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Spring Return Mechanical Diaphragm Pump
Mechanical Diaphragm pumps are suitable in case that:
- The dosed liquid contains small amounts of suspended solids
- The dosed liquid is a toxic solution
- A drip proof/air tight application is required
- High pressure is not required
Each pump is fitted with a standard gearbox reduction system and with a vertical mounted B14 shaped electric motor in accordance with UNEL-MEC specifications.
The motor power range is from 0.18 Kw up to 0.37 KW as the European standard: 3 phase voltages of 230/400V @ 50/60Hz, 4 pole and 1 phase voltages of 230/50/60 Hz or 110/60 Hz.
As motors conform to UNEL-MEC specifications, there are many available alternative options, including different voltages, insulation classes and special explosion proof versions.
The reduction gearbox is of a standard endless screw plus worm-wheel type, supported by bearings, fully lubricated in an oil-bath.
The mechanism for the variation of the stroke length is a positive fore-stroke, spring return type, that is operated by an eccentric.
Mechanical Diaphragm pumps are suitable in case that:
- The dosed liquid contains small amounts of suspended solids
- The dosed liquid is a toxic solution
- A drip proof/air tight application is required
- High pressure is not required
Each pump is fitted with a standard gearbox reduction system and with a vertical mounted B14 shaped electric motor in accordance with UNEL-MEC specifications.
The motor power range is from 0.18 Kw up to 0.37 KW as the European standard: 3 phase voltages of 230/400V @ 50/60Hz, 4 pole and 1 phase voltages of 230/50/60 Hz or 110/60 Hz.
As motors conform to UNEL-MEC specifications, there are many available alternative options, including different voltages, insulation classes and special explosion proof versions.
The reduction gearbox is of a standard endless screw plus worm-wheel type, supported by bearings, fully lubricated in an oil-bath.
The mechanism for the variation of the stroke length is a positive fore-stroke, spring return type, that is operated by an eccentric.
| Model | Qmax l/h | Pmax barg |
| D 050 N | 49 | 14 |
| D 100 N | 374 | 5 |
| D 101 N | 408 | 8 |
| D 121 N | 574 | 3 |
| D 122 N | 1400 | 6 |
Mechanical diaphragm dosing pump
"D" type mechanical diaphragm metering pumps are suitable for use when the liquid to dose contains small suspended solids and when high pressure is not required. The gearbox is a standard wormwheel reduction system coupled with a vertical mounted B14 shaped electric motor in accordance with UNEL-MEC specification. The mechanism for variation of the stroke length is a positive stroke spring return operated by an eccentric. Stroke adjustment can be done manually, electrically (4-20mA; Profibus) and pneumatically. Different multiple head units are available on request. All the series can be ATEX certified.
"D" type mechanical diaphragm metering pumps are suitable for use when the liquid to dose contains small suspended solids and when high pressure is not required. The gearbox is a standard wormwheel reduction system coupled with a vertical mounted B14 shaped electric motor in accordance with UNEL-MEC specification. The mechanism for variation of the stroke length is a positive stroke spring return operated by an eccentric. Stroke adjustment can be done manually, electrically (4-20mA; Profibus) and pneumatically. Different multiple head units are available on request. All the series can be ATEX certified.
|
Type |
Max. Capacity |
Max. Pressure |
|
|
D050N |
49 Lt/h | 10 Bar | |
|
D100N |
374 Lt/h | 5 Bar | |
|
D101N |
406 Lt/h | 8 Bar | |
|
D121N |
574 Lt/h | 3 Bar |
| Some standard execution | 11 | 12 | 13 | 23 | ||
| Pump Head | S.S.316 | PP/FRV | PVC | PVDF | ||
| Diaphragm | PTFE/NBR | PTFE/NBR | PTFE/NBR | PTFE/NBR | ||
| Valve seat | S.S.316 | PP | PVC | PVDF | ||
| Valve ball | S.S.316 | PYREX | PYREX | PYREX |
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