Aalborg PSV Series - Manual

PREPARATION and OPERATION
Prior to connecting gas/liquid flow lines inspect all parts of the
piping system including ferrules and fittings for dust or other
contaminants. Be sure to observe the direction of flow as indi-
cated by the arrow on the front of the valve when connecting
the fluid flow system to be monitored.
Insert tubing into the compression fittings until the ends of the
properly sized tubing home flush against the shoulders of the
fittings. Compression fittings are to be tightened according to
the manufacturer's instructions to one and one quarter turns.
Avoid over tightening.
Once installed inline with the gas or liquid to be controlled,
apply a variable DC power source at the two solenoid wires to
proportionally open and close the solenoid valve (there is no
polarity). The valve is set to begin opening at approximately 5
VDC. They can also serve as "on off" valves (valves are not
guaranteed for absolute closure). Optional PSV-D DRIVER
MODULE is available when use of a 0 to 5 VDC or 4 to 20 mA
reference control signal is desired. Contact your distributor or
Aalborg
7 for more information.
SPECIFICATIONS
POWER INPUT: 0 to 30 VDC.
MAXIMUM CURRENT REQUIRED: 400 mA.
ELECTRICAL CONNECTION: Male spade connectors.
TYPE OF OPERATION: Normally closed (nc).
CONNECTIONS: 1/4 inch compression fittings,
optional 1/8 inch and 3/8 inch.
DIMENSIONS: 3.55 inch (90.2mm) high x 3.25
inch (82.6mm) long (with fittings)
x 1.00 inch (25.4mm) deep.
WETTED MATERIALS: Types: 316 and 416 stainless steel,
VITON 7 O-rings; BUNA-N7,
EPR or KALREZ 7 O-rings
are optional.
MAXIMUM PRESSURE: 500 psig (3448 kPa).
MAXIMUM DIFFERENTIAL
PRESSURE:
50 psid (345 kPa).
MAXIMUM INTERNAL LEAK: 0.5% FS.
LEAK INTEGRITY: 1 X 10 -9 scc / sec Helium.
FLUID TEMPERATURE: 14 F F to 122 F F (-10 F C to 50 F C).
MAXIMUM TEMPERATURE
(TYPICAL):
174 F F (79 F C) inside, 130 F F
(54 F C) outside surface at 24 VDC.
ENVIRONMENTAL (PER IEC 664): Installation level II; pollution
degree II.
MODEL
NUMBER
ORIFICE SIZE
Cv
*maximum flow
[ml / min]
[inch] [mm] Air Water
PSV-1 0.020 0.51 0.009 3500 125
PSV-2 0.040 1.02 0.033 13000 400
PSV-3 0.055 1.40 0.055 21500 700
PSV-4 0.063 1.60 0.068 25000 850
PSV-5 0.125 3.18 0.240 100000 2873
PROPORTIONATING SOLENOID VALVES
pressure drop
PSV Proportionating Solenoid Valves are uniquely designed
to respond to variable power inputs (0-30 VDC) to regulate
flow of liquids and/or gases proportionately. For added safety
PSV valves are normally closed (NC) when de-energized.
* based on 10 psig [690 mbar] differential pressure.