PVDF Valves
PVDF valves are industrial flow control devices made from Polyvinylidene Fluoride (PVDF), a high-performance thermoplastic known for its excellent chemical resistance, high temperature stability, and mechanical strength. These PVDF valves are designed to control, regulate, or stop the flow of liquids and gases, especially in corrosive or high-purity environments. A PVDF valve is a corrosion-resistant plastic valve used in chemical, water treatment, pharmaceutical, and industrial piping systems where metal valves may fail due to chemical attack. PVDF is heated and handled before being used in extrusion and injection moulding to make PVDF pipes, sheets, coatings, films, and moulded PVDF goods including bulk containers.
PVDF valves are an excellent way to easily control the flow of water and other liquids. The Polyvinylidene Fluoride (PVDF), is a fluorocarbon chemical compound. It has high insolubility and exceptional toughness, making it an excellent coating material for protecting metal substrates against corrosion. PVDF valves are chemically resistant even to the most difficult-to-handle situations, such as hot, concentrated sulfuric acid. It is a thermoplastic with similar adaptability to other thermoplastics, notably fluoropolymers, for applications.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
PVDF Valves Details
PVDF Valves
| Parameter | Specification / Range |
| Material Body | PVDF (Polyvinylidene Fluoride) |
| Seal Material Options | PTFE / EPDM / FKM (Viton) |
| Valve Types Available | Ball, Diaphragm, Butterfly, Check |
| Size Range | ½” to 8” (DN15 – DN200) |
| Pressure Rating | PN10 / PN16 (Up to 16 bar)* |
| Working Temperature | -40°C to +140°C |
| Melting Point of PVDF | 170–175°C |
| Connection Types | Threaded (BSP/NPT), Flanged, Socket Weld, Butt Weld |
| Flow Control | Manual / Pneumatic / Electric Actuated |
| Chemical Resistance | Excellent (Acids, Alkalis, Solvents) |
| UV Resistance | Excellent |
| Density of PVDF | ~1.75–1.80 g/cm³ |
| Tensile Strength | 35–55 MPa |
| Elongation at Break | 20–50% |
| Standards Compliance | ASTM / ISO / DIN |
| Applications | Chemical, Pharma, Water Treatment, Semiconductor |
1. Chemical Resistance
- PVDF is highly resistant to a wide range of chemicals, including strong acids, alkalis, and solvents.
- Suitable for handling aggressive fluids that would corrode metals like stainless steel or brass.
2. High Purity & Non-Contamination
- PVDF valves are ideal for industries like pharmaceuticals, food & beverage, and semiconductor manufacturing because they do not leach contaminants into the fluid.
- They have a smooth, non-porous surface that minimizes particle accumulation.
3. Temperature and Pressure Capability
- Typical operating temperature: -40°C to 150°C (-40°F to 302°F).
- Can handle moderate pressure applications (pressure ratings depend on valve design and size).
4. Corrosion Resistance
- PVDF is resistant to UV radiation, oxidation, and general environmental degradation.
- Suitable for outdoor applications and prolonged exposure to harsh chemical environments.
5. Lightweight and Easy Installation
- Lighter than metal valves, making them easier to handle, transport, and install.
- Usually compatible with standard flange or socket fittings (e.g., DIN, ANSI, or JIS standards).
6. Mechanical Properties
- Strong and durable, though not as mechanically robust as metal valves.
- Good wear and abrasion resistance for moderate-flow applications.
7. Valve Types Available
- PVDF valves are available in multiple types depending on the application:
- Ball valves – for on/off control
- Diaphragm valves – for precise flow regulation
- Check valves – for preventing backflow
- Globe and gate valves – for throttling or isolation
8. Low Maintenance
- Smooth internal surfaces prevent clogging and make cleaning easier.
- Resistant to scaling and deposits compared to metals in chemical applications.
9. Electrical Insulation
- PVDF is a good electrical insulator, reducing risks in some electrochemical or electronic processes.
