Valves for Liquid Cooling Systems

Stainless steel butterfly, ball, check, exhaust and safety interlock valves engineered for coolant isolation, flow control and maintenance across data center and industrial liquid cooling loops.
Choose Your Configuration
Not Sure Which Valve Fits Your Cooling Loop?
Every cooling loop has unique isolation requirements. Describe your application and our engineers will recommend the right butterfly valve type and configuration.
Our Advantages
The QINFENG Valve Difference
Zero-Leak Structure
Zero-Leak Structure
One-piece welded body eliminates leak paths of bolted connections. Argon arc welded — no gap between left and right body halves. Built for sterile, contamination-free processing.
Triple Sealing + Patented Anti-Leak Stem
Triple Sealing + Patented Anti-Leak Stem
Two O-rings inside and two outside the mid-head. Under abnormal conditions, fluid stays contained — conventional valves leak from stem and body joints.
Low Maintenance
Low Maintenance
100,000+ cycles, zero external leakage. Inline maintenance — close valve, remove six bolts, service branch without process shutdown.
Ultra-Clean Surface Finish
Ultra-Clean Surface Finish
Electropolished inner walls to Ra ≤ 0.4μm — mirror-grade smoothness. No microbial adhesion, no biofilm formation. Compatible with CIP and SIP cleaning protocols.
They Chose QINFENG:

Quality Assurance

Every hygienic valve undergoes 100% shell hydro and seat leakage testing — zero bubbles equals zero leak. Surface finish verified to Ra ≤ 0.4μm. Material confirmed by spectrometer with full traceability. Cleanroom-assembled and packaged for contamination-free delivery.

Every hygienic valve undergoes 100% shell hydro and seat leakage testing — zero bubbles equals zero leak
Every hygienic valve undergoes 100% shell hydro and seat leakage testing — zero bubbles equals zero leak
Every hygienic valve undergoes 100% shell hydro and seat leakage testing — zero bubbles equals zero leak
Every hygienic valve undergoes 100% shell hydro and seat leakage testing — zero bubbles equals zero leak

* All hygienic valves are 100% tested and cleanroom-packaged before shipment.

What we provide
What we provide:

Valve sizing by your flow and pressure specs. Material compatibility analysis for your coolant type. Custom end connections (Tri-Clamp, weld, flange). Actuator selection support (manual, pneumatic, electric).

Frequently Asked Questions
Please let us know your basic requirements. Our technical team will respond within 24 hours.
Contact Us

What is CIP and SIP compatibility in sanitary valves?

 
 

CIP (Clean-in-Place) and SIP (Sterilize-in-Place) compatibility means valves can be cleaned and sterilized without disassembly. Full drainability and electropolished surfaces ensure no residual media remains after cleaning cycles.

How does triple sealing prevent leakage in hygienic valves?

 
 

Two O-rings inside and two outside the mid-head sealing ring create redundant protection. Under abnormal conditions, fluid is contained within the stem chamber — conventional valves leak from both stem and body joints simultaneously.

Why use one-piece welded valves in sanitary process systems?

 
 

One-piece welded body eliminates bolted joints where bacteria could accumulate. Argon arc welding creates a seamless internal surface — no crevices, no contamination traps, full cleanability between batches.

What makes a valve hygienic-grade for food and pharmaceutical applications?

 
 

Hygienic valves feature zero dead-leg design for full drainability, electropolished surfaces to Ra ≤ 0.4μm to prevent microbial adhesion, and one-piece welded bodies to eliminate leak paths. Certified to 3-A, DIN, and ISO standards for sterile processing.

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
Grand Opening of WAIC 2026 | Liquid Cooling Takes Center Stage as Phase-Change Solutions Steal the Spotlight on Debut Day
From Air-Cooled to Liquid-Cooled, Phase-Change Technology Redefines the New Era of Computing Power CoolingShanghai, July 2026 — Amid the dazzling AI applications on display at the World Artificial Int
2026.07.29
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 86998350

[email protected]

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