The TYCO TY7126 is the upright model of the ESFR-17 series, with a K 16.8 discharge coefficient and 3/4″ NPT thread, early suppression, fast response (esfr) and esfr storage sprinkler, operated by a fusible link. It is designed for ceiling-only protection of high-piled storage without in-rack sprinklers, for most common materials, cartoned plastics and some tire and roll paper arrangements. Installed above the pipe with the deflector facing up. For where the sprinkler sits in the whole system, see the complete guide to sprinkler systems in Saudi Arabia.
In short
- Model (SIN): TY7126 — Upright.
- Discharge coefficient K 16.8, 3/4″ NPT connection.
- Fusible link, early suppression, fast response (esfr).
- Temperature ratings in the datasheet: 74 / 100 °C.
- Maximum working pressure: 175 psi (12.1 bar).
- Series approvals: FM (per datasheet). The approval of each model, finish and rating is in the approvals table of datasheet TFP316.
How this sprinkler works
The fusible link is made of two halves joined by a thin layer of solder. When the rated temperature is reached the solder melts, the halves separate and the sprinkler opens to flow water.
Installed above the pipe with the deflector facing up. An ESFR sprinkler works in suppression mode: a large volume of water with strong droplets early on, to suppress the fire rather than only control it.
Models in the series
| SIN | Orientation | K-factor | Thread |
|---|---|---|---|
| TY7126 — this model | Upright | 16.8 | 3/4″ NPT |
Links to the other models are in the “Similar models” table below. The choice of model comes from the hydraulic calculation, hazard classification and installation method in the project design.
Application notes
- An Early Suppression, Fast Response (ESFR) sprinkler working in suppression mode. NFPA and FM Global guidelines may differ, so the applicable standard must be used. Minimum clearance to commodity is 36 in.
Technical data
| Item | Value |
|---|---|
| Model (SIN) | TY7126 |
| Orientation | Upright |
| Discharge coefficient | K 16.8 gpm/psi½ (241.9 L/min/bar½) |
| Thread | 3/4″ NPT |
| Element and response | Fusible link — Early Suppression, Fast Response (ESFR) |
| Coverage | ESFR storage sprinkler |
| Temperature ratings | 74 / 100 °C |
| Maximum working pressure | 175 psi (12.1 bar) |
| Installation torque | 10 – 20 lb-ft (13.4 – 26.8 N·m) |
| Wrench | W-Type 21 |
| Approvals | FM (per datasheet) |
| Datasheet | TYCO TFP316 |
The critical point: do not touch the link
Handle the sprinkler by the frame arms only, never press on the link assembly, and tighten with the W-Type 21 wrench fully seated on the wrench flats at 10 – 20 lb-ft.
Installation steps
- Install the sprinkler in its correct orientation (Upright) as shown in the datasheet — never reversed.
- Apply pipe-thread sealant to the threads, then hand-tighten the sprinkler.
- Finish with the specified wrench (W-Type 21) within 10 – 20 lb-ft (13.4 – 26.8 N·m). Higher torque can distort the inlet and cause leakage.
Common mistakes
- Installing a sprinkler that was dropped, struck or slipped by the wrench. The datasheet requires any such sprinkler to be replaced.
- Painting or coating sprinklers on site. Sprinklers must not be altered after leaving the factory; altered sprinklers are replaced.
- Hanging objects from sprinklers, or cleaning them with anything other than a gentle feather duster.
Maintenance
Sprinklers that leak or show visible corrosion must be replaced, as must sprinklers exposed to corrosive products of combustion that cannot be fully cleaned. The owner is responsible for inspection, testing and maintenance to NFPA 25 and the authority having jurisdiction, preferably by a qualified inspection service. Before closing a main control valve for maintenance, obtain permission from the proper authorities and notify everyone affected.
Files and ordering
TYCO datasheet TFP316 and the available approval certificates are in the files section of this page. When ordering, state the model TY7126, temperature rating and finish. The datasheet lists the part numbers (P/N) for each combination.
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 does TY7126 mean?
It is TYCO’s Sprinkler Identification Number (SIN). It identifies the exact model — orientation, K-factor and thread. The sprinkler is ordered by this number together with temperature rating and finish.
How do I choose the temperature rating?
From the highest expected ceiling temperature and the rating classes in the project’s governing standard, within the ratings available for this model in the datasheet.
Do all models in the series carry the same approvals?
Not always. The approvals table in datasheet TFP316 gives each model’s approvals by rating and finish, so check it when the project requires a specific approval.
Does the warehouse need in-rack sprinklers?
ESFR sprinklers are for ceiling-only protection in the applications given in the datasheet and governing standard (NFPA or FM Global), removing the need for in-rack sprinklers within those conditions.
References
- TYCO TFP316 — Series datasheet (attached)
- NFPA 13 — Standard for the Installation of Sprinkler Systems
- NFPA 25 — Inspection, Testing and Maintenance of Water-Based Fire Protection Systems
- TYCO TFP700 — Installer warning for handling and installing sprinklers
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.
