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VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids
Top highlights
  • Durable nitrile diaphragms with max flow rate of 75 GPM and max pressure of 120 psi.
  • Sturdy aluminum alloy housing with leak-proof bolted construction.
  • Versatile pump for handling various fluids across multiple industries.
AI Summarized from product information
Specifications
  • Model QBY4-50L
  • Type Air-operated Double diaphragm
  • Diaphragm Material Nitrile
  • Body Material Aluminum Alloy
  • Inlet/Outlet Port 2 inch (50 mm)
  • Air Inlet Size NPT 1/2 inch (12.7 mm)

Reviews · 4.7

hl*** hl***
in US on Sep 28,2026
Pumps came exactly as listed, easy ordering and delivered on time.
da*** da***
in US on Sep 24,2026
Bought the pump for sealcoat application and it worked flawlessly. Very pleased customer.

About this item

Description
VEVOR double diaphragm pump with industrial plant in the background. max 75 gpm, 275.6 ft.
black VEVOR double diaphragm pump with metal housing and industrial design.
Air-Operated Double Diaphragm Pump Aluminum Alloy Construction & Nitrile Diaphragm & 75 GPM Flow Rate Our self-priming diaphragm pump features an all-bolted aluminum alloy body and double nitrile diaphragms, sturdy and corrosion-proof, without leakage. Sealed ball valves and non-stall operation provides outstanding performance. It is perfect for transferring viscous and flammable fluids. Our top of the line self-priming diaphragm pump will ensure your operations are flowing smoothly.
Premium Double Nitrile Diaphragms
Excellent Air-operated Performance
  • Unique & Professional Designs
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
VEVOR double diaphragm pump with sturdy aluminum alloy body and bolted construction.
Sturdy Aluminum Alloy Body
The shell of the air-operated diaphragm pump adopts aluminum alloy construction, all bolted, solid, and corrosion-proof. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 120 psi.
VEVOR double diaphragm pump in front of an industrial plant, durable and corrosion-proof.
Nitrile Double Diaphragm
The self-priming pump features double nitrile diaphragms, which have high resistance to corrosion and aging. Max. Flow Rate：75 GPM; Max Head Lift：275.6 ft/84 m.
VEVOR double diaphragm pump with labeled ports and air inlet details.
Professional Air-Operated Designs
Our diaphragm pump is built to meet the international standard for reliable performance. Inlet/Outlet Port Size: 2 inch; Air Inlet Size: FNPT 1/2 inch.
VEVOR double diaphragm pump with sealed ball valve, max head 275.6ft, 75 gpm flow rate.
Sealed Ball Valve
It is easily accessible to ball checks and fluid caps for maintenance and repairs. In addition, the motor design delivers optimum air efficiency. An “Unbalanced" air valve ensures no-stalling during operation.
VEVOR double diaphragm pump handles waste oil, alcohol, hydraulic fluid, ink, drinks, detergent, gasoline, diesel, water.
Handle Various Material
This air-operated diaphragm pump can transfer many viscous and flammable fluids, including waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergent, drinking water, and so on.
VEVOR double diaphragm pump for industrial, lab, and beverage applications.
Versatile Uses
The double diaphragm pump has applications in various industries like petroleum, metallurgy, mining, coating. printing, water treatment, automobile, etc.
black VEVOR double diaphragm pump with dimensions 26.4in x 17.7in.
  • Model: QBY4-50L
  • Type: Air-operated Double diaphragm
  • Diaphragm Material: Nitrile
  • Body Material: Aluminum Alloy
  • Inlet/Outlet Port: 2 inch (50 mm)
  • Air Inlet Size: NPT 1/2 inch (12.7 mm)
  • Max Flow Rate: 75 GPM
  • Max Head: 84 m (275.59 ft)
  • Valve Type: Ball
  • Suction: 0-5 m (0-16.4 ft)
  • Max Suspended Solids: 3 mm (1/8 inch)
  • Average Air Consumption: 38 CFM
  • Self-Priming Dry: 3 m (10 ft)
