PFA-Lined Valves for Chemical Processing Applications

Corrosion-Resistant Flow Control for Acids, Alkalis, Solvents, and Aggressive Media

Chemical processing plants handle some of the most aggressive substances found in industry—concentrated acids, caustic solutions, chlorinated solvents, and oxidizing agents that destroy conventional valve materials within months or even weeks. Equipment failures in these environments don't just mean downtime; they create safety hazards, environmental incidents, and costly remediation.

GFT9 manufactures PFA-lined ball valves, check valves, sight glasses, and strainers engineered for continuous service in corrosive chemical environments. Our products feature heavy-duty ductile iron or stainless steel bodies with thick, injection-molded PFA linings that provide complete isolation between aggressive media and metal components.

With over three decades of fluoropolymer valve manufacturing experience in Germany, we serve chemical plants, petrochemical facilities, water treatment operations, and industrial manufacturers worldwide—delivering the chemical resistance and reliability that critical processes demand.

View Full Product Range

Why Chemical Processing Demands PFA-Lined Components

The chemical processing industry encompasses an extraordinary range of corrosive substances—mineral acids, organic acids, caustic solutions, halogenated compounds, oxidizers, and specialized solvents. Each presents unique challenges that conventional valve materials cannot address.

The Corrosion Challenge:

Mineral acids (hydrochloric, sulfuric, nitric, phosphoric, hydrofluoric) attack stainless steel, bronze, and most polymers. Caustic solutions (sodium hydroxide, potassium hydroxide) degrade many plastics and corrode aluminum. Chlorinated solvents dissolve elastomers and attack standard polymers. Oxidizing agents damage metals and degrade organic materials.

No single material handles this full spectrum—except fluoropolymers.

Why PFA is the Industry Standard:

PFA (Perfluoroalkoxy Alkane) provides exceptional chemical resistance across virtually all process chemicals:

• Complete resistance to mineral acids at all concentrations—including hydrofluoric acid, which attacks glass and most metals
• Unaffected by caustic solutions up to 100°C and beyond
• Resistant to chlorinated solvents, aromatic hydrocarbons, and ketones
• Handles oxidizing agents including chlorine, bromine, and hydrogen peroxide
• Temperature capability from -40°C to +200°C (depending on mechanical load)
• No permeation or absorption—maintains purity of process streams
• FDA and USP Class VI compliant for pharmaceutical and food-grade applications

GFT9 Engineering Advantages:

• Thick-wall PFA linings (2.5-4mm) for extended service life
• Injection-molded construction eliminates weak points and seams
• Multiple body materials: carbon steel, stainless steel (1.4408)
• Full range of actuation options: manual, pneumatic, electric
• Manufactured in Germany to DIN EN standards

Applications Across Pharmaceutical Production

Chemical processing encompasses numerous sectors, each with distinct process requirements but common needs for corrosion resistance and reliability. GFT9 products serve critical functions throughout these operations.

Inorganic Chemical Production

Manufacturing of acids (sulfuric, hydrochloric, nitric, phosphoric), alkalis (caustic soda, potash), industrial gases, and inorganic salts requires equipment that withstands both the primary product and process intermediates. PFA-lined valves handle concentrated acid feed, dilution systems, neutralization circuits, and product transfer.

Organic Chemical Synthesis

Petrochemical derivatives, solvents, intermediates, and specialty organics often involve aggressive reagents and elevated temperatures. PFA-lined components resist organic acids, chlorinated hydrocarbons, aromatic compounds, and mixed solvent systems typical of organic synthesis operations.

Chlor-Alkali Processing

Chlorine and caustic soda production creates one of the most demanding valve environments—wet chlorine attacks virtually all metals, while hot caustic destroys most polymers. PFA provides reliable service in brine systems, chlorine handling, caustic concentration, and hydrogen circuits.

Surface Treatment and Metal Finishing

Pickling, plating, anodizing, and etching operations use concentrated acids and specialized chemical baths. PFA-lined valves and strainers control flow of sulfuric, hydrochloric, phosphoric, chromic, and hydrofluoric acids without contaminating treatment solutions.

