The TYCO Model S2 is a sprinkler shield. A shield protects a pendent sprinkler’s element from the spray of higher sprinklers; it is used on pendents not exposed to mechanical damage, forming an intermediate-level sprinkler. Compatible with: Specified TY-B and TY-FRB pendents, such as TY3251 / TY4251 / TY325 / TY323 / TY3231 / TY4231. See the complete guide to sprinkler systems in Saudi Arabia.
In short
- Type: Shield.
- Compatibility: Specified TY-B and TY-FRB pendents, such as TY3251 / TY4251 / TY325 / TY323 / TY3231 / TY4231.
- Material: carbon steel with EPDM O-rings.
- Finish: Plated steel only, with one O-ring.
- Approval for each compatible sprinkler is in Table A of the datasheet (UL / FM / C-UL).
What it does
A shield protects a pendent sprinkler’s element from the spray of higher sprinklers; it is used on pendents not exposed to mechanical damage, forming an intermediate-level sprinkler.
Fitted to the sprinkler it forms a listed assembly per Table A: each sprinkler has a specific guard or shield, and a specific mounting location (thread relief or wrench area).
Models in the datasheet
| Model | Type |
|---|---|
| G1 | Guard |
| G2 | Guard |
| G4 | Guard |
| G5 | Guard |
| G1/S1 | Guard with shield |
| G4/S3 | Guard with shield |
| WSG-2 | Guard with shield |
| S2 — this model | Shield |
| S4 | Shield |
| S5 | Shield |
| WS-2 | Shield |
Links to the other models are in the “Similar models” table below.
Technical data
| Item | Value |
|---|---|
| Model | S2 |
| Type | Shield |
| Compatibility | Specified TY-B and TY-FRB pendents, such as TY3251 / TY4251 / TY325 / TY323 / TY3231 / TY4231 |
| Material | Carbon steel, EPDM O-rings |
| Finish | Plated steel only, with one O-ring |
| Approvals | UL / FM / C-UL per sprinkler in Table A |
The critical point: compatibility with the sprinkler
Fit the guard or shield only to the sprinklers listed for it in Table A, with the specified mounting. Any unlisted combination is not approved.
Installation steps
- Confirm in Table A that the sprinkler is compatible with S2 and check the mounting location.
- Install the sprinkler first with its specified wrench and torque.
- Fit the S2 to the sprinkler as shown in the datasheet without pressing on the element or deflector.
- Check the guard or shield is secure and does not obstruct the spray pattern.
Common mistakes
- Fitting the guard to a sprinkler not listed for it in Table A.
- Pressing on the bulb or link during fitting.
- Using a shield alone where the upright is exposed to impact, instead of a guard with shield.
Inspection and maintenance
Guards and shields need no scheduled maintenance, but their correct installation should be verified during the annual visual sprinkler inspection, per the datasheet.
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.
Files and ordering
TYCO datasheet TFP780 and the available approval certificates are in the files section of this page. When ordering, state the model S2, finish and, where required, the sprinkler thread size (S2 shield). 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 is the difference between a guard and a shield?
A guard protects the sprinkler from impact; a shield protects its element from higher-level spray. A guard-with-shield assembly does both.
Does the shield replace an intermediate-level sprinkler?
Fitting the shield or guard-with-shield to a compatible sprinkler forms a listed intermediate-level sprinkler, per the datasheet.
Does it need maintenance?
No scheduled maintenance; only a check of the installation during the annual visual inspection.
References
- TYCO TFP780 — 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.
