Specification of air operated double diaphragm pump                                                                

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.

1. The air diaphragm pump has the function of self priming without rotating parts. It can achieve dry priming and wet priming, which self -priming height is 5m and 8m respectively.

2. With sectional type structure, this self -priming pump can be used for conveying two different liquid by double diaphragm.

3. Our pump can be used directly as a submersible pump, it uses air as the power source, and does not have the leakage and other security risks. This diaphragm pump has lower cost than submersible pump which is caused by the maintenance of motor.

4. Pumps provide stall-free, ice-free operation.

5. Bolt joint design provides even sealing pressure for optimal performance.

6. Diaphragm,ball and ball seat adopt imported materials with longer service life.

7. Due to their pneumatic motor, they could be used in potentially explosive areas.

8. Can pump corrosive, volatile, flammable, poisonous fluids with particles and high viscosity.

Established in 2002, Shanghai YL Pump Co., Ltd is a professional manufacturer and exporter that is concerned with the design, development and production of Diese Engine Pump, Centrifugal Pump, Diaphragm Pump and some others. 

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1. Delivery: Delivery time will be on time as the contract. Usually, the delivery time of pump is 7 working days.

2. Warranty: 1 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 or By International Express, such UPS, DHL.

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.