Product Description; General Product Description - Flowserve LTQ008 Series User Instructions

3 Product Description

3.1 General Product Description

a) LTQ008 – LTQ203
The LTQ008 – LTQ017 Series are quarter-turn, electric industrial service actuators delivering up to 1770 lbf-in
of torque with voltages ranging from 12V to 230V with on/off or proportional control modes. These NEMA 4X
and IP67 compliant units are equipped with two volt-free Form A auxiliary switches rated at, up to, 10A
250VAC and a standard clutch-free, manual-override handwheel. Additionally, these units feature two ¾"
EMT entry ports with sealed cable glands and a raised visual position indicator, as standard. Users have the
option to customize these units with the following features: torque switches, motor control centers, local
control stations, IP68 submersible, battery backup, supercap backup, and interchangeable ISO5211
flanges and drives. This series is ISO5211 compliant, mounting with double, square female drive inserts.
b) Control Station
Local Control Stations (LCS) provide a means to select Local or Remote control of a valve or damper
actuator. The LCS offered on the 008-203 sizes (LL) features unique capabilities, LED feedback, and a
human-machine interface.
c) Battery Backup
The LTQ008-088 Series actuators ending in "B0B00" have an internal battery backup system and are
quarter-turn industrial electric actuators designed to operate valves and dampers in municipal, heavy
commercial or industrial applications. These units are NEMA 4/4X, IP67 rated, and feature on/off or
proportional control versions to interface to most field control signals. The LTQ008-088 Series with battery
backup operate on 24vac or 24vdc power supplies. Limitorque offers 120v and 230v transformers
packaged in stainless steel wall mounted enclosures sized to provide the required power for the actuator
and the battery system.
The battery pack and charge controller are integral to the actuator housing in the 034-088 and in an
attached compartment in the 008-017. Wiring of the actuator and battery system is completed through
access to a single terminal location. The battery system is designed to provide a minimum of two years of
field service (depending on application and actual conditions of use). The battery pack is field
replaceable.
3.1.1 Type LL (LED type)
This is a NEMA 4/4X and IP67 (optional IP68) type, rectangular enclosure, that is integral to the actuator
housing. This type contains two non-intrusive (magnetic) knob switches for mode and position control. This
version also employs an LED panel with five, bright LEDs mounted behind the glass with indicators for
actuator operations. The two rotary control knobs provide the user with the ability to operate the actuator
in a normal (REMOTE) mode where the actuator responds to control signals from a BAS, PLC, or other
control device. Or the user can elect to operate the actuator in a LOCAL mode where the user can control
the positioning of the actuator while standing at the device. This allows opening and closing of the
actuator (valve) to test for operation and to perform maintenance, or other function, without relying on
radio communication to command the automation system to position the actuator. The five LEDs provide a
visual indication of the position and status of the actuator with indicators for open, close, remote, local,
and fault. Open (green) and close (red) flash when the actuator is moving CCW (90°) or CW (0°),
respectively, and they remain lit upon reaching the end-of-travel. This version is available on the LTQ008
through the LTQ203 Series for all single-phase and low voltage actuators.
LTQ008 – LTQ230 Series Single-Phase Products User Instructions –
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