Fire

🚒 Fire Fighting Piping System Installation & Testing Method Statement

1.0 🔍 Purpose

This method statement outlines the step-by-step process for the installation, testing, and commissioning of the Fire Fighting Piping System and all related accessories across the project site.


2.0 📌 Scope of Work

This document covers the:

  • Supply of fire fighting piping and fittings
  • On-site installation of piping networks and accessories
  • Testing and commissioning of the complete fire protection system
  • Compliance with project requirements and local authority standards

3.0 📁 References

3.1 Drawings:

  • All approved Fire Fighting Layouts

3.2 Specifications:

  • Local authority guidelines
  • Civil Defense requirements
  • Project-specific specifications

4.0 📘 Definitions

  • Main Contractor: Overall project controller
  • Subcontractor: Assigned fire fighting works contractor
  • Quality Engineer: Site-based QA/QC representative
  • Project Engineer: Designated engineering lead
  • AWS, ASME, ASTM, AWWA, FDC, FM, NFPA, NPSH, UL: Industry-standard abbreviations

5.0 👷‍♂️ Responsibilities

  • Project Manager: Ensures project compliance and execution
  • Construction Manager: Oversees daily site operations
  • Site Supervisor/Foreman: Maintains manpower productivity and workmanship
  • QA/QC Engineer: Verifies compliance with drawings and specifications

6.0 🛠 Tools & Equipment

Ensure availability of the following tools before work starts:

  • Manual testing pump
  • Threading and grooving machines
  • Pipe wrench, cutter, and saw
  • Welding machine
  • Measuring tape, marker, and chalk line
  • Adjustable and fix spanners
  • Electric drill and bits
  • Fire extinguisher
  • Scaffolding and lifting gear

7.0 📋 Installation & Testing Procedure

7.1 General Requirements

  • Use only approved materials and shop drawings
  • Conduct material inspection with MIR
  • Verify approval from consultant and Civil Defense

7.2 Material Handling

  • Store pipes with end caps on level, dry surfaces
  • Use timber supports every 1.5m to avoid deformation

7.3 Pipe Installation

🔽 Below Grade

  • HDPE pipes to be installed in pre-approved trenches
  • Use soft sand bedding and concrete encasement where necessary
  • Electro-fusion welding for HDPE jointing
  • Warning tapes to be installed per drawings

🔼 Above Grade

  • Avoid routing above electrical systems
  • Mark and install supports per NFPA 13
  • Use GI sleeves and fire sealing for pipe penetrations
  • Jointing to follow ASME/AWWA standards:
    • Flanged, threaded, grooved, or twist-lock types
    • Use stainless steel fasteners for outdoor use
    • Apply corrosion-resistant paint (Post Office Red)

7.4 🔧 Accessories Installation

  • Install air vents, drain points, and inspector’s test connections
  • FDCs to include automatic drain valves
  • Trim and gauges to be properly routed and supported

7.5 💦 Valve Installation

  • Install valves as per NFPA 13 and authority requirements
  • Integrate zone control valves with FAS and BMS
  • Provide OS&Y valves with tamper switches

7.6 Specialty Valves

  • Alarm valves to include retarding chamber and bypass check valves
  • Ensure vertical installation with correct flow direction

7.7 ✅ System Identification

  • Label all piping and system components
  • Follow NFPA 13 and project specification labeling standards

7.8 🔍 Hydrostatic Testing

  • Pressure test system at 1.5x working pressure for 2 hours
  • Use only calibrated gauges
  • Flush the system with potable water until clean
  • Record and file all test results

8.0 📎 Attachments

  • ✔ Quality Control Procedures
  • ✔ Inspection & Test Plan (ITP)
  • ✔ Pre-commissioning Checklists
  • ✔ Pipe Pressure Test Certificates
  • ✔ Risk Assessment Reports

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