(2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Pendent Spray 1/2” NPT 155°F (68°C) K=5.6 K80 Standard Response for Automatic Fire Sprinkler System Chrome NX025 2 Pack TUNA

(2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Pendent Spray 1/2” NPT 155°F (68°C) K=5.6 K80 Standard Response for Automatic Fire Sprinkler System Chrome

Pattern Name:NX025 2 Pack During a fire conditions, the thermal-sensitive
liquid in the glass bulb expands, causing the bulb to shatter, releasing the
button and spring seal assembly. Water flowing through the sprinkler orifice
strikes the sprinkler deflector, forming a uniform spray pattern to extinguish
or control the fire.Temperature Rating: 155°F (68°C)Discharge Coefficient:
K=5.6(U.S) /80(Metric) Nominal Orifice Size:1/2″(15mm) Maximum Working
Pressure:175psi(12bar) Min. Operating Pressure: 7psi (0.48bar) Factory
Hydrostatic Test: 100%@ 500psi (34.5bar) NPT: National Pipe Tapered is common
in plumbing and some industrial uses. Sometimes referred to as pipe thread
because PVC pipe and schedule 40 pipe are typically threaded in NPT. As its
name implies this is a tapered thread so that the outside diameter of the male
(ODM) gets smaller towards the end of the fitting and the inside diameter of
the female narrows with depth. As the two fittings are threaded together the
opposite tapers force thread friction and makes the seal without the use of a
gasket.

Product Features

• FM Approved and UL / CUL listed EX6430. 1/2 ” NPT (National National Pipe Thread) American thread fire sprinkler heads
• Underwriter Laboratories Listed, UL(United States) and ULC(Canada) Listed
• Nominal 5.6 K-Factor fire sprinkler heads, Dia5mm Glass Bulb Standard Response 155F 68C
• Max working pressure 175psig /1.2Mpa(12 bar);Factory Hydrostatic Test 100%@ 500psig (3.4Mpa)
• Automatic fire sprinklers of the frangible bulb type