The TYCO Style 20 is a two-piece recessed escutcheon for recessed installation of specified pendent and horizontal sidewall sprinklers in finished ceilings and walls, for 1/2″ NPT with 1/2″ (12.7 mm) total adjustment from the flush position. The adjustment reduces the accuracy to which drops to the sprinklers must be cut, while giving a decorative finish. See the complete guide to sprinkler systems in Saudi Arabia.
In short
- Style: Style 20 — 1/2″ NPT.
- Total adjustment from flush: 1/2″ (12.7 mm).
- Two pieces: a mounting plate fitted with the sprinkler, and a closure fitted after the ceiling.
- Matching paint cap: Z-392 (ordered separately).
- Use only with sprinklers whose datasheet specifies this style.
How the recessed escutcheon works
The mounting plate goes over the sprinkler threads before the sprinkler is tightened into its fitting. After the ceiling or final finish is in place, the closure is pushed over the mounting plate until its flange touches the ceiling, covering the hole and taking up the depth within the adjustment range.
The datasheet warns that a missing escutcheon over the clearance hole can delay sprinkler operation in a fire, so the hole must never be left open.
Models in the datasheet
| Style | Thread | Total adjustment |
|---|---|---|
| Style 10 | 1/2″ NPT | 3/4″ (19.1 mm) |
| Style 15 | 1/2″ NPT | 5/8″ (15.9 mm) |
| Style 20 — this model | 1/2″ NPT | 1/2″ (12.7 mm) |
| Style 30 | 3/4″ NPT | 1/2″ (12.7 mm) |
| Style 40 | 3/4″ NPT | 3/4″ (19.1 mm) |
| Style 50 | 1/2″ NPT | 3/8″ (9.5 mm) |
| Style 70 | 3/8″ NPT | 3/4″ (19.1 mm) |
Links to the other models are in the “Similar models” table below.
Technical data
| Item | Value |
|---|---|
| Style | Style 20 |
| Thread | 1/2″ NPT |
| Total adjustment | 1/2″ (12.7 mm) |
| Finishes | Brass plated, white (RAL9010 / RAL9003), jet black, chrome, grey aluminum or plain unpolished, per style |
| Paint cap | Z-392 |
| Approvals | As part of the listing of the sprinkler that specifies it |
The critical point: the style is part of the sprinkler listing
Each recessed sprinkler is listed with specific styles named in its datasheet. Using an unlisted style takes the installation outside the listing. Never compensate for adjustment by under- or over-tightening the sprinkler.
Installation steps
- Confirm Style 20 is the style specified in the sprinkler datasheet.
- Fit the mounting plate over the sprinkler threads, then hand-tighten the sprinkler with thread sealant.
- Finish tightening with the sprinkler’s specified (recessed) wrench and torque.
- Protect the sprinkler during finishing with the Z-392 paint cap, removed before service.
- After the ceiling or final finish, push the closure over the mounting plate until its flange touches the surface.
Common mistakes
- Using a style not specified in the sprinkler datasheet.
- Leaving the hole without the closure.
- Painting the escutcheon or sprinkler on site, or forgetting to remove the paint cap.
Inspection and maintenance
Escutcheons are checked during the visual sprinkler inspection for presence and condition; any impairment is corrected immediately per NFPA 25.
Files and ordering
TYCO datasheet TFP770 and the available approval certificates are in the files section of this page. When ordering, state the Style 20 style, finish and, if needed, the paint cap. 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 does 1/2″ (12.7 mm) total adjustment mean?
It is the range of sprinkler depth available from the flush position, absorbing small differences in drop length without re-cutting.
Can I use this style with any sprinkler?
No. Only with sprinklers whose datasheet specifies it.
What is the paint cap for?
It protects the sprinkler while the ceiling or wall is painted and finished; ordered separately and removed before service.
References
- TYCO TFP770 — 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.
