Whessoe is a leading manufacturer of tank and flame protection products for the oil & gas, petrochemical and chemical industries.  Tank protection is provided through our full line of overpressure protection valves including breather valves, pilot operated relief valves, emergency vents, tank blanketing valves and floating suction units. Flame protection is needed wherever there is the potential to ignite flammable gasses and vapors that will propagate through a system. Whessoe’s complete line of flame arresters protect against these deflagrations and unstable detonations. The Whessoe line of products in combination with Anderson Greenwood tank products (low pressure pilot operated relief valves, blanketing regulators, specialty tank valves) and Varec tank products (vents, flame arresters, regulators) provide a full set of tank protection options to our customers.

Pressure Relief Valves

Figure 4020ATank ProtectionConservation Vents
Figure 4020ATank ProtectionConservation Vents
Figure 4110ATank ProtectionConservation Vents
Figure 4130ATank ProtectionConservation Vents
Figure 4142ATank ProtectionConservation Vents
Figure 4210ATank ProtectionEmergency Vents
Model 400ATank ProtectionFlame Arresters
Model 500ATank ProtectionFlame Arresters
Model 500BTank ProtectionFlame Arresters
Model 500ETank ProtectionFlame Arresters
Model 600ATank ProtectionFlame Arresters
Model FSUTank ProtectionFloating Suctions
Series 4301Tank ProtectionFlame Arresters
Series 4301A/4319ATank ProtectionFlame Arresters
Series 5031/5032Tank Protection
Series 5031/5032Tank ProtectionTank Accessories
Series 5071A/5072ATank ProtectionTank Accessories