Pneumatic Air-Operated Double Diaphragm Pump 1/2in Inlet, Max Flow Rate 10n3/n

Description

This air-operated diaphragm pump is made of aluminum for greater durability and long life. The large flow rate also saves you time and improves efficiency. The pneumatic feature makes it safer and more reliable. And it is also suitable for construction, petroleum, chemical, pharmaceutical, electric power, and other fields.

Key Features

Diaphragm Pump: The pump without rotating parts, and shaft seal, diaphragm pumping medium in the pump's moving parts, the working medium is completely separated, and the transported medium will not leak out, so when pumping toxic, easy-to-play or corrosive media, will not cause environmental pollution and endanger personal safety.

High Efficiency: The air-operated diaphragm pump has a high head of 69m/ 226.38ft and a sucked lift of 5m/ 16.4ft, which can complete more effective pumping work in a shorter time.

Durable Material: The air-operated diaphragm pump is made of high-quality aluminum alloy, which is strong and rust-proof, more durable, and has a long service life. 

Good Sealing: It uses a buna-butadiene rubber ball valve to give it good sealing while providing the best air efficiency to provide you with a better user experience.

 User-friendly: This pump has a simple structure and few wearing parts, making it easier to install and maintain than other types of pumps. In addition, it does not need to use oil lubrication, even if idle, there is no effect on the pump, dedicated to providing you with the most convenient user experience. 

Safe and Reliable: Even if there is no media movement for a long time or a sudden stop due to unexpected circumstances, the pump will not be damaged. And it has a self-protection performance, when overloaded, the pump will automatically stop, and after restoring normal, it can start running again automatically. And it does not require electricity so it can be used safely even in flammable and explosive situations. 

Easy to Operate: It does not need to irrigate, and simply opens and closes the gas valve. And its head and flow rate can be steplessly adjusted by opening the gas valve.

Good Applicability: It flows spaciously and has good passing performance, allowing the passage of particles up to 4.5mm/ 0.177in diameter, making it possible to pump a wide range of media.

 Low Noise: This pump is equipped with a muffler, allowing it to operate with less noise, so you can have a quiet operating atmosphere.

 Protective Shipping: In order to prevent it from being damaged and bumped during transportation, we fill the package with anti-collision protection foam to protect your products to the maximum extent possible.

Customer Service: We aim to provide quality products and services. If you have any problems, please feel free to contact us. We will reply and solve the problem for you as soon as possible.

Details

Thickened Mounting Stand: Its thickened mounting stand makes it available for direct fixing, which makes it easy to install and also gives it good anti-shock and anti-drop capability to ensure smooth operation of the machine.

One-piece Molding Process: The pump adopts a one-piece molding process, which gives it a good seal and is not easy to leak.

Air-power Source: It adopts an air power source, which will not produce sparks' heat when operating, so you can use it with confidence. 

Application

This air-operated diaphragm pump is suitable for water and low-viscosity petroleum fluids, including diesel, kerosene, motor oil, and some waste oils. It can be widely used in mining, pharmaceutical, construction, petrochemical, water treatment, etc.

 Specification

  • Model: QBK-40L
  • Color: Silver
  • Condition: Brand New
  • Material: Aluminum Alloy, Buna-butadiene Rubber
  • Drive Mode: Pneumatic
  • Max Flow Rate: 10n3/n
  • Head: 0-69m/ 0-226.38ft
  • Exit Pressure: 6.9kgf/cm²
  • Sucked Lift: 5m/ 16.4ft
  • Max Grain Dia: 4.5mm/ 0.177in
  • Max Pressure: 7kgf/ cm²
  • Consumption Max Air: 1.7m³/min
  • Max Air Consumption: 0.6m³/min
  • Pump Inlet: 1/2in
  • Pump Outlet: 4in
  • Product Size: 34*16*47.5cm/ 13.4*6.3*18.7in
  • Package Size: 60*50*35cm/ 23.62*19.69*13.78in
  • Net Weight: 10kg/ 22.05lbs
  • Gross Weight: 11kg/ 24.25lbslbs 

Package Included

1* Air-Operated Double Diaphragm Pump

1* English & Chinese User Manual

Notes

Please retighten all fasteners before operation.

Please note that case creep and gasket material may cause the loosening of fasteners, which need to be retightened to ensure there are no liquid or air leaks.

When cleaning, give priority to flushing the pump with a solvent that is compatible with the pump fluid.

Please read the user manual carefully before use. And pay Particular attention to the safety instructions included.

Please allow the slight color difference caused by the shooting light and 1-3 cm error due to manual measurement, and make sure you do not mind before ordering.

 

 
We accept ebay payment 。
Fees such as import duties, taxes are not included in the item price or shipping costs. These charges are the buyer's responsibility.
Shipping:
 
2-9 working days to: USA
 
    •  
    • We maintain high standards of excellence and strive for hundred percent customer satisfaction. Feedback is very important to us. We hope that you contact us immediately before you give neutral or negative feedback, so that we can address your concerns. It is impossible to address issues if we do not know about them!
 
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Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. Our certified technicians have tested each item before shipping. The unit comes with 1 year limited warranty on all manufacturing defects.
a) If you receive a defective item, you may return it or ask for a discount. Please contact us within 14 days after you receive the package.
b) What you returned must be intact and in its original packaging as re? u. Customer is responsible for shipping costs of the returned item.
c) We will cover the cost of shipping back t with the shipping rate indicated in the registration page. We will send you a new unit or refund the full payment you paid.
Thank you.
Business Hour
Business Hour: Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
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On Dec 30, 2025 at 01:57:56 PST, seller added the following information:

Datacaciques