2020 Guide to Good Industry Practices Bulk LPG ...

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Overview

This guide aims to provide thorough instruction on best practices for handling Bulk LPG installations in 2020, ensuring compliance with industry standards and safety measures. Search results highlighted the importance of local regulations and standards, ensuring all installations are safe and manageable.

Separation Distances

LPG installations require specific separation distances from important buildings, boundaries, and other equipment to prevent hazards. For example:

• Tanks should be at least 1.5 meters away from vertical electric cables carrying less than 1 kV and 7.5 meters for cables with 1 kV or more.
• Underground tanks need a minimum separation of 1 meter from other tanks and buildings.

From Other Properties and Tanks

Distances range from 3 to 7.6 meters for tanks with different capacities and configurations.

From Flammable Liquids

Flammable liquids with a flashpoint below 65°C should be positioned as per the guidelines to prevent ignition risks. For example:

• Minimum 6 meters separation between tanks containing oxygen or cryogenics and LPG tanks up to 265,000 liters.

From Cylinder Filling Plants

Ensure a separation of 10 to 15 meters between cylinder filling buildings and LPG tanks, depending on the tank’s capacity.

In Automotive Retail Sites

Adhere to a strict separation distance based on local regulations or as mentioned in Table 5, which includes:

• 3 meters from LPG dispensers and fuel dispensers.
• 8 meters from LPG cylinder storage areas.

Natural Phenomenon Precautions

Safeguards against lightning, earthquakes, flooding, and hurricanes should be in place. For instance:

• Install seismic valves in earthquake zones.
• Secure tanks to prevent flotation in high-water table areas.

Tank Design and Features

General Requirements

LPG tanks must comply with recognized standards such as ASME VIII. They should be designed to handle the product's vapor pressure at the designated maximum temperature. For instance:

• Tanks for propane and butane have different temperature and pressure specifications.
• Tanks should typically not exceed 97% liquid full at the maximum design temperature.

Construction

Most LPG tanks are either cylindrical or spherical:

• Materials must withstand operating conditions between -20°C to 50°C.
• Above ground tanks should be painted in light colors to minimize heat absorption.

Markings and Labels

Tanks should display clear, indelible information regarding their design, manufacture, and operational attributes, such as:

• Design code and maximum operating pressure.
• Date of manufacture and test pressure.

Safety Measures

Pressure Relief Valves

All LPG tanks must be equipped with pressure relief valves to prevent over-pressurization and ensure safety in overheating incidents.

Security Protocols

Sites with unrestricted public access should be secured by fencing, and security measures should be in place to prevent unauthorized access or damage.

Fire Precautions

General Principles

Fire risks should be minimized through robust design, layout, and emergency procedures, with regular drills and training for personnel.

Water Spray Systems

Fixed water spray systems can help control fire risks but should be regularly tested to ensure reliability. Alternatively, fixed water monitors are recommended for delivering dense water sprays.

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