Refrigerated and Cryogenic Storage

Reliable Venting and Flame Protection for Refrigerated and Cryogenic Tank Applications

Ensuring the safety of refrigerated and cryogenic storage tanks is critical due to extreme temperatures and the specific physical properties of stored substances. These operating conditions require carefully balanced pressure and vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. protection, along with effective safeguards against flame transmission in connected systems.
The application concepts shown represent typical configurations. Individual safety concepts are developed in close coordination with customers, taking into account applicable standards, regulatory requirements, and site-specific operating conditions.

Protection of Ammonia Storage Tanks

In refrigerated liquid ammonia service, rapid thermal shifts and operating transients can generate both overpressure and vacuum conditions. This application concept provides controlled pressure relief and vacuum protection, supported by isolation for maintenance Maintenance Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order. and operational safety.
Detonation protection installed in the connected line reduces the risk of flame transmission, protecting both the tank and the vapor handling system.

Protection of Propylene Storage Tanks

In refrigerated liquid propylene service, rapid thermal shifts, high vapor pressure, and operating transients can create both overpressure and vacuum conditions. This application concept provides controlled pressure relief and responsive vacuum protection, supplemented by dedicated emergency relief capacity for abnormal events. Detonation protection in the connected line helps prevent flame transmission through piping. Where required, an inert gas Inert gas Non-flammable gas which will not support combustion and does not react to produce a flammable gas. blanketing function helps stabilize the vapor space and reduce the likelihood of a flammable atmosphere, supporting safe and compliant operation.

Protection of LNG (Liquefied Natural Gas) Storage Tanks

Cryogenic LNG storage involves rapid temperature changes and operating transients that demand reliable management of both overpressure and vacuum conditions. This application concept provides controlled pressure relief paired with high-capacity vacuum protection to maintain stable tank conditions during normal operation and upset events.
Detonation protection in the connected line helps prevent flame transmission through piping, supporting tank integrity and safe, compliant LNG storage.

Protection of LPG (Liquefied Petroleum Gas) Storage Tanks

Refrigerated LPG storage requires effective control of pressure and vacuum conditions, combined with safeguards against flame transmission. The application concept incorporates Pressure and Vacuum Relief Valves Pressure and vacuum relief valve A pressure and vacuum relief valve is a pressure equalization valve for impermissible pressure and vacuum in a closed system. , In-Tank Valves, and in-line Detonation Flame Arresters to support stable operation and protect the tank during both routine service and abnormal conditions.

Protection of LIN LOX LAR Storage Tanks

In LIN, LOX, and LAR cryogenic storage service, maintaining stable tank conditions is essential due to extremely low temperatures and the potential for rapid pressure changes during operation. This application concept combines controlled pressure and vacuum relief with dedicated emergency pressure relief to protect the tank during normal breathing and upset events.
An In-Tank Valve In-tank valve An in-tank valve is located inside a storage tank and is open under normal working conditions. seals off discharge lines in the event of an accident or emergency, helping preserve tank integrity and ensure compliant cryogenic storage.

Highlights

Maintains MAWP/MAWV
Maximum Allowable Working Pressure / Vacuum
Reduced product losses
and emissions
Supports safe low-temperature operation 
with documented compliance
Process opimization
support at FEED stage

We would like to express our gratitude to the PROTEGO® team for the extraordinary support provided to us in identifying and resolving the trouble of a premature opening of one of our ammonia tank safety valves. Your flexibility in dealing with the subject, the displayed sense of urgency, and immediate and professional hands-on approach are exceptional and clearly distinguish you from other OEMs in the industry. 

Head of Operations & Maintenance & Engineering Manager

Linde Jubail Industrial Gases Factory LLC

Contact CSR Department 

Talk to a PROTEGO® engineer to request guidance for your vessel or terminal loading application

Picture of Mrs. Auris-Nadine Hillen
Mrs. Auris-Nadine Hillen

CSR Department

+49 (0)5307 809 108