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VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
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VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil
VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil

VEVOR Air Operated Double Diaphragm Pump, 25 GPM, 1 inch Inlet & Outlet Pneumatic Waste Oil Transfer Pump, Max 100 PSI, Polypropylene Body, Air-Operated for Diesel, Grease, Kerosene, Gasoline & Oil

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Features & Details

  • Durable & Leak-Proof: Equipped with a PP pump body and PTFE diaphragms for heat and corrosion resistance. This air operated diaphragm pump features a full-bolt structure for a secure seal. Built for long-term use, it runs dry without damage
  • Powerful Pneumatic Performance: Delivers 25 GPM max flow rate, 100 PSI max pressure, and 226 ft max head lift. This air diaphragm pump quickly and efficiently transfers liquids to target tanks in minutes without worrying pressure
  • Standard Port Size: Designed with industry-standard ports that integrate seamlessly with your existing piping and fittings. Our air operated transfer pump ensures stable airflow, enhanced pneumatic performance, and reliable operation
  • Versatile Liquid Handling: This pneumatic transfer pump handles waste oil, hydraulic oil, gasoline, diesel, detergents, and even beverages. Works with acidic and alkaline liquids, but not recommended for abrasive media or liquids above 140℉/60℃
  • Wide-Ranging Applications: This waste oil pump is ideal for petroleum, metallurgy, printing, water treatment, and automotive industries. Contractors can count on it for asphalt, paints, and other viscous fluids—or build a home rainwater collection system

Product specification

  • Item Model Number QBK-25
  • Maximum Flow Rate 25 GPM/95 L/min
  • Maximum Pressure 100 PSI
  • Maximum Head Lift 226 ft/68.88 m
  • Max Suspended Solids 0.1 in/2.5 mm
  • Material PP + Aluminum Alloy

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About this item

Product specification
Item Model Number
QBK-25
Maximum Flow Rate
25 GPM/95 L/min
Maximum Pressure
100 PSI
Maximum Head Lift
226 ft/68.88 m
Max Suspended Solids
0.1 in/2.5 mm
Material
PP + Aluminum Alloy
Description
25 GPM PP Air-Operated Diaphragm Pump
Featuring PTFE diaphragms and a full-bolt structure for a secure seal and long-lasting reliability. With a 25 GPM max flow, 226 ft max head lift, and standard port size, it easily transfers waste oil, and various acidic or alkaline liquids, not suitable for abrasive media or liquids above 140℉/60℃.
Key Features
Standard Ports
Our air operated diaphragm pump features a professional pneumatic design with industry-standard ports, integrating seamlessly with your piping system for secure and dependable performance.
Sealed Ball Valve
Equipped with a sealed ball valve, our air-operated diaphragm pump avoids backflow while allowing quick access to the valve and liquid cover for easy inspection and maintenance.
PTFE Diaphragm
Provides outstanding resistance to industrial fluids, high temperatures, and abrasion. Our pneumatic waste oil transfer pump is simple to maintain and ideal for industrial liquid transfer tasks.

Transfer Liquids Easily with the VEVOR Air Operated Double Diaphragm Pump

Moving thick oils or chemicals by hand is a messy, slow, and dangerous chore. The VEVOR air operated double diaphragm pump takes the stress out of fluid transfer by using compressed air instead of electricity. It provides a fast, leak-resistant way to move thick industrial sludge and compatible everyday liquids.


This pump is built with a tough plastic body and leak-proof seals to ensure long durability. It can move up to 25 gallons per minute and handle high pressure. Since it runs on air rather than electricity, you can safely move flammable fluids without worrying about sparks. The ports fit perfectly, and the pump primes itself, so setup is quick and operation is smooth.


Minimized Leaks with PP Body, Aluminum Valve, and PTFE Diaphragm

Our diaphragm pump features a rugged polypropylene body and a high-grade aluminum air valve to withstand high pressure. This durable construction keeps the housing perfectly aligned and prevents the seals from shifting. Inside, the PTFE diaphragms offer incredible resistance to harsh chemicals, so the parts won't break down even when moving strong acids.


