241
Dixon Sanitary 2014
800.789.1718
Rack & Pinion Actuators
RP-MA Series 180° Aluminum Rack and Pinion Actuators
Available in:
•
air to open / air to close (ATO/ATC)
•
air to open / spring to close (ATO/STC)
•
spring to open / air to close (STO/ATC)
Features and Benefits
Specifications
•
twin rack and pinion design
•
female double square output shaft
•
ISO 5211 bolt patterns
•
piston and pinion lubrication: non-silicone grease
•
range of rotation adjustment: 170° to 190°
•
operating media: dry or lubricated non-corrosive gas
•
operating pressure:
40
to
120
PSI
•
maximum pressure rating:
150
PSI
•
temperature range:
-40
°F
to
176
°F
•
NAMUR VDI/VDE 3845 and ISO 5211 dimensions on all
sizes, no special blocks are required to mount solenoid
valves, limit switches or positioners.
•
The standard angle of rotation is 180°, additional travel
rotations of 120°, 135°, 150° are available.
•
MA016 and larger sizes feature a travel stop with ±10°
adjustment in both open and close directions (International
Patent).
•
The patent pending bottom plate design, unique to Dixon
Sanitary secures a captive pinion (anti-blowout system) and
permits flexibility in mounting by retaining AISI 304 nuts
(
standard) or AISI 304 bolts (optional). Available in either
dual ISO patterns or to customer dimensions.
•
All pinions are supplied with anti-blowout retention in both
directions.
•
The female pinion drive is standard with a double square
output drive and optional with a double-D drive, keyed drive
and designs to meet your specific requirements.
•
Shaft bearings isolate the pinion gear from the housing and
support the shaft for high cycle applications.
•
The pinion teeth are engaged for the full length and stroke of
the piston. The pinion height allows manual override without
disturbing the position indication.
•
Extruded aluminum body is internally machined and lapped
to exact specifications. All internal and external surfaces are
anodized for corrosion resistance.
•
For additional corrosion resistance actuator can be epoxy
coated.
•
An external open/closed indicator is standard and available
for all rotations.
•
Pistons incorporate double wear pads to separate the rack
from the actuator wall and serve as both guide and wear
bearings.
•
Epoxy coated special steel springs are pre-loaded with
non-metallic materials. The stainless steel end cap fasteners
are extra long to allow for spring relaxation, all parts are
corrosion resistant.
•
Air pressure operation from 40 to 150 PSI. Water, nitrogen
and compatible hydraulic fluids may be used to power the
actuator.
•
All external fasteners are corrosion resistant stainless
steel.
•
All units are permanently lubricated at the factory with
non-silicone grease.
•
All units are externally stamped with a progressive
traceable serial number.
•
100%
of all units are factory pressure and leak tested.
M