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Janus Mv Series User Manual
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Page: 27
MV
& L
V SERIES
ENGINEERED DR
Y CHEMICAL
FIRE EXTINGUISHING
SYSTEM
OPERA
TION, DESIGN, & SERVICE MANUAL
REV C
Document # DOC324
Issued:
April 26, 2018
Revised: March 22, 2022
UL FILE # EX27541
Section 2 System Components and Description
Figure 2.5.3b T
ypical Cylinder Spacing for 600 lb Cylinders
29”
(737 mm)
29”
(737 mm)
29”
(737 mm)
40
42
Table of Contents
Table of Contents
3
General Information
15
Listings and Approvals
16
Extinguishing Agent
17
Safety Considerations
17
System Components and Description
19
Cylinder Assembly
20
Cylinder
20
Rupture Disc
20
Pressure Vent Port
20
Agent Fill Port
20
Dip Tube
21
Cylinder Valve
21
MV Series Valve Features
22
Lv Series Valve Features
25
Trim Components
28
Pressure Gauge Assembly
28
Low-Pressure Supervisory Switch Assembly
29
Low-Pressure Supervisory Switch Conduit Adapter
30
Electric Valve Actuator W Limit Switch
30
Manual Valve Actuator
31
Discharge Connection Fittings
32
MV Series Fittings
32
Lv Series Fittings
32
Multi-Cylinder Arrangement Components
33
Remote Nitrogen Actuation Cylinder
33
Remote Pneumatic Actuation/Bracket Kit
33
Pneumatic Valve Actuator
34
Vent Check
34
Pilot Actuation MID Line Tee
35
Male NPT Adapter
35
Pilot Actuation End Line Tee
35
Flex Hose
35
Explosion-Proof Actuation Components
36
Lever-Pull Manual Actuator
36
Manual/Pneumatic Actuator
36
Remote Pilot Actuation Tee
36
Pilot Actuation Check Valve
37
Explosion-Proof Low-Pressure Supervisory Switch Assembly
37
Supplemental Components
38
Manifold Check Valve
38
Discharge Pressure Switch
39
Explosion-Proof Discharge Pressure Switch, Self-Restoring
39
Discharge Manifold
40
Pressure Release Trip
43
Discharge Indicator
43
Discharge Nozzles
44
Fixed Orifice Nozzles
44
Local Application, Overhead (LAOH) Nozzle
44
Tankside (TS) Nozzle
44
Total Flood (TF) Nozzle
44
Three-Way Nozzle
45
Duct and Plenum (D/P) Nozzle
45
Screening (SCR) Nozzle
45
Total Flood, Perimeter (TFP) Nozzle
45
JSH Discharge Nozzles
46
Nozzle Blow-Off Caps
47
System Design
49
Hazard Analysis
49
Fuel Source
49
Choosing Proper System Type
50
General Purpose and Industrial Hazards
52
Local Application - Overhead
53
Nozzle Orientation
53
Temperature Limitations
53
Agent Application
53
Local Application - Tankside
54
Nozzle Orientation
54
Temperature Limitations
54
Agent Application
54
Total Flood - JSH Nozzles
55
Nozzle Orientation
55
Temperature Limitations
56
Agent Application
56
Total Flood - Fixed Orifice
57
Total Flood - Standard Coverage
57
Nozzle Orientation
57
Temperature Limitations
58
Agent Application
58
Total Flood - Module Perimeter Coverage
59
Nozzle Orientation
59
Temperature Limitations
61
Agent Application
61
Screening Nozzle with Total Flood Applications
61
Vehicle Paint Spray Booth (VPSB)
63
Temperature Limitations
64
Work Area Coverage, VPSB
64
Nozzle Orientation - Standard Work Area Coverage
65
Agent Application - Standard Work Area Coverage
67
Module Perimeter Work Area Coverage
67
Module Perimeter Work Area Coverage - Nozzle Orientation
68
Module Perimeter Work Area Coverage - Agent Application
68
Plenum Coverage, VPSB
69
Plenum Coverage
72
Duct Coverage, VPSB
73
Open Front Paint Spray Booths (OFPSB)
74
Temperature Limitations
74
Agent Application
75
Open Front Paint Spray Booths (OFPSB) Nozzle Coverages
75
Work Area and Plenum, OFPSB
75
Ducts, OFPSB
76
Pipe Determination
78
Peripheral Equipment and Accessories
79
Control Panel
79
Accessories
79
Sample Equipment Order List
80
System Installation
83
Mechanical Installation
84
Installing Cylinder Bracket Channels
84
Installing Discharge Piping
87
Threaded Pipe
87
Threaded Fittings
87
Grooved Fittings and Couplings
88
Pipe Reductions
88
Pipe Supports and Hangers
88
Installing Nozzles
89
Installing Cylinder Assembly
89
Installing Pressure Gauge Assembly
89
Installing Low-Pressure Supervisory Switch Assembly
89
Installing Discharge Pressure Switch
90
Installing Pilot Actuation Line
91
Installation Using Flex Hose
91
Installation Using Copper Tubing
91
Installation Using Schedule 40 Pipe
92
Installing Remote Nitrogen Actuation Cylinder
92
Electrical Installation
97
Commissioning System
99
System Review
99
Discharge Piping Pressure Test
100
Installing Pneumatic Valve Actuator
101
Installing Electric Valve Actuator
101
Installing Manual Valve Actuator
102
Warning Signs
102
Additional Considerations
102
Manual
104
Label
104
System Inspection and Maintenance
105
Monthly Inspection
105
Maintenance
106
Semi-Annual Maintenance
107
Pressure Check
107
Cylinder Weighing
107
Annual Maintenance
107
Five Year Maintenance
108
Six Year Maintenance
109
Additional Notes on Maintenance
109
System Recharge and Reset
111
Cleanup Following Discharge
111
Piping and Nozzles
111
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Janus Mv Series Specifications
General
Brand
Janus
Model
Mv Series
Category
Fire Extinguisher
Language
English
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