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Active Vacuum Unit & Valves


Active Vacuum Unit

The vacuum unit is designed to generate an elevated vacuum between user's liner and the socket to prevent pistoning movement and grip the stump firmly. To do this, there should be a sealed environment between user's liner and the socket. Once the environment is sealed, which is compressed and released during normal walking, the vacuum unit draws air from the socket through one-way valves and evacuates it through the pump. So vacuum unit, discharges the air in this sealed environment on every step of user. After multiple steps of the user, 15 in.Hg ( around 0.5 bar ) is created in the sealed socket environment.


Discharging the air between the socket and the liner on every step of user Prevents pistoning and keeps the prosthesis firmly on user. Absorbs high reaction forces of the ground ( Absorbs impact forces ) Increases comfort of the user Has free rotating connector to easily adjust air suction hose


  • Auto-expulsion valve with push button for suction release.
  • The valve expels air under positive pressure when the stump entering into the socket
  • Designed to be used with all suction suspension systems.
  • Recommended for TF (Transfemoral) Users.
  • Product package includes the dummy kit.

Accessories (Included in package)

Automatic Flat Rubber Valve

Automatic Flat Rubber Valve (VAC-200) Automatic one way valve With thump flap

Clutch Lock

  • Safe and easy locking mechanism
  • Pin design has worm thread which makes smooth connection.
  • Pyramid connection and pyramid receiver connections are available
  • Each product contains “SL-Kit” as dummy kit for the lamination.

Clutch Lock – E73

  • Light and durable aluminum bodies
  • Pin design has worm thread which makes smooth connection.
  • Rotation-secured lamination disk
  • 4-hole connection to the lamination disk allows to change the complete locking unit in case of need of replacement.
  • Dummies are included in the package

Clutch Lock – E74

  • Totally Aluminum body with smooth gear mechanism
  • Best option for patients with contracted joint or an unusual alignment line.
  • Can be integrated into the socket during the lamination or thermoplastic process.
  • There is no weight limit because the lock is not a weight bearing component
  • Steel inner ring guards the pin entrance.
  • Dummy kit is included in the package.



Cylindrical Shuttle Lock – E75

  • E75 is a cylindrical type of lock, made of high-strength Nylon
  • Designed for direct mounting with a 4-hole adapter
  • Very light-weight structure
  • Includes two pins in package


  • Expulsion valve with a button, provides one-way air discharge.
  • Recommended for both TT and TF users.
  • Designed to be used with all suction suspension systems.
  • Body is made by anodized aluminum.

One-way Valve (VAC-300)

  • This valve enables the expulsion of excessive air out of the socket during stance phase and effectively prevents air from flowing in during swing phase
  • Consisting of: Valve body of anodized aluminum Exchangeable sealing lip valve Counter nut with o-ring Foam filter insert