File: A88003_E 03/2000/eIV • 33
4
A.88.*.121.*...
A.88.*.*.A1...
A.88.*.*.B1...
A.88.*.*.P...
A.88.*.120.*... A.88.*.*.A...
A.88.*.*.B...
A.88.*.*.T...
p (bar)
Q (l/min)
121 (NC)
120 (NA)
p (bar)
Q (l/min)
Support plane
specifications
A.88...
MODULAR FLOW CONTROL VALVES
FAST
/ SLOW ASSEMBLY CETOP 5
Max. operating pressure 320 bar
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 with a DC solenoid 4,2 Kg
This is a modular assembly ON/OFF
solenoid valve which, by fitting a suit-
able 2 way regulator, allows two speed
operation in the same system via an
electrical changeover command.
The flow rate regulator type QC.3.2
must be ordered separately.
The limit of use curves have been
obtained with the regulator fully
closed, and those same limits im-
prove gradually with the opening of
the regulator.
• Solenoids used are standard type
A16 for DC voltage.
HYDRAULIC SYMBOLS
H = QC.3... interface holder
The test have been carried out at operating tempera-
ture, with a voltage 10% lower than rated voltage and
with a fluid temperature of 50 degrees C. The fluid
used was a mineral based oil with a viscosity of
46 mm
2
/sec at 40 degrees C.
LIMITS OF USE
DC SOLENOID
FREE FLOW
THROUGH
SPOOL
A.88...
"A16" DC COILS CH. I PAGE 35
STANDARD CONNECTORS CH. I PAGE 19
QC.3.2... CH. III PAGE 2
SCREWS AND STUDS CH. IV PAGE 35
ORDERING CODE
A Speed control valve
88 Size
E Electrical operator
*** 120 = Normally open
121 = Normally closed
See table "Hydraulic symbols"
* Control on lines A/B/P/T (see symbols)
The interface holder "H" must
be turned by 180° in order to
obtain the A1 and B1 versions.
* Voltage : see tab.1
** Variants: see tab.2
3 Serial No.
TAB.2 - VARIANTS
No variant 00
(connectors as in the drawing)
Viton V1
Indicator light X1
Rectifier R1
Cable gland "PG11" S1
Valve without connector (coil) S1
Indicator light + rectifier XR
TAB.1 - A16 COIL
* Special voltage
Voltage codes are not stamped on the plate,
their are readable on the coils.
DC VOLTAGE
L 12V
M 24V
N 48V*
P 110V*
Z 102V*
X 205V*
W Without DC coil
115Vac/50Hz
120Vac/60Hz
with rectifier
230Vac/50Hz
240Vac/60Hz
with rectifier
