The NX003/NX004 Standard/Quick Response Upright are automatic sprinklers of the frangible bulb type. They are "standard/quick response standard orifice spray sprinkler" intended for use in fire sprinkler systems designed in accordance with the standard installation rules recognized by the applicable Listing or Approval agency (e. G., UL Listing is based on NFPA 13 requirements). The Upright, Pendent Sprinklers all produce a hemispherical water distribution pattern below the deflector.
| Model & Sprinkler I. D. No. |
NX003 |
NX004 |
| Style |
Upright |
| Bulb Nominal Dia. & Response |
Ø 5mm, Standard Response |
Ø 3mm, Quick Response |
| Thread Size [Optional] |
NPT1/2 or R1/2 |
| Nominal Orifice Size |
1/2 Inch |
| Nominal K-Factor |
5.6 (U. S. )/80 (metric) |
| Max. Working Pressure |
175 psig/1.2 MPa (12 bar) |
| Factory Hydrostatic Test |
100% @ 500psig (3.4 MPa) |
| Min. Operating Pressure |
7 psig/0.048 MPa (0.48 bar) |
| Sprinkler Finish [Optional] |
Natural Brass or Chrome Plated or White Color Coated |
| Escutcheon Finish |
Chrome Plated or Color Coated In Any Color |
| Listings and Approvals |
UL(United States)/ULC(Canada) |
AVAILABLE TEMPERATURE RATING
| Temp. Classification |
Ordinary |
Ordinary |
Intermediate |
Intermediate |
| Nominal Temp. Rating |
135° F/57° C |
155° F/68° C |
175° F/79° C |
200° F/93° C |
| Max. Ambient Temp. Allowed 5 |
115° F/46° C |
135° F/57° C |
155° F/68° C |
180° F/82° C |
| Max. Recommended Ambient Temp. 6 |
100° F/38° C |
100° F/38° C |
150° F/65° C |
150° F/65° C |
| Glass Bulb Color 7 |
Orange |
Red |
Yellow |
Green |
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