Skip to content
Fire Protection Engineering

Firewater Network Engineering and Equipment Specification

We deliver end to end firewater system engineering covering layout, pump house, tanks, hydrants, monitors, foam and the civil and structural integration that ties it all together

Technical overview

Firewater Network Engineering
and Equipment Specification

Firewater network engineering is the full detailed engineering scope that turns a hydraulically validated design basis into a firewater system your team can actually build. Where hydraulic modelling is a separate calculation discipline that sizes pumps and validates pressures, network engineering produces the layout drawings, equipment specifications, civil and structural details, electrical and instrumentation integration and procurement packages that carry the design from calculation through to construction. Our work spans ring main routing with sectional isolation, pump house architecture combining an electric main pump, a diesel backup and a jockey pump per NFPA 20, atmospheric or pressurised tank storage with corrosion and coating selection, hydrant and monitor placement matched to scenario reach, foam water deluge skids per NFPA 11 and 16, area protection systems for tank farms and process units, and full integration with detection and activation logic and your emergency response procedures. Beyond the mechanical design, our team also assembles the regulatory submission packages for TAC India, OISD STD 116, AHJ fire marshal reviews and FM Global HPR tier qualification dossiers.

Firewater Network Engineering and Equipment Specification Overview
Engineering process

Firewater Network Engineering and Equipment Specification workflow

Fire Demand Calculation

Calculate fire demand per NFPA 13 (sprinkler) / NFPA 15 (water spray) / NFPA 16 (foam water) / NFPA 24 (private fire main), apply credible worst case scenario from FERA, single largest fire, two area simultaneous, hose stream allowance.

Network Layout Design

Design firewater network per NFPA 24, looped main with sectional isolation valves, hydrant spacing per FM DS 4 1 (typically 60 to 90m), monitor placement for cooling and exposure protection, align with site layout and access.

Fire Pump House Design

Design fire pump house per NFPA 20, electric main pump + diesel backup, jockey pump for pressure maintenance, pump house ventilation, fuel storage (typical 4 hour supply), align with NEMA / IEC enclosure ratings.

Firewater Storage Design

Size firewater storage per credible worst case scenario duration (typical 4 hour minimum per NFPA / FM), specify tank type (vertical bolted, welded, RCC, FRP), tank coating per environment, water quality maintenance (algicide, biocide).

Detection & Activation Integration

Integrate firewater system with detection and activation, manual call points, deluge valves per NFPA 15 / 16 (pneumatic / electric / hydraulic), cause and effect logic per ISA TR84.00.07, align with F&G and ESD systems.

Commissioning & ITM Programme

Commission firewater per NFPA 25, flushing, pressure testing, flow testing, deluge spray pattern verification, design ITM programme (weekly visual, monthly pump test, annual full flow test), align with FM Global HPR / insurer requirements.

Firewater Network Engineering and Equipment Specification Scope
Scope of work

Every deliverable from basis to handover

Complete Firewater Network Engineering and Equipment Specification scope covering every calculation, drawing, specification, and construction support activity.

We route the ring main network and place sectional isolation valves so sections can be taken out of service without losing protection
We architect the pump house with an electric main pump, a diesel backup and a jockey pump to the redundancy expected by NFPA 20
We design atmospheric or pressurised tank storage covering coating, NPSH and the ride through duration your scenarios demand
We place hydrants and monitors against the reach and trajectory each credible scenario requires
We specify foam water deluge skids per NFPA 11 and 16 complete with the proportioning system
We design area protection covering tank farm cooling, process unit exposure and foam pouring
We integrate detection and activation with cause and effect logic and deluge valve actuation
We coordinate the civil and structural design of the pump house, tank foundations, pipe supports and valve pits
We write the electrical and instrumentation specifications covering motor sizing, panels and controls
We prepare the regulatory submission packages for TAC, OISD, the AHJ and FM Global HPR qualification
Engineering outcomes

Outcomes of Firewater Network Engineering and Equipment Specification

Firewater Supply and Demand Assurance
  • We confirm firewater is available for every credible scenario
  • We validate the coverage and reach of your hydrants and monitors
  • We tighten exposure protection across the plant
  • We make sure the system supports a ready emergency response
NFPA 24 and FM Global Firewater Defence
  • We design to NFPA 24 and 20
  • We document OISD STD 116 compliance
  • We support your TAC India ratings
  • We produce a dossier that holds up to AHJ and insurer review
Firewater Network Hydraulic Reliability
  • We strengthen your inspection, testing and maintenance regime
  • We find the pressure drop bottlenecks in the network
  • We make your drills more realistic
  • We support periodic flow testing
Firewater Infrastructure Cost Efficiency
  • We right size pump and storage capacity
  • We help reduce your insurance loadings
  • We target retrofit capital at the weakest links
  • We lower your business interruption exposure
Standards & references

Codes & standards we work to

NFPA 24 (private fire service mains)NFPA 20 (fire pumps)NFPA 22 (water tanks)NFPA 11 and 16 (foam systems)OISD STD 116TAC IndiaFM Global DS 3 7, 3 to 26 and 4 to 9API RP 2030NBC 2016 Part 4 (National Building Code, India)OISD STD 117 (Fire Protection)IS 15683 and IS 13716 (BIS Fire)NFPA 30 (Flammable and Combustible Liquids)ANSI and ISA 84.91.01 to 2020 (Process Safety Critical Instrumentation)
When to engage

Triggers that signal the need

New facility firewater detailed engineeringBrownfield network upgrade or replacementTAC India or OISD India compliance submissionFM Global HPR qualification projectAcquisition due diligence that reveals an inadequate designCapacity expansion that changes the firewater scenario setInsurer driven retrofit requirement
Industries served

Where Firewater Network Engineering and Equipment Specification applies

Oil & Gas, Upstream

Wellheads, separators, gas compression, FPSO topsides, produced water systems.

UpstreamOffshoreFPSO
Refineries & Petrochemicals

Distillation columns, reactors, heat exchangers, storage spheres, LPG handling.

RefiningPetrochemical
LNG & Gas Processing

Cryogenic exchangers, liquefaction trains, BOG compressors, storage and sendout.

LNGCryogenic
Specialty Chemicals

Reactive systems, batch reactors, solvent handling, runaway reaction scenarios.

ReactiveBatch
Power Generation

Boilers, HRSGs, steam headers, hydrogen systems, ammonia SCR units.

PowerHydrogen
Pharma & Food

Sterile vessels, CIP/SIP, pressure fermenters, solvent recovery, spray dryers.

PharmaFood & Bev
What we deliver

Tangible deliverables

  • Firewater design basis and equipment list
  • Network layout drawings with isolation valve placement
  • Pump house general arrangement and equipment specifications
  • Atmospheric and pressurised tank design package
  • Hydrant and monitor placement plan with coverage map
  • Foam water deluge skid specifications
  • Area protection schemes for the tank farm and process units
  • Civil, structural, electrical and instrumentation interface drawings
  • TAC, OISD, AHJ and FM Global submission dossier
  • Procurement specifications for major equipment
Get Started

Ready to start your project?

Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.