Janus Mv Series User Manual

Page: iii
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
Contents
1 GENERAL INFORMATION 1
1.1 Listings and Approvals 2
1.2 Extinguishing Agent 3
1.3 Safety Considerations 3
2 SYSTEM COMPONENTS AND DESCRIPTION 5
2.1 Cylinder Assembly 6
2.1.1 Cylinder 6
2.1.1.1 Rupture Disc 6
2.1.1.2 Pressure Vent Port 6
2.1.1.3 Agent Fill Port 6
2.1.2 Dip Tube 7
2.1.3 Cylinder Valve 7
2.1.3.1 Mv Series Valve Features 8
2.1.3.2 Lv Series Valve Features 11
2.2 Trim Components 14
2.2.1 Pressure Gauge Assembly 14
2.2.2 Low-Pressure Supervisory Switch Assembly 15
2.2.2.1 Low-Pressure Supervisory Switch Conduit Adapter 16
2.2.3 Electric Valve Actuator w Limit Switch 16
2.2.4 Manual Valve Actuator 17
2.2.5 Discharge Connection Fittings 18
2.2.5.1 Mv Series Fittings 18
2.2.5.2 Lv Series Fittings 18
2.3 Multi-Cylinder Arrangement Components 19
2.3.1 Remote Nitrogen Actuation Cylinder 19
2.3.2 Remote Pneumatic Actuation/Bracket Kit 19
2.3.3 Pneumatic Valve Actuator 20
2.3.4 Vent Check 20
2.3.5 Pilot Actuation Mid Line Tee 21
2.3.6 Male NPT Adapter 21
2.3.7 Pilot Actuation End Line Tee 21
2.3.8 Flex Hose 21
2.4 Explosion-Proof Actuation Components 22
2.4.1 Lever-Pull Manual Actuator 22
2.4.2 Manual/Pneumatic Actuator 22
2.4.3 Remote Pilot Actuation Tee 22
2.4.4 Pilot Actuation Check Valve 23
2.4.5 Explosion-Proof Low-Pressure Supervisory Switch Assembly 23
2.5 Supplemental Components 24
2.5.1 Manifold Check Valve 24
2.5.2 Discharge Pressure Switch 25
2.5.2.1 Explosion-Proof Discharge Pressure Switch, Self-Restoring 25
2.5.3 Discharge Manifold 26
2.5.4 Pressure Release Trip 29
2.5.5 Discharge Indicator 29
2.6 Discharge Nozzles 30
2.6.1 FixedOriceNozzles 30
2.6.1.1 Local Application, Overhead (LAOH) Nozzle 30

Janus Mv Series Specifications

General

Brand	Janus
Model	Mv Series
Category	Fire Extinguisher
Language	English