The TYCO TOSY supervises the position of OS&Y gate valves electrically. It mounts to the valve with a bracket and carriage bolts and signals the panel if the valve starts to close or the switch is removed. Available for APAC and EMEA. See the guide to types of fire fighting valves.
In short
- Normal condition: valve fully open with the trip rod in the valve stem groove.
- Contact rating: 10 A 125/250 VAC, 2.5 A 30 VDC.
- IP67, suitable indoors and outdoors, all components corrosion-resistant finished.
- Operating temperature -40°C to +60°C.
- Tamper-resistant cover screw.
How the switch works
Closing the valve lifts the trip rod out of the stem groove and transfers the contacts. Removing the switch lets the spring pull the rod the other way, which also transfers the contacts, so supervision cannot be defeated by removal.
Final adjustment is complete when, with the valve open, there is no continuity between COM and NO and the plungers are depressed by the actuator.
Related items
- The TYCO TJR gate valve (TFP1541).
Technical data
| Item | Value |
|---|---|
| Type | OS&Y valve supervisory switch |
| Contact ratings | 10 A 125/250 VAC · 2.5 A 30 VDC |
| IP rating | IP67 |
| Operating temperature | -40 to +60 °C |
| Material | Die-cast cover and base, corrosion-resistant finish |
| Approvals | UL · cUL · FM · CE |
The critical point: trip rod length
Set the trip rod to extend past the valve screw without touching the bracket clamp bar, and avoid a pinch point between handwheel and switch. A rod too long or too short gives incorrect supervision.
Installation steps
- Put the valve in the fully open position.
- Choose a location with clearance to install and remove the switch, placing it with its bracket near the handwheel.
- Adjust the trip rod length per the datasheet and lock it with its locking screw.
- Fine-adjust until there is no continuity between COM and NO with the valve open, then test by partly closing the valve.
Common mistakes
- Installing with the valve not fully open.
- A trip rod length that touches the bracket.
- Leaving a pinch point between handwheel and switch.
Inspection and maintenance
Before closing a main control valve for maintenance, obtain permission from the proper authorities and notify everyone affected. The owner is responsible for inspection, testing and maintenance to NFPA 25 and the authority having jurisdiction; any impairment must be corrected immediately.
Test supervision periodically by moving the valve from open and confirming the panel signal.
Files and ordering
TYCO datasheet TFP2113 and the available approval certificates are in the files section of this page. When ordering, state the OS&Y valve size to be supervised. The datasheet lists the part numbers (P/N).
How to order
Use the “Build your order” section on this page: add every model and quantity, then send the whole order by email or WhatsApp. It reaches us as a tidy PDF request sheet and we contact you with the quotation.
FAQ
What happens if the switch is removed?
The contacts transfer and a supervisory signal reaches the panel, so removal cannot defeat supervision.
Is it suitable outdoors?
Yes, IP67 with corrosion-resistant finishes.
Which valves is it for?
OS&Y gate valves in the size ranges given in the datasheet.
References
- TYCO TFP2113 — Datasheet (attached)
- NFPA 25 — Inspection, Testing and Maintenance of Water-Based Fire Protection Systems
This page is general information to help with selection and ordering, taken from the attached TYCO datasheet. Final design is set by the project’s approved designer; the project specification, the consultant’s drawings and the latest datasheet revision govern.
