
Limit Switch Box · PLC/DCS Feedback · Fire Protection · HVAC
Reguvale’s signal butterfly valve is a butterfly valve fitted with a limit switch box that provides open/close position feedback to a PLC, DCS or building management system. The mechanical or proximity switches give dry contact signals for remote valve status monitoring.
Widely used in fire protection systems (fire sprinkler and suppression), HVAC automation, water treatment and any application where operators need to know remotely whether a valve is open or closed. Available with manual, pneumatic or electric actuation.
Body materials: ductile iron GGG50, carbon steel WCB, stainless steel CF8/CF8M. Limit switch box: mechanical or inductive proximity, IP67 rated, ISO 5211 mounting. DN50–DN2000, flanged or wafer ends.
Limit switches give dry contact signals showing valve open/closed status.
Signals wire directly to PLC, DCS or building management system inputs.
Choose mechanical limit switches or inductive proximity sensors per application.
Weatherproof switch box for indoor and outdoor installation.
Manual lever, pneumatic or electric actuated versions available.
Ideal for fire sprinkler and suppression systems needing status monitoring.
| Parameter | Specification |
|---|---|
| Design | Concentric / Double Offset, with Limit Switch Box |
| Body Material | Ductile Iron GGG50 / Carbon Steel WCB / Stainless Steel CF8 (304) / CF8M (316) |
| Seat Material | EPDM / NBR / PTFE |
| Limit Switch | Mechanical or Inductive Proximity, IP67, ISO 5211 Mounting |
| Size Range | DN50 – DN2000 (2" – 80") |
| Pressure Rating | PN10 / PN16 (higher on request) |
| Temperature | -20°C to +120°C (EPDM) |
| End Connection | Flanged / Wafer / Lug |
| Operation | Manual / Pneumatic / Electric |
| Certification | ISO 9001:2015, SGS Material Test (MTC per batch) |
Fire sprinkler and suppression systems with remote valve status monitoring.
Building management systems needing valve position feedback.
Remote monitoring of isolation valves in treatment plants.
Any process where operators need remote valve open/close confirmation.
A signal butterfly valve has a limit switch box fitted to the valve or actuator that provides open/close position feedback to a PLC, DCS or building management system.
Signal butterfly valves are widely used in fire protection systems, HVAC automation, water treatment and any application where remote valve position monitoring is required.
Mechanical or proximity limit switches provide dry contact open/close signals, which can be wired to PLC/DCS inputs for remote monitoring and status indication.
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