1️.Small Size PVDF Valves (Ball / Check / Compact Diaphragm)
| DN (mm) | Inch Size | Approx. Pipe OD (mm) | Typical Body Wall Thickness (mm) | Pressure Rating |
| 15 | ½″ | 20 | 2.0 – 2.5 | PN16 |
| 20 | ¾″ | 25 | 2.3 – 2.8 | PN16 |
| 25 | 1″ | 32 | 2.9 – 3.5 | PN16 |
| 32 | 1¼″ | 40 | 3.0 – 3.7 | PN16 |
| 40 | 1½″ | 50 | 3.7 – 4.5 | PN16 |
| 50 | 2″ | 63 | 4.7 – 5.5 | PN16 |
2.Medium Size PVDF Valves (Ball / Diaphragm)
| DN (mm) | Inch Size | Approx. Pipe OD (mm) | Typical Body Thickness (mm) | Pressure Rating |
| 65 | 2½″ | 75 | 5.0 – 6.0 | PN10–PN16 |
| 80 | 3″ | 90 | 5.5 – 6.5 | PN10 |
| 100 | 4″ | 110 | 6.5 – 8.0 | PN10 |
| 125 | 5″ | 140 | 7.0 – 9.0 | PN10 |
| 150 | 6″ | 160 | 8.0 – 10.0 | PN10 |
3️.Large Size PVDF Butterfly Valves
| DN (mm) | Inch Size | Typical Disc Thickness (mm) | Body Thickness Range (mm) | Pressure Rating |
| 200 | 8″ | 10 – 15 | 10 – 14 | PN10 |
| 250 | 10″ | 12 – 18 | 12 – 16 | PN10 |
| 300 | 12″ | 15 – 22 | 14 – 20 | PN10 |
1️.Temperature Properties of PVDF Valves
| Parameter | Value / Range | Remarks |
| Continuous Working Temperature | -20°C to +140°C | Recommended safe operating range |
| Short-Term Maximum Temperature | Up to 150°C | Limited exposure only |
| Melting Point | 170°C – 175°C | Material melting temperature |
| Glass Transition Temperature | -35°C to -40°C | Below this, material becomes less flexible |
| Recommended Installation Temperature | 5°C – 40°C | For safe handling and fitting |
| Temperature Effect on Pressure | Pressure decreases as temperature increases | Follow derating chart |
2️. Density & Related Physical Properties
| Property | Typical Value | Unit |
| Density | 1.75 – 1.80 | g/cm³ |
| Specific Gravity | 1.75 – 1.80 | — |
| Water Absorption (24 hrs) | < 0.04 | % |
| Thermal Conductivity | 0.17 – 0.20 | W/m·K |
| Coefficient of Linear Expansion | 1.2 – 1.5 × 10⁻⁴ | mm/mm/°C |
1️. PVDF Ball & Check Valves – Pressure Rating
| DN (mm) | Inch Size | Typical Pressure Rating @ 20°C | Pressure Rating @ 60°C | Pressure Rating @ 100°C |
| 15 | ½″ | PN16 (16 bar) | 13 bar | 9–10 bar |
| 20 | ¾″ | PN16 (16 bar) | 13 bar | 9–10 bar |
| 25 | 1″ | PN16 (16 bar) | 13 bar | 9–10 bar |
| 32 | 1¼″ | PN16 (16 bar) | 12–13 bar | 8–9 bar |
| 40 | 1½″ | PN16 (16 bar) | 12 bar | 8 bar |
| 50 | 2″ | PN16 (16 bar) | 12 bar | 8 bar |
| 65 | 2½″ | PN10 (10 bar) | 8 bar | 6 bar |
| 80 | 3″ | PN10 (10 bar) | 8 bar | 6 bar |
| 100 | 4″ | PN10 (10 bar) | 7–8 bar | 5–6 bar |
| 150 | 6″ | PN10 (10 bar) | 7 bar | 5 bar |
2️. PVDF Diaphragm Valves – Pressure Rating
| DN (mm) | Inch Size | Pressure Rating @ 20°C | Pressure Rating @ 60°C | Pressure Rating @ 100°C |
| 15 – 50 | ½″ – 2″ | PN10 (10 bar) | 8 bar | 6 bar |
| 65 – 100 | 2½″ – 4″ | PN10 (10 bar) | 7–8 bar | 5–6 bar |
| 125 – 150 | 5″ – 6″ | PN10 (10 bar) | 7 bar | 5 bar |
3️. PVDF Butterfly Valves – Pressure Rating
| DN (mm) | Inch Size | Pressure Rating @ 20°C | Pressure Rating @ 60°C |
| 200 – 250 | 8″ – 10″ | PN10 (10 bar) | 7–8 bar |
| 300 – 315 | 12″ | PN10 (10 bar) | 7 bar |
Custom Product Manufacturing Available
If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.
