Skip to main content
Air Liquide Medical Systems

Expert division
for medical devices

Air Liquide Medical Systems

Expert division
for medical devices


Valve-box and pigtails

Safe connection from the cylinder to the gas station

Valve-boxes are essential components for the creation of supply manifolds for the high pressure gas station. This device, combined with a pigtail, is used to connect the cylinder to the gas station. Pigtails are the final connectors of the high pressure gas station. They supply the gas network by connecting the valve-boxes with the cylinders at high pressure.

The valve-box

  • Choice of confi guration, 1 or 2 cylinders connected
  • Kit assembly, possibility of connecting several valve-boxes
  • Adaptable to a main or backup manifold
High level of safety
  • Automatic regulation of the manifold pressure thanks to its controlled pressure reduction system
  • No risk of pigtail fl apping when changing the cylinders thanks to its non return valve
  • Limited risk of adiabatic compression thanks to its “zero plastic” design
  • Adapts perfectly to all medical gases
  • Equalisation of manifold pressure, for a real visualisation of the pressure on the gauges
  • Facilitated leak detection; the measured pressure matches the overall pressure of the manifold

The pigtail

Simplified use
  • Simply tighten/loosen by hand to replace cylinders
  • Modifiable mounting direction, from the right or from the left
  • Compact
Guaranteed safety
  • Connected by hand, impossible to disconnect under pressure
  • Pigtail sealed with the valve-box
  • Unbreakable connection with induction brazing
  • Longer life (made of stainless steel)
  • No damage to the connections on the cylinder side, thanks to tool-free connection

Devices for medical gas pipeline systems catalogue

PDF - 22.8 MB


  • Valve-box
  • Controlling high pressure
  • Adapts perfectly to all medical gases
  • Ideal configuration, kit assembly
  • Pressure equalisation and self-regulation
  • Pigtail
  • Essential to the Danube gas station
  • Safer supply to the network
  • Tightened/loosened by hand, simple and no risk of damaging the connectors
  • Greater modularity thanks to connection from the left or from the right
  • 01


    Innovation is central to Air Liquide Medical Systems’ products. Our priority is to contribute to the quality of care by optimizing patient comfort and simplifying the use of our products.

  • 02


    Air Liquide Medical Systems has a 40 year history of listening to its customers and working with healthcare professionals. We create solutions that keep up with the changes in medical practice.

  • 03


    Safety, Quality and Environment: we design our products based on ensuring safety and quality in respect of patients, users and employees, and regulatory compliance. Air Liquide Medical Systems is committed to reduce its environmental impact

  • 04


    Local and responsive Whatever the situation, you can always count on the expertise of our hotline and our local technical teams. They will help you ensure the safety of your patients and get the best performance out of your equipment.

  • 05

    Made In France

    Most of our products are designed and manufactured by Air Liquide Medical Systems in France

Related Products