Type GWI

Schnellanschluss-System GWI

GWI type quick connector system

For pressure and vacuum tests in components with internal threads


The innomatec connec ® GWI type quick connector system seals internal threads or connects them to a control system. Sealing surfaces as well as test pieces are sealed in an axial direction.

Function and operation

The innomatec connec ® GWI type quick connector system is screwed hand-tight to the test piece's connection until the seal sits on the counter piece. The quick connector guarantees a pressure-tight connection up to 340 bar if the system is pressurised. Testing can now take place by feeding the pressurised medium. Release the pressure after testing. The quick connector can be manually unscrewed again without tools.

Sealed system

The innomatec connec ® quick connector system has excellent sealing properties ('helium-tight'). The O-ring's product life is designed to be suitable for series production. O-rings are very easy to change.

Special designs

There are a number of special designs of the connection for specific applications or environmental conditions. The dimensions of the connection can be adapted to the task for specific cases. Also for individual pieces. We look forward to your enquiry. Please use our checklist to do this


We can deliver the following as accessories:

  • assembled screw fittings for connection lines
  • shut-off valves for working fluid
  • blind plugs for working fluid

Typical fields of application

  • G-threads
  • NPT-threads
  • metric threads
  • SAE - threads
  • threads with recess

Technical data


Standard: stainless steel

Operating pressure

-1 bar to 340 bar
The connection must always be screwed on hand-tight.

Working fluid

Compressed air, helium, water.
Other media on request.


10°C to 80°C

Special designs on request.
Special rubber seals for use with food and medical applications. Temperature resistance up to 200 degrees Celsius and resistance to aggressive media.

You will find additional information in the corresponding Data sheet

Standard dimensions, type GWI

Schnellanschluss-System GWI
  • The maximum test pressure can be found in column P2. This is only valid for ideal conditions (sealing surface clean, dry and processed). For higher test pressures or damp/oily surfaces, the quick connector must be secured against slipping.

Find your quick connector!

To find the perfect quick connector for your application, you can use the following checklist

Further detailed information in the data sheet / program Quick Connections (PDF) 

Gladly we advise you personally.
Phone +49 / 6126 / 94 20-0