More About PVDF Valves
| Property | Description / Typical Value |
| Material | PVDF (Polyvinylidene Fluoride) |
| Density | ~1.78 g/cm³ |
| Melting Point | 170–175 °C (338–347 °F) |
| Glass Transition Temp ($T_g$) | ~−40 °C to −35 °C (Becomes brittle below this) |
| Thermal Conductivity | 0.17–0.19 W/m·K |
| Coefficient of Thermal Expansion | 100–130 ×10⁻⁶ /°C |
| Tensile Strength | 35–50 MPa |
| Elongation at Break | 20–50% |
| Hardness (Shore D) | 70–75 |
| Impact Resistance | High (good toughness, resistant to cracking) |
| Chemical Resistance | Excellent to acids, bases, and most solvents |
| UV Resistance | Excellent (Inherently stable; one of the best for UV) |
| Color | Natural (off-white) or colored with additives |
| Operating Temperature Range | -40 °C to +140 °C (continuous use) |
1. Customization Options
a) Valve Type & Function
- Ball Valves: On/off control for chemical or water systems.
- Diaphragm Valves: Precise flow regulation, ideal for corrosive fluids.
- Check Valves: Prevent backflow in pipelines.
- Globe & Gate Valves: Throttling and isolation applications.
- Custom designs can combine features, like multi-port valves or three-way valves.
b) Size & Pressure Rating
- PVDF valves can be customized for pipe diameters from ½ inch to 12 inches or more.
- Pressure ratings can be increased using reinforced PVDF (glass-filled or carbon-filled).
c) End Connections
- Socket Fusion (Solvent Weld) – for small piping systems.
- Flanged (DIN, ANSI, JIS standards) – for larger, industrial pipelines.
- Threaded Ends (NPT, BSP) – for modular or low-pressure applications.
- Custom Connections – to fit existing equipment or non-standard piping.
d) Seal & Seat Materials
- Seals can be tailored to the chemical and temperature requirements:
- PTFE – general chemical resistance.
- FKM/Viton – high temperature resistance.
- FFKM – extreme chemical resistance for aggressive fluids.
- EPDM – acids, bases, and water systems.
e) Special Coatings & Additives
- Reinforced PVDF – improves mechanical strength.
- Carbon or glass-filled PVDF – for wear or temperature resistance.
- UV-stabilized PVDF – for outdoor applications.
a) Injection Molding
- Used for small to medium valve bodies and components.
- Allows high precision and smooth surfaces for low friction and high purity.
b) Extrusion & Machining
- Extruded PVDF sheets or rods are machined into valve parts like stems, balls, or flanges.
- Offers flexibility for custom designs and sizes.
c) Welding & Bonding
- Socket fusion or butt fusion is used for assembling body parts or connecting to pipelines.
- Ensures leak-proof joints without metal fasteners in corrosive environments.
d) Assembly & Testing
- All custom PVDF valves undergo pressure and leak tests.
