Flowserve L120-85 Actuator - Manual (Page 8)

2.2 Product Description
Your L120-85 actuator controls the opening and closing travel of
valves or other actuated devices. OPEN and CLOSED limits are
protected by Limit Switches and output torque is measured and
protected by the Torque Switches. As a result, all valves and other
actuated devices are protected from potential damage from overload,
improper seating and foreign obstructions.
Limitorque actuators may be mounted on any appropriately sized
valve in almost any position or location.
Microprocessor-based controls and monitoring devices are also
available for installation on your actuator. Contact your local Limi-
torque distributor or Limitorque sales office for further information.
2.3 Product Features
• Up to 850 ft-lb/1156 Nm torque capacity.
• Up to 45,000 lb./20250 kg thrust capacity.
• Up to 3.25"/76 mm threaded stem capacity.
• Up to 2.75"/70 mm bore capacity.
• Torque Only (Drive 1) or Torque and Thrust (Drive 2) actuators,
with removable ductile iron thrust base assembly.
• Torque unit can be removed from thrust base while valve position
is maintained.
• Standard cast iron gear case.
• All power gearing supported on anti-friction bearings.
• All gearing is alloy, heat-treated steel or bronze.
• Speed range of 24-192 RPM (60 Hz), 20-160 RPM (50 Hz).
• Declutch force independent of load on valve stem.
• Self-locking gearing available.
Figure 1: Limitorque L120-85 Actuator
Thrust
Base
Handwheel
Electrical
Compartment
Cover
Conduit
Openings
(plugged; two additional openings
are supplied on the bottom of the
Electrical Compartment)
Housing
Declutch
Lever
Motor
Position
Indication
Window
Limitorque L120-85 Installation, Operation and Maintenance FCD LMENIM1202-00 – 11/05
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