Fittings and adapters
MAF25C MR-624 Direct Drive Blower + 250x370 to DN500 Flanged Adapter
- Bounding box
- 2381.8 × 858.1 × 1396.0 mm
- Engine
- Precision B-rep
- Parameters
- 31
- Published
- November 5, 2026
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The prompt
Upgrade previously shape-corrected Marvel Air Flow MAF25C 30HP direct-drive blower assembly by adding an IN-LINE HOLLOW stainless rectangular-to-round transition to existing left-facing horizontal 250x370mm outlet. Match original 350x470mm 14xØ14 rectangular bolt pattern. Provide a 650mm gradual 250x370 -> DN500 transition expanding towards -X with 4mm wall, DN500 clear bore, 150mm circular straight pipe end, and provisional 620OD/580PCD 16xØ14 circular duct flange. Keep all existing fan geometry, outlet damper, inlet, impeller, motor and foundation in correct original positions. This CAD is preliminary only; duct flange supplier and pressure losses to be verified.
Parameters
| Name | Value | Range |
|---|---|---|
| Base width in elevation | 690 mm | 680 – 730 |
| Base length inlet-to-motor | 850 mm | 820 – 900 |
| Base channel height | 100 mm | 95 – 120 |
| Base channel web/flange | 50 mm | 45 – 65 |
| Fan shaft X datum | 0 mm | -50 – 50 |
| Motor/impeller shaft elevation | 630 mm | 620 – 650 |
| Volute axial thickness (estimated) | 335 mm | 315 – 375 |
| Volute wall thickness (estimated) | 6 mm | 4 – 8 |
| Inlet flange clear bore | 355 mm | 345 – 365 |
| Inlet flange outside diameter | 455 mm | 450 – 465 |
| Inlet flange PCD | 410 mm | 400 – 420 |
| Connection bolt-hole diameter | 14 mm | 13 – 16 |
| Impeller diameter from GA model designation | 570 mm | 550 – 610 |
| CCW impeller blade count (estimated) | 10 | 8 – 12 |
| Outlet clear Y width | 250 mm | 240 – 270 |
| Outlet clear Z height | 370 mm | 350 – 390 |
| Outlet flange outer width | 350 mm | 340 – 370 |
| Outlet flange outer height | 470 mm | 450 – 490 |
| Top of horizontal outlet opening | 1271 mm | 1260 – 1285 |
| Outlet damper axial projection | 375 mm | 360 – 410 |
| 30 HP motor frame body OD (estimated) | 260 mm | 230 – 300 |
| 30 HP motor body length (estimated) | 315 mm | 290 – 360 |
| Direct drive motor front y datum | 95 mm | 65 – 125 |
| Motor mounting plate gauge | 12 mm | 10 – 16 |
| 250x370 to DN500 expansion length | 650 mm | 500 – 1100 |
| Round outlet clear bore DN500 | 500 mm | 450 – 550 |
| DN500 straight duct end length | 150 mm | 100 – 300 |
| DN500 duct flange outer diameter (provisional) | 620 mm | 590 – 670 |
| DN500 flange bolt PCD (provisional) | 580 mm | 550 – 620 |
| DN500 air duct flange bolt count | 16 | 12 – 20 |
| Transition sheet wall thickness | 4 mm | 3 – 6 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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