- Cleanroom assembly is often done for pharmaceutical, semiconductor, and ultra-pure water applications.
1. Installation of PVDF Valves
a) Preparation
- Check compatibility: Ensure the valve material (PVDF body, seals) is compatible with the fluid, temperature, and pressure.
- Inspect the valve: Look for cracks, scratches, or debris before installation.
- Pipe alignment: Ensure that the pipeline is properly aligned to avoid stress on the valve body.
b) Mounting & Connection
- Threaded Valves: Apply compatible PTFE tape or thread sealant; do not overtighten to avoid cracking.
- Socket Fusion (Solvent Weld) Valves: Clean the pipe and valve socket, apply PVDF solvent cement, and join immediately. Allow curing per manufacturer instructions.
- Flanged Valves: Use PVDF or compatible gaskets. Tighten bolts gradually in a cross pattern to avoid uneven stress.
c) Orientation
- Some valves, like check valves or diaphragm valves, must be installed in the correct flow direction (check the arrow on the body).
- Ensure actuators or handles are accessible for operation.
d) Pressure Testing
- After installation, perform a hydrostatic or pneumatic pressure test to check for leaks before full operation.
- Avoid sudden high-pressure surges that can damage PVDF.
2. Maintenance of PVDF Valves
a) Routine Inspection
- Check for leaks, cracks, discoloration, or warping.
- Inspect seals and O-rings periodically for wear.
b) Cleaning
- PVDF valves are easy to clean due to their smooth, non-porous surface.
- For chemical lines, flush with compatible solvent or water to remove deposits.
- Avoid abrasive cleaning methods that can scratch the surface.
c) Lubrication
- Typically, PVDF valves do not require lubrication, but some moving parts (e.g., stems in ball valves) may benefit from PTFE-compatible lubricant.
d) Seal Replacement
- Replace worn or damaged O-rings, seats, or diaphragms to maintain leak-free operation.
- Use only compatible materials (PTFE, FKM, EPDM, FFKM) as per the original design.
e) Handling Tips
- Avoid impact or dropping the valve, as PVDF is durable but can crack under mechanical shock.
- Protect valves from extreme UV exposure if installed outdoors, unless UV-stabilized PVDF is used.
1. Physical & Mechanical Tests
a) Thickness & Dimensions
- Purpose: Ensure sheets meet specified thickness and size tolerances.
- Method: Use calipers or micrometers; check for uniformity across the sheet.
b) Tensile Strength & Elongation
- Purpose: Measure mechanical robustness and flexibility.
- Method: ASTM D638 or ISO 527 standards for tensile testing.
- Typical PVDF Sheet Values:
- Tensile strength: ~35–50 MPa
- Elongation at break: ~50–150%
c) Flexural Strength
- Purpose: Evaluate resistance to bending under load.
- Method: ASTM D790 standard flexural test.
d) Impact Resistance
- Purpose: Test resistance to sudden shock or impact.
- Method: Izod or Charpy impact tests.
2. Thermal & Chemical Tests
a) Heat Deflection & Softening
- Purpose: Confirm PVDF sheet can withstand process temperatures.
- Method: ASTM D648 heat deflection test; typical PVDF deflection ~140–150°C.
b) Melting Point
- Purpose: Ensure correct polymer grade.
- Method: Differential Scanning Calorimetry (DSC); typical PVDF melting point ~170–175°C.
c) Chemical Resistance
- Purpose: Confirm PVDF sheet can resist intended chemicals (acids, alkalis, solvents).
- Method: Immersion tests; check for swelling, cracking, or degradation.
3. Surface & Optical Tests
a) Surface Quality
- Purpose: Detect scratches, pinholes, or inclusions.
- Method: Visual inspection or optical scanning; critical for high-purity or semiconductor applications.
b) Gloss & Color
- Purpose: Ensure uniform appearance, especially for visible components.
