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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
Sample Lv Series Single Cylinder Equipment Order List
Quantity P/N Description
1 25148-650 Cylinder Assembly, Dry Chemical, 1000 lb (includes 650 lbs of agent)
1 18537 Bracket Assembly, Cylinder, 30”
1 20722 Electric Valve Actuator w/ Supervision
1 17001 Manual Valve Actuator
1 25804 Gauge Assembly, Pressure, Dry Chemical
1 22946 Switch Assembly, Low-Pressure Supervisory, PSI
1 18554 Coupling, Grooved, 3” (80 mm)
1 18550 Elbow, Grooved, 3” (80 mm)
As Required Various Discharge Nozzles
1 97428 Switch, Discharge Pressure
1 97735 Sign, Warning, Exit, Dry Chemical
1 97733 Sign, Warning, Entrance, Dry Chemical
Sample Lv Series Three Cylinder Equipment Order List (Manifolded)
Quantity P/N Description
3 25148-450 Cylinder Assembly, Dry Chemical, 1000 lb (includes 450 lbs of agent)
3 18537 Bracket Assembly, Cylinder, 30”
1 20722 Electric Valve Actuator w/ Supervision
1 17001 Manual Valve Actuator
3 25804 Gauge Assembly, Pressure, Dry Chemical
3 22946 Switch Assembly, Low-Pressure Supervisory, PSI
3 18554 Coupling, Grooved, 3” (80 mm)
3 18550 Elbow, Grooved, 3” (80 mm)
3 17019 Pneumatic Valve Actuator
2 18651 Hose, Flex, 3/16”, 1/4” (8 mm) JIC Female - 40” (1016 mm) (cylinder to cylinder)
2 18622
Tee, 1/4” JIC Male x 1/4” MNPT (8 mm x 8 mm), Brass
Pilot Actuation Mid Line Tee
1 18625
Adapter, 1/4” MNPT x 1/4” JIC Male (8 mm x 8 mm), Brass
Male NPT Adapter
1 18611
Tee, 1/4” FNPT x 1/4” MNPT (8 mm x 8 mm), Brass
Pilot Actuation End Line Tee
1 10173 Vent Check
As Required Various Discharge Nozzles
1 97428 Switch, Discharge Pressure
3 18538 Valve, Check, 3” Grooved (80 mm)
1 97735 Sign, Warning, Exit, Dry Chemical
1 97733 Sign, Warning, Entrance, Dry Chemical
1 97643 Kit, Pneumatic Actuation/Bracket, for Nitrogen Pilot Line, Dry Chemical
1 26311 Cylinder, Remote Pilot, Nitrogen, 500 psi
As Required Various Flex Hose (remote actuator to cylinder)
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