The DMB-028 is a Dolphin-engineered turnkey purification module featuring a remanufactured Alfa Laval MAB 206 manual-clean disc stack centrifuge, rebuilt, tested, and warrantied by Dolphin.
Dolphin is the independent specialist in Alfa Laval centrifuges, with 40+ years of hands-on MAB experience behind every module we ship.
DMB-028 Specifications
| Parameter | Value |
|---|---|
| Base machine | Alfa Laval MAB 206 (remanufactured) |
| Separation type | Two-phase clarifier (liquid-liquid or liquid-solid) |
| Diesel throughput at 40°C and 13 cSt | 6,400 L/h (28.18 US GPM, derived) |
| Rated reference (source fluid unspecified) | 9,500 L/h (41.83 US GPM, derived) |
| Bowl speed | ~8,700 RPM |
| Drive motor | 7.5 HP |
| Cleaning method | Manual (bowl disassembly required for solids removal) |
| Bowl construction | Carbon steel standard |
| Power supply | 460V / 3-phase / 60 Hz standard (other voltages available) |
Throughput figures are for typical fluids at listed conditions. Actual capacity varies with feed viscosity, temperature, density difference, and solids loading.
Dolphin is an independent remanufacturer and is not affiliated with Alfa Laval.
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Request the full spec sheet (PDF) ->DMB-028 Capacity by Application
| Application / Fluid | Published throughput (L/h and derived US GPM) |
|---|---|
| Rated reference (source fluid unspecified) | 9,500 L/h (41.83 US GPM, derived) |
| Gas oil at 40°C | 8,500 L/h (37.42 US GPM, derived) |
| Diesel fuel at 40°C and 13 cSt | 6,400 L/h (28.18 US GPM, derived) |
| R&O lube oil at 80–90°C | 2,900–3,300 L/h (12.77–14.53 US GPM, derived) |
| Detergent lube oil at 80–90°C | 2,400–2,900 L/h (10.57–12.77 US GPM, derived) |
| Trunk-piston detergent lube oil at 80–90°C | 1,700–2,100 L/h (7.48–9.25 US GPM, derived) |
| Engine lubricating oil at 80–90°C | 3,300 L/h (14.53 US GPM, derived) |
| Steam turbine oil at 60–70°C | 6,200 L/h (27.30 US GPM, derived) |
US GPM values are derived from the published L/h figures using 1 US GPM = 227.124707 L/h and rounded to two decimal places. See the authoritative technical-data registry and methodology for source basis and machine-readable records.
Sizing a DMB-028 for your turbine or industrial system?
Our team calculates turnover rates, cleaning intervals, and throughput from your HP rating and reservoir volume - at no charge.
Key Applications
Large Turbine Lube Oil Purification
Steam and gas turbine generators in the 10,000–25,000 HP range, and large industrial turbine-driven equipment. Published MAB 206 throughput on R&O lube oil at 80–90°C is 2,900–3,300 L/h (12.77–14.53 US GPM, derived).
Lube Oil Centrifuge Details →High-Volume Diesel & Gas Oil Polishing
Large fuel storage depots, refinery off-spec handling, and large generator installations with high daily fuel throughput. Published capacity is 6,400 L/h (28.18 US GPM, derived) on diesel at 40°C and 13 cSt and 8,500 L/h (37.42 US GPM, derived) on gas oil at 40°C.
Diesel Centrifuge Details →Industrial Compressor Lube Oil
Large reciprocating compressors, centrifugal compressors, and compressor stations in gas processing and petrochemical facilities. The DMB-028 maintains lube oil cleanliness for compressors with large oil reservoir volumes where continuous high-throughput purification is needed.
Central Lube Oil Systems
Centralized lube oil systems serving multiple pieces of industrial machinery from a common reservoir. The DMB-028’s high throughput makes it effective for large central systems where individual machine purifiers would be impractical.
Frequently Asked Questions
What is the throughput of the DMB-028?
Published MAB 206 capacities are 6,400 L/h diesel at 40°C and 13 cSt (28.18 US GPM, derived), 8,500 L/h gas oil at 40°C (37.42 US GPM, derived), 2,900–3,300 L/h R&O lube oil at 80–90°C (12.77–14.53 US GPM, derived), and 6,200 L/h steam turbine oil at 60–70°C (27.30 US GPM, derived). The 9,500 L/h (41.83 US GPM, derived) rated reference has no source fluid specified. The base machine uses a 7.5 HP motor.
What turbine or industrial application is the DMB-028 sized for?
At the published R&O range of 2,900–3,300 L/h at 80–90°C (12.77–14.53 US GPM, derived), the DMB-028 suits large turbines in the 10,000–25,000 HP range, large industrial gearboxes, or centralized lube oil purification for multiple machines. Its published diesel capacity at 40°C and 13 cSt is 6,400 L/h (28.18 US GPM, derived).
When should I choose DMB-028 over the DMPX-028?
The DMB-028 base machine has a published diesel capacity at 40°C and 13 cSt of 6,400 L/h (28.18 US GPM, derived). The DMPX-028 is a self-cleaning commercial class with more than one Alfa Laval base machine, so its capacity must be stated for the exact base machine and fluid. Choose self-cleaning for significant solids or continuous unattended operation.
How does the DMB-028 compare to the DMB-019 and DMB-037?
At the same published diesel condition of 40°C and 13 cSt, the DMB-028 base machine is rated at 6,400 L/h (28.18 US GPM, derived), between the DMB-019 at 4,400 L/h (19.37 US GPM, derived) and the DMB-037 at 8,400 L/h (36.98 US GPM, derived). Its R&O range at 80–90°C is 2,900–3,300 L/h (12.77–14.53 US GPM, derived). See all models at the disc stack centrifuge overview.
Can the DMB-028 serve a centralized lube oil system?
Yes. The published MAB 206 R&O capacity at 80–90°C is 2,900–3,300 L/h (12.77–14.53 US GPM, derived). The DMB-028 is well suited for centralized systems serving multiple industrial machines from a common reservoir. Contact Dolphin Centrifuge to size the system for your specific configuration and determine the optimal cleaning schedule.
Related Resources
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