Closed-loop air piloted digital proportional
pressure control valve
Fully programmable with on-board diagnostics
Multi option language display, with offline setup
Instant LED warning lights and pressure output
display
Excellent performance characteristics
Fast response time and high flow
Adjustable gain
Low power consumption
Feedback signal
Manifold mountable
Technical features
Medium:
Compressed dry air, oil free
filtered to 5 μm.
Operation:
Air piloted spool valve with
integrated electronic
pressure control
Output (nominal) pressure:
0 ... 6 bar, (0 … 90 psi);
0 ... 10 bar, (0 … 150 psi)
Supply pressure:
Minimum 2 bar above maximum
output required, 12 bar max.
Air supply sensitivity:
Better than 0,75% span output
change per bar supply
pressure change
Flow:
Up to 1400 N l/min
(see characteristic curves)
Air consumption:
‹ 5 N l/min
Fluid/Ambient temperature:
0 ... +50°C
Air supply must be dry enough
to avoid ice formation at
temperatures below +2°C.
Temperature sensitivity:
Typically better than
0,03% span/°C
Degree of protection:
IP65 in normal operation
(exhaust and baffle protected
from water ingress at
temperatures ‹+5°C)
3 way proportional pressure control valve
VP51
G 1/4, 1/4 NPT or manifold
P
=
Linearity:
‹ 1%
Hysteresis and deadband:
‹ 1%
Response time:
‹80 ms (from 10 ... 90% of
output pressure into a 0,1 litre
load)
Vibration & shock immunity:
‹3% span
0,75 m/s², 5 ... 150Hz,
1 m/s², 5 ... 150Hz
Weight:
0.60 kg
Materials
Body: Aluminium
Lid: Zinc die cast,
Front cover: Nylon
Maintenance:
No maintenace required
Calibration:
Gain, Span, Zero
Electrical details
Electromagnetic compatibility
Electrical input signal
Electrical power input
Output pressure feedback signal
Connections
Output pressure Substitute
0 ... 6 bar/90 psi
0 ... 10 bar/150 psi
Unit for pressure Substitute
bar
psi
Other pressure ranges are available to
special order: For options not shown
and any specific requirements please
contact the Norgren technical
department via; www.norgren.com/ws
8/13 2006-125d
Conforms to EC requirements
EN 50081-2 (1994) and EN 50082-2 (1995)
4 ... 20 mA or 0 ... 10 V factory set
24 V d.c. ±25%, (power consumption < 1 W)
0 ... 10 V full range, <±1%
M12x1, 5-pin
VP51˙˙˙˙˙11H00Option selector
06
10
B
P
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document.
Input signal Substitute
0 ... 10 V
4 ... 20 mA
Port size Substitute
G 1/4
NPT 1/4
Manifold
N/en 6.6.040.01
1
4
J
K
X
VP51
2000 400 600 800 1000
Nl/min
bar
Connecting plugs
Elbow connector M12 x 1
Page 4
0250081
Manifold mount assembly to ISO 2 sub base
Single manifold
Page 4
ZZ5M00
O-rings, flat seal and screws are included
Electrical connector pin looking
into the end of the instrument
Pin-No. Function
1 +24 V d.c. supply
4
2 0 ... 10 V feedback
1253
3 Control signal (+VE)
4 Common (supply signal and feedback return)
5 Chassis
Characteristic curves
Forward flow characteristics
(supply pressure 11 bar)
10
9
8
7
6
5
Outlet pressure
4
3
2
1
0
0 200 400 600 800 1000 1200 1400 Nl/min
Flow Flow
Valve built in user adjustable settings
Setting Options
Language English, Español, Français, Italiano, Deutsch
Pressure units Bar, atm, kg/cm2, kPa, psi
Password Protection Protect against unauthorised adjustment of the valve
Off-line Set up Min Set up Set pressure between 0…10 Bar and Min – Max Signal
Max Set up Set pressure between 10…0 Bar and Min – Max Signal
Speed Setting Change the time taken to ramp between two pressures. (Volume dependent)
Dynamic Response Allows the Integrator settle time to be set
Dither Amp Amplitude of the dither on the spool
On-line Set up Min Set up Can be used for fine adjustment of output pressure at a given signal
Max Set up Can be used for fine adjustment of output pressure at a given signal
Monitor Set up Monitor Output Display feedback for user information.
Green Indicator Shows power is present and can be set to flash when the output pressure is outside specified limits
Red Indicator Normally off. Can be set to flash if the output pressure does not reach the required value within a specific time limit. Will also flash when the unit is set to local control.
Local Control Manual Control Valve output can be set using the arrow keys
Factory Defaults Option to resets the valve to the Factory default settings.
10
8
6
Outlet pressure
4
2
0
Relief flow characteristics
(supply pressure 9 bar)
N/en 6.6.040.02
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document.
2006-125d 8/13