LQC couplings

- Screw-to-connect coupling for data center liquid cooling
- 19 mm nominal flow diameter for high coolant flow
- Double O-ring sealing for increased leak protection
CEJN OCP LQC (Large Quick Connector) is a screw-to-connect coupling solution developed for liquid cooling systems in data centers. LQC is designed particularly for Coolant Distribution Unit (CDU) connections and was developed within the Open Compute Project (OCP) initiative.
The screw-to-connect locking mechanism enables safe and easy connection at working pressures up to 3.45 bar. Double O-ring sealing provides additional protection against leakage. LQC is an open standard, allowing products from different manufacturers that comply with the LQC standard to be interconnected.
Applications: Data center liquid cooling systems and Coolant Distribution Unit (CDU) connections.
For more information about our products, call us at 010 778 1400 or email us at info@pneumacon.fi.
Technical data
| Nominal flow diameter | 19 mm |
| Max working pressure | 12 bar |
| Min burst pressure | 48 bar (696.18 PSI) |
| Temperature range | −20 °C – +70 °C |
| Main material | Stainless steel (AISI 303) |
| Seal material | EPDM |
More tools are featured in tool catalog.
Technical data:
| Coupling (Sockets) | Part No. | Connection | Color code | Seal material | Length | Diameter |
| LQC DN20 | 10 153 1290 | G 1″ | – | EPDM | 94.1 mm | 51.7 mm |
| LQC DN20 | 10 153 1291 | G 1″ | Red | EPDM | 94.1 mm | 51.7 mm |
| LQC DN20 | 10 153 1293 | G 1″ | Blue | EPDM | 94.1 mm | 51.7 mm |
| LQC DN20 | 10 153 1490 | NPT 1″ | – | EPDM | 94.1 mm | 51.7 mm |
| LQC DN20 | 10 153 1491 | NPT 1″ | Red | EPDM | 94.1 mm | 51.7 mm |
| LQC DN20 | 10 153 1493 | NPT 1″ | Blue | EPDM | 94.1 mm | 51.7 mm |
| Nipple (Plug) | Part No. | Connection | Color code | Seal material | Length | Diameter |
| LQC DN20 | 10 153 6290 | G 1″ | – | EPDM | 106.7 mm | 57.8 mm |
| LQC DN20 | 10 153 6291 | G 1″ | Red | EPDM | 106.7 mm | 57.8 mm |
| LQC DN20 | 10 153 6293 | G 1″ | Blue | EPDM | 106.7 mm | 57.8 mm |
| LQC DN20 | 10 153 6490 | NPT 1″ | – | EPDM | 106.7 mm | 57.8 mm |
| LQC DN20 | 10 153 6491 | NPT 1″ | Red | EPDM | 106.7 mm | 57.8 mm |
| LQC DN20 | 10 153 6493 | NPT 1″ | Blue | EPDM | 106.7 mm | 57.8 mm |



