Air Operated Double Diaphragm Pump QBK-15 1/2in Inlet by FAHKNS 10 GPM

Description

Product Overview

The FAHKNS QBK-15 is an air‑operated double diaphragm pump engineered for demanding industrial environments where reliable fluid handling is critical. Constructed from a combination of high‑grade stainless steel, polypropylene, and nitrile rubber diaphragms, the pump offers exceptional resistance to corrosion, chemical attack, and mechanical wear. The double‑diaphragm design creates a positive displacement action that ensures consistent flow rates up to 10 GPM while maintaining a maximum operating pressure of 100 PSI. With a 1/2‑inch inlet and outlet, the unit can be easily integrated into existing piping systems, and the 1/4‑inch air inlet provides efficient pneumatic power consumption. The pump’s compact dimensions—6 × 4 × 10.6 inches—and lightweight build of 7.94 lb make it suitable for both stationary installations and portable applications. Additional features include a bolted construction that eliminates leaks, a gas nozzle sized at 0.32 inch for precise air control, and a suction capability of 16.4 ft, allowing it to handle viscous fluids such as waste oil, solvents, and other industrial liquids.

Usage

This pump is designed for a broad range of sectors, including petroleum processing, metallurgy, mining, coating operations, printing, paper manufacturing, water treatment, automotive service, and general chemical handling. In petroleum and automotive workshops, the QBK-15 efficiently transfers waste oil from engines, gearboxes, and hydraulic systems to collection containers, reducing downtime and environmental risk. In metalworking and mining facilities, the pump can move lubricants, coolants, and slurry mixtures, providing a reliable solution for fluid recirculation and waste management. Its chemical‑resistant materials make it suitable for handling acids, bases, and solvents commonly found in coating and cleaning processes. The pump’s ability to operate at low air pressures while delivering high flow rates also makes it an excellent choice for portable field service teams who require a rugged, easy‑to‑maintain device that can be powered by standard pneumatic tools. Whether installed in a fixed plant line or used as a handheld transfer unit, the QBK-15 adapts to the specific demands of each application, delivering consistent performance and minimizing the risk of contamination.

Why Choose Us

Choosing the FAHKNS QBK-15 means selecting a pump that combines engineering precision with practical durability. Each unit undergoes rigorous quality control testing to verify leak‑free operation, pressure tolerance, and flow consistency before it leaves the factory. The use of stainless steel for the pump housing ensures long‑term structural integrity, while the polypropylene and nitrile rubber diaphragms provide flexibility and chemical compatibility that extend service life even under harsh conditions. FAHKNS offers comprehensive technical support, including installation guidance, troubleshooting assistance, and a responsive parts supply network, ensuring that customers experience minimal downtime. Additionally, the pump’s design emphasizes ease of maintenance; diaphragms can be accessed and replaced without disassembling the entire unit, reducing labor costs and simplifying routine inspections. Our commitment to safety is reflected in the pump’s bolted construction, which eliminates the need for seals that can degrade over time, thereby preventing fluid leaks and protecting both personnel and the environment. By investing in the QBK-15, users gain a dependable tool backed by a manufacturer that prioritizes performance, reliability, and customer satisfaction.

Key Features

• Robust stainless steel housing resists corrosion and extends pump lifespan.
• Dual‑diaphragm design delivers smooth, consistent flow with minimal pulsation.
• Polypropylene and nitrile rubber diaphragms handle aggressive chemicals safely.
• Compact size and lightweight construction simplify installation and portability.
• FAHKNS technical support and easy‑replace diaphragm system ensure quick service and low downtime.

FAQ

What types of fluids can the QBK-15 pump handle?

The QBK-15 is suitable for a wide range of liquids, including waste oil, hydraulic fluids, solvents, acids, bases, and slurry mixtures. Its chemically resistant diaphragms and stainless steel housing allow it to operate safely with both non‑hazardous and hazardous fluids, provided the fluid temperature remains within the pump’s specified operating range.

How do I install the pump in an existing system?

Installation begins by securing the pump to a stable surface using the provided mounting brackets. Connect the 1/2‑inch inlet and outlet to the appropriate piping, ensuring all connections are tightened to prevent leaks. Attach the 1/4‑inch air inlet to a regulated pneumatic source set between 80‑100 PSI. After verifying that the air supply is stable, prime the pump by briefly opening the inlet valve, then start the air flow. The pump will begin to draw fluid through the suction line and deliver it through the discharge line. Detailed installation diagrams are included in the user manual, and FAHKNS technical support is available for any site‑specific questions.

What maintenance is required to keep the pump operating optimally?

Regular maintenance includes inspecting the diaphragms for wear, checking all fittings for tightness, and cleaning the inlet and outlet ports to remove any debris that could impede flow. The diaphragms are designed for easy removal; simply loosen the bolted housing, replace the worn diaphragm with a new one, and re‑assemble. It is recommended to perform a full inspection at least once every 1,000 operating hours or after exposure to particularly abrasive or corrosive fluids. Lubricating the moving parts with a compatible pneumatic oil can also help maintain smooth operation.

Can the pump be used in explosive or flammable environments?

Yes, the QBK-15’s air‑operated design eliminates the need for electrical components, making it intrinsically safe for use in hazardous locations when paired with appropriate explosion‑proof pneumatic equipment. However, users must still follow all local safety regulations, ensure proper grounding of the pneumatic supply, and verify that the fluid being transferred does not generate vapors that exceed the pump’s material compatibility limits.

What warranty does FAHKNS provide for this pump?

FAHKNS offers a one‑year limited warranty covering defects in materials and workmanship under normal use conditions. The warranty includes free replacement of faulty components and access to technical support for troubleshooting. Customers can also purchase extended service contracts for additional coverage beyond the standard warranty period.