Quick-release coupling

We distribute easy-to-handle ISO compliant vacuum flanges.
They are referred to as Quick-release Couplings by ISO. Four types of small flanges are standardized with diameters: 10, 16, 25, 40.
None of them use any bolt. They are functional quick-release flanges with clamps. Various connection elements using this flange are also available.



  1. Can be installed in any direction (functions the same as a rotatable flange).
  2. Al alloy coated with Ni makes the clamp highly corrosion-resistant.
  3. O-Ring is swappable depending on the heating temperature. (Neoprene:70℃, Viton:150℃)
    Leakage is 1.3×10-9Pa·㎥/sec or less. (Except gas permeation of O-Ring)