Product Description
What this item is and who it is for
- Replacement timed rotary valve sub-assembly used in Drive/DeVilbiss 10 L oxygen concentrators (models in the 1025/525 family).
- For technicians, service centres or owners who need the OEM rotary distribution valve that alternates compressor pressure between sieve beds.
Specifications
- Manufacturer part number: 1025D-702 (also referenced as 515ADZ-702 / related 525-series part numbers in parts lists).
- Intended machine compatibility: Drive/DeVilbiss 1025 10 L oxygen concentrator (and compatible 525/1025-series variants as shown in parts diagrams).
- Visible construction: clear plastic valve body with multiple (4-way) external hose ports and visible internal rotor pockets; top-mounted drive/motor housing and an electrical harness connection.
What is included
- Rotary valve sub-assembly (single unit) as sold on spare-parts pages.
Condition and packaging
- Sold as a new OEM replacement part by authorised spare-parts resellers. No unit from the operator’s own stock was photographed; the listing image provided is a reseller/manufacturer part image.
Usage notes
- The valve is the timed distribution component that directs compressor pressure to the sieve beds; incorrect valve selection or installation may prevent proper bed switching and affect oxygen output.
- Service manuals advise care when leak-testing and replacing the valve; follow manufacturer service instructions for installation and pressure testing.
Limitations and unknowns
- This listing shows the replacement part only. Hoses, clamps, valve harness (electrical lead) and other concentrator parts are commonly sold separately; check your machine’s parts list before ordering.
If you need help confirming fit with your exact serial/model, provide the concentrator model and serial number so we can check the parts diagram.
