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MV & LV SERIES ENGINEERED DRY CHEMICAL FIRE EXTINGUISHING SYSTEM
OPERATION, DESIGN, & SERVICE MANUAL
REV C
Document # DOC324
Issued: April 26, 2018
Revised: March 22, 2022
UL FILE # EX27541
Section 3 System Design
Figure 3.2.2 Nozzle Placement for
Tankside Local Application
3.2.2 Local Application - Tankside
A tankside local application system is used for applying agent across a hazard area from the side of the
protected area. Typical applications include, but are not limited to, dip tanks, quench tanks, and solvent
tanks where overhead obstructions are present.
3.2.2.1 Nozzle Orientation
e Tankside Nozzle (P/N 16170) is used for
Local Application, Tankside coverage. Each
nozzle will protect a hazard area of 27 ft² (2.5
m²), with a 6 ft (1829 mm) maximum side. e
distance from the nozzle across the hazard must
not exceed 4.5 feet (1372 mm). e tip of the
nozzle must be at least 1/2 in (13 mm) below
the lip of the pan, located at least 5 in (127 mm)
above the highest liquid surface. e nozzle slit
is oriented horizontally, so that it is aimed at the
opposite side of the tank.
3.2.2.2 Temperature Limitations
e operating temperature range for the system components used in Tankside Local Applications is -20°F
to 120°F (-29°C to 49°C).
3.2.2.3 Agent Application
Each Tankside Nozzle must discharge a minimum of 1.5 lbs (0.68 kg) of dry chemical agent per second
(a minimum flow rate of 1.5 lb/s (0.68 kg/s)). e Janus Design Suite® Flow Calculation Software will
determine the amount of dry chemical agent required to meet these flow rates based on the hazard
dimensions and number of nozzles required.
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