Apex RDHx Series Datasheet
Rear door heat exchanger performance curves, dimensional drawings, and connection details.
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Technical Resources for Data Center Engineers
Download datasheets, read application guides, and explore case studies designed to help you specify, deploy, and operate Apex liquid cooling systems.
Product Datasheets
Detailed Specifications
Apex CDU Series Datasheet
Coolant distribution unit capacity ranges, control architecture, and electrical requirements.
Download PDFApex Manifold Series Datasheet
Top-rack and in-rack manifold configurations, porting options, and flow data.
Download PDFApex QDC Series Datasheet
Quick disconnect coupling pressure ratings, materials, and ergonomic specifications.
Download PDFKnowledge Base
White Papers & Application Guides
Liquid Cooling Fundamentals for AI Data Centers
A technical primer comparing RDHx, direct-to-chip, and immersion architectures—plus guidance on selecting the right approach for GPU-heavy workloads.
Read the white paperDesigning a Rack-Level Liquid Cooling Loop
Step-by-step guidance on CDU sizing, manifold layout, hose routing, leak detection placement, and dry cooler selection.
Read the guideThermal Monitoring and Leak Detection Best Practices
How to instrument a liquid cooling system for early fault detection, predictive maintenance, and compliance reporting.
Read the white paperCoolant Selection and Maintenance
Fluid compatibility, inhibitor packages, filtration, and routine maintenance intervals to maximize system life.
Read the guideCase Studies
Customer Deployment Highlights
AI / Hyperscale
10 MW GPU Training Cluster
A cloud operator deployed Apex CDUs, manifolds, and RDHx units to support a 10 MW AI training facility, achieving stable inlet temperatures and a PUE under 1.2.
Read case studyHPC / Research
University Supercomputing Center
A research institution upgraded its supercomputer with direct-to-chip and RDHx cooling, recovering waste heat for campus district heating.
Read case studyEnterprise
Fortune 500 Data Center Retrofit
An enterprise facility added rear door heat exchangers to existing racks, avoiding a chiller plant expansion while supporting 40 kW per rack.
Read case studyFAQs
Common Questions
Most closed-loop systems operate on a propylene glycol and deionized water mixture with corrosion inhibitors. We provide coolant specifications and can qualify alternative fluids based on facility water chemistry and operating temperature targets.
Standard CDUs, manifolds, and RDHx units typically ship within 4–6 weeks. Custom rack-level solutions follow a design and approval cycle before production, with phased delivery options for fast-track deployments.
Yes. Rear door heat exchangers are specifically designed to replace or supplement standard rack doors, making them ideal for retrofit installations without major facility construction.
CDUs can be configured with N+1 redundant pumps, dual power feeds, and backup controllers. Manifold and hose assemblies can be built with redundant loops and isolation valves for serviceability.
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