1 CXS490 - Pre-Engineered Fire Protection Systems Off-Road Vehicle Systems

2 systems can be either manually operated or automatically operated. uses multi-purpose dry chemical (monoammonium phosphate base) for Class A, B and C fires. not designed to extinguish all possible fires occurring on off-road vehicles. Overview

3 Cylinders with Separate Expellant Tanks

4 Another Configuration

5 pre-engineered cartridge-operated dry chemical system with a fixed nozzle distribution network. approved by Factory Mutual Research Corporation capable of automatic detection & actuation and/or remote manual actuation. Description

6 When a fire is detected, system is actuated either manually or automatically, operating the pneumatic actuator pneumatic actuator ruptures a seal disc in expellant gas cartridge This pressurizes & fluidizes dry chemical extinguishing agent the tank, ruptures the burst disc when the required pressure is reached propels the dry chemical through the network of distribution hose dry chemical discharged through fixed nozzles and into the protected areas suppressing the fire. Operation

7 Automatic detection incorporates electric detection either linear detection wire or spot detection. Detection

8 Mobile equipment and industrial hazards total flooding or local application Application

9 Consists of: Dry Chemical Agent Storage Tank(s), Expellant Gas Cartridge, Distribution Piping (Hose) and Nozzles, ManualI/Automatic Actuator, Automatic Detection System,and Accessories. Basic System

10 Consists of a welded steel tank, gas tube brass fill cap, agent outlet bursting disc and union, instruction nameplate. Agent Storage Tank

11 Tanks for temperature ranges of +32 F to +120 F (0 C to +49 C) LT-A , has cartridge receiver and an expellant gas cartridge located on side of tank. Agent Storage Tank

12 Low profile & extreme temperature tanks -65 F to +210 F (-54 C to +99 C) have a separate remote cartridge connected to the tank by high pressure 114 in. (2.9 m) hose. Tanks painted with a red enamel paint Available in five sizes 10 Ib.(4.5 kg); 20 Ib.(9 kg); 30 Ib. (13.5 kg) 125 Ib. (57 kg) & 250 Ib.(114 kg) Agent Storage Tank

13 Consists of: a rugged, welded steel back plate and clamp arm assembly designed to retain & protect agent storage tank in hostile environment that they are installed in. painted red enamel and can be mounted by bolting or welding. Mounting Bracket - Smaller Tanks

14 is fabricated of 1/2 in. steel conforms to the outline of the tank assembly bottom can be welded to the mounting surface and tank can then be bolted to ring using the pre-threaded holes in ring. Mounting Ring - Larger Tanks

15 spun high pressure cartridge containing carbon dioxide for temperature ranges of +32°F to +120°F (0°C to +49°C) nitrogen for extreme temperature ranges of -65°F to +210°F (-54°C to +99°C). Expellant Gas Cartridge

16 distribution piping (hose) network is designed to properly distribute the dry chemical to the nozzles hose (to survive the vibration on mobile equipment) is used to distribute the dry chemical Pre-engineered systems have predetermined hose sizes maximum and minimum hose lengths, and number of nozzles. Distribution Piping

17 three types of nozzles available each type of nozzle designed and tested for various applications and area of coverage Nozzle blow-off caps are available keeps nozzles free of dirt and grease. Nozzles

18 Manual/Automatic Actuator(s) manual actuator consists of an actuator body, a nitrogen cartridge, and a mounting bracket Actuators

19 Two types of manual actuators are available: Remote & Dashboard When manual actuator is operated by hand gas supplied from nitrogen cartridge released into 114 in. (2.9 m) actuation hose nitrogen pressure operates pneumatic actuator punctures a larger expellant gas cartridge (carbon dioxide or nitrogen) fluidizes and propels dry chemical from tank. Actuators

20 Automatic actuators operate the same way except they can be operated automatically by the detection system. Actuators

21 Three types of detector options can be used: a temperature-sensitive linear wire, a spot type heat detector, or a gas filled stainless steel tubing. Detection System Types

22 Temperature-sensitive linear wire When fire breaks out wire insulation melts, completing an electrical circuit and causes detection system to actuate fire suppression system. Linear Wire

23 Internal contacts close when the temperature of surrounding air reaches set point temperature of detector this completes an electrical circuit and causes the detection system to actuate the fire suppression system. Spot Type Heat Detectors

24 Gas filled stainless steel tubing When the gas in the tubing heats up the increase in pressure operates a responder completing an electrical circuit and causes the detection system to actuate fire suppression system. Gas Filled Tubing

25 Detection & Control System

26 dry chemical pre-engineered, incorporating automatic detection with engine shutdown capabilities. Approved by Factory Mutual Research Corporation based on actual fire tests by manufacturer Specifications

27 Installation shall be in accordance with approved Design, Installation, Maintenance Manual conforms to NFPA Standard: 17 - Dry Chemical Extinguishing System & Mobile Surface Mining Equipment Specifications