Fluoroplastic Lined Diaphragm Pump

Unlike conventional stainless steel pumps that may suffer from corrosion when handling strong acids or oxidizing chemicals, this diaphragm pump uses F46/PFA fluoroplastic lining as the contact layer to protect internal surfaces from chemical attack. The outer cast iron or cast steel housing provides pressure resistance and structural stability, making it suitable for harsh chemical processing environments.

Designed for industries requiring reliable corrosion protection, Xiafeng Fluoroplastic Lined Diaphragm Pump is widely used for transferring hydrochloric acid, sulfuric acid, hydrofluoric acid, nitric acid, organic solvents, and other highly corrosive media.

Corrosion-Resistant Structure Design

Metal Strength + Fluoroplastic Protection

The pump adopts a metal outer casing combined with a fluoroplastic-lined inner flow channel.

This structure provides:

• High mechanical strength from cast iron or cast steel housing
• Superior chemical resistance from F46/PFA lining
• Long service life under aggressive operating conditions

It effectively solves the common problems of:

• Rapid corrosion of stainless steel pumps
• Insufficient pressure resistance of full plastic pumps

Advanced Fluoroplastic Lining Technology

The internal flow passages are fully lined with fluoroplastic materials, creating a smooth and corrosion-resistant surface.

Advantages include:

The fluoroplastic layer is firmly bonded with the metal shell to maintain structural stability under continuous industrial use.

Full Corrosion-Resistant Wetted Components

To ensure complete chemical compatibility, key wetted components are manufactured with corrosion-resistant materials.

Available components include:

• Pump Lining: F46 / PFA Fluoroplastic
• Diaphragm: PTFE
• Ball Valve: PTFE / PFA
• Valve Seat: PTFE / PFA

This full corrosion-resistant design allows safe transfer of highly aggressive chemical media.

Technical Specifications

Applications

Chemical Processing Industry

Designed for transferring highly corrosive chemicals, including acids, alkalis, and chemical solutions.

Fine Chemical Manufacturing

Suitable for precise handling of aggressive chemical materials where corrosion resistance is essential.

Pharmaceutical & Agricultural Chemical Industry

Used for chemical liquid transfer requiring stable performance and contamination protection.

Electroplating Industry

Handles corrosive plating solutions and chemical treatment liquids.

New Energy & Battery Industry

Suitable for corrosive electrolyte-related processes and chemical transfer applications.

Working Conditions

Xiafeng Fluoroplastic Lined Diaphragm Pump is suitable for:

• Strong acidic liquids
• Strong alkaline solutions
• Oxidizing agents
• Organic solvents
• High-corrosion chemical fluids

Typical media include:

• Hydrochloric acid
• Sulfuric acid
• Hydrofluoric acid
• Nitric acid
• Aqua regia

FAQ

Q: What is a Fluoroplastic Lined Diaphragm Pump?

A: A Fluoroplastic Lined Diaphragm Pump is a corrosion-resistant diaphragm pump that uses F46 or PFA fluoroplastic lining inside a metal housing to safely transfer highly corrosive liquids.

Q: Why choose fluoroplastic lining instead of stainless steel?

A: Fluoroplastic materials provide stronger resistance against aggressive chemicals such as strong acids, oxidizers, and organic solvents where stainless steel may not provide sufficient protection.

Q: What chemicals can this pump handle?

A: The pump can handle various corrosive media including hydrochloric acid, sulfuric acid, hydrofluoric acid, nitric acid, strong oxidizers, and organic solvents.

Q: Can Xiafeng customize the pump according to chemical applications?

A: Yes. Xiafeng can customize materials, drive methods, and configurations according to fluid characteristics, temperature, pressure, and industrial requirements.