| Customization: | Available |
|---|---|
| Sprinkler Installation: | Upright |
| Sprinkler Head Type: | Closed |
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NX3 Standard Response Upright a Sprinklers (Ref. Figure A) are automatic sprinklers of the frangible bulb type. They are "standard 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 Sprinklers all produce a hemispherical water distribution pattern below the deflector.
| Model | Upright Sprinkler |
| Type | NX3 |
| Nominal K-Factor | 8.0(U.S.) / 115 (metric) |
| Bulb Nominal Dia. | 5mm glass bulb |
| Response | Standard Response |
| Finish | Chrome Plated |
| Transport package | Cartons |
| Origin | China |
| Temp. | 68ºC |
| Thread Size | 1/2"BSPT |
| Cert. | CCC/ISO |
| Trademark | TUNA |
| HS CODE | 8424909090 |
Nanjing Tuna Fire Protection Co., Ltd, as a subsidiary of Nanjing Fire Protection Technology Co. Ltd, is responsible for the design and manufacture of automatic sprinkler systems, hydrant water supply systems, foam fire extinguishing systems, high (medium) pressure water mist systems, and fire extinguishers. Founded in 1988, "TUNA" as a famous trademark in Jiangsu Province and Nanjing, its water system products: sprinkler heads, fire extinguishers, valve components and other classic products have a history of more than 30 years.
After Nanjing Fire became the first sprinkler manufacturer in China to obtain UL approval in 2004, in 2019, the company developed new sprinkler products according to UL and FM requirements, and became a sprinkler manufacturer with UL/FM double certification. Looking forward to the future, Nanjing TUNA will build a single safety firewall for the society and customers with reliable products and high-quality services, and contribute to the progress of the national fire protection industry.
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