Choose a different country or region to see the content specific to your location

Big Lock Tubing

Big-Lock Tubing

Compressed Air Piping

Simply stated - there is no equal. Big-Lock from Gardner Denver has taken large diameter piping systems to a new level. 

The secret of the Big-Lock system is twofold. First is the tubing design. Big-Lock is manufactured from marine grade aluminum that affords it the highest level of protection against contaminants. Secondly, Big-Lock incorporates the world's most highly accepted groove fitting design.



  • Manufactured from marine-grade aluminum that prevents rust and system deterioration
  • All metal system
  • Utilizes the world's most highly accepted grooved fitting design
  • Ease of installation
  • High flow rates / low pressure losses
  • Ten times ligher than steel without compromising any structural strength



  • Structurally as strong as carbon steel
  • System flexibility means simple modifications and/or additions
  • Marine grade aluminum construction prevents rust and system deterioration
  • Zero corrosion eliminates expensive production downtime and dramatically reduces maintenance costs
  • Easily switch from Big-Lock to Quick-Lock to provide the Total Piping Solution