Hollow disk pumps old models
Bare shaft pump
Electropump
Triple body electropump
Available seals for old pump series
The production of the old series of BMF hollow oscillating disc pumps began in the late '70s and we still produce the complete electropumps and all spare parts for our customers. The range of BMF old series oscillating hollow disk pumps includes single body pumps of size M35, M55, M65 and M85 and triple body pumps of size T100 and T130. We underline that the triple-body hollow oscillating disk pump was created by Belli Meccanica in the early 1980s thanks to the inventor Belli M. who obtained in 1982 the patent for industrial invention no. 1168336. Since 2008 this type of pump has been joined by the new series of second generation BMF hollow disk pumps which offers superior performance and greater reliability in heavy duty and process applications. For finding out more about the main differences between the new and the old series, we recommend consulting the comparative chart.
| SIZE | Ø PIPES | FLOW MAX | MOTOR POWER |
|---|---|---|---|
| M 35 | 1- 1/4" - 2" | 3500 l/h | kW 0,75 |
| M 55 | 2" | 7000 l/h | kW 1,5 |
| M 65 | 2- 1/2" | 14000 l/h | kW 2,2 |
| M 85 | 3" | 30000 l/h | kW 4 |
| SIZE | Ø PIPES | FLOW MAX | MOTOR POWER |
|---|---|---|---|
| T 100 | 4" | 45000 l/h | kW 7,5 |
| T 130 | 5" | 90000 l/h | kW 15 |
TYPE |
IMPELLER/SHAFT |
COVER/BODY |
BASE |
FIELD OF APPLICATION |
|---|---|---|---|---|
| 1 | CARBON STEEL | CAST IRON GJL250 | CAST IRON GJL250 |
PETROLEUM PRODUCTS, DIESEL, PETROL, KEROSENE, RFO HEAVY OIL, CRUDE OIL, BITUMEN, PARAFFIN, PAINTS, GLUES, RESINS, ISOCYANATE, SOLVENTS, FATS, OILS, PALM OIL, MELASSE, STARCH, WASTE, EXHAUSTED OIL, EXHAUSTED OIL |
| 2 | STAINLESS STEEL | BRONZE B14 CuSn6 | CAST IRON GJL250 |
SOAP, PATCHES, OIL WATERS, LUBRICANTS LIQUIDS, SOLVENTS |
| 5 | STAINLESS STEEL | NI RESIST | CAST IRON GJL250 |
OILS, BASIC LIQUIDS, WATER-BASED PAINTS, EMULSIONS, SURFACTANTS, GLUCOSE, SYRUP |
| 7 | STAINLESSSTEEL | NI RESIST | INOX STEEL |
EXTRA VIRGIN OLIVE OIL, FOOD LIQUIDS, CHOCOLATE, GLUCOSE, SYRUP, CORROSIVE PRODUCTS, SOAP, SURFACTANTS SYRUP |
| 8 | STAINLESS STEEL | CAST IRON GJL250 | CAST IRON GJL250 |
PETROLEUM PRODUCTS, DIESEL, PETROL, KEROSENE, RFO HEAVY OIL, CRUDE OIL, BITUMEN, PARAFFIN, PAINTS, GLUES, RESINS, ISOCYANATE, SOLVENTS, FATS, OILS, PALM OIL, MELASSE, STARCH, WASTE, EXHAUSTED OIL, EXHAUSTED OIL |
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|---|---|---|
Old BMF models |
New BMF models from 2008 |
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| Flange | Non-standard welding flanges | STANDARD UNI ISO PN10-PN16 |
| Body gasket |
Glue and paper gasket |
Orings (NBR/VITON/PTFE/KARLEZ) |
|
Seals |
Limited by dimensions |
Installation of evey type of seal allowed ( double, flushed, cartridge, Api plans) thanks to the wide stuffing box. Back pull out replacable seal design without dismantling pump body |
|
Shaft |
On roller bearings or crome plated on bearing bushings |
Oversized on roller bearings or on bushing bearings with hardened replaceable wearing bushing |
| Pump-gearmotor alignment |
Not guided with spring end cup |
Lateral guided without spring en cup |
| Hollow disk | Standard |
Hollow disk with reduced eccentricity with wider sliding sufaces (less pulsation and greater suction capability) |
| Pump-gearmotor alignment |
With feet and elastic coupling, manual alignment |
Flanged in axis (no vibrations, no overloads on bearings) |
| Bypass valve | Standard |
Wide passage bypass valve with replaceable valve seat and spring |
