EN
EN
DATA CENTER LIQUID COOLING
Every part of the liquid-cooling loop.One authorized source.
Hoses, quick disconnects, coolants, leak detection and bellows. Supplied, assembled and tested by HeTone.
DIRECT-TO-CHIP · RACK TO NODE UQD COUPLINGINTEL-INTERCHANGEABLE
ISO 16232IN-HOUSE CLEANLINESS LAB
9
Product categories covering the loop
20+
Hose, coupling and fitting series
ISO 16232
In-house cleanliness testing
100K
Clean room assembly and leak testing
System Map
One rack. Every component.
Where each product family lives in a direct-to-chip deployment.
Manifold AssemblyRACK MANIFOLDS 
NSI / NSP CouplingsQUICK DISCONNECT 
UQD CouplingsINTEL-INTERCHANGEABLE 
NSIC / NSAC / NSSCBLIND-MATE COUPLING
801 Series HoseEPDM · DLC RATED 
801TM Series HosePUSH-LOK LOW PRESSURE 
804 Series HosePUSH-LOK 
830M Series HosePUSH-LOK SELF-GRIP 
836 Series HosePUSH-LOK HIGH-TEMP 
672 Series HoseTHERMAL COOLING
Direct-to-chip · Rack to node
Every card is a series we stock, assemble and test — hover to trace it on the rack, click to jump to the family.Every card is a series we stock, assemble and test. Tap a card to jump to the family.
01 
PARKER
PARKERCategory 01
Liquid-cooling hoses.
Peroxide-cured EPDM for coolant transfer, from server-blade jumpers to 3-inch facility mains.
5.3 – 76 mm
Inner diameters
-40 ~ 100 °C
Temperature range
UL94
V-0 and HB flame ratings
Full specifications, 4 series
629 Server Blade Hose, for DLC rack manifolds
| Part number | Inner diameterin · mm | Outer diameterin · mm | Min bend radiusin · mm | Working pressurepsi · bar | Std pack |
|---|---|---|---|---|---|
| 629-3.5-RL | 0.21 · 5.3 | 0.38 · 9.7 | 0.6 · 16.0 | 150 · 10.3 | 500 ft reel |
| 629-4-RL | 0.25 · 6.4 | 0.48 · 12.1 | 0.8 · 19.1 | 150 · 10.3 | 600 ft reel |
UL94 V-0 cover, barb and clamp termination.
627 Thermal Cooling Hose
| Part number | Inner diameterin · mm | Outer diameterin · mm | Min bend radiusin · mm | Working pressurepsi · MPa | Reinforcementlayers |
|---|---|---|---|---|---|
| 627-6-RL | 3/8 · 9.5 | 0.7 · 16.7 | 1.3 · 33.0 | 150 · 1.03 | 2 |
| 627-8-RL | 1/2 · 12.7 | 0.9 · 22.7 | 2.0 · 50.8 | 150 · 1.03 | 4 |
| 627-12-RL | 3/4 · 19.1 | 1.2 · 29.4 | 3.0 · 76.2 | 150 · 1.03 | 4 |
| 627-16-RL | 1 · 25.4 | 1.4 · 36.3 | 4.5 · 114.3 | 150 · 1.03 | 4 |
| 627-20-RL | 1 1/4 · 31.8 | 1.8 · 45.7 | 6.5 · 165.1 | 150 · 1.03 | 4 |
| 627-24-RL | 1 1/2 · 38.1 | 2 · 50.8 | 9 · 228.6 | 150 · 1.03 | 4 |
UL94 HB rated, compounded for industrial coolants.
807 Push-Lok EPDM-P Hose
| Part number | Inner diameterin · mm | Outer diameterin · mm | Min bend radiusin · mm | Working pressurepsi · bar | Std pack |
|---|---|---|---|---|---|
| 807-4-BLK-RL | 1/4 · 6.4 | 0.48 · 12.1 | 1.0 · 25.4 | 150 · 10.3 | 600 ft reel |
| 807-6-BLK-RL | 3/8 · 9.5 | 0.63 · 15.9 | 1.5 · 38.1 | 150 · 10.3 | 450 ft reel |
| 807-8-BLK-RL | 1/2 · 12.7 | 0.81 · 20.6 | 2.8 · 69.9 | 150 · 10.3 | 300 ft reel |
| 807-10-BLK-RL | 5/8 · 15.9 | 0.91 · 23.1 | 3.5 · 88.9 | 150 · 10.3 | 250 ft reel |
| 807-12-BLK-RL | 3/4 · 19.1 | 1.05 · 26.7 | 4.5 · 114.3 | 150 · 10.3 | 200 ft reel |
| 807-16-BLK-RL | 1 · 25.4 | 1.28 · 32.6 | 6.0 · 152.4 | 100 · 6.9 | 150 ft reel |
Tool-free assembly with 82-series fittings, UL94 V-0 cover.
