File: AM5VR001_E 03/2010/eIV • 27
4
∆P (bar)
Q (l/min)
Q (l/min)
P (bar)
1
2
3
Q (l/min)
P (bar)
3
2
1
Q (l/min)
P (bar)
3
2
1
AM.5.VR... MODULAR PRESSURE REDUCING VALVES
WITH RELIEVING
- PILOT OPERATED CETOP 5
Max. operating pressure 350 bar
Setting ranges: spring 1 60 bar
spring 2 120 bar
spring 3 250 bar
Maximum allowed
∆ ∆
∆ ∆
∆p pressure
between the inlet and outlet pressure 150 bar
Max. flow 90 l/min
Draining on port T 0,5 ÷ 0,7 l/min
Hydraulic fluids Mineral oils DIN 51524
Fluid viscosity 10 ÷ 500 mm
2
/s
Fluid temperature -25°C ÷ 75°C
Ambient temperature -25°C ÷ 60°C
Max. contamination level class 10 in accordance
with NAS 1638 with filter ß
25
≥75
Weight 3,73 Kg
Weight by-pass version 6,56 Kg
These pressure reducing valves en-
sure a minimum pressure variation on
the P or A port with changing flow rate
up 90 l/min.
Three spring types allow adjustment
with the range 7 ÷ 250 bar.
Manual adjustment is available by a
grub screw or plastic knob.
The RELIEVING SYSTEM inside the
valve AM.5.VR allows the passage
from the setting pressure line to T line
of the flow through the valve to avoid
the increasing of pressure in the re-
duced-pressure line by diverting ex-
ceeding flow to reservoir.
A by pass module with check valve for
free flow from A to AR port (see hy-
draulic symbol) is available.
ORDERING CODE
The fluid used is a mineral oil with a viscosity of
46 mm
2
/s at 40°C. The tests have been carried out at
a fluid temperature of 50°C.
Curves n° 1 - 2 - 3 = setting ranges
∆∆
∆∆
∆P AM.5.VR... + BY-PASS MINIMUM SETTING PRESSURE
PRESSURE-FLOW OF RELIEVING
PRESSURE-FLOW RATE
To change valves AM.5.VR.P... from internal
to external drainage it is necessary:
- screw out the plug on the Y port
- screw out the plug T.C.E.I. M8x1 from the body
- screw in a screw S.T.E.I. M6
- rescrew the T.C.E.I. M8x1 plug on the body
NOTE: the external draining can be used as
a piloting line (please, concta our Technical
Service for other informations)
AM Modular valve
5 CETOP 5/NG10
VR Pilot operated pressure
reducing valve with relieving
* Control on lines
P = Drain on T
A = Drain on T
D = Drain on B reduct pressure on A
* Drain connection
E = External (only for control on the P line)
I = Internal (Standard)
B Version with by-pass
on line A only
Omit if not required
* Type of adjustment
M = Plastic knob
C = Grub screw
* Setting ranges
1 = max. 60 bar (white spring)
2 = max. 120 bar (yellow spring)
3 = max. 250 bar (green spring)
** 00 = No variant
V1 = Viton
1 Serial No.
AM.5.VR...
CVR.20... BFP CARTRIDGE CATALOGUE
SCREWS AND STUDS CH. IV PAGE 35
HYDRAULIC SYMBOLS
AM.5.VR.P... AM.5.VR.A...
Version with check valve
AM.5.VR.D...
AM.5.VR.A... +
Bypass
File: AM5VR001_E 03/2010/eIV • 28
4
AM.5.VR.P... / AM.5.VR.D...
AM.5.VR.A... + BYPASS
OVERALL DIMENSIONS
AM.5.VR...
MODULAR PRESSURE REDUCING VALVES
WITH
RELIEVING
- PILOT OPERATED CETOP 5
Type of adjustment
M Plastic knob
C Grub screw
Support plane
specifications
B By-pass (optional)
Ordering code:
V89.46.0000
(if ordered separately)
