Alfa Laval Unique RV-P User Manual

6 Technical data
Technical data must be observed during installation, operation and maintenance.
All personnel should be informed about the technical data
6.1 Technical data
Working principles
The Product is remote-controlled by an electrical signal and compressed air. The IP-converter, which is an integrated part of
the actuator, converts the electrical signal to a pneumatic signal. This signal conversion is extremely insensitive to pressure
shocks. The pneumatic signal is transmitted to the integrated positioner which operates by means of the force-balance principle,
ensuring that the position of the actuator piston is directly proportional to the input signal.
Valve
Data
Max. product pressure
1000 kPa (10 bar)
Min. product pressure
Full vacuum
Temperature range
-10°C to +140°C (EPDM)
Flow range Kv
0.5to110m
3
/h/bar
Materials
Product wetted steel parts
AISI 316L
Other steel parts
AISI 304
Lip seal
EPDM (standard)
Finish
Semi-bright
Actuator
Air data
Connection 6/4 mm air tube
Max. air pressure
700 kPa (7 bar)
Working pressure
400 kPa (4 bar)
Max. size of particles
0.01 mm
Max. oil content
0.08 ppm
Dew point
10°C below ambient temp. or lower
Max. water content
7.5 g/kg
Transducer/convector
Signal range
4-20 mA (standard)
Input resistance
200 W
Inductivity/capacistanc
e
Negligible
Accuracy
Deviation
≤1.5%
Hysteresis
≤0.5%
Sensitivity
<0.1%
Influence of air supply
≤0.1% between 1.4 and 6 bar
Data
Protection class IP66
Ambient temperature
-20°C to +80°C
Materials
Housing Aluminium with plastic coating
Diaphragm
NBR with reinforced fabric insert
Springs Stainless steel uncovered/spring steel epoxy resin coated
Stem Stainless steel
Plastic parts
Polycarbonate/polyamide 6.6
Screws, nuts
Stainless steel, polyamide 6.6
Other parts
Stainless steel and aluminium
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Alfa Laval Unique RV-P Specifications

General

Brand	Alfa Laval
Model	Unique RV-P
Category	Control Unit
Language	English