The D32911 diaphragm pump is a compact air-operated double diaphragm pump designed for precise and reliable fluid transfer in industrial applications. It belongs to the 3/8 inch (9.52 mm) pneumatic diaphragm pump category and is widely used in chemical processing, automotive, food-grade handling, and general manufacturing systems.

This pump is built with a polypropylene center section and wetted components combined with PTFE balls and PTFE diaphragm materials, ensuring strong chemical resistance and long service life. The PTFE construction makes it suitable for aggressive fluids, solvents, and low to medium viscosity media.

With a maximum flow rate of 24.6 L/min (6.5 GPM) and a maximum working pressure of 7 bar (100 PSI), the pump delivers stable, low-pulsation fluid transfer performance. It can operate at low air pressure starting from approximately 1.4 bar (20 PSI), making it energy-efficient and easy to integrate into pneumatic systems.

The compact design allows flexible installation in confined industrial spaces, while the air-operated mechanism eliminates the need for electrical motors, improving safety in explosive or hazardous environments.

Key Features

• Air-operated double diaphragm pump (AODD type)
• Flow rate up to 24.6 L/min (6.5 GPM)
• Maximum pressure 7 bar (100 PSI)
• 3/8 inch (9.52 mm) port connection
• PTFE diaphragm and PTFE ball construction
• Polypropylene fluid section for chemical resistance
• Low pulsation and stable flow output
• Operates from 1.4 bar low air pressure start

Applications

• Automotive fluid transfer systems
• Chemical dosing and transfer
• Food and beverage processing systems
• Ink, coating, and paint circulation
• Industrial wastewater treatment
• General manufacturing fluid handling

4. FAQ

Q1: What is the D32911 diaphragm pump used for?
A: It is used for transferring chemicals, fluids, and industrial liquids in controlled flow systems.

Q2: What is the maximum flow rate?
A: The pump delivers up to 24.6 L/min (6.5 GPM).

Q3: What is the maximum pressure?
A: It operates up to 7 bar (100 PSI).

Q4: What materials are used in construction?
A: Polypropylene body with PTFE balls and PTFE diaphragm.

Q5: Can it handle corrosive fluids?
A: Yes, PTFE wetted parts provide strong chemical resistance.