The Viking VK634 is a Mirage quick-response, extended coverage concealed pendent fire sprinkler. It carries an 8.0 K-factor. Specifically, this version has a brass body and a 155°F (68°C) temperature rating. As a result, it fits ceilings where a clean, hidden look matters. The matching part number is 14535AB.
Concealed Design
First, the sprinkler installs above the ceiling line and hides behind a cover plate. Therefore, only a flat plate shows on a finished ceiling. In addition, the cover plate drops away under heat to expose the sprinkler. The head then operates as designed.
Performance and Ratings
The glass-bulb element releases water at 155°F (68°C). Furthermore, the 8.0 K-factor and extended coverage spacing let one head protect a wider area. The sprinkler connects through standard 3/4-inch NPT threads. Its quick-response bulb reacts fast to a developing fire.
Key Features
- Mirage quick-response, extended coverage concealed pendent sprinkler
- 8.0 K-factor
- 155°F (68°C) temperature rating, glass bulb
- Brass body; part number 14535AB
- 3/4-inch NPT thread connection
- Concealed installation with drop-away cover plate
- Clean, low-profile finished-ceiling appearance
Order the Viking VK634 or Get Application Help
Since 2002, Life Safety Consultants has supplied genuine Viking fire sprinklers. To order the Viking VK634 or confirm compatibility, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.4 lbs |
|---|---|
| Dimensions | 2 × 2.5 × 3.5 in |
| Condition | New |
| Manufacturers | Life Safety |
| Part Type | Replacement Part |







