The Complete Fire Fighting with AutoCAD,Elite,Excel & NFPA

Explore the water firefighting system, its key components—water tank, fire pump, zone control valve, fire hose cabinet, sprinklers, and piping—and learn how sprinklers sense heat and automatically discharge water.

Explore sprinkler specifications, including temperature ratings, color-coded glass bulbs, and standard versus fast response options for precise fire protection.

Explore sprinkler specifications, including the k factor and orifice size, and how ceiling height affects water flow, plus pendant sprinkler types and their hospital and suspended ceiling applications.

Explore sprinkler types—upright, sidewall, corrosion-resistant, dry, and indirect—and learn how installation, water spray, and bronze or stainless steel selections suit warehouses, labs, and low-temperature or high-ceiling spaces.

Classify places by degree of hazard and probability of fire to guide firefighting system design, distinguishing light hazard, ordinary hazard groups 1-2, and extra hazard groups 1-2 with real-world examples.

Learn how to select sprinkler k-factors using standard or fast response types across non-storage and storage scenarios, guided by hazard levels, ceiling heights, and storage configurations.

Design sprinkler distribution by selecting coverage areas per sprinkler according to hazard level and using hydraulic calculations or pipe schedule, then apply spacing rules for walls and between sprinklers.

Explain the zoom control station on the fire sprinkler system, including the OS&Y gate valve, main riser, and zoom branch, enabling zone isolation, flow monitoring, and alarms.

Explore the zoom control station components, focusing on the butterfly valve as an alternative to the gate valve, and how a pressure reducing valve maintains 12.1 pa for sprinklers.

Explore how a check valve prevents backflow and balances water between sprinklers and fire hose cabinets, and how a water flow switch signals the fire alarm when water flows.

Explore the zoom control station’s test and drain valve, with drain, test, and off positions, used to test water quality and measure sprinkler pressure via the test pipe.

Design the zoom control station by sizing the drain pipe to the riser pipe. Install it on floors based on building area, number of floors, and hazard level.

Learn how the fire department inlet (CMS) connection adds a second water source to the building, with two 2.5-inch outlets on a 4-inch main and 250 gpm per outlet.

Install cms connection at accessible building entrances, use a check valve on the line, avoid gate valves, and ensure hydrants have underground feeds and thrust plugs for reliable water supply.

Explore hydrant types and classifications, including non-controllable and controllable outlets (250 gpm per outlet), dry systems, municipal supply, and color-coded gpm classes (blue >1500, green 1000–1500, orange 500–1000, red ≤500).

Explore the fire hose cabinet and its components, including the enclosure, fire hose, and discharge nozzle, and learn standpipe system design and installation options, including wall mounted, semi-exposed, and recessed.

Learn about class one fire hose cabinets, 2.5 inch hoses, and the angle and landing valves. Explore reel and rack installations, cabinet locations, and standard system specs.

Explain class two fire hose cabinets with 1 inch or 1.5 inch hoses. Describe class three, combining 1 inch and 2.5 inch hoses, restricted valve, 250 gpm, 30 m spacing.

Explore above-ground water pipes for firefighting systems, including arc-welded galvanized steel, seamless steel, copper (K, L, M), and PVC, covering installation, design properties, and corrosion resistance.

Explains underground pipe types, including ductile iron with rust-resistant coating and burial depths of 80 cm for walking, 90 cm for cars, and 180 cm for trucks.

Explore grooved pipe connections (Victaulic) for fire fighting water systems, focusing on leakage protection and shock absorption. Learn about pipe sleeves, hangers, pin radii, and hanger spacing for steel pipes.

Design water fire fighting piping grid with above-ground pipes from pump room to buildings, install underground intakes, and test with hydrostatic pressure at 13.8 bar using a pressure gauge.

Use sectional and isolating valves, including OS and Y gate valves, to divide the fire piping grid and preserve continuity during maintenance; apply automatic release valves to vent air.

Explain the wet pipe water firefighting system and the alarm check valve, showing how pressure changes trigger the main pump and ensure one-way flow to sprinklers.

Explain how the alarm check valve in a wet pipe firefighting system uses pressure gauges and a pressure switch, a pull valve, to detect leaks or fire and activate pumps.

Delay activation of the main pump using the retard chamber in the alarm check valve, preventing false activation from small leaks and ensuring operation only for real fires.

Learn how the alarm check valve functions in a wet pipe system, featuring the gong bell alarm, strainer, drain valves, retard jumper, and a controlling valve.

Describe how dry pipe systems keep water pressurized before the dry pipe valve, keep post-valve piping dry with air to prevent freezing, and release water into sprinklers when fire triggers.

Summarize the dry pipe valve system, detailing two pressure gauges, pull valves, drain valve and pipe, pressure switch, air compressor, jockey and main pumps, and the accelerator.

Explain how the deluge system pressurizes piping before the deluge valve while after the valve pipes remain air filled, delivering water through all open sprinklers simultaneously in hazard areas.

Explain the deluge water firefighting system's operation, including the deluge valve with its arm and gate, the fire alarm control panel, the solenoid valve, and manual activation via pull station.

Learn the working principle of the pre-action water firefighting system, including the pre-action valve, sensing sprinklers, and two-signal operation to prevent false activations.

Analyze the pump room and its components in a water firefighting system, including the main pump and the types of centrifugal pumps. Learn their capacities, suction arrangements, and maintenance features.

Explore the fire pump room components, detailing the main vertical turbine pump, emergency diesel pump, and jockey make-up pump, and explain suction and discharge relationships, laminar flow, and backup reliability.

Analyze the main pump piping design, including suction pipe standards, 20 psi minimum pressure, 15 ft/s maximum speed, anti vortex plates, eccentric reducers, and cross-sectional area based on flow rate.

Examine the pump room piping design for a water firefighting system, covering suction and discharge pipe layout, strainer use for open water sources, and ten times pipe diameter spacing. Evaluate valve selection including os and gate valves, tamper switches, and check valves, and note recommendations against butterfly valves to minimize pressure drop and maintain design pressure.

Master pump room accessories that control and measure fire pump performance. The lesson covers pressure gauges on suction and discharge, automatic air release valves, and pressure relief valves.

Learn how a 0.5 inch stainless steel or brass pressure sensing line, installed between check valves and gate valves, uses a pressure switch to control main and jockey pumps.

Explore the submersible pump that drains residual water from the pump room and is installed on a lower level for maintenance and dryness.

Design fire pump room for easy access, avoid equipment, install hazard-based sprinklers and fire-rated construction with foam extinguishers for diesel pumps; allow domestic and hvac pumps, maintain 4–49°C, and drain.

Identify pack flow presentation, a valve group for low water value and municipality supply. Examine fire pump test header and bypass, noting two gate valves and two inner check valves.