File: A6600$_E 08/2009/eIV • 19
4
LIMITS OF USE
p (bar)
Q (l/min)
A.66.*.121.*...
A.66.*.*.A1
A.66.*.*.B1
A.66.*.*.P
A.66.*.120.*... A.66.*.*.A
A.66.*.*.B A.66.*.*.T
121 (NC)
120 (NA)
A.66...
MODULAR FLOW CONTROL VALVES
FAST
/ SLOW ASSEMBLY CETOP 3
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 2,4 Kg
This is modular assembly ON/OFF
solenoid valve which, by fitting 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 operational limit curves have
been obtained with the regulator
fully closed, and those same limits
improve gradually with the open-
ing of the regulator.
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
/s at
40 degrees C.
HYDRAULIC SYMBOLS
OVERALL DIMENSIONS
Support plane
specifications
A.66...
DC COILS CH. I PAGE 67
STANDARDCONNECTORS CH. I PAGE 19
QC.3.2... CH. III PAGE 2
SCREWS AND STUDS CH. IV PAGE 21
A Speed control valve
66 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
* 4 = Serial No.
TAB.2 - VARIANTS
No variant 00
(connectors as in the drawing)
Viton V1
Indicator light X1
Rectifier R1
Cable gland "PG11" C1
Valve without connector (coil) S1
Indicator light + rectifier XR
ORDERING CODE
TAB.1 VOLTAGE
L 12V
M 24V
V 28V*
N 48V*
Z 102V*
P 110V*
X 205V*
W without coils
DC COILS
(*) Special voltage
Voltage codes are not stamped on the plate, their are
readable on the coils.
115Vac/50Hz
120Vac/60Hz
with rectifier
230Vac/50Hz
240Vac/60Hz
with rectifier
