DN125 Pneumatic Double Diaphragm Air Pump 1041LPM Dry Proof
DN125 Pneumatic Diaphragm Pump, Air operated double diaphragm pump manufacturers
Descriptions
This DN125 aluminum alloy, sturdy air operated diaphragm pumps are ideal solution for the large volume transfer of various harshly liquid fluid, such as: chemical, waste water, cement, paper pulpe, syrup, sewage, slurry, honey, paint, oil, petroleum, etc. It's a type of positive displacement pump that uses compressed air as a power source. The compressed air is shifted from one chamber to the other by a linked shaft that allows the chambers to move simultaneously. The pumps' wet part: PVDF, PP, stainless steel, cast steel, al-alloy, iron, etc. It's also known as double acting air diaphragm pump. As one professional air operated diaphragm pump manufacturer, we've been in design and manufacture of diaphragm pump over 15 years. It has triple diaphragm films.
- Self priming
- Dry proof
- High suction capacity
- No electric components
- Discharge outlet with protection
- Solid external sturcture
- Vast compatibility of fluid media
- Reduced internanal volume minimize the waste and easily clean
- Stainless steel bolt are corrosion resistant, and offer you reasonable positioing and conveniently reassemble
- Unique designed three way control valve ensure no block operation, easily parts maintenance, no need lubrication for air pipeline
- Worn resistance parts ensures precisely positioning of stem and fast replacement
Technical data sheet
| Model |
Max flow (LPM) |
Head(m) |
Suction H (m) |
Out P (kg) |
In/out dia(mm) |
Air in dia(in) |
Max particle dia (mm) |
| RQB3-10 | 22 | 70 | 4.0 | 7 | 10 | 1/4 | 1.5 |
| RQB3-15 | 22 | 70 | 4.0 | 7 | 15 | 1/4 | 1.5 |
| RQB3-20 | 57 | 70 | 4.0 | 7 | 20 | 1/4 | 2.5 |
| RQB3-25R | 57 | 70 | 4.5 | 7 | 25 | 1/4 | 2.5 |
| RQB3-25A | 116 | 84 | 5.48 | 8.4 | 25 | 1/2 | 3.2 |
| RQB3-32 | 151 | 84 | 5.48 | 8.4 | 32 | 1/2 | 3.2 |
| RQB3-40 | 151 | 84 | 5.48 | 8.4 | 40 | 1/2 | 3.2 |
| RQB3-50 | 378.5 | 5.48 | 8.4 | 50 | 1/2 | 4.8 | |
| RQB3-65 | 378.5 | 84 | 5.48 | 8.4 | 65 | 1/2 | 4.8 |
| RQB3-80 | 568 | 84 | 5.48 | 8.4 | 80 | 1/2 | 6.4 |
| RQB-100 | 568 | 84 | 5.48 | 8.4 | 100 | 1/2 | 6.4 |
| RQB-125 | 1041 | 84 | 2.4-7.6 | 8.4 | 125 | 3/4 | 9.4 |
| RFQ-25 | 116 | 84 | 5.48 | 8.4 | 25 | 1/2 | 3.2 |
| RFQ-40 | 378.5 | 84 | 5.48 | 8.4 | 40 | 1/2 | 4.8 |
| RFQ-50 | 568 | 84 | 5.48 | 8.4 | 50 | 1/2 | 6.4 |
| RFQ-80 | 1041 | 84 | 2.4-7.6 | 8.4 | 80 | 3/4 | 9.4 |
Air compressor recommendation & filter press
| Model | Air consumption (m3/min) | Power of compressor | Filter press capacity (m2) |
| RQB3-10/15 | 0.18 | 2.2 | 10-20 |
| RQB3-20/25 | 0.36 | 3 | 10-20 |
| RRQ3-25 | 0.67 | 5.5 | 30-40 |
| RQB3-25A | 0.67 | 5.5 | 30-40 |
| RQB3-32/40 | 0.67 | 5.5 | 30-40 |
| RFQ3-40 | 0.9 | 7.5 | 50-60 |
| RQB3-50/65 | 0.9 | 7.5 | 50-60 |
| RFQ3-50 | 1.5-2 | 11-15 | 60-100 |
| RQB3-80/100 | 1.5-2 | 11-15 | 60-100 |
| RFQ3-80 | 3.0 | 18.5-22 | 100-120 |
| RQB3-125 | 3.0 | 18.5-22 | 100-120 |
Features


Applications:
| Waste water treatment, sludge, screening | Effluent treatment plant | Pharmaceutical feeds, transfer |
| Automotive wash, lube, oil | Ceramics mix & cast, glaze | Chemical injection, process |
| Pulp & paper batching, bleaching | Construction coating, dewatering | Food processing transfer, packaging |
| Marine bilge, cleaning | Mining utility, dewatering | Oil & gas transfer, clean up |
Comptetitve advantage
The air-driven double diaphragm transfer pumps. No electrical components are required because the pumps are air-driven. RD series pumps are run-dry safe and self-priming. The pump capacity can be controlled by changing the pressure in the air supply. The air control is designed for oilfree operation. The RD series pumps are ideally suited for the transport of liquid chemicals. It transports media at up 6,700 l/h and up to a discharge lift of 70 m.
As the pump capacity is highly dependent on the back pressure, the performance curve must always be observed. At the sametime, the differential pressure between the hydraulic and pneumatic sides should not exceed 2 bar. Higher values reduce the service life of the pump. When selecting pumps, check the material compatibility. In addition, consider the density, viscosity and temperature of the transported medium.
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