reducing valves designed as 3 way
valves, i.e. with pressure protection of the secondary
circuit. For the use in vertical stacking assemblies, two
models of valve bodies are available, with pressure
reduction in ports A and P. Incorporated into the valve
bodies MA are the check valves which enable the
reverse flow to pass through the valve.
The reducing valve consists of a cartridge (1) with thread
M22x1.5, control spool (2), spring (3) and the
adjustment element (4). With the models for stacking
assemblies also the respective valve body (5) and
alternatively a check valve (6) complete the valve.
Screw-in cartridge valve
The flow from the primary circuit flows to the first
metering edge, where its pressure is reduced. The
reduced pressure corresponds with the adjustment of
the control spring of the ball pilot valve. The reduced
pressure is continuously controlled and compared with
the pressure preset. If any control error appears, the
respective control action takes place and the reduced
pressure returns to its preset value. After the pressure
reduction, the fluid flows through the spool bore and is
then routed to the output port of the module valve body.
If pressure behind the valve increases due to the effect
of external load acting on the user, the control spool
shifts further against the spring, the reducing metering
edge closes and the second metering edge opens. The
fluid passes through the „third way“ to port T. The
control flow of the pilot valve (from the spring room) is
also routed to port T.
Model MA
With this model, the flow enter into the valve body
through port A1. The input pressure is reduced, routed
to port A2 and further to the user. The reverse flow
passes through a check valve which is connected
parallel to the metering edge.
Model MP
With the model MP, the pressure is reduced from port P2
to port P1.
With all models, a control pressure gauge can be
connected to port G 1/4 (7).
The valve body and the adjustment screw are zinc
coated. With model M the valve bodies are phosphate
coated.
B1
B2
A1
A2
T
HA 5153
4/2008
Replaces
HA 5153 2/2007
Size 06 · p
max
320 bar · Q
max
40 L/min
Pilot Operated Pressure Reducing
Valve
VRN2-06
q
Screw-in cartridge valve for manifold mounting
and stacking assemblies
q
4 pressure ranges
q
Two pressure adjustment options
q
Pressure reduction in ports A or P
q
Model MA with check valve
q
Installation dimensions to ISO 4401-AB-03-4-A
and DIN 24 340-A6
Functional Description
A
T
P
2
HA 5153
Ordering Code
Functional Symbols
Valve side
Subplate side
Model MA
Model MP
VRN2-06/ -
Nominal size
Pilot Operated Pressure Reducing Valve
Sealing
without designation
V
NBR
Viton
Pressure range
6
10
16
21
up to 63 bar
up to 100 bar
up to 160 bar
up to 210 bar
Model
screw in cartridge
modular valve, pressure reduction in port A
modular valve, pressure reduction in port P
S
MA
MP
Adjustment element
S
R
screw with internal hexagon 6 mm
hand knob
Nominal size mm 06
Maximal flow rate L/min 40
Maximum pilot flow L/min 0.25
Max. input pressure (port P) bar 320
Max. output pressure (port T) bar 160
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 (NBR / Viton) °C -30 ... +100 / -20 ... +120
Viscosity range mm
2
/s 20 ... 400
Maximum degree of fluid contamination Class 21/18/15 according to ISO 4406
Weight: model S
model MA
model MP
kg
0,22
1,20
1,10
Mounting position unrestricted
FOR PREFERRED TYPES SEE BOLD TYPING IN ORDERING CODE
AND TABLE OF PREFERRED TYPES ON PAGE 6
Technical Data
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
MA06-VRN2 16002400 MA06-VRN2/V 22995500
MP06-VRN2 16002200 MP06-VRN2/V 22995000
HA 5153
p-Q Characteristics Measured at n = 32 mm
2
/s
Safety pressure [bar]
Flow Q [L/min]
P1 - T, A2 - T P2 - P1, A1 - A2
Pressure drop Dp[bar]
Flow Q [L/min]
3
3
1
2, 5
4
40
35
25
30
20
10
15
5
0 5 10 15 20 25 30 35 40
6
1-A1toA2
2 - A2 to T (3rd. direction of flow)
3 - A2 to A1 flow across check valve
and the fully opened main spool
4-P2toP1
5 - P1 to T ( 3rd. Direction of flow)
6 - A2 to A1 flow only across check valve
Dp-Q Characteristics Measured at n = 32 mm
2
/s
40 30 20 10 0 10 20 30 40
160
120
80
40
320
280
240
200
Pressure range 21
Pressure range 16
Pressure range 10
Pressure range 6
Reduced pressure [bar]
