FLEXAquick® RQK Flexible Union Fitting
Flexible union fittings with IP66 protection for conduit-to-conduit connections
RQK flexible union fittings use a flexible TPE rubber body to create simple inline conduit-to-conduit connections for ROHRflex® corrugated plastic conduits. Instead of the rigid FLEXAquick® quick-connect locking system used in the RQK-PA family, the RQK fitting uses internal gripping ribs to hold the conduit corrugations in place, providing a secure and economical inline connection.
Designed for use with ROHRflex® corrugated plastic conduits, RQK fittings support machine building, automation, OEM wire and cable harnessing, transportation equipment, and general industrial installations where conduit runs must be extended, joined, or repaired with a flexible inline connection.
Select the correct fitting by matching the conduit outside diameters on both sides and confirming the required inline connection layout for the installation.
- Material: TPE Rubber
- Temperature: -40°C to +120°C
- Ingress Protection: IP66





FLEXAquick® RQK flexible union fittings for ROHRflex® corrugated plastic conduits
Image | Part Number | Colour | OD1 (mm) | OD2 (mm) | Quantity | Product Details | Add to Cart |
|---|---|---|---|---|---|---|---|
| Old: 5020.066.201 | Black | 21. 2 | 21. 2 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.202 | Black | 28. 5 | 28. 5 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.203 | Black | 34. 5 | 34. 5 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.204 | Black | 42. 5 | 42. 5 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.205 | Black | 54. 5 | 54. 5 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.207 | Black | 13. 0 | 13. 0 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.208 | Black | 15. 8 | 15. 8 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.209 | Black | 18. 5 | 18. 5 | Max: 100000 Min: 1 Step: 1 | |||
| Old: 5020.066.210 | Black | 10. 0 | 10. 0 | Max: 100000 Min: 1 Step: 1 |
How to Choose the Right RQK Fitting
Choose the correct RQK fitting by matching the conduit sizes on both sides and confirming the required inline connection.
• Match the required OD1 conduit size
• Match the required OD2 conduit size
• Confirm the required inline connection layout
• Confirm ROHRflex® conduit suitability
• Confirm the required protection level
• Use this fitting family where flexible conduit-to-conduit joining and practical inline conduit extension are required.
Frequently Asked Questions about RQK Fittings
What is the RQK family used for?
RQK fittings are used to join two ROHRflex® corrugated plastic conduit sections inline, allowing conduit runs to be extended, connected, or repaired while maintaining secure conduit retention.
How does the RQK fitting differ from the rigid RQK-PA version?
RQK fittings use a flexible TPE rubber body with internal gripping ribs that engage the conduit corrugations to provide a simple inline connection. The rigid RQK-PA version uses the FLEXAquick® quick-connect system on both sides for more repeatable mechanical retention and controlled removal.
Do RQK fittings require tools for installation?
No. RQK fittings are installed by pushing compatible conduit into both sides of the fitting body, where internal ribs grip the conduit corrugations without additional hand tools.
What ingress protection rating does RQK provide?
RQK fittings provide IP66 protection when installed correctly with compatible ROHRflex® corrugated plastic conduits matched to the correct outside diameters.
Are RQK fittings compatible with ROHRflex® conduits?
Yes. RQK fittings are designed for use with ROHRflex® corrugated plastic conduits matched to the correct outside diameters on both sides of the fitting.
Are RQK fittings suitable for industrial applications?
Yes. RQK fittings are suitable for machine building, automation, OEM wire and cable harnessing, transportation equipment, and general industrial installations requiring economical inline conduit joining and extension.
Need help selecting the right RQK fitting?
Contact IBIS for help matching conduit diameters, inline connection requirements, protection requirement, and ROHRflex® conduit compatibility for your application.
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