CPC
Liquid cooling (Everis)
- Selection criteria
- FAQ
- Non-spill couplings
- Standard couplings
- Multi-tube connectors
- Data center
- UQD and UQDB couplings (OCP)
- Non-spill couplings for data centers
Everis is the CPC range for liquid cooling of electronics: non-spill quick disconnects that can be separated under pressure and still close cleanly after long periods in the connected state. The LQ series are connected by hand and click audibly into place, while the BLQ series and UQDB are blind mate designs that engage axially when a sled is pushed into the rack. Flow sizes run from 1/8" to 1/2", with rated pressure up to 6.9, 8.3 or 13.8 bar depending on the series. Bodies come in chrome-plated brass, stainless steel and anodized aluminium, seals in EPDM for water-glycol or FKM for dielectric coolants.
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The key properties as ready-made filters in this category.
Buying guide
How to choose Liquid cooling (Everis)
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | Available | Note |
|---|---|---|
| Design | Hand-connected with latch (LQ), blind mate (BLQ, UQDB) | Choose blind mate when sleds are pushed into the rack without reaching the coupling. |
| Flow size | 1/8" (LQ2, BLQ2), 1/4" (LQ4, LQ4S), 3/8" (LQ6, BLQ6), 1/2" (LQ8) | A larger size means less pressure drop at the same flow rate. |
| Body | Chrome-plated brass, stainless steel 303, stainless steel 1.4301, anodized aluminium | Stainless steel for higher corrosion resistance, aluminium on the BLQ6. |
| Seal | EPDM, FKM | EPDM for water-glycol, FKM for dielectric coolants. |
| Pressure | up to 6.9, 8.3 or 13.8 bar depending on series | BLQ2 and LQ2 are rated up to 13.8 bar. |
| Temperature | -17 to 115 °C, some versions 2 to 75 °C or 5 to 65 °C | The range is listed on each product data sheet. |
| Termination | G thread (BSPP), SAE, NPT, PTF, hose barb, locking hose barb | Locking hose barbs hold reinforced tubing without a clamp. |
| Colour | Blue, red | Colour coding tells two lines apart at a glance. |
Frequently asked questions
- How do LQ and BLQ couplings differ?
- LQ couplings are connected by hand and secured with a latch that clicks audibly. BLQ couplings are blind mate designs: body and insert are fixed to the sled and the rack and engage axially as the sled slides in, tolerating some misalignment.
- Can the couplings be disconnected under pressure?
- Yes. All Everis series are non-spill and can be disconnected under pressure. The valves are built for long periods in the connected state and still close cleanly afterwards.
- Which seal suits my coolant?
- EPDM is the choice for water-glycol mixtures. FKM is intended for dielectric coolants and oils and is offered on LQ2, LQ4 and LQ6.
- Where are Everis couplings used in a data center?
- On rack manifolds, server sleds and in the hose lines of liquid cooling systems. Because they disconnect without dripping, components can be swapped without draining the loop.
- What are the blue and red colours for?
- Colour coding makes two lines easy to tell apart, for example supply and return on a manifold.