Standby diesel for data-center generators sits idle for months or years — then must start perfectly on the first second of an outage. Continuous circulation polishing removes the water, microbial slime and gum that build up in idle tanks, so emergency fuel stays within specification and the genset starts when the grid does not.
Diesel fuel polishing for data-center backup generators. Continuous circulation polishing removes the free water, microbial slime and oxidised gum that accumulate in standby tanks — the common causes of failed start-ups — so emergency fuel stays within specification and ready to run during blackouts, load tests and emergency-power audits.
The JY-DF15 closes the flow gap between the compact JY-DX5 (5 m³/h) and the JY-DX40 (40 m³/h): an approx. 8–12 m³/h deep-purification skid built specifically for standby fuel in IDC, hospital and telecom plants — in effect a fuel "dialysis unit" for the data hall. A 100-element high-density rigid membrane array spreads flow across a very large filtration area, keeping face velocity low so captured contamination holds firm even on badly degraded fuel.
It runs as a 24/7 kidney loop on the storage tank, continuously stripping gum, microbial residues and condensate water from fuel that may sit idle for years — keeping the inventory start-ready between outages, monthly load tests and readiness audits. Membrane regeneration is online (gas-pulse reverse flush, seconds) with periodic disassembly cleaning — no consumable cartridges to budget, store or dispose of.
| JY-DF15 — Key Specifications | |
|---|---|
| Rated flow | Approx. 8–12 m³/h |
| Filtration precision | 5 µm standard (optional 10 / 15 / 20 µm) |
| Working pressure | 0.2–0.4 MPa |
| Membrane array | 100-element high-density polymer rigid composite membrane |
| Water removal | Free water at outlet ≤50 ppm (design target)* |
| Regeneration | Online gas-pulse reverse flush + periodic disassembly cleaning |
| Membrane life | Design life ≥3 yr, regenerable — no consumable cartridges |
| Structure | Data-center dedicated skid (IDC version) |
| Polishing strategy | 24/7 storage-tank kidney-loop continuous polishing |
| Typical duty | IDC / hospital / telecom long-stored standby fuel |
* Design target at membrane outlet under reference conditions — achieved performance depends on inlet fuel condition. Confirm against your fuel test data.
For data centers, Jingyuan systems are part of a fuel-readiness strategy — the standby tank is an insurance asset, and polishing is what keeps it claim-ready.
Continuous side-stream polishing of backup genset fuel — the standard data-center duty.
Fixed installation circulating several standby tanks across a campus — clean fuel on every start.
Wheeled unit rotated between tanks where one fixed system per tank is not justified.
| Installation Profile | Recommended Starting Point | Duty Basis |
|---|---|---|
| Single / small backup genset tanks | JY-DX5 · 5 m³/h | Compact standby-tank polishing |
| Mid-size campus standby inventories | JY-DF15 · approx. 8–12 m³/h | 100-element array |
| Multi-unit campus / larger inventory | JY-DX40 · 40 m³/h | Precision skid, explosion-proof as standard |
| Hyperscale, high-throughput sites | JY-DL60 · 60 m³/h | Pipeline-driven continuous duty |
| Many small tanks on a budget | JY-G100 · 2.5 m³/h mobile | Wheeled between tanks in rotation |
Guideline only — confirm sizing against your tank inventory, generator capacity and start regime. Our engineering team reviews every case.
Long idle periods let water condense and microbes grow.
Strips free water and captures particulates that foul injectors.
Membrane surface is cleared automatically — no element change-outs.
Gensets start and hold load when called upon.
Backup diesel sits idle for months or years between blackouts. Water condenses with every temperature cycle, microbes grow at the water–fuel interface and gum forms — exactly the contamination that disables a standby genset at the moment of demand.
No. Systems circulate fuel in a side stream, so the generator keeps running (and keeps the data hall powered) while polishing continues. Installation ties into existing tank connections.
The CIS membrane removes free and emulsified water (≥95%). Dissolved water is not removed — relevant only where a tight fuel spec demands fuel drying below saturation.
JY-DX5 (5 m³/h compact skid) is the entry choice for small backup genset and day tanks. JY-DF15 (approx. 8–12 m³/h deep purification system, IDC version) covers mid-size campus standby inventories with 24/7 kidney-loop polishing, JY-DX40 (40 m³/h) covers multi-unit campuses and larger standby inventories, JY-DL60 (60 m³/h) serves hyperscale, high-throughput sites, and the wheeled JY-G100 rotates between small tanks where one fixed system per tank is not justified.
Yes — fixed systems serve multiple tanks via a circulation manifold, and the mobile JY-G100 can be wheeled between tanks in rotation across a campus.
Clean fuel reduces filter plugging and injector stress during monthly load tests, and keeps tanks within water and cleanliness specification for emergency-power readiness audits — the failure points of most standby programs.
Tell us your generator capacity, tank layout and the fuel issue you are facing. You do not need to select a model yourself — an engineer reviews every request and recommends the right configuration.