Series 7390 E-Z Form EPDM Hose, facility sizes
| Part number | Inner diameterin · mm | Outer diameterin · mm | Min bend radiusin · mm | Working pressurepsi · bar | Vacuumin-Hg |
|---|---|---|---|---|---|
| 7390-1250100 | 1.25 · 31.8 | 1.70 · 44.3 | 2.2 · 55.9 | 150 · 10.3 | 29 |
| 7390-1500100 | 1.50 · 38.1 | 1.90 · 50.5 | 2.9 · 73.7 | 150 · 10.3 | 29 |
| 7390-2000100 | 2.00 · 50.8 | 2.50 · 65.0 | 4.6 · 116.8 | 150 · 10.3 | 29 |
| 7390-3000100 | 3.00 · 76.2 | 3.50 · 90.5 | 8.8 · 223.5 | 150 · 10.3 | 29 |
Blue (-BLYL) or red (-RLYL) lay lines for supply and return coding. Also available: 801, 801TM, 804, 830M, 836M, 672, 7365, fluoropolymer hose and FEP tubing.
Category 02
Quick disconnects.
Dry-break couplings for cold plates, manifolds and CDUs. Six series, including Intel-interchangeable UQD and OCP-aligned CDT.
3 – 32 mm
Nominal diameters
≤ 20 bar
Working pressure
UQD
Intel-interchangeable
02 
PARKER
PARKERSeries comparison, NSP1 to NSSC
| Series | NSP1 | NSG | NSE | UQD | CDT | NSSC |
|---|---|---|---|---|---|---|
| Nominal diameter (mm) | 6 | 3 | 16 / 19 / 25 | 3 / 6 / 9 / 12 | 25 | 6 / 25 / 32 |
| Working pressure (bar) | 10.3 | 10.3 | 15 | 10.3 | 12 | 20 |
| Body material | SS | SS | B / SS | SS | SS | SS |
| Seals | EPDM | EPDM | FKM / EPDM | EPDM | EPDM | EPDM |
| Working temperature (°C) | 0 ~ 70 | 0 ~ 70 | -20 ~ 200 (FKM) | 0 ~ 70 | 10 ~ 60 | -55 ~ 120 |
| Connection | Push to connect | Two-hand | Two-hand, compact | Push to connect | Screw, two-hand | Screw, two-hand |
| Made in | US · CN | US | FR | US · CN | FR | FR |
Blind-mate NSC and NSAC series for tool-less server insertion also available.
03 
PARKER
PARKERCategory 03
Fittings and connectors.
Push-in fittings up to full 316L stainless, plus cartridge fittings and ball valves for manifold integration.
3 – 14 mm
Tubing sizes
30 bar
Working pressure
316L
LF3800 body and collet
Series comparison, LF3000 to LIQUIfit
| Series | LF3000 | LF3600 | LF3800 | LIQUIfit |
|---|---|---|---|---|
| Tubing size (mm) | 3 – 14 | 4 – 14 | 4 – 14 | 4 – 14 |
| Working pressure (bar) | 20 | 30 | 30 | 30 |
| Material | Nylon 6.6 | Nickel-plated brass | SS 316L | Bio-based nylon 11 |
| Seals | NBR | FDA / FKM | FKM | EPDM |
| Working temperature (°C) | -20 ~ 79 | -25 ~ 150 | -25 ~ 150 | 1 ~ 93 |
| Fluids | Compressed air | All liquids and gases | All fluids | Drinking water, treated water, beverages |
LF3800 covers connectors, elbows, tees, standpipes, unions, bulkheads and reducers. ISO 14743, FDA 21 CFR, RoHS, REACH, PED.
Category 04
Engineered coolants.
Jeffcool inhibited glycol, ExxonMobil PAO dielectric and Syensqo Galden PFPE, matched to your cooling architecture.
PG · PAO · PFPE
Three chemistries
-40 °C
ISF-55 freeze point
55 – 230 °C
Galden boiling points
04 
JEFFCOOL · EXXONMOBIL · SYENSQO
JEFFCOOL · EXXONMOBIL · SYENSQOCoolant selector, PG · PAO · PFPE
| Fluid family | Chemistry | Cooling mode | Key temperatures | Full part-number data |
|---|---|---|---|---|
| Jeffcool ISF · PG | Inhibited propylene glycol | Direct-to-chip, single phase | Freeze point -7 to -40 °C | On the Jeffcool brand page |
| ExxonMobil EMDC 3152 – 3250 | PAO dielectric fluid | Immersion, single phase | Flash point 157 – 246 °C | On the ExxonMobil brand page |
| Syensqo Galden HT55 – HT230 | PFPE, non-flammable | Immersion, two phase | Boiling point 55 – 230 °C | Stocked, datasheets on request |
Summary by design: ISF and EMDC part-number datasheets live on the brand pages linked above. PG and Galden HT series are stocked in Asia with coolant lifecycle monitoring.
