Why Modern OEM/ODM Projects Choose UKNOW

UKNOW is a China stainless steel liquid cooling components supplier specializing in OEM and ODM solutions of liquid cooling couplings, heavy-duty tri-clamps, and sanitary fluid components for data center cooling systems, hygienic processing lines, and industrial fluid applications across global markets like Europe, North America, and Southeast Asia.

Start From 1 Unit

Order from 1 unit. Whether you're testing a new liquid cooling connector design or adding a hygienic ball valve to your product line, we don't require a bulk commitment to get started. Sample units ship in 5–7 days, fully certified.

30% Shorter Lead Times

Send us your spec and we'll confirm feasibility within 24 hours — tolerance, material, certification, all covered upfront. Custom orders ship on a fixed schedule agreed at drawing sign-off. Standard items go out within 7 business days.

Liquid Cooling Expertise

We make custom quick couplings, check valves, and clamp fittings for CDU loops, cold-plate circuits, and immersion systems. Non-standard port sizes, OCP UQD-compatible profiles and private-label marking.

Verified Quality

We inspect every hardware component individually to secure full traceability. Every shipment is backed by complete international credentials, delivering full 3A, ISO, DIN, IDF, and FDA documentation with your order.

Start From 1 Unit

Order from 1 unit. Whether you're testing a new liquid cooling connector design or adding a hygienic ball valve to your product line, we don't require a bulk commitment to get started. Sample units ship in 5–7 days, fully certified.

30% Shorter Lead Times

Send us your spec and we'll confirm feasibility within 24 hours — tolerance, material, certification, all covered upfront. Custom orders ship on a fixed schedule agreed at drawing sign-off. Standard items go out within 7 business days.

Liquid Cooling Expertise

We make custom quick couplings, check valves, and clamp fittings for CDU loops, cold-plate circuits, and immersion systems. Non-standard port sizes, OCP UQD-compatible profiles and private-label marking.

Verified Quality

We inspect every hardware component individually to secure full traceability. Every shipment is backed by complete international credentials, delivering full 3A, ISO, DIN, IDF, and FDA documentation with your order.

Start From 1 Unit

Order from 1 unit. Whether you're testing a new liquid cooling connector design or adding a hygienic ball valve to your product line, we don't require a bulk commitment to get started. Sample units ship in 5–7 days, fully certified.

30% Shorter Lead Times

Send us your spec and we'll confirm feasibility within 24 hours — tolerance, material, certification, all covered upfront. Custom orders ship on a fixed schedule agreed at drawing sign-off. Standard items go out within 7 business days.

Liquid Cooling Expertise

We make custom quick couplings, check valves, and clamp fittings for CDU loops, cold-plate circuits, and immersion systems. Non-standard port sizes, OCP UQD-compatible profiles and private-label marking.

Verified Quality

We inspect every hardware component individually to secure full traceability. Every shipment is backed by complete international credentials, delivering full 3A, ISO, DIN, IDF, and FDA documentation with your order.

Customize Your Liquid Cooling & High-Purity Fluid Components

Category Product Scope Technical Specifications & Custom Limits
01 Data Center Liquid Cooling Prefabricated CDU Pipelines, Dry-Break Quick Disconnects, Stainless Steel Fittings, and Large-Diameter Flanges
  • Cooling Application: Tailored for direct-to-chip cold plate & immersion cooling layouts
  • Testing Standards: 100% Helium Mass Spectrometer leak testing (1.5–2x working limits)
  • Purity Control: Ultrasonic de-greasing and ISO Class 7 Cleanroom packaging
  • Compatibility: Complete structural matching for proprietary server trays and rack architectures
02 Sanitary Valves Ball Valves (1/2/3-Piece & High-Platform), Butterfly, Check, and Diaphragm Valves
  • Size: 1/2" to 8" (DN10 - DN200)
  • Materials: Ultra-low carbon SS304 and SS316L stainless steel
  • Seals & O-rings: Special-formulated EPDM, FKM, and PTFE optimized for PG25 glycol resistance
  • Ends Connection: Butt-weld, tri-clamp, threaded, flanged, and vacuum ISO-KF ends
03 Sanitary Pipe Fittings Elbows, Tees, Reducers, Caps, Ferrules, and Male/Female Adapters
  • Size: DN10 - DN200 (Welded/Tri-Clamp); DN15 - DN100 (Threaded)
  • Wall Thickness: Custom schedules including SCH 5S, 10S, and 40S to match system pressure
  • Internal Finish: Electropolishing down to Ra 0.4µm to eliminate fluid turbulence
  • Geometric Options: Custom bending radius and non-standard geometric angles
04 Joints & Accessories Welded Straights, Quick-Install Tees, Hex Nipples, Hose Barbs, and Multi-Port Integrated Manifolds
  • Flow Control Size: Supports DN25 - DN100 (1" to 4" piping networks)
  • Thread Geometries: Precise NPT, BSPT, BSPP, and G thread configurations
  • Metallurgical Treatment: Vacuum solution annealing to eliminate thermal stress and intergranular corrosion
  • Traceability: Laser-etched heat numbers and part numbers for permanent MTR tracking
05 Heavy-Duty Connectors High-Pressure Tri-Clamps (Multi-Segment) and Complete Union Assemblies (Nut, Liner, Male Part)
  • Size: 1" to 6" (DN15 - DN200)
  • Pressure Rating: 0.6 MPa to 2.5 MPa with customizable heavy-duty high-pressure limits
  • Advanced Coatings: Anti-galling thread treatments to prevent interface seizure during maintenance
  • Components: Full range of customized high-tensile alloy bolts, nuts, and union liners

Partner with Us

OEM Workflow for Liquid Cooling & Sanitary Components

Share Your Project Requirements

Share your drawings, connection standards, or cooling system layout with our team. Most projects receive an initial engineering review within 24 hours.

Refine the Right Engineering Solution

We review material grades, sealing structures, connection types, and flow requirements to make sure each component matches your liquid cooling or sanitary piping system.

Prepare Samples for Early Evaluation

Prototype valves, fittings, and liquid cooling connectors are produced using the same 316L production standards as mass orders. Surface finish and pressure test reports are available upon request.

Confirm Performance Before Production

You test the samples in your own system environment. If adjustments are needed, revised samples can usually be prepared within a few working days before final specification approval.

Move Into Stable Batch Manufacturing

Once approved, production moves forward under controlled machining, polishing, and assembly processes. Inspection documents and export support are provided with every shipment.