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 1 of 5
1. DESCRIPTION
Viking Frame Style Spray Nozzles are small, directional spray
nozzles for use on water spray systems. They are thermosensitive
glass bulb style nozzles, however they may be ordered OPEN
(glass bulb and pip cap assembly removed) for use on deluge
systems.
These Frame Style Spray Nozzles are available in various
finishes, temperature ratings, orifice sizes, and spray pattern
discharge angles to meet design requirements. When spraying,
the nozzles discharge a cone-shaped spray pattern. The deflector
determines the included angle of spray pattern discharge. A
special ring provides uniform distribution throughout the spray
pattern.
Other features include the small frame, which allows proper nozzle
positioning even in congested areas, and the nominal 3 mm glass
bulb contained entirely inside the frame for protection from most
mechanical damage. The glass bulb operating elements are
resistant to more corrosive atmospheres than metal elements.
The special PTFE coating has been investigated for installation in
corrosive atmospheres and is cULus listed as corrosion resistant
as indicated in the Approval Chart.
2. LISTINGS AND APPROVALS
cULus Listed:
Category VGYZ
NYC Approved:
MEA 89-92-E, Volume 29
NOTE:
International approval certificates are available upon request. Refer to the Approval Chart and Design Criteria for cULus
listing requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Minimum Operating Pressure: 7 PSI (0.5 bar)
Rated to 175 PSI (12 bar) water working pressure.
Factory tested hydrostatically to 500 PSI (34.5 bar)
Frame Style Spray Nozzles are available in various orifice sizes. Refer to the Approval Chart for more information.
The spray nozzle deflector is identified with the U.S. K-Factor, spray angle, and temperature rating.
Thread size: 1/2” (15 mm) NPT
Nominal K-Factors: Refer to the Approval Chart
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Overall Length: Refer to the Approval Chart
Spray Nozzle Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Copper UNS-C19500
Ring: Phosphor Bronze UNS-C51000
Bulb: Glass, nominal 3 mm diameter
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape
Screw: Brass UNS-C36000
Bushing (Small Orifice Nozzles): Brass UNS-C36000
Pip Cap: Brass UNS-C31600
For PTFE Coated Nozzles:
Belleville Spring-Exposed, Screw-Nickel Plated (painted black for appearance only), Pip Cap-PTFE Coated
Ordering Information:
(Also refer to the current Viking price list.)
Replaces Form No. F_011594 Rev 21.1
(Reinstated bushed orifice footnote)
Nozzles are shown with deflectors in the upright position for clarity.
May be installed in any position to meet design requirements.
60°
90°
120°
150°
