Data center cooling requires reliable, leak-free, compact and energy-efficient designs to ensure optimal performance with minimal downtime. The HMD and Ansimag portfolio includes pumps for single-phase and dual-phase rack cooling from 0.5MW to 3MW, as well as custom solutions to meet CDU OEM or customer specifications.
To learn more about Sundyne’s value proposition for Data Centers, download our Data Centers brochure.
If you are evaluating pumps for CDU applications, please contact:
Cory Wittwer for the Americas (Cory.Wittwer@Honeywell.com)
Dan Waring for Europe, Middle East, or Asia (Daniel.Waring@Honeywell.com)
Applications for CDU Systems:
Sundyne sealless pumps support CDUs (coolant distribution units) in data center liquid cooling systems, where precise flow control, leak prevention and high uptime are critical. In CDU applications, pumps help maintain stable coolant circulation through the secondary loop that serves cold plates, rack manifolds and other heat-transfer components.
- Direct-to-chip cooling: Supports CDU secondary loops that deliver coolant to cold plants on CPUs and GPUs
- Hybrid liquid cooling: Optimizes performance of hybrid cooling by using liquids to handle high heat loads as facilities transition to higher rack densities
- Rack-level coolant circulation: Maintains consistent flow and pressure across CDU-managed rack circuits to support thermal stability and predictable performance.
Sundyne pumps are well suited to CDU systems that demand a compact footprint, efficient operation and dependable performance under variable load conditions. For data center operators, this provides a simpler way to support uptime, reduce maintenance risk and improve lifecycle costs.
Why Choose Sealless Pumps for Data Center Cooling Solutions?
Superior Reliability:
Due to the simplicity of their design, eliminating the need for dynamic seals, and world-class manufacturing processes, HMD and Ansimag pumps perform with a MTBF or MTBR that is +3.5x better than sealed pumps. This means fewer repairs and extended uptime.
Modular, Compact, Scalable:
A design philosophy focused on size & modularity means a compact footprint, component standardization, and the interchangeability to optimize fit, inventory, and delivery. Having what you need when you need it is critical to maintaining data center operations, so knowing that just a few parts can satisfy the needs of multiple pump configurations reduces risk and amplifies the strength of downtime mitigation strategies. HMD & Ansimag pumps are available in both ANSI B73.3 and ISO 2858 versions.
Efficient Operation:
No seals or consumables, low energy consumption, and low heat generation with non-metallic containment shell solutions means reduced OPEX for every sealless pump in service. The initial purchase price of a pump only represents 10% of its total lifecycle costs, HMD and Ansimag application engineering teams can help calculate detailed total lifecycle costs to better illustrate the how sealless pumps are the right choice for data center cooling.
Breakdown of Typical Pump Lifecycle Costs
Simplicity:
No need for specialist service teams, as HMD and Ansimag pumps can be maintained or repaired without special tools or advanced training.
Safety:
Sealless magnetic drive designs eliminate the risk of fluid leaks, which ensures the protection of employees, equipment and reputations.
Global Network:
Manufactured in the USA and UK with a partner network spanning 140 locations across 70 countries; sales, service, and support is never far away.
