 Trak-Lok®
449 Series
Limit Switch and Position Monitor
The Trak-Lok 449 Series limit switch and position monitor provides point-to-point limit switch signaling combined with continuous on-site visual monitoring in one compact UL/CSA rated NEMA enclosure.
It is ideally suited for use with the Tork-Mate® Series pneumatic actuator for operation of Posi-flate® inflatable seated butterfly valves.
The Trak-Lok 449 Series utilizes high grade
components throughout for dependable and economical valve monitoring
in an industrial process environment, providing improved information
flow, safety management and productivity.
Advantages
- Two SPDT limit switches provide positive
end position monitoring of valve travel.
- High visibility display beacon provides
visual “open” and “closed” valve position
monitoring from distances up to 150 feet.
- Start-up and operating personnel have
instant access to the exact position of automated valves without
placing themselves in awkward or dangerous situations.
- Guesswork in the evaluation of operational
readiness is eliminated. A concrete measure of valve performance
is provided while efficient plant maintenance habits are encouraged.
- Standard housings available comply with
NEMA 4/12 and NEMA 7/9 classifications.
- Instantaneous hand-setting of limit switches
requires only seconds.
- Direct wire-feed terminal strips are numbered
and color-coded, with generous working space for wiring.
Options
- Many specific brands of limit switches
can be used in the housing, including proximity sensor switches.
- A UL/CSA rated housing can be built to
comply to any NEMA electrical rating or explosion proof classification.
- A pressure switch can be added to provide
electrical verification of seat inflation.
- Four SPDT limit switches or two DPDT limit
switches can be used.
- Custom terminal strips with additional
contacts are available.
- Consult factory for feasibility of other
types of options or configurations.
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