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Item #:
106316571
Dollate Air Operated Double Diaphragm Pump 1 inch Inlet/Outlet,QBY4-25L 35 GPM Dual Diaphram ,Air Diaphragm Pump Dual Diaphragm Air Pump 35 GPM Max
Item #:
106316571
MWK 703902
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Order now and get it around Thursday, July 30
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Built with a sturdy, leak-proof structure and premium PTFE diaphragms, our diaphragm pump is designed for long-term use and reliability in handling various fluids.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Flow Rate
Achieve up to 35 GPM, ensuring efficient pumping for various applications, making it ideal for industrial and commercial use.
Durable Design
Constructed with robust materials, this air diaphragm pump guarantees longevity and reliability, outperforming competitors in demanding environments.
Versatile Use
With a 1 inch inlet/outlet and capability of handling up to 120 PSI, the pump adapts effortlessly to different setups, solving diverse fluid transfer challenges.
Product Details
| Item Weight | 11 lbs (4.99 kg) |
Who Should Buy?
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Industrial Applications
Best suited for industries requiring reliable fluid transfer, like chemical manufacturing or wastewater management.
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Construction Sites
Ideal for construction environments needing efficient pumping of water, slurries, or other materials with high viscosity.
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Marine Operations
Perfect for marine applications, offering durability and resistance to corrosive materials found at sea.
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Home Use
Not ideal for household applications due to its size and capacity, which may be excessive for home needs.
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Low-Volume Tasks
Not suitable for small-volume applications where minimal fluid transfer rate is necessary, leading to inefficiency.
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Non-Professionals
Inexperienced users may struggle with installation or operation, requiring specialized knowledge for effective use.
Product Description
Dollate Air Operated Double Diaphragm Pump 1 inch Inlet/Outlet,QBY4-25L 35 GPM Dual Diaphram ,Air Diaphragm Pump Dual Diaphragm Air Pump 35 GPM Max 120PSI
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Customer Questions & Answers
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Question:
What are the main features of the Air Operated Double Diaphragm Pump QBY4-25L?
Answer: The QBY4-25L is designed with a 1 inch inlet and outlet, allowing for efficient fluid transfer. It has a maximum flow rate of 35 GPM and can handle pressures up to 120 PSI, making it suitable for various applications including chemical transfer, wastewater management, and food processing. The dual diaphragm construction ensures reliability and longevity, while the air-operated mechanism allows for operation in hazardous environments without the risk of electrical sparks. -
Question:
What applications are best suited for the QBY4-25L Air Diaphragm Pump?
Answer: The QBY4-25L is versatile and ideal for a range of applications such as transferring liquids in chemical plants, pumping slurries, and moving non-corrosive fluids in food and beverage operations. Its robust construction and high flow rate also make it effective in agricultural applications for spraying or fertilizing. Industries that require precise fluid management often depend on this pump for reliable and efficient performance. -
Question:
How does the air-operated mechanism of this pump work?
Answer: The air-operated mechanism uses compressed air to create a pressure differential, which activates the dual diaphragm to pump fluids. When air is introduced, it forces one diaphragm to collapse, drawing fluid in from the inlet side, while the opposite diaphragm pushes the fluid out through the outlet. This design minimizes wear and ensures smooth operation under various conditions, making it an excellent choice for continuous use in tough environments. -
Question:
Is the QBY4-25L compatible with various types of fluids?
Answer: Yes, the QBY4-25L can handle a variety of fluids, including water, chemicals, and oil-based liquids. Its materials are generally resistant to corrosion and abrasion, enhancing its adaptability to different substances. However, users should always check for compatibility with specific fluids to ensure optimal performance and avoid damage, especially when dealing with aggressive chemicals. -
Question:
What maintenance is required for the QBY4-25L Air Diaphragm Pump?
Answer: Regular maintenance includes checking for wear and tear on the diaphragms, inspecting air connections, and ensuring that there are no blockages in the inlet or outlet. Routine cleaning of all fluid-contact areas is also essential to prevent contamination. Maintaining proper air pressure levels will contribute to the longevity of the pump, ensuring it operates efficiently in its intended applications without unexpected downtime. -
Question:
Can this pump operate continuously without overheating?
Answer: Absolutely, the QBY4-25L is designed for prolonged use without overheating issues, thanks to its efficient air-operated diaphragm feature. The design keeps the pump cool during operations, allowing it to handle continuous tasks, especially in industrial settings where prolonged fluid transfer is routine. This makes it a reliable choice for users who need consistent performance over long periods. -
Question:
What are the advantages of using a double diaphragm pump over traditional pumps?
Answer: Double diaphragm pumps like the QBY4-25L are advantageous because they provide better self-priming capabilities and can handle higher viscosity fluids more effectively than traditional centrifugal pumps. They also reduce the risk of leaks, thanks to their enclosed design, and can operate dry without damage. This translates to greater safety and efficiency in applications where fluid transfer integrity is crucial. -
Question:
What is the weight and size of the pump?
Answer: The QBY4-25L typically has a lightweight yet sturdy construction, allowing for easy installation and movement. Its compact size makes it suitable for various setups, whether in a factory or a mobile application. This portability is vital when space is limited, ensuring users can place it in the most effective location for fluid management tasks. -
Question:
Where can I buy Air Operated Double Diaphragm Pump 1 inch Inlet/Outlet QBY4-25L in Malawi?
Answer: You can purchase the Air Operated Double Diaphragm Pump QBY4-25L from Ubuy, a reliable e-commerce platform in Malawi that offers a range of high-quality industrial equipment. Ubuy provides a seamless shopping experience, with various payment options and customer support to assist with your purchase, ensuring you get the right pump for your needs. -
Question:
What type of powering system does this pump require?
Answer: The QBY4-25L utilizes an air-powered system, meaning it requires a source of compressed air to operate effectively. This is a significant advantage in certain applications since it eliminates the need for electrical power sources, thus enhancing safety in flammable or volatile environments. Additionally, the air-powered system allows for easier portability and flexibility in setups where electricity may not be readily available.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
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“Not madly expensive like I thought, and much quicker than promised.”
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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MWK 703902
Order now and get it around Thursday, July 30
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Sturdy, leak-proof aluminum alloy casing ensures durability.
- Features double diaphragm design for optimal air efficiency.
- Premium PTFE diaphragms reliably handle corrosive and viscous fluids.
- Exits pressure up to 8 kgf/cm³ for effective fluid transfer.
- Widely applicable in industries like petroleum, metallurgy, and water treatment.
- Easy to maintain by tightening fasteners post-delivery.
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