Because these diaphragms stay flexible and intact, you get a steady flow that helps reduce the risk of contamination. The design also ensures a seamless fit with your pipes, closing gaps where leaks often start. With flat sealing and precision ports, the pump provides a secure start every time you turn it on. Instead of worrying about constant repairs or tightening loose fittings, you can enjoy smooth operation and focus on your work.


Fast Liquid Transfer Up to 25 GPM with 226 ft Maximum Head Lift

If you want to move large amounts of liquid quickly without wasting your whole day, the VEVOR air operated double diaphragm pump is the perfect tool for the job. It delivers a powerful flow of 25 gallons per minute, allowing you to empty large tanks in just a few minutes. Moving volume this quickly means you spend less time waiting and more time being productive. It also has a maximum head lift of 226 ft, giving it the strength to push fluids vertically or across long distances. This extra pressure ensures that even heavy liquids reach their destination without slowing, preventing clogs that often occur with weaker pumps.


This pump is also built to handle a wide range of compatible liquids. It works perfectly for food like milk, juice, and oils, but it is also tough enough for harsh chemicals and thick slurries. Whether you are moving smooth syrup or gritty mixtures, the pump keeps a steady pace without wearing out. Make sure your liquids stay below 140°F to keep the pump running smoothly for years.


Standard 1-Inch NPT Inlet/Outlet Ports and 1/2-Inch Air Port for Easy Integration

Our air-operated double diaphragm pump features 1-inch NPT inlet and outlet ports that match many common hoses and pipes used in workshops. This universal fit means you can screw your existing lines directly into the pump for an immediate, tight, reliable seal. Because the connection is so secure, you won't have to worry about air leaks or pressure drops that can slow down your work.


This diaphragm pump is just as easy to set up, thanks to the 1/2-inch air inlet port that connects smoothly to standard air compressors. This size is perfect for maintaining a consistent airflow, keeping the internal diaphragms moving at a steady pace. By using these standard dimensions, this air operated double diaphragm pump integrates into your current setup without any complicated modifications.


Easy Maintenance with Ball Valves, Detachable Silencers for Quiet Operation

If you want to keep your gear running like new without wasting hours on repairs, you will love how simple this pump is to fix. Our air-operated pump features easy-to-reach ball valves that you can open quickly for cleaning. You can clear out dirt quickly to help reduce the risk of clogs. This easy access keeps the pump in great condition, helping it last longer and saving you money on parts.


It weighs about 27.34 lbs. It also comes with removable silencers to keep your workspace quiet. These parts absorb the loud noise from the air exhaust, making the area much more comfortable to work in. This quieter machine helps you stay focused and makes it easier to talk to others while you work.


Compact Air Operated Double Diaphragm Pump for Versatile Applications

The VEVOR air operated double diaphragm pump measures 19.69 inches long, 15.3 inches high, and 9.45 inches wide. This compact design allows you to slide it into tight corners or mount it in crowded areas where larger machines may not fit. It's perfect for small shops or even home projects, like collecting rainwater.


Our air-operated pump is versatile and works well for a wide range of compatible tasks. It is strong enough to handle oil and wastewater but safe enough for food, juice, and medicine. It can move everything from thick syrups to industrial chemicals without wearing out. Whether you are working in a large factory or just doing chores at home, this small unit is a reliable helper.


Product guides and documents
User manual-en (PDF) Review

Questions and Answers (1)

What are the torque specs for the bolts on this unit ?
Fluid Caps / Chamber Bolts: 10–12 ft-lbs, Manifold Bolts: 8–10 ft-lbs, Diaphragm Shaft Nut: 20–25 ft-lbs, Air Valve Bolts: 3.5–4.5 ft-lbs.
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Accident and warranty protection by Xcotton (partner with AIG)
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