  • Self-Priming Wet: 4.6 m (15 ft)
VEVOR double diaphragm pump in black with metal components and dual chambers.
  • 1 x Air-Operated Double Diaphragm Pump
  • 1 x Product Manual
VEVOR double diaphragm pump with industrial plant in the background. max 75 gpm, 275.6 ft.
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
  • Premium Tough Quality
  • Incredibly Low Prices
  • Fast & Secure Delivery
  • 30-Day Free Returns
  • 24/7 Attentive Service
black VEVOR double diaphragm pump with metal housing and industrial design.
Air-Operated Double Diaphragm Pump Aluminum Alloy Construction & Nitrile Diaphragm & 75 GPM Flow Rate Our self-priming diaphragm pump features an all-bolted aluminum alloy body and double nitrile diaphragms, sturdy and corrosion-proof, without leakage. Sealed ball valves and non-stall operation provides outstanding performance. It is perfect for transferring viscous and flammable fluids. Our top of the line self-priming diaphragm pump will ensure your operations are flowing smoothly.
Premium Double Nitrile Diaphragms
Excellent Air-operated Performance
  • Unique & Professional Designs
VEVOR double diaphragm pump with sturdy aluminum alloy body and bolted construction.
Sturdy Aluminum Alloy Body
The shell of the air-operated diaphragm pump adopts aluminum alloy construction, all bolted, solid, and corrosion-proof. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 120 psi.
VEVOR double diaphragm pump in front of an industrial plant, durable and corrosion-proof.
Nitrile Double Diaphragm
The self-priming pump features double nitrile diaphragms, which have high resistance to corrosion and aging. Max. Flow Rate：75 GPM; Max Head Lift：275.6 ft/84 m.
VEVOR double diaphragm pump with labeled ports and air inlet details.
Professional Air-Operated Designs
Our diaphragm pump is built to meet the international standard for reliable performance. Inlet/Outlet Port Size: 2 inch; Air Inlet Size: FNPT 1/2 inch.
VEVOR double diaphragm pump with sealed ball valve, max head 275.6ft, 75 gpm flow rate.
Sealed Ball Valve
It is easily accessible to ball checks and fluid caps for maintenance and repairs. In addition, the motor design delivers optimum air efficiency. An “Unbalanced" air valve ensures no-stalling during operation.
VEVOR double diaphragm pump handles waste oil, alcohol, hydraulic fluid, ink, drinks, detergent, gasoline, diesel, water.
Handle Various Material
This air-operated diaphragm pump can transfer many viscous and flammable fluids, including waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergent, drinking water, and so on.
VEVOR double diaphragm pump for industrial, lab, and beverage applications.
Versatile Uses
The double diaphragm pump has applications in various industries like petroleum, metallurgy, mining, coating. printing, water treatment, automobile, etc.
VEVOR double diaphragm pump in black with metal components and dual chambers.
  • 1 x Air-Operated Double Diaphragm Pump
  • 1 x Product Manual
black VEVOR double diaphragm pump with dimensions 26.4in x 17.7in.
  • Model: QBY4-50L
  • Type: Air-operated Double diaphragm
  • Diaphragm Material: Nitrile
  • Body Material: Aluminum Alloy
  • Inlet/Outlet Port: 2 inch (50 mm)
  • Air Inlet Size: NPT 1/2 inch (12.7 mm)
  • Max Flow Rate: 75 GPM
  • Max Head: 84 m (275.59 ft)
  • Valve Type: Ball
  • Suction: 0-5 m (0-16.4 ft)
  • Max Suspended Solids: 3 mm (1/8 inch)
  • Average Air Consumption: 38 CFM
  • Self-Priming Dry: 3 m (10 ft)
  • Self-Priming Wet: 4.6 m (15 ft)
Product guides and documents
User manual-en (PDF) Review

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VEVOR Air-Operated Double Diaphragm Pump, 2 inch Inlet & Outlet, Aluminum Alloy Body, 285L/min (75GPM) & Max 120PSI, Nitrile Diaphragm Transfer Pump for Petroleum, Diesel, Oil and Low Viscosity Fluids

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