ITT Engineered Valves
Dia-Flo Limit Switch
The Dia-Flo limit switch package gives remote indication of whether a Dia-Flo valve is open or closed. Mechanical and proximity versions are available, including models rated for hazardous locations.
Product Benefits
- Position without a site visit: Knowing valve position from the control room removes guesswork and manual checks.
- Feedback for interlocks: It provides the confirmation interlocks need that a valve actually moved.
- Mechanical or proximity: The range covers proven mechanical micro-switches and non-contact proximity switches.
- Ready-made switch packs: Switches are supplied individually or as convenient pre-assembled packs.
- Classified areas covered: Hazardous-location models let the same approach extend into classified areas.
Where It's Used
- Valves feeding a control system: Limit switches are fitted wherever automated Dia-Flo valves report to a control system.
- Batching and treatment plants: Batching sequences and treatment plants are typical settings.
- Interlocked services: Process interlocks that must verify open/closed status depend on them.
- Simple remote monitoring: They are equally useful on valves whose position simply needs to be monitored remotely.
Good to Know
- Three configurations: Options include mechanical switches, proximity switches, and combination switch packs that pair both technologies.
- When to choose mechanical: Mechanical types suit simple, robust indication.
- When to choose proximity: Proximity types fit environments where non-contact sensing or sealed electronics is the better match.
- Confirm area classification: Settle the area classification early so that hazardous-location models are specified where required.
