Pneumatic Fittings
Push-in, nut-locking and hose-barb connectors for building pneumatic air lines. Match the connection method to the tube or hose, then specify diameter, thread and layout.
Find the component
for your required function.
Push-in Fittings
One-touch connectors for PU and PA tubing, from straight and elbow fittings to tees, bulkheads and flow-control components. Start with tube outside diameter and the mating port thread.
Review series
Rapid Nut-Locking Fittings
Metal fittings with a nut-locking connection for tubing retention on moving or vibration-exposed equipment. Confirm both tube inside and outside diameters for the selected connector.
Review series
Brass Hose Barb Fittings
Machined brass barb connectors for flexible rubber, PVC and reinforced hose. Select by hose inside diameter, connector shape and the clamping arrangement.
Review seriesCompare the selection routes.
Start with the component function, then open the category to compare individual series and technical data.
| Category | Series examples | Selection focus |
|---|---|---|
| Push-in Fittings | DHVFF Series / DLSA Series / DPG Series | Tube outside diameter; Tube material; Thread standard and size |
| Rapid Nut-Locking Fittings | KNPC Series / KNPCF Series / KNPL Series | Tube inside and outside diameter; Tube material; Thread standard and size |
| Brass Hose Barb Fittings | BTPC Series / BTPCF Series / BTPE Series | Hose inside diameter; Hose material and reinforcement; Thread standard and size |
Details that guide selection.
Use the category pages to narrow the series, then confirm these requirements for the selected configuration.
- Tube or hose material
- Include this detail in the requirement brief so the selected configuration can be reviewed.
- Tube OD or hose ID
- Include this detail in the requirement brief so the selected configuration can be reviewed.
- Connection method
- Specify the thread standard, nominal size and mating connection.
- Thread standard and size
- Specify the thread standard, nominal size and mating connection.
- Connector shape
- Include this detail in the requirement brief so the selected configuration can be reviewed.
- Operating environment
- Include this detail in the requirement brief so the selected configuration can be reviewed.
Before you select.
How do push-in, nut-locking and hose-barb connections differ?
Push-in models connect tubing through a release-collar fitting. Nut-locking models use a retaining nut, while hose-barb models use a barbed hose interface. Select the connection system together with the tube or hose specification.
Does matching the nominal thread size guarantee fit?
Record the complete thread designation and mating-port drawing. Check the specified thread form and sealing arrangement rather than relying on a nominal size alone.
Which dimensions are needed for an elbow or branch fitting?
Include the tube dimensions, port thread, number and direction of connections, and available installation space. Review the actual fitting shape and mounting access.
Prepare a fittings requirement.
Include the series under consideration, installation details and operating conditions.