Data Center Liquid
Cooling Hose
Liquid cooling hose for server and rack cooling loops, with a low bend radius for routing in compact equipment spaces.
Product Photos
Real photos of our liquid cooling hose, couplings and stainless steel assemblies — all from our own production.
Built for Server & Rack Cooling Loops
As AI compute density rises, air cooling is reaching its limits — liquid cooling has become the standard for new data centers. We manufacture the hose that carries the coolant.
Server Cooling Hose
For coolant distribution inside server chassis and CDU loops. Flexible, low bend radius, stable at working temperature.
Rack Cooling Hose
Manifold-to-rack connections. Custom lengths available so each rack gets the exact length it needs.
Coolant Transfer Hose
For CDU to manifold and facility-side loops. Choose the size and fitting to match your system.
Custom Lengths & Assemblies
Tell us the loop layout — we cut to length and fit the connectors, so it is plug-and-play on site.
YB800 — Data Center Liquid Cooling Hose Specifications
Inner Tube: Black EPDM synthetic rubber · Reinforcement: 1 or 2 layers of synthetic fiber braid · Cover: Black EPDM synthetic rubber with weather, abrasion, ozone resistance and V0 flame retardancy · Working Temperature: −40°C ~ +120°C (−40℉ ~ +248℉)
| Specification (inch) |
Hose Inner Diameter I.D (mm) |
Hose Outer Diameter O.D (mm) |
Max Working Pressure Max.W.P (MPa) |
Min Burst Pressure Min.B.P (MPa) |
Min Bending Radius Min.B.R (mm) |
Reference Weight W.T (kg/m) |
||
|---|---|---|---|---|---|---|---|---|
| min | max | min | max | MPa | MPa | mm | kg/m | |
| 1/4" | 6.1 | 7.2 | 11.6 | 12.6 | 1.38 | 5.5 | 24.5 | 0.13 |
| 5/16" | 7.7 | 8.3 | 14.5 | 15.5 | 1.38 | 5.5 | 31.5 | 0.18 |
| 3/8" | 9.5 | 10.3 | 15.4 | 16.4 | 1.38 | 5.5 | 37 | 0.19 |
| 1/2" | 12.5 | 13.3 | 19.7 | 20.7 | 1 | 1 | 69 | 0.25 |
| 5/8" | 15.8 | 16.6 | 22.5 | 23.7 | 1 | 1 | 88 | 0.30 |
| 3/4" | 18.8 | 19.6 | 26.4 | 27.6 | 1 | 1 | 113 | 0.35 |
| 1" | 25.2 | 26.2 | 33.6 | 34.8 | 1 | 1 | 143 | 0.52 |
| 1 1/4" | 31.8 | 32.8 | 43 | 44.6 | 1 | 1 | 195 | 0.70 |
The low minimum bending radius is what makes this hose suitable for tight routing inside dense equipment cabinets. Need a size or length not listed? Tell us the loop layout — we cut to length and fit the connectors.
Quick Connect Couplings for Liquid Cooling Loops
Complete the loop with our matching quick-connect couplings — so the hose and the connector arrive as one working assembly, not two separate parts you have to match yourself. UQD / UQDB compatible (our own QC series — not OCP-certified UQD parts), EPDM seal, blind-plug and standard versions available.
Coupling Sizes — Matched to Hose I.D.
| Model | Hose I.D. (inch) | Seal | A (mm) | B (mm) | C (mm) | D (mm) | Hose I.D. (mm) |
|---|---|---|---|---|---|---|---|
| QC-02 | 1/4 | EPDM | 46.2 | 19.0 | 15.5 | 23.0 | 14.0 |
| QC-04 | 3/8 | EPDM | 49.5 | 23.7 | 9.0 | 24.6 | 18.0 |
| QC-06 | 1/2 | EPDM | 61.1 | 25.8 | 24.0 | 31.7 | 22.0 |
| QC-08 | 5/8 | EPDM | 68.4 | 39.0 | 30.0 | 35.0 | 27.0 |
Coupling Sizes — BSP Thread
| Model | BSP (inch) | Seal | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) |
|---|---|---|---|---|---|---|---|---|
| QC-02B | 1/8 | EPDM | 6.65 | 17.32 | 8.70 | 8.00 | 30.40 | 15.00 |
| QC-04B | 3/8 | EPDM | 11.07 | 25.40 | 9.80 | 11.20 | 37.90 | 22.00 |
| QC-06B | 3/8 | EPDM | 14.30 | 25.40 | 10.00 | 11.20 | 41.60 | 22.00 |
| QC-08B | 1/2 | EPDM | 17.48 | 34.64 | 12.00 | 14.50 | 47.60 | 30.00 |
Tell us the hose size and the thread you need — we supply the coupling to match, and can ship hose + coupling as a finished assembly. Other thread types (ORB, metric) and blind-plug versions are available on request.
