Skip to main content


Smart, Simple, Unique

  • On/off lever enables the quick shut-off of the gas in emergency situation and eliminates the risk of incomplete closure of the valve.
  • Integrated flow limitation guarantees safe opening at high pressure and assures additional protection in case of accidental opening of the cylinder valve.
  • SMARTOP™ is equipped with the Residual Pressure Valve and Non-Return Valve that prevent contamination due to atmospheric backflow.

Watch how it works:

  • Cylinders left open unintentionally can be easily identified and closed thanks to the on/off lever.  This  enables improved management of your gas consumption and prevents expensive losses and leaks!
  • Thanks to the volume indicator you always know the level of available product in the cylinder and can better manage and reduce your inventory.
  • Your pressure regulators can be connected without any modification to the new SMARTOP™ valve.

Air Liquide’s exclusive SMARTOP™ valve for specialty lab gases and industrial gases in compressed gas cylinders saves time and gas while improving workplace safety.

SMARTOP™ is available with ALPHAGAZ™ brand specialty pure gases and ARCAL™, LASAL™, and ALIGAL™ * brand industrial gases. It works perfectly with all single and two-stage gas pressure regulators from Air Liquide.

Contact Us

If you have a question about any of our products, services or resources, please feel free to call or send us a message.

Our Head Office

24/7 Emergency Hotline

Transport / Industrial Emergency:
1800 812 588
Healthcare / Medical Oxygen Emergency:
1300 36 02 02

Place an order

Customer Care Hotline:
+61 3 9697 9888
Send us an email: