Our company is one of the few manufacturers who have produced the 3rd generation of pneumatic diaphragm pumps. Those pumps are widely used in large amount of fields.
- Scope of Application
Field Application Suitable fluid
| Maritime | Drainage and transportation | Sewage Sea water Diesel oil |
| Electricity | Drainage and transportation | Waste water strong acid strong alkaline |
| Automobile | Supply and transportation | sealant Adhesive composition Plating liquor Solvent Paint |
| Chemical Industry Production | Supply and transportation | Soap cleaning agent binder printing ink cleaning/polishing paint/dye shear-sensitive materials |
| Mine | Drainage | Sewage Truid water Thin slurry |
| Medicine | Supply and transportation of food and medicine materials | FDA materials |
- MODELS OF PNEUMATIC DIAPHRAGM PUMPS
QBY3-8 QBY3-10/15 QBY3-20/25 QBY3-25A QBY3-32/40 QBY3-50/65 QBY3-80/100 QBY3-125 Body materials
PP cast steel/ aluminum alloy/ PP/ stainless steel/ PTFE cast steel/ aluminum alloy/ PP/ stainless steel/ PTFE cast steel/ aluminum alloy/ PP/ stainless steel/ PTFE cast steel/ aluminum alloy/ PP/ stainless steel/ PTFE cast steel/ aluminum alloy/ PP/ stainless steel/ PTFE cast steel/ aluminum alloy/ PP/ stainless steel/ PTFE cast steel/ aluminum alloy/ PP/ stainless steel/ PTFE Caliber
( mm )
8 10/15 20/ 25 32/40 50/65 80/100 125 Fluid flow
( m³/h )
0~1 0~1 0~3 0~7 0~9 0~21 0~34 0~60 Pressure
( bar )
7 7 7 8.4 8.4 8.4 8.4 8.4 Fluid inlet/outlet size
( in. )
1/3 3/8 3/4~1 1-1/2 1-1/4~1-1/2 2~1-1/2 3-1/4~4 5 Air inlet size
( in. )
1/4 1/4 1/4 1/2 1/2 1/2 1/2 3/4 Suction lift
( m )
Dry suction 2.5~3 2.5~3 4.5 5.48 5.48 5.48 5.48 2.4 Wet suction 7.6 7.6 Head
( m )
50 50 70 70 70 70 70 70 MAX. permitted grain
( mm )
2.5 1.5 2.5 3.2 3.2 5.48 6.3 2.5 MAX. air consumption
( scfm )
9.0 9.0 28 60 60 125 175 325
- CODE OF MATERIALS FOR PUMP BODY
Types of pneumatic diaphragm pumps can be referred to the following codes.
| Body materials | Code |
| Cast steel | G |
| aluminum alloy | L |
| Engineering plastic(PP) | S |
| Stainless steel | P |
| Fluoroplastic | F |
- SUPERIORITIES
1. Convenient maintenance. The lower internal capacity enable the reduce of resource waste and make it easy to clean.
2. Cowpact external structure. Accessories, made with special processing, are allowed to operate under adverse circumstances.
3. Fluid compatibility: there are several types of body materials in supply: stainless steel, cast steel, polypropylene(PP), aluminum alloy, polytetrafluoroethylene(PTFE),etc.




