ESFR DRY PENDENT SPRINKLER
VK512 K25.2 (GROOVED)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Page 4 of 8
Form No. F_071221 Rev 001 12.10.2021
INSTALLATION TIP:
Prior to final installation, temporarily install all components described in the procedure below to verify the correct measurements
have been achieved.
Procedure:
1. Inspect the sprinkler assembly for damage.
2. Install all piping before installing the sprinkler.
3.
4. Verify the protective cap is installed and insert the sprinkler into the pre-drilled hole.
5. Lubricate or seal the gaskets on the grroved coupling as necessary.
6. Secure the sprinkler in place with a suitable grooved coupling.
7. Clean the contact surfaces for the insulating boot.
NOTE: When installing insulating boots, pilot holes are required in metallic ceilings.
8. Carefully pull apart the rubber rings (A) to install onto the barrel.
9. Place the 2 halves of the seal casing (B) on either side of the barrel and hold in place, then install and tighten the screws (C).
NOTICE: Specific situations and conditions may exist that require alternative sealing methods. A few of these methods
are shown in Figure 3. Additional sealing methods may also be used; however, the material(s) used must not break down,
drip, over-spray, or otherwise interfere with or impede the operation of the sprinkler—especially during fire conditions.
A
Coupling not shown
B
B
C
Figure 2: Sprinkler Installation
Note: The top of barrel is marked
to indicate the orientation of
sprinkler frame arms.
(Not part of a requirement)
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