Stainless Steel Rigid Pipe & Corrugated Hose Assembly
For the fixed runs inside the cabinet or along the facility pipework, we also supply stainless steel rigid pipe and corrugated hose assemblies — so one supplier covers both the flexible and the rigid part of the loop.
Where It Is Used
Built for the liquid cooling loops that AI and cloud data centers depend on — where air cooling has reached its limit.
Server Chassis Cooling
Coolant distribution inside the server and cold-plate loops.
Rack & Manifold Connections
Manifold-to-rack runs, cut to the exact length each rack needs.
CDU & Facility Loops
Coolant transfer between CDU, manifold and facility-side pipework.
AI Compute & Edge Cabinets
High-density cabinets and edge sites where space is tight and bends must be tight too.
Why Choose YIBO
Factory-direct manufacturer in Luohe, Henan, China. Own laboratory, full inspection equipment, ISO 9001 quality system.
Our Factory — Why It Matters to You
We are not a trading company. Every hose we sell is produced on our own lines in Luohe, Henan — which is why we can hold the price, the quality and the delivery date.
Own Production Lines
Wire braiding and steel wire spiral lines in-house — no middleman between you and the machine.
Own Laboratory
High-standard lab and full inspection equipment — pressure, burst and bend testing before shipment.
ISO 9001 quality system · 70+ patents (hydraulic range)
Inspection points across raw material purchasing, production and warehousing. R&D team with 70+ patents.
30+ Countries Served
Proven export experience — we handle the documents, the packing and the shipping schedule.
Workshop & Equipment
Real photos from our plant — braiding and spiral lines, testing rigs and heavy equipment. Drag or use the arrows to see more.
Certifications & Honors
State-recognized high-tech enterprise with its own laboratory and quality system.
Inside Our Factory
Own production lines, own laboratory, full inspection equipment — see it before you order.
How It Works
Four simple steps from your first message to the goods at your port.
Send Your Inquiry
Tell us the hose type, size and quantity — or just describe what you need.
Quote in 12 Hours
You get price, lead time and shipping options within 12 hours.
Free Samples
Test the quality before you commit to a bulk order.
Production & Delivery
Around 20 days production, then shipped to your port.
Why Buyers Choose YIBO
Four things that make the difference when you compare suppliers.
Free Samples First
Test the quality before you commit. Sample is free — courier cost can be deducted from your bulk order.
MOQ from 100 m
Start small to test the market. Large volume orders and OEM / private label are equally supported.
Lead Time ~20 Days
Standard items may ship faster from stock. We confirm the schedule with the quote.
Factory Direct, No Middleman
Made in our own plant in Luohe, China — ISO 9001 system, 70+ patents (hydraulic range), in-house laboratory.
Designing the Loop: What the Hose Has to Survive
A liquid cooling hose is not judged on pressure. It is judged on whether it keeps a sealed loop sealed for the ten years a rack is expected to run. The construction below is published size by size so the loop can be designed around real figures rather than nominal ones.
Pressure Is the Easy Part
Bores run 6.1–32.8 mm with outside diameters 11.6–44.6 mm. Working pressure is published at 13.8 bar maximum with a minimum burst of 55 bar — nothing exotic, because a cooling loop is a low-pressure system. What matters is that the rating holds across the full temperature range, not just at ambient.
Bend Radius Decides the Routing
Inside a rack the hose has to turn in a very small space, and the minimum bend radius is what makes that possible or impossible. It is published per size — 24.5 mm at the small end of the range — so the routing can be checked before the cabinet is built rather than discovered when the hoses arrive.