- Method: Gloss meters or visual comparison; PVDF sheets often transparent, translucent, or colored.
4. Purity & Electrical Properties
a) Moisture & Contaminants
- Purpose: Low moisture and no contamination for high-purity applications.
- Method: Karl Fischer titration for moisture; surface particle inspection.
b) Dielectric Strength
- Purpose: Check insulating properties for electrical applications.
- Method: ASTM D149 standard; PVDF sheets have high dielectric strength (~35–50 kV/mm).
5. Quality Standards & Certifications
- ASTM / ISO Standards: Mechanical, thermal, and chemical testing.
- RoHS / REACH Compliance: Ensures sheets are free from hazardous substances.
- FDA / USP Class VI: Required for food, pharma, and medical applications.
- Consistency Checks: Ensure batch-to-batch uniformity in thickness, color, and mechanical properties.
1. Main Body Material
- PVDF (Polyvinylidene Fluoride):
- This is the primary material for the valve body and bonnet.
- Offers excellent chemical resistance, high purity, and mechanical strength suitable for medium-pressure applications.
- Commonly used for valve sizes ranging from small (½”) to medium (6”–8”), depending on design.
2. Sealing Materials (Seats, O-rings, Diaphragms)
Seals and seats must provide leak-free operation and chemical compatibility:
- PTFE (Polytetrafluoroethylene):
- Most common for seats and O-rings.
- Excellent chemical resistance and low friction.
- FPM / FKM (Fluoroelastomer, e.g., Viton):
- Used where higher temperature resistance is required.
- Used where higher temperature resistance is required.
- EPDM (Ethylene Propylene Diene Monomer):
- Used in certain applications resistant to acids and bases but not solvents.
- Used in certain applications resistant to acids and bases but not solvents.
- FFKM (Perfluoroelastomer):
- For extremely aggressive chemical applications requiring high purity.
- For extremely aggressive chemical applications requiring high purity.
3. Internal Moving Parts (Ball, Stem, Diaphragm, etc.)
- PVDF or reinforced PVDF:
- Some parts like the ball in a ball valve or the diaphragm in a diaphragm valve are made of PVDF for chemical resistance.
- Some parts like the ball in a ball valve or the diaphragm in a diaphragm valve are made of PVDF for chemical resistance.
- Ceramic or PTFE-coated metals:
- Sometimes used for higher wear resistance or smooth operation in abrasive fluids.
- Sometimes used for higher wear resistance or smooth operation in abrasive fluids.
- Stainless steel 316L:
- Occasionally used internally (stem, screws) but must be compatible with PVDF and process fluids to avoid corrosion.
- Occasionally used internally (stem, screws) but must be compatible with PVDF and process fluids to avoid corrosion.
4. Fasteners and External Components
- PVDF-coated or plastic fasteners – prevent corrosion from external chemical exposure.
5. Optional Reinforcements
- Glass-filled PVDF – increases mechanical strength and stiffness for larger valves or higher pressure applications.
- Carbon-filled PVDF – improves wear resistance and thermal stability in demanding applications.
