Air Operated Diaphragm Pump

Unlike traditional pumps with mechanical shaft seals, the diaphragm structure completely separates the fluid chamber from the drive mechanism, preventing leakage caused by seal wear. As an air-powered solution without electrical components, the pump offers inherent explosion-proof performance, dry running capability, self-priming operation, and excellent adaptability for demanding industrial environments.

No Electric Power Required & Explosion-Safe Operation

Driven by compressed air, the Air Operated Diaphragm Pump does not require electrical power during operation, making it suitable for hazardous environments where explosion protection is required.

Leak-Free Diaphragm Structure

The diaphragm isolates the pumped medium from internal moving components, reducing the risk of leakage and improving operational safety when handling corrosive or sensitive fluids.

Self-Priming and Dry Running Capability

The pump supports self-priming operation and can run dry without damage, providing greater flexibility for complex working conditions.

Adjustable Flow and Pressure Control

By adjusting air supply pressure from 1 to 7 bar, users can easily control flow rate and discharge pressure according to different process requirements.

Flexible Material Selection

Different pump body and diaphragm materials are available to match various liquids, temperatures, and chemical conditions.

Technical Specifications

Material Options

To adapt to different media characteristics, Xiafeng Air Operated Diaphragm Pump supports multiple material configurations:

Pump Body Options

• Aluminum Alloy — Suitable for general industrial applications requiring lightweight construction.
• Stainless Steel — Suitable for corrosion-resistant applications and demanding environments.
• Cast Iron — Suitable for heavy-duty industrial applications.
• PP / PVDF — Suitable for chemical and corrosive liquid transfer.

Diaphragm Options

• NBR (Nitrile Rubber)
• Neoprene Rubber
• FKM (Fluoro Rubber)
• PTFE (Teflon)

The material selection can be customized according to fluid properties, temperature requirements, viscosity, and chemical compatibility.

Applications

Xiafeng Air Operated Diaphragm Pump is widely used for fluid transfer applications requiring safe operation and reliable performance.

Chemical Industry

Suitable for transferring corrosive liquids, solvents, and chemical solutions.

Coating & Painting Systems

Used for paint, coating materials, and high-viscosity fluids in industrial coating processes.

Wastewater Treatment

Ideal for sludge, wastewater, and particle-containing liquids.

Mining Industry

Suitable for handling abrasive slurry and solid-containing fluids.

Food & Industrial Processing

Available with suitable material configurations for various processing applications.

Why Choose Xiafeng Air?

Precision Manufacturing Capability

With professional die casting and metal component manufacturing experience, Xiafeng supports stable production and customized component solutions.

Flexible Customization Options

Pump structures, materials, and components can be adjusted according to different application requirements.

Integrated Production Support

From mold development and precision processing to surface treatment and inspection, Xiafeng provides comprehensive manufacturing support.

Strict Quality Management

Professional testing procedures ensure product reliability and consistent performance for industrial applications.

Industry Application Experience

Xiafeng products serve customers in chemical, environmental protection, automotive, industrial equipment, and other fields.

Reliable Supply Capability

Stable production capacity and complete manufacturing processes support long-term cooperation with global buyers.

FAQ

What is an Air Operated Diaphragm Pump used for?

An Air Operated Diaphragm Pump is commonly used for transferring chemicals, wastewater, coatings, slurry, and other challenging fluids that require safe and reliable pumping.

Can an Air Operated Diaphragm Pump run without electricity?

Yes. The pump is powered by compressed air and does not require electrical power, making it suitable for hazardous and explosion-sensitive environments.

How do I choose the right diaphragm pump material?

The selection depends on the liquid characteristics, corrosion resistance requirements, temperature, viscosity, and operating conditions. Xiafeng can recommend suitable pump body and diaphragm materials according to specific applications.