Methane Pipes for farms

Technical Specification for Methane Pipes for Farms

1. Overview

This document outlines the technical specifications for methane pipes used in agricultural settings for the collection and distribution of biogas from anaerobic digesters.

2. General Requirements

• Material: High-density polyethylene (HDPE) or equivalent
• Color: Green with yellow stripes for easy identification
• UV resistance: Suitable for outdoor use
• Operating temperature range: -20°C to 60°C

3. Dimensions and Sizes

1. Diameter options:
   • 50 mm
   • 100 mm
   • 150 mm
   • 200 mm
2. Length:
   • Standard: 6 meters
   • Custom lengths available upon request
3. Wall thickness:
   • Dependent on diameter and pressure rating

4. Connection Methods

1. Butt fusion welding
2. Electrofusion fittings
3. Mechanical couplings

5. Safety Features

• Anti-static properties to prevent buildup of static electricity
• Flame-retardant additives
• Pressure relief valves for high-pressure systems

6. Installation Guidelines

1. Site preparation:
   • Ensure a level and stable surface
   • Remove any sharp objects that could damage the pipes
2. Trenching:
   • Depth: Minimum 0.9 meters
   • Width: Sufficient for pipe diameter and bedding material
3. Backfilling:
   • Use fine, non-abrasive material
   • Avoid large rocks or debris
4. Testing:
   • Pressure test the system before backfilling
   • Leak detection using soap solution or electronic devices

7. Maintenance and Inspection

• Regular visual inspections for cracks, leaks, or damage
• Annual pressure testing
• Cleaning of pipes to prevent buildup of debris or condensation

8. Compliance and Standards

• ISO 4437: Plastics piping systems for the supply of gaseous fuels
• ASTM D2513: Standard Specification for Thermoplastic Gas Pressure Pipe, Tubing, and Fittings
• Local regulations and codes must be followed