05 
PARKER-PUROLATOR
PARKER-PUROLATORCategory 05
Strainers and filtration.
Stainless cartridges that keep debris out of microchannel cold plates, in housings from single loops to full CDU rows.
50 – 840 µm
Filtration range
~3 psi
Clean pressure drop
316L
Pleated and perforated media
Cylinder and Y-type housings 4″ G4 · 6″ IN-ROW 10 / 20 µm commissioning grades
Category 06
Valves.
Solenoid, check and relief valves in coolant-compatible materials, from PWM proportional control to pump-manifold protection.
7 – 580 psi
Check valve range
3.6 psi
Cracking pressure
316L · FKM
Body and seals
06 
PARKER
PARKERCheck valve flow data and series
Stainless check valves 4890 / 4891 / 4892
| Sizein | Water flowSCFM @90 psi | Kv |
|---|---|---|
| 1/8 | 0.67 | 1.60 |
| 1/4 | 0.70 | 1.69 |
| 3/8 | 1.26 | 3.01 |
| 1/2 | 1.29 | 3.10 |
| 3/4 | 2.33 | 5.59 |
| 1 | 3.27 | 7.86 |
316L body and poppet, 302 spring, FKM seals, -20 to 180 °C. C-series check valves (1/3 to 100 psig cracking), CBF filter check valves (75 to 800 µm) and RL4 relief valves (10 to 400 psig) also available.
07 
OETIKER
OETIKERCategory 07
Clamps and connections.
Swiss-engineered 360-degree clamping for every barbed joint, with monitored tools that verify each closure.
6.5 – 255 mm
Clamping range
360°
Zero-gap seal
1,000 h
Corrosion tested, ISO 9227
Series overview, 123 / 193 / 268 / 178
| Series | Type | Rangemm | Highlight |
|---|---|---|---|
| StepLess 123 / 167 / 193 | Ear clamps | 6.5 – 120.5 | Tamper-resistant, stainless 193 at 1,000 h ISO 9227 |
| Low Profile 268 | Reusable clamps | 22.5 – 41.0 | Opens and re-installs up to 5 times |
| StepLess 178 | Screw clamps | 18.0 – 255.0 | Aerospace-grade 17-7PH spring, self-tensioning option |
Pneumatic and cordless pincers with closure verification, plus hand installation tools.
Category 08
Thermal interface materials.
Pads, gap fillers, gels and phase-change materials from Bergquist and Parker Chomerics, the chip-level half of the thermal path.
0.9 – 12
W/m·K conductivity
6 kV
Dielectric isolation
5+
Material families
SIL PAD · GAP PAD · GAP FILLER · 1K GEL · PCM THERM-A-GAP · THERMFLOW · CHO-THERM
08 
BERGQUIST · CHOMERICS
BERGQUIST · CHOMERICSLeakage Control · TCT + HeTone
From detection to shut-off in seconds.
The stack senses conductive fluid in under two seconds, alarms the rack controller, and isolates the affected loop automatically.
01Sensing rope / board 02LCSM node module 03LCM rack controller 04CDU + BMS alarm 05HT-Valve shut-off
Detect
Leak sensing cable
Supervised rope sensor: steady LED means leak, dark means rope fault, 5 Hz blink is healthy.
- Power
- DC 12 V · <200 mW
- Rope length
- ≤ 50 m
- Output
- Open collector
- Environment
- -20 ~ 70 °C
Detect
Leak detection board
Thin self-adhesive PET board for cold plates, manifolds and drip trays. Custom shapes on request.
- Standard size
- 59 × 84 × 0.2 mm
- Response time
- ≤ 2 s
- Operating range
- -20 ~ 120 °C
- Wiring
- Series or parallel
Shut off
HT-Valve-1238
HeTone-engineered impulse solenoid. One 3.3 V pulse latches it closed, no holding power.
- Ports
- G1/2 in · G3/8 out
- Flow
- Kv 1.9 · 50 L/min
- Pressure
- 0 – 10 bar · IP65
09 
MADE BY HETONE
MADE BY HETONECategory 09 · Made by HeTone
Stainless bellows and braided hose.