4
HA 5153
Valve Dimensions Dimensions in millimeters
Model R
654 2
654 31
1 Adjustment element S [screw with internal HEX 6]
2 Adjustment element R (hand knob)
3 Locknut HEX 27
4 Wrench flats s = 24 mm - tightening torque 30 Nm
5 O-ring 19,4 x 2,1 NBR 80 (1 pc.), supplied with valve
6 Combined sealing: O-ring 14 x 1,78 NBR 90 (2 pcs.)
Back-up ring 14,73 x 17,43 x 1,14 (2 pcs.)
(supplied with valve)
Cavity
Model S
5
HA 5153
Valve Dimensions Dimensions in millimeters
1
3
4
5
2
1
3
4
5
2
1 Name plate
2 Adjustment elements
3 4 through mounting holes
4 Square ring 9.25 x 1.68 (4 pcs.), supplied with valve
5 Plug G1/4 (for pressure gange)
Model MP
Model MA
Required surface finish
of interface
6
HA 5153
Caution!
Spare Parts
The packing foil is recyclable.
The protecting plate can be returned to the manufacturer.
Mounting studs must be ordered separately. Tightening torque is 8.9 Nm.
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.
Model Dimensions, quantity Ordering number
Screw-in cartridge - NBR
O-ring 9 x 1,8 NBR 70 (1 pc.)
17363800
O-ring 14 x 1,78 NBR 90 (2 pc.)
O-ring 17 x 1,8 NBR 70 (1 pc.)
O-ring 19,4 x 2,1 NBR 80 (1 pc.)
Back-up ring BBP80B015-N9 14,73 x 17,43 x 1,14 (2 pcs.)
Back-up ring BBP80-B-016-N9 16,33 x 19,03 x 1,14 (1 pc.)
Screw-in cartridge - Viton
O-ring 9,25 x 1,78 (1 pc.)
22925500
O-ring 14 x 1,78 (2 pcs.)
O-ring 17,17 x 1,78 (1 pc.)
O-ring 19,4 x 2,1 (1 pc.)
Back-up ring 14,73 x 17,43 x 1,14 (2 pcs.)
Model Dimensions, quantity Ordering number
Modular valve - NBR
O-ring 9 x 1,8 (1 pc.)
15987200
O-ring 14 x 1,78 (2 pcs.)
O-ring 17 x 1,8 (1 pc.)
O-ring 9,75 x 1,78 (1 pc.)
O-ring 19,4 x 2,1 (1 pc.)
Back-up ring 14,73 x 17,43 x 1,14 (2 pcs.)
Back-up ring 16,33 x 19,03 x 1,14 (1 pc.)
Square ring 9,25 x 1,68 (4 pcs.)
Modular valve - Viton
O-ring 9,25 x 1,78 (5 pcs.)
22925600
O-ring 14 x 1,78 (2 pcs.)
O-ring 17.17 x 1.78 1 pc.)
O-ring 19,4 x 2,1 (1 pc.)
Back-up ring 14,73 x 17,43 x 1,14 (2 pcs.)
Back-up ring 17,4 x 1,3 (1 pc.)
Type Ordering Number
VRN2-06/S-10S 15997200
VRN2-06/S-21S 15997500
VRN2-06/MP-10S 15998400
VRN2-06/MP-21S 15999000
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
Preferred Types of Valves
