YAMADA NDP-20BAV 1/4 Inch PTFE Diaphragm Pump

The YAMADA NDP-20BAV is a compact 1/4 inch air operated double diaphragm pump designed for reliable transfer of chemical, pharmaceutical and industrial fluids.

Featuring a polypropylene pump body with PTFE wetted components, this pump provides excellent chemical compatibility for applications requiring corrosion resistance and stable fluid handling.

The pneumatic diaphragm design operates without electrical power and eliminates mechanical seals, reducing leakage risks while providing flexible installation options.

Compared with standard diaphragm pumps using general elastomer materials, the PTFE configuration offers improved resistance when handling aggressive chemicals and high-purity fluids.

Key Features

• YAMADA NDP Series diaphragm pump
• Compact 1/4 inch design
• PTFE diaphragm and ball configuration
• Polypropylene pump body
• Air operated double diaphragm structure
• Self-priming capability
• Dry-run operation capability
• Chemical resistant construction

Typical Applications

• Chemical transfer systems
• Pharmaceutical equipment
• Laboratory fluid handling
• Semiconductor cleaning systems
• Water treatment equipment
• Industrial process systems

PTFE Material Advantage

Compared with standard diaphragm materials:

• Higher chemical resistance
• Suitable for aggressive fluids
• Improved contamination control
• Longer service performance in chemical applications

Compact NDP Series Design

The NDP-20BAV provides:

• Space-saving installation
• Stable low-flow transfer
• Easy maintenance
• Flexible equipment integration

Air Operated Pump Advantages

Compared with electric pumps:

• No electrical motor required
• Suitable for hazardous environments
• Self-priming operation
• Can run dry without motor damage

Model Difference

YAMADA NDP-20BAV

1/4 inch compact pump

PTFE chemical-resistant configuration

Small flow precision transfer

YAMADA NDP-25 Series

Larger connection size

Higher flow capability

Graco Husky Compact Series

Similar air diaphragm technology

Different material and configuration options

Installation Notes

• Confirm chemical compatibility
• Check air pressure supply
• Verify diaphragm material
• Ensure correct piping connection
• Use clean compressed air

FAQ

Q1: What type of pump is NDP-20BAV?

A1: It is a YAMADA air operated double diaphragm pump.

Q2: What is the port size?

A2: The pump uses a 1/4 inch connection.

Q3: What makes NDP-20BAV suitable for chemicals?

A3: PTFE diaphragm and ball materials provide improved chemical resistance.

Q4: Does it require electrical power?

A4: No. It operates using compressed air.

Q5: Can it handle pharmaceutical applications?

A5: Yes, when the wetted materials are compatible with the transferred fluid.