1/2 Inch 57lpm PP Air Operated Double Diaphragm Pump
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Product Highlights
- Customizable Fluid Chamber: Fluid chamber available in Polypropylene, PVDF, SS304, or SS316.
- High Max Flow Rate: Maximum flow rate reaches 57 Lpm for efficient pumping.
- High Max Head: Capable of lifting liquid up to 70 meters.
- Corrosion Resistant: Designed with corrosion performance for harsh media.
- Fast Delivery: Standard delivery time is 5-7 working days.
- Comprehensive Warranty: 1 year warranty for pump body, 3 months for main parts.
- CE & ISO Certified: Certified with ISO9001:2008 and CE standards.
Product Attributes
- Customization
- Available
- After-sales Service
- Remote Guidance
- Warranty
- 1 Year
- Model NO.
- QBK15PP-TF-TF-PP
- Certification
- ISO9001:2008, CE
- Rated Current
- 0
- Voltage
- 0
- Material
- Plastic
- Power
- Pneumatic
- Valve Body Type
- Diaphragm
- Function
- Pneumatic Type
- Diaphragm Material
- Poly Ethylene Forty-Six
- Performance
- Corrosion
- Fluid Chamber
- Polypropylene or PVDF, SS304 or SS316, Al
- Diaphragm
- PTFE or Santoprene, Viton etc
- Ball Valve
- PTFE or PP
- Ball Seat
- PTFE or PP
- Max Flow
- 57 Lpm
- Max Head
- 70 M
- Max Pressure
- 7 Bar
- Inlet & Outlet
- Thread BSPT or NPT
- Max Suction Lift
- Dry 4m, Wet: 7.6m
- Max Particle Dia
- 2.5mm
- Air Inlet
- 3/8 Inch
- Max Air Pressure
- 8.4 Bar
- Transport Package
- Carton for Qbk15PP-TF-TF-PP
- Specification
- 9.8 kg for 0.5inch PP pump
- Trademark
- DEFU
- Origin
- China
- HS Code
- 8413910000
- Production Capacity
- 10000PCS/Year
Product Images of 1/2 Inch 57lpm PP Air Operated Double Diaphragm Pump
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Product Description
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.
2.Product Advantage
3.Models For Clients Choosing
| Model | Flow Rate (m3/h) |
Head ( m) |
Suction Stroke ( m) | Max. Particle Diameter (mm) | Air Inlet Size (inch) |
Max.Air Pressure (kg/cm2) |
Max.Air Consumption (m3/min) |
| QBK-06 | 0-1.62 | 0-84 | 6.4 | 1.6 | 1/4 | 7 | 0.14 |
| QBK-10 | 0-1.62 | 0-84 | 6.4 | 1.6 | 1/4 | 7 | 0.14 |
| QBK-15 | 0-3.42 | 0-84 | 7.6 | 2.5 | 3/8 | 8.4 | 0.56 |
| QBK-20 | 0-3.42 | 0-84 | 7.6 | 2.5 | 3/8 | 8.4 | 0.56 |
| QBK-25 | 0-9.42 | 0-84 | 8 | 4 | 1/2 | 8.4 | 1.12 |
| QBK-40 | 0-21.48 | 0-84 | 8 | 5 | 1/2 | 8.4 | 2.24 |
| QBK-50 | 0-35.22 | 0-84 | 8 | 6 | 1/2 | 8.4 | 2.8 |
| QBK-80 | 0-63.6 | 0-84 | 8 | 9.4 | 1 | 8.4 | 9.8 |
4.Spare Parts Showing
5.Pump Instruction

6.Applications
7.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: 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 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.
8.Factory Show
Warmly Welcome To Visit Our Factory,Any Question Pls Feel Free To Contact Me
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR223593". Items marked "" are certified.
Company Profile
WENZHOU DEFU MACHINERY Co., Ltd was founded in 2012 dedicated to pump research & development, manufacturing and sales, with our main product line including centrifugal pumps, air operated diaphragm pumps, mixed flow pumps, rotary lobe pumps and other pump types.
Defu acquired Shanghai Y&L Pump Factory, SELE Pump in the past few years, and founded Fuding Cornell E-Pump Manufacture in 2019, further enhancing our manufacturing capability.
Our producing base spans nearly 5, 000 square meters, and we are equipped with several CNC machine tools such as a 63T horizontal CNC machine center for one-stop machining of pump body, including turning, boring, drilling, milling and other processes, allowing for high precision. Our company has a maximum monthly output of 1500 high quality pumps due to several CNC machines and 3- cordinate measuring machine.
Defu has established an integrating performance testing center for finished pumps, where all parameters are examined precisely, including the maximum flow rate, maximum head, shaft power, NPSH (net positive suction head), bearing temperature rise, noise and vibration and more to ensure each pump has the highest possible quality.
Our products have been successfully exported to the United States of America, Australia, New Zealand, Thailand, Indonesia, South Africa, Kenya and other countries, earning significant praise from our clients. Our mission is to provide you the highest quality product and we would sincerely like to thank you.
We look forward to work together with more domestic and foreign customers for the development of pump field to work together!
About Our Factory & Business Background
- Address
- Room 515, a Building, No. 209 Wenchang Road, Foreign Agricultural Comprehensive Development Zone, Wenzhou, Zhejiang, China
- Terms of Payment
- LC, T/T, PayPal, Western Union
- International Commercial Terms(Incoterms)
- FOB, CFR, CIF, EXW
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- shanghai,ningbo
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2018-03-23
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What materials are available for the fluid chamber?
- The fluid chamber can be customized to Polypropylene, PVDF, SS304, or SS316.
- What is the maximum flow rate of this pump?
- The maximum flow rate is 57 Lpm.
- What is the maximum head height this pump can achieve?
- The pump can achieve a maximum head of 70 meters.
- What is the warranty period for the pump?
- We provide a 1-year warranty for the pump body and 3 months for the main working parts.
- What is the standard delivery time?
- The usual delivery time is 5-7 working days.
- What payment methods are accepted?
- We accept T/T, L/C, PayPal, and Western Union.
- What certifications does the pump have?
- The pump is certified with ISO9001:2008 and CE.
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