Mass and Load on the Coupling
Reference weight runs 0.13–0.7 kg/m. In a rack the hose is usually supported over a short span, so the mass is not a handling problem — but it is a load on the quick coupling. That is one reason the smaller bores dominate the manifold runs and the larger bores are kept short.
Temperature Window
The published working range is −40 °C to +120 °C. A cooling loop normally runs far inside that, but the upper end matters for failure cases: if a pump stops and the loop heat-soaks, the hose has to survive the excursion without hardening or deforming, because the loop will be brought back up afterwards.
Construction and Flame Rating
Inside a cabinet, the material choices are made for the environment the hose sits in — not for the coolant alone.
Tube and Cover: Black EPDM
Both the inner tube and the cover are black EPDM synthetic rubber. EPDM is chosen here because it is stable against the water-glycol mixtures used in cooling loops, it does not harden in the way some compounds do after long exposure, and it stays flexible at the low temperatures a shutdown can produce.
Reinforcement: 1 or 2 Layers of Synthetic Fibre Braid
Synthetic fibre braid rather than steel, in one or two layers depending on the size and rating. Fibre keeps the hose light and non-conductive — important when the hose is routed near power and signal cabling inside a rack — while still holding the published pressure and resisting the collapse a suction-side install would otherwise cause.
Cover Properties: Weather, Abrasion, Ozone, V0
The cover is specified as weather resistant, abrasion resistant and ozone resistant, with V0 flame retardancy. The flame rating is the one that matters most in a data hall: a hose running through a cabinet should not become the path a small fault travels along.
Metric and Inch Both Published
The specification table carries inch designations alongside the metric dimensions, so a loop laid out to either convention can be checked against the same table. That matters when a coupling standard is fixed by the manifold rather than by the hose: 1/4", 5/16", 3/8" and upward are all covered by published sizes.
Quick Couplings and Leak-Free Connections
Leak-free over ten years of thermal cycling is a connection problem, not a hose problem. The hose determines what the coupling has to do.
What Thermal Cycling Does to a Joint
A loop that heats and cools repeatedly works every joint on it. The hose has to hold its bore and its wall thickness so the compression on the fitting does not change with temperature — because a joint that loses preload is what starts a slow drip, and a slow drip inside a cabinet is a far bigger problem than a burst hose.
Supplied as Hose, or as a Finished Assembly
We supply the hose on its own, or crimped into an assembly with quick-connect couplings fitted and the finished length pressure-tested. Send the coupling standard your manifold uses, or a drawing or sample, and the assembly is built to that rather than to a nearest match.
Lengths and Routing Per Rack
Because bend radius, bore and mass are all published per size, a rack layout can be specified size by size instead of ordering one hose and cutting it on site. Cut lengths are made and crimped in our own plant, so the assembly arrives finished and tested rather than as hose plus loose fittings.
Trial Before Volume
Cooling loops are usually rolled out rack by rack or hall by hall. Trial lengths let one loop be built and run before the rest of the order is committed, and because the trial and the volume order come off the same lines, the second batch is the same construction as the first rather than a similar one.
Frequently Asked Questions
Still have a question? Send it with the form — we answer within 12 hours.
What is your minimum order quantity (MOQ)?
100 m for standard items. Smaller trial orders are welcome for a first cooperation — and large volume orders are equally supported.
Can I get samples before placing a bulk order?
Yes. Free samples are available so you can check the quality before you commit.
What is the lead time?
Around 20 days from order confirmation, depending on quantity and specification. Standard items may ship faster from stock.
How do I pay?
A 30%–50% deposit with the balance before shipment. Other terms can be discussed when you order.
Do you support OEM / private label?
Yes — your brand, your specifications and your packaging. Custom orders start from 100 m.
Which standards do your hoses meet?
Production and testing follow GB/T, SAE, EN and DIN standards. We run an ISO 9001 quality system with an in-house laboratory.
Which countries do you export to?
More than 30 countries, mainly in Southeast Asia, the Middle East and Africa. We handle export documentation and shipping.
Can you help me choose the right hose?
Of course — tell us the working pressure, fluid and machine, and our engineers will recommend the right type and size. This consultation is free.
Request a Quote
Tell us the hose type, size and quantity — we reply within 12 hours with price and lead time.