Eaton vs Parker Hannifin
Eaton and Parker Hannifin are both placed on 3 of the same AI data center parts in this catalog, spanning layer 5. Eaton appears on 21 parts in total and Parker Hannifin on 5.
At a glance
| Eaton | Parker Hannifin | |
|---|---|---|
| Ownership | public | public |
| Headquarters | Dublin, Ireland | Cleveland, United States |
| Primary listing | ETN | PH |
| Market cap | 142.2B USD | 111.1B USD |
| Parts placed | 21 | 5 |
| Layers covered | 4 | 2 |
| Units / subsidiaries | 0 | 0 |
| Seen in machines | 1 | 1 |
Market caps are a nightly snapshot in each listing's own currency, never converted.
What the shared parts are
- Quick disconnects — Blind-mate connectors (UQD or UQDB) that let a compute tray or cold plate be connected to or disconnected from the coolant manifold without draining or spilling the loop.
- Hoses, tubing, fittings, valves — The flexible hoses, rigid tubing, compression and push-fit fittings, and shutoff or balancing valves that carry coolant between manifolds, quick disconnects, and the CDU.
- Filtration — Filtration inside or ahead of the CDU that removes particulates from the technology-side coolant loop before it reaches the narrow channels of manifolds and cold plates.
The 3 parts both make
| Part | Eaton | Parker Hannifin |
|---|---|---|
| Quick disconnects Layer 5 — Liquid cooling (IT-side: chip to CDU) | manufacturer inferred | manufacturer inferred Hannifin |
| Hoses, tubing, fittings, valves Layer 5 — Liquid cooling (IT-side: chip to CDU) | manufacturer inferred | manufacturer inferred |
| Filtration Layer 5 — Liquid cooling (IT-side: chip to CDU) | manufacturer inferred | manufacturer inferred |
Only Eaton
- Power shelves & PSUs layer 4
- In-rack busbar & power whips layer 4
- Rack PDUs layer 4
- HV switchgear, GIS, breakers, protection relays layer 7
- MV switchgear, E-houses, power skids layer 7
- MV/LV transformers layer 7
- LV switchgear, switchboards, panelboards layer 7
- Busway / busbar trunking layer 7
- Floor PDUs, RPPs, static transfer switches, ATS layer 7
- Circuit protection, fuses, surge, grounding layer 7
- and 8 more on Eaton's page.
Only Parker Hannifin
- Rack manifolds layer 5
- Air handling, economizers, filtration layer 6
Named in the same machines
- Nvidia GB300 NVL72 rack teardown
Questions
- Do Eaton and Parker Hannifin compete?
- In this catalog they are both placed on 3 of the same parts, across 1 layer: Quick disconnects, Hoses, tubing, fittings, valves, Filtration. Sharing a part does not mean selling the same product to the same buyer, so read each row's product note.
- Which has more placements, Eaton or Parker Hannifin?
- Eaton has 21 placements and Parker Hannifin has 5. Placement counts reflect how thoroughly each company has been catalogued as well as its real breadth, so they are not a ranking.
Generated from the catalog's part-to-company table. Each placement is tagged disclosed, reported or inferred; see sources & method. Neither company is endorsed or ranked here.