Railway Compressed air

Full flow couplings for harsh conditions SPI/OS


  • Compressed air connections in the railway sector
  • Body to bogie and interbody pneumatic connections
our Sales Team

Stäubli’s SPI OS full flow couplings are designed to perform under the most demanding conditions, offering outstanding resistance to shock. Fully protected sealing and locking provide an extra measure of security. The couplings are also very easy to handle, with an ergonomic locking sleeve that allows a firm grip even when wearing gloves. For the pneumatic connection between body to bogie and inner-body, SPI OS quick connectors ensure a total safety even under harsh mechanical and environmental conditions as acceleration, vibration and low temperatures.

Technical specifications

  • Nominal diameter DN (mm): 06 and 09
  • Maximum allowable pressure*: 10 bar (145 PSI)


  • Compressed air


  • Mainly stainless steel
  • Sockets equipped with an elastomer protector

Other features

  • Complete connection solutions are also available, including metallic hoses and flexibles designed to meet the requirements of various certifications as EN 45545.

*depending on the model and operating conditions