Liquid cooling (Everis)
Everis LQ4
- Selection criteria
- FAQ
- Everis LQ2
- Everis LQ4S
- Everis LQ6
- Data center
- UQD and UQDB couplings (OCP)
- Non-spill couplings for data centers
Everis LQ4 is the CPC quick disconnect with 1/4" flow for liquid cooling of electronics, designed for long periods in the connected state. It disconnects without dripping, even under pressure, and there is no friction on the seal while connected. The body is chrome-plated brass with EPDM or FKM seals, with terminations from G1/4 (BSPP) through NPT and SAE to hose barb, locking hose barb and PTF, rated from vacuum to 8.3 bar.
Everis LQ4 by seal and colour
Ready-made filters for the most common requirements in this series.
- 60 items
- 1 manufacturer
- Net prices plus VAT
Buying guide
How to choose Everis LQ4
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | This series | Note |
|---|---|---|
| Flow | 1/4" | Mid size between LQ2 and LQ6. |
| Termination | G1/4 (BSPP), 1/4 and 3/8 NPT, SAE, 6.4 mm hose barb and locking hose barb, PTF 6.4 x 9.5 mm | Threads for manifolds, barbs and PTF for hose lines. |
| Body | Chrome-plated brass | Low, ergonomic profile. |
| Seal | EPDM, FKM | EPDM for water-glycol, FKM for dielectric coolants. |
| Pressure | Vacuum to 8.3 bar | For higher pressure at smaller flow, see the LQ2. |
| Temperature | -17 to 115 °C | Applies to the EPDM versions. |
| Colour | Blue, red | Tell lines apart at a glance. |
Frequently asked questions
- Which termination is right?
- For manifolds and threaded components choose G1/4, NPT or SAE. On hoses use a hose barb, locking hose barb or a PTF fitting for 6.4 x 9.5 mm tubing.
- How do LQ4 and LQ4S differ?
- Both offer 1/4" flow and are rated to 8.3 bar. The LQ4 has a chrome-plated brass body and an optional FKM seal, while the LQ4S is made of stainless steel 303 for loops with higher corrosion demands.
- Does the LQ4 stay drip-free after long connection times?
- Yes. As the seal sits without friction while connected, the valve still closes without dripping after long periods. Redundant seals add protection against leaks.
- Where is the LQ4 used in a data center?
- On manifolds and hose lines of liquid cooling in servers and racks; the latch makes orientation easy to see on a manifold. Because the coupling disconnects without dripping, components can be swapped without draining the cooling loop.