Description
Features and Details
Premium quality dual nitrile diaphragm: Our pneumatic dual diaphragm pump is equipped with nitrile diaphragms that are durable, corrosion-resistant and long-lasting. Max. temperature: 66 ℃; Max. pressure: 8.3 bar; Max. flow rate: 284 l/min; Max. head: 84 m.
Durable and hermetic construction: The diaphragm pump body is made from aluminium alloy, bolted connection against leaks, durable and corrosion-resistant for long-term use.
Efficient pneumatic operation: Inlet/outlet port: 2 inches; Air inlet: FNPT 1/2 inch. High-quality glyd seal ring and dual seal improve air supply performance.
Unique and professional design: The dual diaphragm pump features an external air distribution system. The modular air valve is made from stainless steel. Low-pulsation air valve ensures smooth and rapid switching, increasing efficiency and reducing downtime.
Wide range of applications: The pump is suitable for pumping various liquids, such as waste oil, alcohol, hydraulic fluid, petrol, diesel, detergents, beverages, etc. Widely used in oil, metallurgy, mining industries, coating application, printing, water purification and automotive manufacturing.
VEVOR dual diaphragm pump with industrial background, max. 284 l/min, 84 m.
Black VEVOR dual diaphragm pump with metal housing and industrial design.
Pneumatic dual diaphragm pump with aluminium alloy construction and nitrile diaphragm, flow rate 284 l/min. Our self-priming diaphragm pump is equipped with a fully bolted aluminium alloy body and dual nitrile diaphragms – durable, corrosion-resistant and leak-free. Sealed ball valves and non-stop operation ensure excellent performance. Suitable for pumping viscous and easily flammable liquids. Premium self-priming diaphragm pump ensures continuous and smooth operation.
Premium dual nitrile diaphragm
Efficient pneumatic operation
Unique and professional design
VEVOR is a leading brand in the equipment and tools sector. With thousands of motivated employees, VEVOR provides customers with durable equipment and tools at especially competitive prices. Currently, VEVOR operates in more than 200 countries with more than 10 million customers worldwide.
Why choose VEVOR?
High and durable quality
Especially competitive prices
Fast and safe delivery
30-day free returns
24/7 customer support
VEVOR dual diaphragm pump with sturdy aluminium alloy body and bolted construction.
Durable aluminium alloy body
The pneumatic diaphragm pump body is made from aluminium alloy, fully bolted, durable and corrosion-resistant. Max. temperature: 66 ℃; Max. pressure: 8.3 bar.
Dual nitrile diaphragmThe self-priming pump is equipped with dual nitrile diaphragms with high corrosion and ageing resistance. Max. flow rate: 284 l/min; Max. head: 84 m
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.
Professional pneumatic designThe diaphragm pump is designed in accordance with international standards for reliable operation. Inlet/outlet port: 2 inches (50 mm); Air inlet: NPT 1/2 inch (12.7 mm).
VEVOR dual diaphragm pump with sealed ball valves, max. head 84 m, flow rate 284 l/min.
Sealed ball valves
Provide convenient access to ball valves and liquid caps for maintenance and repair. Motor construction ensures optimal air efficiency. "Unbalanced" air valve prevents stoppage during operation.
VEVOR dual diaphragm pump suitable for waste oil, alcohol, hydraulic fluid, ink, beverages, detergents, petrol, diesel, water.
SpecificationModel: QBY4-50L
Type: Pneumatic dual diaphragm pump
Diaphragm material: Nitrile
Body material: Aluminium alloy
Inlet/outlet port: 2 inches (50 mm)
Air inlet: NPT 1/2 inch (12.7 mm)
Max. flow rate: 284 l/min
Max. head: 84 m
Valve type: Ball
Suction height: 0–5 m
Max. solid particle size: 3 mm
Average air consumption: 64.6 m³/h
Self-priming (dry): 3 m
Self-priming (wet): 4.6 m
VEVOR dual diaphragm pump in black with metal components and dual chambers.
Package Contents
1 x Pneumatic dual diaphragm pump
1 x User manual
Powerful liquid pumping — 2 inch diaphragm pump
This pneumatic dual diaphragm pump efficiently pumps various liquids. It is designed for long-term use, operates at high pressure and rapidly moves large volumes of liquid. Capable of lifting liquids up to 84 m high, suitable for pumping over long distances or heights. Efficient air system reduces vibration and ensures smooth operation. Suitable for oil, mining, water purification, automotive, laboratory and beverage manufacturing industries.
Excellent performance in every task
VEVOR 2 inch diaphragm pump delivers high performance and durability. Dual nitrile diaphragms are resistant to corrosion and chemicals. Max. pressure: 8.3 bar; Max. flow rate: 284 l/min; Max. head: 84 m.
Improved air system
Equipped with quality glyd seal ring and dual seal for smooth liquid flow. Stainless steel air valve reduces vibration and ensures continuous operation.
Versatile liquid pumping
Suitable for viscous, easily flammable and corrosive liquids, including waste oil, alcohol, petrol and other technical liquids.
Easy to use
Marked ports and easily accessible air inlet ensure rapid installation. Pneumatic operation requires no complex electrical wiring.
Sealed ball valves ensure continuous operation even in challenging conditions.
High-quality construction
Made from corrosion-resistant aluminium alloy. Operating temperature up to 66 ℃. Hermetic assembly prevents leaks and ensures long service life.
Easy maintenance
Design provides convenient access to main components. Nitrile diaphragms are durable and easy to replace.
Suitable for various applications
Widely used in industry, laboratories and beverage manufacturing, providing reliable and efficient liquid pumping.
Specification
Model: QBY4-50L
Type: Pneumatic dual diaphragm pump
Diaphragm material: Nitrile
Body material: Aluminium alloy
Inlet/outlet port: 2 inches (50 mm)
Air inlet size: NPT 1/2 inch (12.7 mm)
Max. flow rate: 284 l/min
Max. head: 84 m
Valve type: Ball
Suction height: 0–5 m
Max. solid particle size: 3 mm
Average air consumption: 64.6 m³/h
Self-priming (dry): 3 m
Self-priming (wet): 4.6 m
We deliver throughout Latvia within 3–7 business days; in some cases (items from a partner’s warehouse, holiday periods, high order volume), delivery may take up to 10 business days—in which case we will notify you. Omniva, DPD, and Latvijas Pasts pickup points – €2.99; free for orders of €100 or more. Door-to-door delivery by courier – €7.99; free for orders of €300 or more. Large and heavy items (e.g., stoves, compressors, furniture) are delivered only by courier. Select a pickup point or delivery address when placing your order. We’ll notify you via email at every step—confirmation, shipment, and tracking number.
Warranty All items come with a 2-year official manufacturer’s warranty (3 years for certain items), which applies equally to individuals and businesses. To file a warranty claim, email info@zemletes.lv with your order number and a brief description of the issue.
Returns: You may return an item within 14 days of receipt without submitting a return request—simply contact us and provide your order number. We will issue a refund within 1–7 days after receiving the returned item.
For businesses:
For each order, we issue a VAT invoice with your company’s details—please include your company name and VAT number when placing your order. The warranty for businesses is the same as for individuals—2 years. Payment by bank transfer upon receipt of an invoice is available.
Payment options:
—credit card, online banking, Apple Pay, Google Pay, bank transfer, as well as leasing through Klix and Montonio.
Questions? 📞 +371 29215657 · ✉️ info@zemletes.lv · 💬 WhatsApp
Payment Methods and Security
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