Benefits of PVDF Valves
1️. Excellent Chemical Resistance
- Resistant to strong acids, alkalis, and most solvents
- Ideal for corrosive environments where metal valves would fail
- Suitable for chemical, laboratory, and industrial piping systems
2️.High Temperature Stability
- Continuous operating temperature: -20°C to 140°C
- Short-term tolerance up to 150°C
- Retains structural integrity under hot fluid conditions
3️. Corrosion-Free and Non-Toxic
- Non-corrosive material ensures long service life
- Safe for pharmaceutical and food-grade applications
- Does not contaminate fluid or chemical being transported
4️. UV and Weather Resistance
- Resistant to sunlight, UV radiation, and outdoor conditions
- Suitable for outdoor installations like chemical storage systems or industrial water pipelines
5️. Lightweight and Easy to Install
- Lighter than metal valves, reducing handling and installation effort
- Compatible with threaded, socket, or flanged connections
- Reduces support structure requirements
6️. Low Maintenance
- Smooth PVDF surface resists deposits and scaling
- Minimal cleaning required compared to metals
- Fewer replacements and downtime
7️. High Purity Applications
- Ideal for ultra-pure water systems, pharmaceutical processes, and semiconductor industries
- Does not react with sensitive chemicals or fluids
8️. Mechanical Strength and Durability
- Withstands mechanical stress and pressure variations
- Retains shape and sealing performance over long service life
9️. Wide Range of Designs
- Available as ball, diaphragm, butterfly, check, and needle valves
- Manual, pneumatic, or electric actuation options
- Suitable for small piping to large industrial flow systems
Advantages of PVDF Valves
1️.Excellent Chemical Resistance
- Resistant to acids, alkalis, and most organic solvents
- Ideal for corrosive chemical environments
- Suitable for chemical tanks, piping, and liners
2️. High Thermal Stability
- Continuous use: up to 140°C
- Short-term exposure: up to 150°C
- Retains mechanical strength and shape under high temperatures
3️. UV and Weather Resistance
- Excellent resistance to sunlight and outdoor weathering
- Prevents fading, chalking, or degradation
- Suitable for roofing, facade cladding, and exterior panels
4️. Mechanical Strength and Durability
- High tensile strength and impact resistance
- Resists cracking, warping, and deformation
- Long service life even in industrial conditions
5️. Electrical Insulation
- Excellent dielectric properties
- Ideal for electrical insulation panels, battery components, and electronic housings
6️. Non-Toxic and Food Safe
- Complies with FDA standards (for food-grade PVDF)
- Safe for pharmaceutical and food-processing applications
7️. Low Maintenance
- Smooth, non-stick surface resists scaling, fouling, and deposits
- Easy to clean and maintain
- Reduces downtime and operational costs
8️. Lightweight and Easy to Fabricate
- Lighter than metal sheets
- Can be cut, welded, thermoformed, or machined into complex shapes
- Simplifies installation and handling
9️. Versatility
- Available in various thicknesses (1–50 mm), sizes, and colors
- Can be used as lining, cladding, panels, or custom components
Application of PVDF Valves
1️. Chemical Industry
- Handling strong acids, alkalis, and solvents
- Controlling flow in chemical reactors, tanks, and pipelines
- Use in corrosive chemical transfer systems
2️.Water and Wastewater Treatment
- Flow regulation in RO plants, filtration systems, and water softening units
- Resistance to chlorine and other disinfectants
- Safe for drinking water and industrial wastewater.
3️. Pharmaceutical and Food Industry
- Non-toxic, FDA-compliant materials
- Flow control in high-purity water systems
- Used in chemical dosing, pharmaceutical pipelines, and food processing
4️. Semiconductor Industry
- Ultra-pure water and chemical handling
- Corrosion-resistant valves for etching and plating chemicals
- Ensures contamination-free fluid control
5️. Laboratory and Research Applications
- Valves for chemical dosing, analytical instruments, and experimental setups
- Resistant to aggressive reagents
- Suitable for bench-scale and pilot plant operations
6️.Industrial Piping Systems
- Ball, diaphragm, and butterfly valves for plant piping and process systems
- Prevent backflow using check valves
- Used in high-purity and corrosive media pipelines
7️. Battery and Energy Applications
- Flow control in electrolyte circulation systems
- Chemical-resistant valves for fuel cell and battery manufacturing
8️. Architectural and Outdoor Systems
- Some PVDF valves are used in chemical-resistant water management systems in buildings
- UV-resistant for outdoor fluid control systems
Why Choose Petron Thermoplast?
With so many options on the market, why should you trust Petron Thermoplast for your PVDF Valves needs? The answer lies in our commitment to quality, service, and understanding your unique challenges.
