Top Shelf Sidewall Fire Sprinkler Head Two Pack Fm Approved Ul Listed Cul Verified Half Inch Npt Pipe Connection For Zero Drama Residential Or Commercial Sprinkler Setup
✔️ 1/2 Inch NPT Brass Frame 155F Rating FM UL Certified
Semiwall automatic fire sprinkler heads designed for residential, commercial, and industrial installation or replacement projects. These chrome finished units connect directly to half inch npt threaded piping and deliver standardized coverage across offices, hotels, warehouses, and retail locations needing compliant light hazard suppression. Pack contains two sealed units ready for contractor grade builds.
✅ 155 Degree (68 Celsius) Standard Response Glass Bulb✅ 1/2 Inch (15 Mm) Nominal Orifice With Five Point Six K Factor
✅ 175 Psi (12 Bar) Max Working Pressure With 500 Psi Test Range
✅ Brass And Bronze Alloy Construction Handles Indoor Water Lines
✅ Teflon Thread Tape Seals The One Half Inch Connection Tight
💡 How does a standard response automatic sprinkler head trigger water flow during an emergency fire event?
When ambient heat warms the surrounding air, that glycerin filled glass sensor expands until the thin shell breaks.
- Rapid temperature rises snap the frangible capsule while releasing the internal brass sealing pin
- System pressure pushes fluid straight through the calibrated orifice near the bronze deflector
- Hydraulic split turns the concentrated stream into a steady hemispherical wash that covers the room quick
Early localized dousing keeps flame spread tight and is pretty handy before smoke fills the ductwork
✝️