LPG Basics-- Specialised course for Refreshers and Freshers in LPG industry -- Storage systems for LPG and relevant rules Module 3 of 8

A: Typical maintenance practices include regular visual inspection for leaks, corrosion, and damage; checking safety valves and pressure relief devices; testing and calibrating level gauges and instrumentation; verifying grounding systems; cleaning vents and filters; and adherence to inspection intervals mandated by codes. Documentation of all maintenance activities is essential for safety audits and regulatory compliance. Refer to NFPA 58 and manufacturer manuals for detailed maintenance protocols.

A: Emergency measures include installing fire detection and suppression systems, providing adequate ventilation, establishing safe evacuation routes, training personnel on emergency response and leak handling, maintaining emergency shutdown valves, and having communication protocols with local fire departments. Facilities must also conduct regular drills and keep spill containment resources ready. Detailed emergency planning is outlined in NFPA 58 and OSHA’s Process Safety Management standards.

A: The common types of LPG storage systems include above-ground storage tanks, underground storage tanks, and bullet tanks. Above-ground tanks are easier to inspect and maintain but require more space and protective barriers. Underground tanks save surface space and offer better fire protection but require corrosion protection and are harder to inspect. Bullet tanks are horizontal cylindrical tanks typically installed above ground and are designed to withstand high pressures. For detailed standards, refer to the NFPA 58 Liquefied Petroleum Gas Code (https://www.nfpa.org/).

A: LPG storage tanks are typically protected against corrosion using external coatings such as epoxy or polyurethane paint, cathodic protection systems (especially for underground tanks), and regular inspection and maintenance schedules to detect and mitigate corrosion early. Underground tanks often use sacrificial anodes or impressed current cathodic protection. The American Petroleum Institute (API) provides detailed guidelines on corrosion protection (https://www.api.org/).