Water and Wastewater Treatment

Chemical dosing systems for pH adjustment, disinfection, and coagulation handle concentrated acids, caustic, sodium hypochlorite, and specialty treatment chemicals. PFA-lined components provide consistent chemical resistance across the full range of treatment reagents.

Agrochemical Production

Fertilizer, pesticide, and herbicide manufacturing involves phosphoric acid, sulfuric acid, ammonia, and various organic intermediates. PFA-lined valves handle both bulk chemical streams and concentrated formulations.

PFA-Lined Products for Chemical Processing

  • PFA Lined Control Valve NPS 1½ NPS 1½ - Valve with pneumatic multi-spring actuator for fast, cost-efficient operation. - High quality industrial valve by GFT9

    PFA-Lined Ball Valves – Spheron Series

    Full-bore ball valves with complete PFA lining for reliable shut-off and flow control in aggressive chemical service. The Spheron series features heavy-duty ductile iron or steel bodies with thick injection-molded PFA linings, floating ball design, and multiple stem seal configurations.

    Standard Series (Cast Iron Body):
    • Sizes: DN15 to DN200
    • Pressure Rating: PN10/16
    • Temperature Range: -20°C to +180°C
    • Body: Ductile Iron GGG40.3 with epoxy exterior coating
    • Operation: Manual lever, gear operator, pneumatic or electric actuator

    Stainless Steel Series (Clean Room):
    • Sizes: DN15 to DN100
    • Pressure Rating: PN16 / ANSI 150
    • Temperature Range: -20°C to +180°C
    • Body: Stainless Steel 1.4408
    • Operation: Manual, pneumatic, electric

    PFA Lined Ball Valve RangeView Control Valve Range 
  • PFA Lined Ball Check Valve NPS 8 NPS 8 - On vertical mounting up to 60°, the center-guided ball closes the valve automatically. - High quality industrial valve by GFT9

    PFA-Lined Swing Check Valves – Membron Series

    Fully lined check valves prevent backflow and protect upstream equipment from reverse flow damage. The PFA-lined disc and seat provide reliable sealing even in the most corrosive services.

    • Sizes: DN25 to DN200
    • Pressure Rating: PN10/16
    • Temperature Range: -20°C to +180°C
    • Body: Ductile Iron GGG40.3
    • Design: Wafer style for compact installation

    Applications include pump discharge protection, gravity flow systems, and isolation of process equipment from corrosive backpressure.

    PFA Lined Check Valve Range 
  • PFA Lined Sight Glass NPS_10 NPS_10 - Sight glass mounts vertically or horizontally for easy installation in any environment. - High quality industrial valve by GFT9

    PFA-Lined Strainers – Filtron Series

    PFA-Lined Strainers – Filtraron Series

    ## Text-PFA-Lined-Products-P3 (Rich Text)
    Y-pattern strainers with full PFA lining protect downstream equipment from particulates while maintaining complete corrosion resistance. Removable screen baskets simplify maintenance without system contamination.

    • Sizes: DN25 to DN150
    • Pressure Rating: PN16
    • Temperature Range: -20°C to +180°C
    • Body: Ductile Iron GGG40.3
    • Screen Materials: PTFE mesh

    Essential for protecting pumps, control valves, and instruments in chemical service.

    PFA Lined Strainer Range 
  • PFA Lined Strainer NPS 6 (on request) NPS 6 (on request) - Main view - High quality industrial valve by GFT9

    PFA-Lined Sight Glasses – Videron Series

    Visual monitoring of process flow, color, and clarity without exposing glass to corrosive media. The PFA-lined wetted surfaces protect both the glass and the process from contamination.

    • Sizes: DN25 to DN150
    • Pressure Rating: PN10/16
    • Window Material: Borosilicate glass
    • Body: Ductile Iron GGG40.3 or Stainless Steel 1.4408

    Applications include flow verification, level indication, and color monitoring in chemical processes.

