3 Inch Diaphragm Pump

Designed for demanding industrial environments, the 3 Inch Diaphragm Pump features a large flow passage that allows the transfer of liquids containing solid particles up to 10 mm. The air-operated structure provides self-priming performance, dry-running capability, and stable operation in harsh conditions. Available with aluminum alloy, cast iron, or stainless steel pump bodies and various diaphragm materials, it can be configured for different media and installation requirements, including mining, environmental protection, ceramic, and chemical industries.

Large Flow Capacity for Heavy-Duty Applications

The DN80 (3 inch) connection size provides a significantly larger transfer capacity compared with smaller diaphragm pump models.

With a maximum flow rate of approximately 24 m³/h (400 L/min), the pump is designed for applications where continuous high-volume material movement is required. The wide internal flow passage reduces the risk of blockage when handling liquids containing suspended solids, sludge, or abrasive particles.

For industries such as mining and environmental protection, this capability makes the 3 inch diaphragm pump a practical choice for transferring materials that require strong adaptability rather than only high speed.

Designed for High Solid Content Media

Many industrial processes involve fluids that contain particles, sediments, or viscous materials. Traditional pumps may face challenges such as clogging, reduced efficiency, or increased maintenance frequency.

The 3 Inch Diaphragm Pump uses a diaphragm-driven displacement structure that is well suited for these conditions. The pump can handle slurry, mud, wastewater with solids, and other complex media while maintaining stable transfer performance.

The maximum particle passing capability of approximately 10 mm makes it suitable for mining slurry, ceramic materials, sludge transfer, and industrial waste handling.

Pneumatic Drive for Reliable Industrial Operation

The pneumatic configuration is widely selected for 3 inch diaphragm pumps because of its adaptability in harsh industrial environments.

Powered by compressed air, the pump does not require direct electrical components at the pumping unit, making it suitable for wet environments, outdoor applications, and areas with explosion protection requirements.

The air-operated structure also allows the pump to run dry without severe damage, providing additional reliability in applications where operating conditions may change frequently.

Heavy-Duty Construction and Flexible Integration

The 3 inch diaphragm pump is designed for connection with larger industrial piping systems.

ANSI flange and DIN flange options allow direct integration into engineering pipelines, reducing installation complexity for industrial projects.

Material selection can be customized according to application conditions. Cast iron and aluminum alloy versions are commonly used for general industrial transfer, while stainless steel models are suitable for environments requiring higher corrosion resistance.

Different diaphragm materials, including NBR, neoprene, fluororubber, and PTFE, provide additional flexibility for various fluids.

Technical Specifications

Industrial Applications

Mining and Mineral Processing

In mining operations, the 3 inch diaphragm pump is commonly used for slurry transfer, underground drainage, and material movement where liquids contain abrasive particles. Its strong particle-handling ability makes it suitable for transferring mineral slurry and wastewater generated during mining processes.

Large-Scale Wastewater Treatment

Wastewater facilities often require pumps capable of handling sludge and solids-containing fluids. The DN80 diaphragm pump provides reliable performance for sludge transfer, wastewater movement, and environmental treatment systems.

Chemical and Industrial Production

With suitable material selection, the pump can be configured for chemical slurry transfer, production waste handling, and large-volume industrial fluid movement.

Ceramic and Construction Materials

The ability to handle high-viscosity and particle-containing materials makes it suitable for ceramic glaze, clay slurry, and similar production processes.

Marine and Engineering Applications

The pump is also used for ship bilge cleaning, oil sludge removal, and tunnel or construction drainage applications where flexible pumping is required.

FAQ

Q: What is a 3 Inch Diaphragm Pump?

A: A 3 Inch Diaphragm Pump refers to a diaphragm pump with DN80 (3 inch) inlet and outlet connections. It is designed for large-flow industrial fluid transfer applications.

Q: How much flow can a pump provide?

A: A typical DN80 diaphragm pump can achieve a maximum flow rate of approximately 24 m³/h (400 L/min), depending on pressure conditions and application requirements.

Q: Can a 3 inch diaphragm pump transfer slurry and sludge?

A: Yes. The large flow passage allows the pump to handle slurry, sludge, and liquids containing solid particles up to approximately 10 mm.

Q: Why is pneumatic drive commonly used for large diaphragm pumps?

A: Pneumatic drive provides reliable operation in demanding environments, including wet areas and explosion-risk applications. It also allows dry running and flexible flow adjustment.

Q: What connection types are available for DN80 diaphragm pumps?

A: Common connection options include ANSI flange and DIN flange, allowing direct connection with industrial pipeline systems.

Q: Can Xiafeng customize a pump?

A: Yes. Xiafeng can provide customized solutions including pump materials, diaphragm materials, connection standards, and configurations according to project requirements.