PFA Lined Diaphragm Valve – Corrosion Resistant Solution

The PFA Lined Diaphragm Valve is engineered for ultra-high purity and highly corrosive chemical fluid systems. By integrating a fully PFA-lined flow path, a PTFE diaphragm sealing structure, and a robust SCS13 stainless steel valve body, this valve delivers exceptional chemical resistance, absolute media purity, and reliable zero-leakage performance.

It is specifically designed for demanding industries such as semiconductor, photovoltaic, biopharmaceutical, and high-purity chemical distribution systems.

Extreme Corrosion Resistance & Ultra-High Purity

The valve chamber and flow path are completely lined with high-purity PFA (Perfluoroalkoxy), providing unmatched resistance to almost all strong acids, alkalis, organic solvents, and mixed chemical media. This construction eliminates metal ion contamination and corrosion risks.

Only PFA lining and PTFE diaphragm come into contact with the process fluid, ensuring the highest cleanliness standards required for ultra-pure water, electronic chemicals, and pharmaceutical-grade applications.

100% Media Isolation & Zero Leakage Design

The diaphragm structure forms a physical barrier between the process fluid and the valve’s mechanical components. When closed, the flexible PTFE diaphragm tightly seals against the PFA-lined weir, achieving true bubble-tight shutoff.

With no packing gland or dynamic shaft seal, potential leakage paths are eliminated at the source, providing inherent safety for personnel, equipment, and the environment.

Optimized Flow Path & Low Pressure Loss

The smooth, seamless PFA-lined flow channel offers excellent flow characteristics with minimal pressure drop. The streamlined internal geometry prevents particle retention, reduces turbulence, and supports efficient CIP/SIP cleaning processes, making the valve ideal for cleanroom and hygienic systems.

Long Service Life & Easy Maintenance

The diaphragm is the only dynamic and wear-related component, allowing for fast and simple replacement without removing the valve from the pipeline. This significantly reduces maintenance time, downtime, and overall lifecycle costs.

The rugged SCS13 stainless steel outer body provides superior mechanical strength and durability, ensuring long-term performance under JIS 10K pressure conditions.

Typical Applications

• Semiconductor and photovoltaic manufacturing (UPW, etchants, CMP slurry, photoresist, solvents)

• Biopharmaceutical and biotechnology processes (WFI systems, buffers, media preparation)

• Fine and specialty chemical production and distribution

• Laboratory systems and pilot plants

• Environmental protection and wet-process metallurgy

Product Highlights

• Full PFA lining for maximum corrosion resistance and purity

• PTFE diaphragm for bubble-tight, zero-leakage sealing

• Complete isolation between fluid and metal components

• Low pressure loss with smooth, dead-zone-free flow path

• Compact structure with long service life and low maintenance

• Compatible with JIS 10K piping systems