Convoluted or Corrugated Metal Hose

Unaflex® manufactures corrugated and convoluted metal hose with and without external braiding with quality as a priority. We offer a complete line of annular metal hose in many different sizes, alloys and configurations. Our Matchless metal hose is ideal for absorbing vibration, misalignment correction, piping thermal expansion or contraction, and protecting equipment from excess motion. Including stainless steel braiding enhances the hose for high pressures and also attenuates vibration. Each annular corrugation is a separate element engineered to impart optimal flexibility for each size of hose that we offer.


Metal Hose Offerings

Matchless Metal Hose Style S (321 stainless)

  • SSO Unbraided Hose
  • SS1 Single Braided Hose
  • SS2 Double Braided Hose

Construction Details

  • Type 321 Stainless Steel Butt Welded Tube
  • Annular Close Pitch Corrugations
  • Type 304 Stainless Steel Braid

Types of Matchless Metal Hose and Available Other Alloys

Close pitch and open pitch configurations refer to the size of the convolutions or corrugations. A close pitch is a tighter corrugation that allows for more flexibility. an open pitch configuration will retain more of the rigidity of the alloy in use

Manufactured from 321 Stainless in a close pitch configuration

  • SSO-Unbraided
  • SS1-Single Braid
  • SS2-Double Braid

Manufactured from 316 Stainless in a close pitch configuration

  • SQO-Unbraided
  • SQ1-Single Braid
  • SQ2-Double Braid

Manufactured from Monel® 400 in a close pitch configuration

  • SMO-Unbraided
  • SM1-Single Braid
  • SM2-Double Braid

Please contact our sales professionals for other hose alloys that may be required for special service applications. If a hose application requires a less flexible product UNAFLEX® can supply it in an open pitch configuration.