    PFA Lined Sight Glass Range 
1 4

Technical Specifications for Hydrogen Applications

Technical Specifications

Size Range (DN) DN 15 – DN 200
Size Range (NPS) ½" – 8"
Pressure Rating (DIN) PN 16
Pressure Rating (ANSI) Class 150
Temperature Range -20°C to +180°C (-4°F to +356°F)
Extended range to -60 and +200°C on request
Body Material (Standard) 1.0619 , 1.4308, 1.4408/ A216WCB, CF8-M or CF-8
Body Material (Clean Room) -
Lining Material Virgin PFA (Perfluoroalkoxy)
Lining Thickness 2.5 – 4.0 mm depending on size
Face-to-Face Standard EN 558-1
Flange Standard (DIN) EN 1092-1
Flange Standard (ANSI) ASME B16.5
Certifications PED 2014/68/EU Module A2, ISO 9001:2015, EN 12266-1, TU-LUFT, SIL
Custom Engineering Available:
Special sizes, extended temperature ratings, and custom actuation available on request.

Chemical Compatibility

Chemical Compatibility

Chemical Formula Concentration Max Temp Rating

Hydrochloric Acid

 HCl All concentrations to 37% 120°C

Sulfuric Acid

H₂SO₄ All concentrations to 98% 120°C

Nitric Acid

 HNO₃ All concentrations to 70% 80°C

Sodium Hydroxide (Caustic Soda)

 NaOH All concentrations to 50% 120°C

Phosphoric Acid

 H₃PO₄ All concentrations to 85% 120°C

Sodium Hypochlorite (Bleach)

 NaOCl All concentrations to 15% 60°C

PFA provides complete resistance to virtually all industrial chemicals including mineral acids, alkalis, oxidizers, and halogens. Temperature limits shown are conservative for continuous service. Contact us for specific concentration and temperature combinations.

Excellent Full resistance, suitable for continuous use Good Suitable for most applications Limited Verify for specific conditions

Quality Assurance and Documentation

Chemical processing facilities require rigorous documentation to support safety programs, regulatory compliance, and operational reliability. GFT9 provides comprehensive quality assurance for every product.

Manufacturing Standards:

• Production to DIN EN standards
• Pressure testing per EN 12266-1
• Material traceability from raw material to finished product
• ISO quality management systems

Documentation Packages:

• EN 10204 Type 3.1 material certificates
• PFA material certificates with batch identification
• Pressure test certificates
• Dimensional inspection reports
• Declarations of conformity (CE marking)

Material Specifications:

Body materials: DIN 1.0619 (carbon steel), GGG40.3 (ductile iron), 1.4408 (stainless steel)
Lining: Virgin PFA, 2.5-4mm wall thickness
Temperature range: -40°C to +200°C (depending on configuration)
Flange standards: DIN EN, ANSI, JIS available

Contact our technical team for application-specific documentation requirements.

Read the Full Project Story →

German Engineering for Critical Applications

  • Manufacturing Excellence:

    All GFT9 products are manufactured in Germany under strict quality control. Our facility in Kempen combines traditional valve manufacturing expertise with modern PFA lining technology, ensuring consistent quality across every component.

  • Documentation and Traceability:

    Hydrogen projects demand comprehensive documentation for safety compliance and operational records. GFT9 provides complete documentation packages including material certificates (EN 10204 3.1), test reports, declarations of conformity, and—for control valve projects—digital valve passports with QR code access to lifetime records.

  • Technical Support:

    Our engineering team understands the specific requirements of hydrogen applications. From initial specification review through commissioning support, we work alongside project teams to ensure our products meet exact application needs.

  • Flexible Delivery

    With standard products available from stock and custom solutions delivered within project timelines, GFT9 supports both urgent replacements and planned capital projects.
About GFT9

Discuss Your Chemical Processing Requirements

Whether you're specifying equipment for a new chemical facility, upgrading existing corrosion-prone systems, or sourcing replacement valves for maintenance, our technical team is ready to support your project.

We can provide:
• Chemical compatibility verification for your specific media
• Product selection based on your process conditions
• Custom configurations for special applications
• Technical support for specification development

Contact Options:

Email: sales@gft9.shop
Phone: +49 2152 9154990

Request a quotation through our online configurator, or contact us directly for complex applications.

Request Quotation →

Collections

1 3