We provide a full suite of engineered tank “breathing” equipment under the Shand & Jurs and Varec brands. These devices protect storage tanks from dangerous pressure and vacuum conditions during normal and emergency operations.
Examples: Shand & Jurs 94020, Varec 2010/2020
Example: Shand & Jurs 94210
These products are essential for atmospheric and low pressure storage tanks across multiple industries.
Installed on fixed roof tanks to prevent structural damage.
Without proper venting:
In a fire:
Every storage tank must be able to breathe. Daily temperature swings, tank filling operations, and pump-out cycles all cause internal pressure to rise and fall. Pressure Relief and Venting Solutions act as the “lungs” of your tank farm—allowing vapor to escape or air to enter only when necessary.
Cognesense offers industry-leading Shand & Jurs and Varec conservation vents, emergency vents, and relief valves. These precision-engineered devices maintain tank integrity, reduce emissions, safeguard personnel, and extend equipment life.
Many vents leak as pressure approaches the set point. Shand & Jurs ExpandaSeal™ technology solves this by using internal pressure to tighten the seal:
Our technology includes:
In fire scenarios, pressure spikes rapidly. Emergency vents:
Cognesense carries forward the trusted legacy of Shand & Jurs, the pioneer of tank venting technology for over 90 years.
We don’t just provide a vent. We provide peace of mind—your tank won’t implode, explode, or leak profits into the atmosphere.