We don’t just sell products—we engineer solutions. Our PVDF Valves are manufactured using the highest quality raw materials and technology, ensuring consistent performance and compliance with global standards. Every batch undergoes rigorous testing for pressure resistance, temperature tolerance, and durability, so you can be confident that what you’re installing is built to last.
As we know, multiple suppliers can slow down your project and increase costs. That’s why we offer a full range from PVDF valves to ensure you have everything that you need, all from a single source. Whether you’re working on a small industry or a large-scale commercial development, we can tailor a package that fits your exact requirements, saving your time and simplifying your supply chain.
Conclusion
PVDF valves are highly reliable components for industrial applications where chemical resistance, corrosion resistance, and high purity are critical. They are preferred in industries such as chemical processing, pharmaceuticals, food & beverage, water treatment, semiconductors, and mining because they combine durability with low contamination risk. The PVDF body, often reinforced with glass or carbon, ensures mechanical stability while maintaining chemical inertness. Available in various types—ball, diaphragm, check, globe, and gate valves—with customizable sizes, connections, and sealing materials to suit specific industrial needs. Lightweight construction, corrosion resistance, and smooth surfaces make them easy to install, operate, and maintain. They are ideal for applications requiring contamination free fluid handling, and Minimal maintenance is required, mainly involving routine inspection, seal replacement, and cleaning. PVDF valves undergo stringent testing for mechanical, thermal, chemical, and purity standards, ensuring reliability and safety.
PVDF valves are a cost-effective, durable, and versatile solution for handling aggressive chemicals and high-purity fluids, providing long-term performance in demanding industrial environments. They represent a balance between strength, chemical compatibility, and operational safety, making them a preferred choice wherever metals or other plastics fail.
Frequently Asked Questions
A PVDF valve is a valve made primarily from Polyvinylidene Fluoride (PVDF), a high-performance thermoplastic. It is designed for chemical resistance, corrosion resistance, and high-purity fluid handling in industrial applications.
- Ball valves: On/off control of fluid flow.
- Diaphragm valves: Precise flow control in corrosive fluids.
- Check valves: Prevent backflow.
- Globe & gate valves: Throttling and isolation applications.
- Multi-port/three-way valves: Custom flow paths for complex piping systems.
- Chemical processing – acids, bases, solvents.
- Pharmaceuticals & biotech – sterile and high-purity fluid handling.
- Food & beverage – hygienic, FDA-compliant applications.
- Water treatment & desalination – dosing and filtration.
- Semiconductors – ultra-pure water and chemical lines.
- Mining & metallurgy – abrasive and corrosive liquids.
- Pulp & paper – chemical processing.
- Excellent chemical and corrosion resistance.
- High purity – suitable for pharmaceutical and semiconductor use.
- Lightweight and easy to install.
- Durable and low maintenance with smooth internal surfaces.
- Compatible with custom seals, coatings, and reinforcements.
- Body & bonnet: PVDF (sometimes reinforced with glass or carbon).
- Seals & O-rings: PTFE, FKM/Viton, EPDM, FFKM.
- Internal parts: PVDF, PTFE-coated metals, ceramics, or stainless steel (316/316L).
- Fasteners: PVDF-coated plastic or stainless steel.
- Ensure proper alignment with pipelines to avoid stress.
- Use socket fusion, flanged, or threaded connections based on type.
- Check flow direction for check valves and diaphragm valves.
- Perform pressure tests after installation.
- Inspect regularly for leaks, cracks, and seal wear.
- Clean with compatible solvents or water.
- Replace worn O-rings, seats, or diaphragms.
- Avoid impact or over-tightening to prevent damage.
- Typical operating temperature: -40°C to 150°C (-40°F to 302°F).
- Pressure depends on valve size and design; reinforced PVDF can handle moderate industrial pressures.
- Not suitable for extremely high pressures or temperatures above PVDF limits.
Yes, PVDF valves can be FDA-compliant, USP Class VI, and suitable for high-purity, hygienic, and sterile applications.
