Operational Integrity and Tank Protection

Coordinated protection for fixed-roof tank operation

Fixed-roof tanks handling flammable liquids require coordinated protection across normal breathing, filling and emptying, and emergency scenarios.

An engineered approach combines dedicated pressure and vacuum protection with controlled vapor displacement and explosion prevention measures. This supports stable tank conditions during routine operation while maintaining protection margins when process conditions deviate from normal ranges. 
Typical configurations integrate pressure relief valves and vacuum relief valves with or without integrated flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. on the tank roof, supported by in-line detonation flame arresters Detonation flame arrester Flame arrester designed to prevent the transmission of a detonation. positioned to protect vent and vapor paths. Where required, inert gas Inert gas Non-flammable gas which will not support combustion and does not react to produce a flammable gas. blanketing systems are used to further control the vapor space and reduce ignition risk.

Engineered venting and explosion safeguards

Optimal protection for fixed-roof storage tanks containing flammable liquids relies on balancing normal tank breathing with high-capacity emergency relief.

Pressure and vacuum valves with integrated flame arresters Flame Arresters A flame arrester, deflagration arrester, or flame trap is a device or form of construction that will allow free passage of a gas or gaseous mixture but will interrupt or prevent the passage of flame. are used to maintain stable internal conditions during atmospheric breathing, while emergency vent relief valves provide additional capacity during abnormal pressure events.
End-of-line and in-line detonation flame arresters are applied on vent lines and liquid transfer connections to safeguard against flame transmission into the tank. These devices are designed for stable detonations and deflagrations, with right-angle configurations, shock absorbers, and unidirectional flow designs where applicable.

Advanced safeguarding measures to maintain integrity and safety

Optimal protection for fixed-roof storage tanks containing flammable liquids is vital for safety and operational integrity.

Our advanced solutions integrate pressure and vacuum control, vapor management, and safeguards against flame propagation, helping stabilize tank conditions and reduce the likelihood of explosion-related incidents.

Protection of Fixed-Roof Storage Tanks for Non-Flammable Liquids.

For tanks storing non-flammable liquids, reliable pressure and vacuum control remains essential to preserve structural integrity and operational reliability.

In these applications, protection systems focus on managing normal breathing and emergency pressure relief without the need for flame arrestor components.
Typical arrangements include pressure and vacuum valves for normal operation, supplemented by emergency vent relief valves to protect the tank during abnormal pressure or vacuum conditions.

Highlights