VK3522 QUICK RESPONSE
PENDENT SPRINKLER (K8.0)
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: [email protected]
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Page 6 of 6
Form No. F_021416 Rev 22.1 March 3, 2022
Models E-1 or NP-1
Recessed Escutcheon
Ceiling opening size:
Minimum: 2-5/16” (59 mm)
Maximum: 2-1/2” (64 mm)
2-1/8” (54 mm)
2-1/8” (54 mm)
Models E-2, E-3, NP-2 or
NP-3 Thread-On Recessed
Escutcheon
(E-3 and NP-3 Outer rings
have larger diameters)
Max. 1-7/16”
(37 mm)
Max. 1-3/4”
(44 mm)
Min. 13/16”
(21 mm)
Min. 15/16”
(24 mm)
Ceiling opening size:
Minimum: 2-5/16” (59 mm)
Maximum: 2-1/2” (64 mm)
1-7/16”
(37 mm)
Standard Surface-Mounted Escutcheon
Figure 6: Installation Dimensions with Viking Escutcheons
1. Install the escutcheon onto the
sprinkler threads.
Figure 5: Installation (with Straight Wrench)
2. Carefully slide the wrench** sideways
around the protective cap then push
upwards to engage with the sprinkler
wrench flats.
3. Install the sprinkler and escutcheon
assembly into the pipe fitting. Be sure
the escutcheon contacts the surface
of the finished ceiling.
Replaces Form No. F_021416 Rev 21.3
(Added LPCB and VdS details)
