Pneumatic connection technology
Push-in fittings for pipes PQ
Festo PQ push-in fittings for pipes are designed for rigid plastic and metal pipes with outside diameters of 12, 15, 18 and 22 mm. Unlike tube fittings, the CQ system's gripping teeth engage positively with the pipe wall, providing a pressure-tight, vibration-resistant connection without threaded sleeves. The range includes straight fittings (CQ), T-connectors (CQT), reducers, fluid separators (CQA), blanking plugs (CQC), manifolds (CQD), push-in sleeves (CQH), release tools (CQO) and locking rings (CQSR).
- 20 items
- 1 manufacturer
- Net prices plus VAT
Buying guide
How to choose Push-in fittings for pipes PQ
What matters when choosing: properties, comparison and typical applications.
Technical features
CQ series type overview
| Type | Function | Pipe OD | Connection |
|---|---|---|---|
| CQ-1/2-12H, -18H | Straight fitting | 12, 18 mm | 1/2" BSP |
| CQ-3/8-12H, -15H | Straight fitting | 12, 15 mm | 3/8" BSP |
| CQ-18H-15, CQ-22H-15, CQ-22H-18 | Pipe-to-pipe reducer | 15/18, 15/22, 18/22 mm | Threadless |
| CQT-18 | T-connector | 18 mm | Threadless |
| CQA-22, CQA-28 | Fluid separator | 22, 28 mm | Threadless |
| CQC-12H to CQC-22H | Blanking plug | 12, 15, 18, 22 mm | Threadless |
| CQD-12/15/18/22 | Manifold | 12-22 mm | Threadless |
| CQH-15, -18, -22 | Push-in sleeve | QS 12, 16, 16 mm | Pipe connection |
Typical applications
Typical applications: Compressed air distribution networks with rigid pipework in production halls, vacuum systems with PA or metal pipes, pneumatic ring mains with branch points, and connections between rigid pipe and flexible tubing via push-in sleeves (CQH).








