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Technical Specifications - Parker U121V5595 Serie Installations-, Betriebs- Und Wartungsanleitung

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TECHNICAL SPECIFICATIONS

1/ Pressure range : 0 - 7100 kPa
2/ Pressure range : 0 - 9800 kPa
MTBF limited 100 000 cycles
Safe body working pressure: 10'500 kPa.
Flow orifice: 1 mm
Flow conductance: C = 0.13
Flow factor: Cv = 0.04
Qn: 40 (NL/mn)
VALVE FUNCTION
The valves described herewith are of the direct
solenoid operated 2/2 normally closed type.
Closed when de-energized:
pressure to port 1
user to port 2
PORT THREADS
Port threads are 1/4'' NPTF.
MOUNTING POSITION
The valve may be mounted in any position or at any
angle.
FLUID
The valves are designed for use with N2 (dry) Co2,
neutral gases.
ELECTRICAL PARTS
A) Intrinsically safe (IS) electrical parts (ia,ib)
482660, 483330.01,492965... and 490860 with an
integrated booster circuit. The
switch-on is for this reason approx. 3 sec. After
switch-off allow for a minimum 3 sec. delay at 0V
before switch-on. Please pay attention to the correct
polarity.
IMPORTANT. Above mentioned IS electrical parts
may only be connected to a 24 VDC (nom) 28 VDC
(max.) power supply by placing a suitable passive IS-
safety barrier or an active IS-Interface.
For test purpose, when a barrier is not available, it
should be replaced by a 270 Ohms resistor in series
with the coil.
No resistor is necessary for 492965... (Current supply
min. 40 mA, max.110/280 mA Voltage: min. 21.6V, for
492965.., min. 20 mA / 13V).
IS electrical parts are fully encapsulated. Cable entry
through a M20x1.5 conduit hub. The screw terminals
become accessible after removal of the housing
cover. (For use with FM/CSA approved coil 490860
please refer to INSTALLATION DIAGRAM VO-96-
008.)
Parker Hannifin Manufacturing Switzerland SA
16 Ch du Fbg-de-Cruseilles
1227 Carouge – Geneva, Switzerland
Installation, Operating & Maintenance
Spool valves series
U121V5595 - U121V5596 – U121V55961D - U121V7595
response time at
B) Explosion proof electrical parts (e mb)
Mod. 492200*, 492210*, 492300 and 492310 are fully
epoxy encapsulated.
The screw terminals become accessible after removal
of the housing cover. The El. part may be mounted
with the conduit hub upward or downward. (*) With
integrated booster, response time approx. 3 sec.
C) Flameproof electrical parts (d mb)
Mod. 483270 has cast iron enclosure with M 20x1.5
conduit hub. In order for this electrical part to become
fully flameproof the cable must be drawn into the
housing through a certified Exd cable gland.
Mod. 496560 is fully epoxy encapsulated. The screw
terminals become accessible after removal of the
housing cover.
IMPORTANT. Never connect electrically the coils
unless these are properly placed in the housing.
FAILURE AND MAINTENANCE
These valves are manufactured and tested against a
severe Quality Assurance Programme. Test and
identity certificates assure materials traceability in
case of valve failure. Under normal operating
conditions,
the
valves
maintenance. A valve which does not appear to be
working normally should be returned to the nearest
PARKER LUCIFER distributor
APPROVALS
Process Control Technology
MC Protection Equipment
Safegarded function (IEC 61508)
The following valves with their electrical parts can be
used in SIL-3 applications according to Exida
Certification:
Certificate No.Parker Lucifer 0802-28 P0001 C01 and
FMEDA Report No. Parker Lucifer 0802-28-C R001
V1R1
To be compliant with the certification, the valves must
be used with the compatible electrical parts (certified
ATEX & IECEx).
U121V5595
with the global code 7121VRN2CP95
U121V5596
with the global code 7121VRN2CP96
U121V55961D with the global code 7121VRN2CP9H
PN 493118 PB 407572 - Rev. 4 date: 23.06.2015
2
1
do
not
require
any

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