Rack Manifold for Liquid Cooling
Rack Manifold for Liquid Cooling
Designed for AI Era High-Density Liquid Cooling | OCP Liquid Cooling Specification Compliant | 100% Helium Leak Tested Before Shipment

44-Port UQD04 Rack Manifold — Helium Leak Tested / Tubing Hole-Drilled Completion View
Product Overview
As power consumption per rack exceeds 100 kW, liquid cooling manifolds have become a critical foundation for AI data centers. The SZS Rack Manifold complies with the OCP Liquid Cooling Specification, featuring 44 UQD04 Hand-Mate branches that support a Drip-Free quick-disconnect design for rapid on-site installation and maintenance. A single manifold can simultaneously support up to 44 server devices, meeting high-density Direct-to-Chip cooling demands within the rack.
| Specification Item | Value |
|---|---|
| UQD04 Branch Count | 44 Port (Supports up to 44 devices simultaneously) |
| Manifold Body Material | SUS304L (Baseline) |
| Product Dimensions | 2,090 mm × 60 mm × 35 mm (L × W × H) |
| Single Branch Rated Flow | 1.7 GPM (6.44 L/min) per port |
| Rated Operating Pressure | 150 psi (Target) |
| Helium Leak Rate (Shipping Standard) | ≤ 1×10⁻⁵ mbar·L/s (100% Unit-by-Unit) |
| Cleanliness Rating | ISO 4406 16/14/11 (Target) |
| Operating Temperature | 5–70°C |
| Design Lifespan | 10 Years / MTBF ≥ 50,000 hr |
| Supported Coolants | Pure Water, PG25, EG Mixtures |
| OCP Compatibility | OCP Liquid Cooling Specification |
Turnkey In-House Manufacturing Flow
Complete control of the entire manufacturing process in-house eliminates external quality risks, shortens supply chain cycles, and enhances delivery reliability.
CNC Precision Machining
408 Lathes × 280 Milling Machines
0.01 mm precision, fully in-house processed
3 kW Laser Welding
IPG YLR 5-Axis Platform
HAZ 0.5–2 mm, deformation < 0.5 mm
CNC Straightening
Ensures interference-free assembly & stress relief
Applicable to 1,000–2,200 mm lengths, 0.3 mm adjustment resolution
3-in-1 Cleaning Process
Hydrostatic testing + High-flow flushing + N2 hot air drying
100% weld joint penetration and leak check
VDA Cleanliness Verification
VDA 19.1 / ISO 16232 Extraction Analysis
Forensic particle classification database
Final Helium Leak Testing
Vacuum chamber total-immersion testing
100% unit-by-unit testing with quantitative leak rate reports
Three Core Technological Advantages
Each process directly addresses critical field-failure concerns from clients.
LWM Online Weld Monitoring — From Sampling to 100% Assurance
Multi-channel synchronized signals detect plasma radiation, reflected light, and temperature in real-time, establishing a unique digital signature for every weld path. Automated comparisons with master waveforms instantly flag under-penetration or power anomalies. Weld data is permanently linked to the component serial number for full traceability.
Client Value: Shifts quality control from random sampling to 100% continuous monitoring, backed by scientific data required for AI server and automotive-grade validation.
Vacuum Helium Leak Detection — Quantitative Leak Rates over Pass/Fail
Dual-chamber vacuum helium mass spectrometers achieve a fine sensitivity of 10⁻⁹ mbar·L/s, vastly outperforming water immersion bubble checks (10⁻³) and pressure drop methods (10⁻⁴). Our strict shipping acceptance criterion is set at ≤ 1×10⁻⁵ mbar·L/s. Every unit comes with its individual test curve and equipment calibration certificate, seamlessly mapping to your engineering specification limits.
Helium Leak Testing Operation — Full Vacuum Chamber Test (100% Inspected)
CNC Straightening — Guaranteeing Interference-Free 2,200 mm Assembly
Long manifolds inevitably distort due to laser welding thermal stress. Our CNC straightening center automatically applies closed-loop calibration based on 3D laser scanning deviation profiles. With a minimal adjustment stroke of 0.3 mm, straightness is brought back to < 0.5 mm/m, strictly complying with EIA 19" Rack installation standards.
Result: Guarantees smooth installation without mechanical binding, releases internal residual stress concentrations, and logs comprehensive dimensional tracking into our factory MES.
Four-Stage Quality Assurance
From raw material inbound inspection to final deployment, every part tracks back to its digital birth certificate.
IQC Material Audit
✓ PMI spectroscopy validates alloy composition per batch
✓ Cross-checks MTC / CoC certifications
✓ Rigid segregation against contamination
IPQC Process Control
✓ LWM 100% automated weld path monitoring
✓ CNC first/last article audits + post-straightening dim checks
TEST Reliability Lab
✓ ASTM A967 Passivation + VDA particle extractions
✓ 100% sequential vacuum helium gas sniffer tests
OQC Pre-Shipment Gate
✓ N2 purging to ensure pressure dew point < -40°C prior to sealing
✓ 0.5–1.0 bar positive pressure preservation hold
✅ Comprehensive Quality Coverage
- ✓ 100% Digital Genealogy — Complete logs of LWM data, Helium curves, and VDA cleanliness reports
- ✓ Ready to support third-party auditing requirements and PPAP documentation
- ✓ UQD04 Quick-Disconnect Mechanical Fit Validation — 100% physical cycle test executed before packing
16 Core Equipment Types, Entirely Proprietary
Every stage of production and measurement tool is wholly owned and operated within our facilities, guaranteeing robust lot-to-lot alignment and lead-time execution.
ZEISS T-SCAN HAWK 2
3D portable scanning precision up to 0.02 mm
Capable of structural deep-slot checks; fully DAkkS / ILAC accredited
Automated Cleanliness Profiling
Dual-platform BX53M + CIX-100 configuration
VDA 19.1 / ISO 16232 automated particle dimension auditing
Vacuum Helium Mass Spectrometry
Extreme sensor threshold down to 10⁻⁹ mbar·L/s
Supplies quantitative volumetric leak calculation per shipment
UQD04 Connector Components (Threaded Ring, Body, Pins) and SZS Manifold Display Sample
Finished Product Showcase
44-Port UQD04 Rack Manifold — Post-Test Integrity Validation / Drilled Flowpaths
Precision Machined UQD04 Quick-Disconnect Assemblies
Liquid Cooling Manifold Integration Inside a Standard Data Center Rack
Defining High-Reliability Standards with Precision Craftsmanship
Data-driven quality parameters, forging new standards for AI liquid cooling systems.
▢ Turnkey Integration & Traceability
Critical operations are concentrated inside a single system, sealing off quality leaks and ensuring solid ship dates.
▢ Extreme Engineering Capability
LWM process delivers 100% automated weld diagnostics, generating scientific confirmation profiles for each run.
▢ 100% Digital Quality Logs
All telemetry from LWM systems, helium scanners, and VDA metrics are bundled into permanent archival vaults for PPAP checks.
▢ Cleanliness & Leakage Assurance
Verified through strict VDA 19.1 extractions alongside an absolute sensor sensitivity rating down to 10⁻⁹ mbar·L/s.
▢ UQD04 Quick-Fit Interoperability
Fully compatible with native UQD04 Hand-Mate physical envelopes, audited through pre-shipment plug cycle validations.
▢ Geometric Precision Commitment
Dynamic structural straighteners control lengths up to 2,200 mm via micro-steps of 0.3 mm, ensuring zero rack interference.
Helium Test Outbound Metric
Other
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