Core Challenges
Tight Space
CDU cabinets leave minimal room — standard valves simply don't fit.
Difficult Operation
Conventional valves are hard to open and close in confined spaces.
Leakage Risk
Bolted connections create leak paths inside the CDU over time.
PHE Clogging
Particulate buildup blocks heat exchanger microchannels.
How We Solve CDU Solution Challenges
Compact Isolation
Low-torque operation in the tightest spaces. One-piece welded body — no bolted joints, no leak paths. Triple-sealed mid-head with patented anti-leak stem design.
Recommended Products:
Integrated Butterfly Valve   
PHE Protection
Five-layer sintered mesh — protection layer, filtration layer, dispersion layer, two support layers. Surface filtration with smooth pores enables backwashing for repeated long-term use.
Vibration Absorption
Fully automatic welded seams — zero leakage at 1.6MPa. Electropolished surface eliminates micro-cracks, triples fatigue life. Compensates pump vibration and thermal expansion to prevent pipe rupture.
Backflow Prevention
Body and cover welded into a single unit — zero shell leakage. Compact footprint fits where standard check valves cannot. Low cracking pressure for responsive backflow protection.
Recommended Products:
Integrated Check Valve   
Reliable Service Support

From technical selection to on-site assistance, we provide full-lifecycle support for your liquid cooling project.

  1. Application engineering and material selection
  2. 24-hour drawings and 3D model delivery
  3. Prefabrication and installation support
  4. Local service via partners in North America, Europe, and Southeast Asia
Frequently Asked Questions

Why use one-piece welded butterfly valves for CDU isolation?

 
 

One-piece welded butterfly valves eliminate leak paths found in bolted connections. Their compact design enables low-torque operation in tight CDU enclosures where standard valves cannot fit.

How do sintered mesh filters protect CDU plate heat exchangers?

 
 

Five-layer sintered mesh filters capture particulates before they reach PHE microchannels. Surface filtration with smooth pores enables effective backwashing for repeated long-term use in continuous cooling operations.

Can CDU valves be serviced without draining the cooling loop?

 
 

Yes. Our one-piece butterfly valves support inline maintenance — close the valve, remove six bolts on the branch flange, and service downstream components while the main loop remains operational.

What prevents pump vibration from damaging CDU pipe connections?

 
 

Metal braided bellows absorb pump vibration and compensate for thermal expansion at CDU pump interfaces. Automatic welded seams ensure zero leakage under continuous vibration conditions.

Latest Updates
QINFENG Launches Enhanced One-Piece Welded Butterfly Valve Series for AI Data Center Liquid Cooling
New Valve Series Addresses Zero-Leakage Requirements in High-Density RacksAs AI server racks push power densities beyond 50kW, liquid cooling system operators face increasing pressure t
2026.06.15
QINFENG Completes High-Volume Delivery of Prefabricated Liquid Cooling Piping Modules
Factory Pre-Assembly Accelerates On-Site Installation for Multiple Data Center ProjectsQinfeng Technology has successfully delivered over 1,500 prefabricated liquid cooling piping modul
2026.06.15
What Should I Check Before Buying a Double Female Thread Mini Ball Valve?
Buying a Double Female Thread Mini Ball Valve? Check size, thread standard, material, PN10 rating, glycol compatibility, sealing, cleanliness, OEM support and lead time for CDU and liquid cooling projects.
2026.09.10
Find the Right Valve Solution for Your Cooling System
Contact Us
How we can help you:
  • Valve sizing, material compatibility, and flow path optimization
  • Prefabricated manifold and piping system design
  • 24-hour CAD drawings and sample support

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+86 18736628675

[email protected]

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