Standard Vacuum Insulated tank
Industrial gases such as oxygen, nitrogen and argon are delivered to customers in liquid form at cryogenic temperatures and stored by using Delvar Afzar Standard vacuum insulated tanks.
The vacuum-insulated double wall tanks consist of two concentric vessels, an austenitic steel inner tank and an outer jacket in carbon steel with an anti-corrosion primer and a special en-vironmentally friendly top coat. The interspaces between inner and outer tank is filled with insulating powder (perlite) and evacuated. An adsorbent is also added to maintain the vacuum in the insulation interspaces.
The standard tanks come in gross nominal wa¬ter capacities from 3,160 litre to 61,620 litre. The maximum allowable working pressure for these tanks is 18, 22 or 36 bar gauge for design temperatures ranking from -196°C up to 20°C. All standard tanks have vertical configuration, requiring little space for installation.
The pressure vessels are manufactured and tested in accordance with the Pressure Equip-ment Directive EU (Directive 97/23/EC) and EN13458.
The operating pressure may be set up to 90 % of the maximum allowable working pressure and is automatically maintained constant by the regulator and pressure build-up vaporizer fitted to the tank.
The vacuum-insulated double wall tanks consist of two concentric vessels, an austenitic steel inner tank and an outer jacket in carbon steel with an anti-corrosion primer and a special en-vironmentally friendly top coat. The interspaces between inner and outer tank is filled with insulating powder (perlite) and evacuated. An adsorbent is also added to maintain the vacuum in the insulation interspaces.
The standard tanks come in gross nominal wa¬ter capacities from 3,160 litre to 61,620 litre. The maximum allowable working pressure for these tanks is 18, 22 or 36 bar gauge for design temperatures ranking from -196°C up to 20°C. All standard tanks have vertical configuration, requiring little space for installation.
The pressure vessels are manufactured and tested in accordance with the Pressure Equip-ment Directive EU (Directive 97/23/EC) and EN13458.
The operating pressure may be set up to 90 % of the maximum allowable working pressure and is automatically maintained constant by the regulator and pressure build-up vaporizer fitted to the tank.