Formed bellows and braided flexible hose made in-house, from 316L coolant jumpers to Inconel and Hastelloy vacuum bellows.
4.6 – 250 mm
Inner diameters
-200 ~ 400 °C
Vacuum bellows range
≤ 3,000 mm
Lengths, 1 – 4 ply
Full size tables, braided hose and vacuum bellows
Braided bellows hose, 316L with 304 braid
| Size | Inner diametermm | Outer diametermm | Dynamic bend radiusmm | Working pressurebar | Burst pressurebar |
|---|---|---|---|---|---|
| 6A | 6.3 | 11.1 | 80 | 163 | 652 |
| 8A | 8.5 | 13.6 | 120 | 120 | 483 |
| 10A | 10 | 15.4 | 130 | 59 | 438 |
| 12A | 12.1 | 18.2 | 140 | 80 | 320 |
| 16A | 16.6 | 23.4 | 160 | 47 | 189 |
| 20A | 20.2 | 28.2 | 170 | 71 | 284 |
| 25A | 25.3 | 33.85 | 190 | 45 | 180 |
Service temperature -50 to 300 °C across all sizes.
Bare bellows hose, 316L
| Size | Inner diametermm | Outer diametermm | Dynamic bend radiusmm |
|---|---|---|---|
| 6A | 6.3 | 9.5 | 75 |
| 8A | 8.5 | 12 | 115 |
| 10A | 10 | 14 | 125 |
| 12A | 12.1 | 18.2 | 135 |
| 16A | 16.6 | 21.8 | 155 |
| 20A | 20.2 | 26.6 | 160 |
| 25A | 25.3 | 32.1 | 180 |
Service temperature -50 to 300 °C across all sizes.
Formed vacuum bellows, standard sizes
| Code | Inner diametermm | Outer diametermm | Wall thicknessmm | Pitchmm |
|---|---|---|---|---|
| 10A | 10.4 | 16.2 | 0.1 | 2.1 |
| 12A | 12 | 18 | 0.1 | 2.1 |
| 13A | 12.9 | 19 | 0.1 | 2.9 |
| 14A | 14.2 | 20 | 0.1 | 2.2 |
| 16A | 16.4 | 24 | 0.1 | 2.3 |
| 18A | 18.2 | 26 | 0.15 / 0.2 | 3 |
| 19A | 19.4 | 29 | 0.127 | 2.3 |
| 20A | 20.1 | 28.5 | 0.15 | 4.5 |
| 21A | 20.7 | 30.4 | 0.2 | 4.6 |
| 22A | 22.3 | 32 | 0.2 | 4 |
| 25A | 25.2 | 36 | 0.1 / 0.15 / 0.2 | 4.6 |
| 27A | 27 | 35.7 | 0.2 | 4.7 |
| 28A | 28.6 | 39.5 | 0.127 | 4.2 |
| 32A | 31.6 | 45.5 | 0.1 / 0.127 / 0.15 | 3.4 |
| 34A | 33.8 | 47 | 0.1 | 3.5 |
| 38A | 38 | 54 | 0.1 – 0.2 | 5.2 |
| 40A | 40.9 | 54.7 | 0.25 | 6.9 |
| 50A | 50.2 | 68 | 0.15 / 0.2 | 6.3 |
| 54A | 54 | 72 | 0.15 | 3.7 |
| 55A | 55.2 | 70 | 0.25 | 7.4 |
| 62A | 62 | 84 | 0.2 | 7.9 |
| 63A | 63.6 | 75 | 0.2 | 5.4 |
| 66A | 66 | 90 | 0.2 | 4.5 |
| 76A | 76 | 96.5 | 0.2 | 7.5 |
| 100A | 100 | 125.5 | 0.2 | 8 |
| 150A | 148.7 | 174.5 | 0.25 | 11.8 |
| 200A | 200 | 236 | 0.3 | 13 |
| 250A | 250 | 293 | 0.3 | 15 |
Leakage rate under 2.0 × 10⁻⁹ Pa·m³/s, elasticity 30 percent. Materials: 304, 321, 316L, 316Ti, Inconel 625/718, Hastelloy C276/C22. Custom flanges and end fittings.
Assembly and Quality
Not just components. Finished assemblies.
Cut, crimped, cleaned and leak-tested in-house, ready to install in the rack.
×4
Hose auto-cutting machines, 1/4″ to 3″
×2
125-ton crimping and leak-test lines
100K
Clean room, He / N2 / water leak testing
ISO 16232
Cleanliness verified on every assembly
Applications
Where these components are deployed.
Speccing a CDU, manifold or complete cooling loop?
Send us your line sizes, coolant chemistry and pressure targets. We reply within one business day.