Pumps came exactly as listed, easy ordering and delivered on time.
SKU: YBGMBQBY4-50L0001V0
Top highlights
- Durable nitrile diaphragms with 158.4 GPM flow rate and 120 psi pressure.
- Robust aluminum alloy housing with leak-proof design.
- Efficient air-driven system with rustproof modular air valve.
AI Summarized from product information
Specifications
- Model QBY4-50L
- Type Air-operated double diaphragm
- Membrane material Nitrile
- Housing material Aluminum alloy
- Inlet/outlet connection 2 inches (50 mm)
- Air intake size NPT 1/2 inch (12.7 mm)
Reviews · 4.7
Reviews · 4.7
hl***
in
on Sep 28,2026
on Sep 28,2026
285L/min (75GPM) Nitrile Rubber
da***
in
on Sep 24,2026
on Sep 24,2026
Bought the pump for sealcoat application and it worked flawlessly. Very pleased customer.
About this item
Description
Air-operated double diaphragm pump, constructed of aluminum alloy, with a nitrile diaphragm and a flow rate of 158.4 GPM. Our self-priming diaphragm pump features a fully bolted aluminum alloy housing and double nitrile diaphragms, making it robust, corrosion-resistant, and leak-free. Sealed ball valves and a shut-off safety feature ensure excellent performance. It is ideal for transferring viscous and flammable liquids. Our top-of-the-line self-priming diaphragm pump ensures the smooth operation of your business.
Premium double nitrile membranes
Unique and professional designs
- Unique and professional designs
Robust housing made of aluminum alloy
The housing of the air-operated diaphragm pump is made of an aluminum alloy, fully bolted, solid, and corrosion-resistant. Max. temperature: 150°F/66°C; Max. pressure: 120 psi.
Nitrile double membrane
The self-priming pump features double nitrile diaphragms, offering high resistance to corrosion and aging. Max. flow rate: 158.4 GPM; Max. delivery head: 84 m.
Professional air-powered designs
Our diaphragm pump is built to meet international standards for reliable performance. Inlet/outlet port size: 2 inches; air inlet size: FNPT 1/2 inch.
Sealed ball valve
Ball check valves and fluid caps are easily accessible for maintenance and repairs. Furthermore, the motor design ensures optimal air efficiency. An unbalanced air valve prevents stalling during operation.
Treat different materials
This air-operated diaphragm pump can pump many viscous and flammable liquids, including waste oil, alcohol, hydraulic fluid, gasoline, diesel, cleaning agents, drinking water, etc.
Diverse applications
The double diaphragm pump is used in various industries such as petroleum, metallurgy, mining and coating, pressure, water treatment, automotive, etc.
- Model: QBY4-50L
- Type: Air-operated double diaphragm
- Membrane material: Nitrile
- Housing material: Aluminum alloy
- Inlet/outlet connection: 2 inches (50 mm)
- Air intake size: NPT 1/2 inch (12.7 mm)
- Maximum flow rate: 158.4 GPM
- Max. delivery head: 84 m (275.59 ft)
- Valve type: Ball
- Suction power: 0–5 m (0–16.4 ft)
- Max. suspended particles: 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)
- 1 x air-operated double diaphragm pump
- 1 x Product manual
Air-operated double diaphragm pump, constructed of aluminum alloy, with a nitrile diaphragm and a flow rate of 158.4 GPM. Our self-priming diaphragm pump features a fully bolted aluminum alloy housing and double nitrile diaphragms, making it robust, corrosion-resistant, and leak-free. Sealed ball valves and a shut-off safety feature ensure excellent performance. It is ideal for transferring viscous and flammable liquids. Our top-of-the-line self-priming diaphragm pump ensures the smooth operation of your business.
Premium double nitrile membranes
Unique and professional designs
- Unique and professional designs
Robust housing made of aluminum alloy
The housing of the air-operated diaphragm pump is made of an aluminum alloy, fully bolted, solid, and corrosion-resistant. Max. temperature: 150°F/66°C; Max. pressure: 120 psi.
Nitrile double membrane
The self-priming pump features double nitrile diaphragms, offering high resistance to corrosion and aging. Max. flow rate: 158.4 GPM; Max. delivery head: 84 m.
Professional air-powered designs
Our diaphragm pump is built to meet international standards for reliable performance. Inlet/outlet port size: 2 inches; air inlet size: FNPT 1/2 inch.
Sealed ball valve
Ball check valves and fluid caps are easily accessible for maintenance and repairs. Furthermore, the motor design ensures optimal air efficiency. An unbalanced air valve prevents stalling during operation.
Treat different materials
This air-operated diaphragm pump can pump many viscous and flammable liquids, including waste oil, alcohol, hydraulic fluid, gasoline, diesel, cleaning agents, drinking water, etc.
Diverse applications
The double diaphragm pump is used in various industries such as petroleum, metallurgy, mining and coating, pressure, water treatment, automotive, etc.
- 1 x air-operated double diaphragm pump
- 1 x Product manual
- Model: QBY4-50L
- Type: Air-operated double diaphragm
- Membrane material: Nitrile
- Housing material: Aluminum alloy
- Inlet/outlet connection: 2 inches (50 mm)
- Air intake size: NPT 1/2 inch (12.7 mm)
- Maximum flow rate: 158.4 GPM
- Max. delivery head: 84 m (275.59 ft)
- Valve type: Ball
- Suction power: 0–5 m (0–16.4 ft)
- Max. suspended particles: 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
Frequently Bought Together
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VEVOR air-operated double diaphragm pump, 2-inch inlet and outlet, aluminum alloy housing, 158.4 GPM and max. 120 PSI, nitrile diaphragm transfer pump for petroleum, diesel, oil and liquids
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