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
HI