Features and Details
Top-quality double PTFE membranes: The pneumatic double-diaphragm pump is equipped with PTFE diaphragms that are durable, corrosion-resistant, and designed for long-term use. Max. temperature: 66 °C; Max. pressure: 7 bar; Max. flow rate: 301 L/min; Max. lift: 70 m.
Durable and airtight construction: The pump housing is made of polypropylene with screw connections designed to prevent leaks. The design is durable and corrosion-resistant, ensuring long-term use.
High pneumatic performance: Inlet/outlet connection: DN25 PN10 flanged connection; air inlet: 1/2-inch FNPT. A high-quality sealing ring and double-acting seal improve air efficiency.
Professional design: Equipped with an external air distribution system and a stainless steel modular air valve. Low pulsation ensures smooth and rapid switching, increasing efficiency and reducing downtime.
Wide range of applications: Suitable for pumping various liquids, including waste oil, alcohol, hydraulic fluid, gasoline, diesel fuel, detergents, and beverages. Widely used in the petroleum, metallurgy, mining, coatings, printing, water treatment, and automotive industries.
Pneumatic double-diaphragm pump
Polypropylene construction and PTFE membranes
This self-priming diaphragm pump is constructed from a threaded polypropylene housing with double PTFE diaphragms, ensuring durability, corrosion resistance, and leak-free operation. Sealed ball valves and continuous, non-stop operation guarantee high performance. Suitable for pumping viscous and highly flammable liquids.
Top-quality double PTFE membranes
Durable and airtight construction
Efficient pneumatic operation
Professional Design
Durable polypropylene housing
The housing is made of polypropylene with screw connections, ensuring a stable, corrosion-resistant, and durable construction. Max. temperature: 66 °C; Max. pressure: 7 bar.
PTFE double membrane
The double PTFE membranes ensure high resistance to corrosion and aging. Max. flow rate: 300 L/min; Max. lift height: 70 m.
Professional Pneumatic Design
Designed in accordance with international standards for reliable operation. Inlet/outlet connection: DN25 PN10 flanged connection. Air inlet size: 12.7 mm (FNPT 1/2").
Closed ball valve
Easily accessible ball valves and fluid covers for maintenance. An efficient air valve that operates continuously without stopping ensures optimal performance.
Suitable for various liquids
It can pump waste oil, alcohol, hydraulic fluid, gasoline, diesel fuel, detergents, drinking water, and other liquids.
Wide range of applications
It can be used in the petroleum, metallurgical, mining, coatings, printing, water treatment, automotive, and other industries.
Specifications
Model: QBY4-25PP
Type: double-diaphragm
Housing material: polypropylene
Inlet connection: DN25 PN10 flange connection
Outlet connection: DN25 PN10 flange connection
Air inlet size: 12.7 mm
Max. flow rate: 300 L/min
Suction head: 0–5 m
Max. Particle size: 3 mm
Max. lift height: 70 m
Max. pressure: 7 bar
Self-priming (dry): 3 m
Self-priming (wet): 4.6 m
Package Contents
1 × QBY4-25PP Pneumatic Double-Diaphragm Pump
1 × User Manual
Specifications
Model: QBY4-25PP
Type: double-diaphragm
Housing material: polypropylene
Inlet connection: 25 mm
Outlet connection: 25 mm
Air inlet size: 12.7 mm
Maximum flow rate: 300 L/min
Suction height: 0–5 m
Maximum solid particle size: 3 mm
Maximum lift height: 70 m
Maximum pressure: 6.9 bar
Self-priming (dry): 3 m
Self-priming (wet): 4.6 m
