METHOD STATEMENT FOR INSTALLATION, TESTING AND COMMISSIONING OF UNDERGROUND & ABOVE GROUND PVC PIPE SYSTEM

1. SCOPE

This procedure covers installation, testing and commissioning of Underground & Above Ground PVC pipe system.

2. REFERENCES

2.1. Contract Documents

⦁ Project Specification

⦁ Contract Drawings

⦁ Bill of Quantity

2.2. Contractor Submittals

1. Project Quality and Safety Plan

2. Material Approvals

3. Shop Drawings

4. Related Method Statements

3. DEFINITIONS / ABBREVIATIONS

3.1. Definitions

⦁ Project — [Write Your Project Name Here]

⦁ Client — [Write Your Client Name Here]

⦁ Consultant — [Write Your Consultant Name Here]

⦁ PMC — [Write Your PMC Name Here]

⦁ Contractor — [Write Your Contractor Name Here]

⦁ MEP Design Build Contractor — [Write Your MEP Design Build Contractor Name Here]

3.2. Abbreviations

⦁ RFC — Request for Clarifications

⦁ RFI — Request for Inspection

⦁ MA — Material Application

⦁ MEP — Mechanical Electrical Plumbing

⦁ MET — Method Statement

⦁ MIR — Material Inspection Request

⦁ PPE — Personal Protective Equipment

⦁ PTW — Permit To Work (Working at Height or Enclosed Spaces)

⦁ RA — Hazard Identification and Risk Assessment

⦁ SPD — Shop Drawing

4. QUALITY CONTROL

Quality of installation and materials at site will be ensured by our project team consisting of a Project Manager, Project Engineers, QA/QC Officer and the Site Supervisor. All will be according to the Specification, Applicable Standards and/or industry norms.

5. EQUIPMENT / TOOLS / MANPOWER / MATERIALS

5.1. Materials Used

All materials to be used are as per the approved material submittals.

5.2. Tools & Equipment

The following Tools and Equipment will be used for this Installation:

1. Hand tools

2. Drill Machines

3. Measuring Equipment

4. Hack Saw

5. High Pressure PVC Glue

6. Pipe Wrenches & Spanners, etc.

6. WORK SEQUENCE AND METHODOLOGY

6.1. Piping System

6.1.1 Storage and Handling

The pipes will be stacked in the site store on a flat surface. Fittings will be separately packed and stored as per the sizes required for the project. All open ends of pipes will be covered to protect from foreign matter, dirt/debris.

6.1.2 General Piping Installation Guidelines

1. Pipe work shall be installed in accordance with the piping general arrangements and their supporting drawings, specifications and schedules.

2. Installation of pipe work shall be carried out under conditions satisfactory to the consultant.

3. All work performed and completed will meet the approval of the consultant.

4. Scheduling of work to carry out the installation of pipe work shall be agreed and to the satisfaction of the main contractor and shall be co-coordinated with the work schedules of other trades and disciplines involved in the overall construction.

6.1.3 Installation of Pipes (PVC Type 600)

1. Mark the pipe path by using white chalks/marker pen as per approved coordination drawings.

2. Run all piping as direct as possible, avoiding unnecessary offsets and conceal piping in finished rooms.

3. Make tees, bends, reducers, etc. connections with standard fittings for full size branches.

4. All piping will be rigidly supported by a combination network comprised of pipe hangers and rigid support brackets. Pipe hangers are used to support the "dead load" of the pipe system. Pipe hangers will be spaced according to the relevant standard/Specification clause and Hanger rod sizes and numbers will comply with the requirement of the respective standard/Specification clause or Manufacturer's recommendations.

5. Level the brackets by using split level, water level etc.

6. Place the pipe on the brackets and insert the "U" bolts and tight it firmly.

7. Where supports are supporting pipelines or equipment subjected to vibration or noise, rubber vibration isolation blocks should be provided and be so installed as to prevent the transmission of vibration or noise to the environment.

6.1.4 Threaded Joints

1. Threaded piping will be made with Teflon tape or with a suitable pipe sealing compound (jute and mastic combination) applied on male threads only. Ends of pipe will be reamed out before being made up into fittings.

2. Joints in threaded steel pipe will conform to the British Standard BS 21. All burrs will be removed, pipe ends will be reamed or filed out size of bore, and all chips will be removed.

6.1.5 Pipe Fabrications and Installation

1. Make piping layout and installation in the most advantageous manner possible with respect to headroom, valve access, opening and equipment clearance, and clearance for other work, particular attention will be given to piping in the vicinity of equipment. Preserve the equipment parts for maintenance.

2. Cut all pipes accurately to measurement determined at the site. After cutting the pipe, ream it and remove all burrs.

3. Install piping neatly, free from unnecessary traps and pockets. Work into place without springing or forcing. Use fittings to make all changes in direction. Make all connections to equipment using flanged joints or unions. Make reducing connections with reducing fittings only.

4. Remove dirt, scale and other foreign matter from inside piping before tying in sections, fitting, valves or equipment.