Introduction
QBK series pump is an air operated double diaphragm pump, which is driven by air. It is a kind of positive displacement pumps which volume changes caused by compressing diaphragms in both side. This pump not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self priming pump, slurry pump and impurity pump, etc.
| Working Principle: | Double Diaphragms, Pneumatic |
| Main applications: Â Â Â Â Â Â | Oil, Water, Chemical, etc. |
| Driver: | Air Operated |
| Max.permissible fluid temperature: | 150°C(302°F) |
| Type of connection: | Flange, Thread, Quick coupled |
| Installation position: | Connect to compressor |
| Casing parts material: | C.I, S.S, PP, Aluminium, PVDF, PTFE linning |
| Maximum grain diameter: | 10mm (3/8inch) |
| Maximum drive rating:Â | 7kgf/cm2 |
| Maximum caliber:Â Â | 100mm(4inch) |
| Maximum discharge-side pressure: | 6kgf/cm2 |
| Maximum head: | 50m(164ft) |
| Flow rate range: Â | 0.8-30m3/h(3.5-132US.GPM) |
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Application
Main specifications
|  Type |  Max Flow Rate (L/Min) |  Discharge pressure (Bar) | Sucked Lift (m) |  Max Grain Diameter (mm) | Max Air Consumption (L/min) |               Materical of Diaphragm | ||||
| Â una-N | Â Â Â Â Neoprene | EPDM | Viton | Teflon | ||||||
| QBY-8 | 16 | 6.9 | 5 | 1 | 300 | Y | Y | Y | Y | Y |
| QBY-10 | 20 | 6.9 | 5 | 1 | 300 | Y | Y | Y | Y | Y |
| QBY-15 | 20 | 6.9 | 5 | 1 | 300 | Y | Y | Y | Y | Y |
| QBY-25 | 100 | 6.9 | 5 | 2.5 | 600 | Y | Y | Y | Y | Y |
| QBY-40 | 140 | 6.9 | 5 | 4.5 | 600 | Y | Y | Y | Y | Y |
| QBY-50 | 240 | 6.9 | 5 | 8 | 900 | Y | Y | Y | Y | Y |
| QBY-65 | 280 | 6.9 | 5 | 8 | 900 | Y | Y | Y | Y | Y |
| QBY-80 | 400 | 6.9 | 5 | 10 | 1500 | Y | Y | Y | Y | Y |
| QBY-100 | 480 | 6.9 | 5 | 10 | 1500 | Y | Y | Y | Y | Y |
Product Images
Our Service
1. Delivery: Delivery time will be on time as the contract. Usually, the delivery time of diaphragm pump is 5-7 working days.
2. Warranty: 1Â year for the pump body, 3months for the main working parts.
3. Package: According to your quantity, we use strong carton or plywood case which is durable for ocean transport.
4. Shipping: By Sea, By Air and By International Express.
5. Payment: we can accept T/T, L/C , West Union and so on.
6. Pre-sales Service: According to your requirement, we will give you our profession advice of pump solution.
7. On-sales Service: We will clearly show you everything in fact when you place an order with us. We will takes photos or videos to show you our production situation.
8. After-sales Service: We will full report you the production progress and plan. Meanwhile, we will follow up the pump working conditions per three months when the pumps put into use, and can send the spare parts to you within one week if u need.
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