MODEL M FRAME STYLE
SPRAY NOZZLES
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
Form No. F_011594 21.08.04 Rev 21.2
Page 4 of 5
DESIGN CRITERIA
(Also refer to the Approval Chart on page 3.)
cULus Listing Requirements:
Frame Style Spray Nozzles are small, directional spray nozzles for use on water spray systems. Refer to the installation standards, such as NFPA 13, for
minimum water supply requirements, nozzle pressure, and installation guidelines.
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Viking frame style spray nozzles
are to be installed in accordance with the latest edition of Viking technical data, the appropriate standards of NFPA, FM
Global, LPCB, APSAD, VdS or other similar organizations, and also with the provisions of governmental codes, ordinances,
and standards, whenever applicable.
The Approval Chart on page 3 shows listings and approvals of Frame Style Spray Nozzles for use on water spray systems and
water based deluge systems. The chart shows listings and approvals available at the time of printing. Other approvals are in
process. Check with the manufacturer for any additional approvals.
A.
Spray nozzles are to be installed in accordance with the latest edition of Viking technical data, the latest published
standards of NFPA, FM Global, LPCB, APSAD, VdS or other similar organizations, and also with the provisions of
governmental codes, ordinances, and standards whenever applicable. The use of Frame Style Spray Nozzles may be
limited due to occupancy and hazard. Refer to the Authority Having Jurisdiction prior to installation.
B. Frame Style Spray Nozzles are installed on fixed fire protection systems, such as deluge systems, where total flooding is
required.
C. Handle sprinklers and spray nozzles with care. They must be stored in a cool, dry place in their original shipping container.
Never install a sprinkler or spray nozzle that has been dropped, damaged, or exposed to temperatures exceeding the maximum
ambient temperature allowed (refer to Table 1 on page 2).
D. Never install any glass-bulb sprinkler if the bulb is cracked or if there is a loss of liquid from the bulb. A small air bubble should
be present in the glass bulb. Any sprinkler with a loss of liquid from the glass bulb or damage to the fusible element should be
destroyed immediately.
E. Corrosion-resistant sprinklers and spray nozzles must be installed when subject to corrosive atmospheres. When installing
corrosion resistant nozzles, take care not to damage the corrosion resistant coating.
F. Spray nozzles must be installed after the piping is in place to prevent mechanical damage.
G. Sprinklers and spray nozzles must be protected from mechanical damage. Where open sprinklers are used, care must be taken
to prevent foreign materials from entering the orifice. Foreign materials may accumulate and restrict or plug the waterway and
may prevent proper operation of the spray nozzle.
H. Before installing, be sure to have the appropriate sprinkler model and style, with the correct K-Factor, temperature rating, and
response characteristics. When installing automatic (closed) Frame Style Spray Nozzles, proceed to paragraphs I, J, and K below.
1.
When installing open Frame Style Spray Nozzles:
Hydrostatic testing must be completed prior to spray nozzle installation. Install
plugs in place of spray nozzles for test purposes only. In areas where leakage during testing must be prevented, system piping
may be air tested prior to testing with water. Refer to the appropriate installation standard and the Authority Having Jurisdiction.
When hydrostatic testing is complete, verify that all test plugs have been removed. Proceed to paragraphs I and K below.
Omit paragraph J.
I.
For Automatic (closed) and Open Frame Style Spray Nozzles:
Before installing, be sure to have the appropriate model and
style, with the correct orifice size, temperature rating, and response characteristics. Frame Style Spray Nozzle deflectors are
identified with the U.S. K-Factor, spray angle, and temperature rating.
1. Apply a small amount of pipe-joint compound or tape to the external threads of the spray nozzle only, taking care not to allow
a build-up of compound inside the inlet.
2. Install the nozzle on the fixed piping, using the special sprinkler/spray nozzle wrench only. Take care not to over-tighten or
damage the spray nozzle operating parts. DO NOT use the deflector to start or thread the unit into a fitting.
J.
For automatic (closed) spray nozzle installations:
After installation, the entire fixed pipe system must be tested. The test
must be conducted to comply with the installation standards. Make sure the spray nozzle has been properly tightened. If
a thread leak occurs, normally the unit must be removed, new pipe-joint compound or tape applied, and then reinstalled.
This is due to the fact that when the joint seal is damaged, the sealing compound or tape is washed out of the joint.
In areas where leakage during testing must be prevented, system piping may be air tested prior to testing with water. Refer to
the appropriate installation standard and the Authority Having Jurisdiction.
