PVDF Check Valve
A PVDF Check Valve is a non return valve made from Polyvinylidene Fluoride (PVDF) that allows fluid to flow in one direction only and automatically prevents reverse flow in a piping system. The PVDF Check Valve is a non-return valve designed to allow fluid to flow in only one direction, preventing backflow in piping systems. The PVDF Check Valve delivers outstanding chemical resistance and mechanical strength, making it ideal for corrosive and high-purity applications. Commonly used in chemical processing, oil & gas treatment, and industrial fluid systems, the PVDF check valve ensures long-term reliability with minimal maintenance.
PVDF (Polyvinylidene Fluoride) Check Valve is a high performance thermoplastic component to prevent backflow and open when forward pressure is applied, closing automatically and flow reverse on same time. When fluid flows in the intended direction, pressure pushes the internal disc/ball/flap open.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
PVDF Check Valve Details
d – Outer Diameter of Pipe (mm)
DN – Nominal Diameter
PN – Pressure Nominal (Bar)
E – Flange Thickness / End Thickness (mm)
H – Overall Height (mm)
L – Length of Socket or Hub (mm)
Z – Center-to-End Distance (mm)
| d (DN) | d (inch) | PN | D (mm) | L (mm) | t (mm) | H (mm) |
| 20 | 1/2″ | 16 | 54 | 104 | 16 | 88 |
| 25 | 3/4″ | 16 | 65 | 125 | 19 | 106 |
| 32 | 1″ | 16 | 74 | 148 | 22 | 126 |
| 40 | 1 1/4″ | 16 | 86 | 171 | 26 | 145 |
| 50 | 1 1/2″ | 16 | 98 | 189 | 31 | 158 |
| 63 | 2″ | 16 | 119 | 222 | 38 | 184 |
| Parameter | Details |
| Product Type | Check Valve (Non-return / One-way valve) |
| Material (Body) | Polyvinylidene Fluoride (PVDF) |
| Internal Components | PVDF / PTFE / Stainless Steel (spring, disc/ball) |
| Seal Material | EPDM / FKM (Viton) / PTFE |
| Valve Type | Ball type / Spring-loaded / Swing / Diaphragm |
| Working Principle | Opens with forward pressure, closes to prevent reverse flow |
| Function | Prevents backflow in piping systems |
| Construction | Compact, corrosion-resistant thermoplastic design |
| Connection Type | Threaded (BSP/NPT) / Socket / Flanged |
| Available Sizes | DN15 to DN100 (½″ to 4″ typical) |
| Pressure Rating | Up to PN10–PN16 (≈10–16 bar / 150 PSI) |
| Operating Pressure | Depends on size & type (typically up to 10 bar) |
| Cracking Pressure | ~0.3 to 1.2 bar (varies by size/design) |
| Operating Temperature | -20°C to +120°C (up to 150°C in some cases) |
| Flow Direction | Uni-directional (one-way flow) |
| Installation Position | Horizontal or vertical (as per flow direction) |
| Actuation Type | Automatic (no external power required) |
| Flow Coefficient (Cv/Kv) | Depends on size and design |
| Pressure Drop | Low to moderate depending on valve type |
| Density (PVDF) | ~1.75 – 1.78 g/cm³ |
| Tensile Strength | ~35 – 50 MPa |
| Chemical Resistance | Excellent (acids, alkalis, solvents, oxidizers) |
| Thermal Stability | High temperature resistance |
| UV Resistance | Excellent (suitable for outdoor use) |
| Surface Finish | Smooth internal bore (reduces friction loss) |
| Leakage Protection | Tight sealing with O-rings/seat design |
| Maintenance | Low maintenance, simple construction |
| Design Feature | Automatic operation based on pressure differential |
| Applications | Chemical processing, water treatment, pharma, high-purity systems |
One-Way Flow Control: Prevents reverse flow to protect pumps, filters, and process systems.
High Chemical Resistance: PVDF body resists acids, bases, and aggressive chemicals.
Durable Construction: Engineered for high performance in extreme temperatures and pressures.
Low Cracking Pressure: Opens easily at low differential pressure for efficient operation.
Compact & Lightweight: Space-saving design for easy installation and system integration.
Minimal Maintenance: Simple structure reduces wear and extends service life.
Multiple Connection Options: Available in socket, threaded, and flanged ends.
| Type / Model / Source | Size Range | Connection Type | Pressure Rating (Nominal) | Notes |
| PVDF Check Valve (general) | ½″ – 6″ (DN15–DN150) | Socket / Threaded / Flanged | PN10 / 10 bar ≈ 150 PSI | Standard for many industrial PVDF check valves. |
| Jaco Male NPT Kynar PVDF Check Valves | Small threaded | NPT | ~150 PSI typical design | PVDF / Kynar body; pressure rating often inferred at ~150 PSI. |
| Thermoplastic PVDF Y-Check Valves (Hayward) | ½″ – 1″ | Threaded | 150 PSI (≈10 bar) | Non-shock rated at ~70 °F / 23 °C. |
| Flanged PVDF Check Valve | ½″ – 6″ | Flanged | Up to 10 bar (~150 PSI) | Pressure depends on standard (ANSI/DIN) and design. |
| PVDF Check Valve (McMaster-Carr) | 1/8″ – ½″ (approx) | NPT Male × NPT Male | Up to ~220 PSI @ 70 °F (~15 bar) | Smaller valves sometimes rated higher in low temp, short duty conditions. |
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.
Benefits of Using PVDF Check Valve
1. Excellent Chemical Resistance
- Highly resistant to acids, bases, salts, and many solvents
- Ideal for aggressive chemical processing applications
2️. High Temperature Resistance
- Suitable for continuous service up to ~140–150 °C (depending on design)
- Maintains strength better than PVC or PP at elevated temperatures
3️ Corrosion-Free Performance
- Will not rust or corrode like metal valves
- Long service life in harsh environments
4️. Lightweight
- Much lighter than metal check valves
- Easier handling and installation
5️. Low Maintenance
- Smooth internal surface reduces scaling and buildup
- Automatic operation (no external actuation required)
6️. High Purity & Clean Applications
- Suitable for pharmaceutical, semiconductor, and oil , gas treatment systems
- Low extractables and contamination risk
7️.Good Mechanical Strength
- Strong and durable thermoplastic
- Good impact resistance compared to many plastics
8️. UV & Weather Resistant
- Suitable for outdoor installations
- Good resistance to sunlight degradation
Types of PVDF Check Valve
1. Ball Type PVDF Check Valve
- Uses a ball that moves up and down with flow.
- When flow stops or reverses, the ball seats and blocks backflow.
- Suitable for vertical installations.
- Common in chemical dosing systems.
2️. Swing Type PVDF Check Valve
- Uses a hinged disc/flap that swings open with forward flow.
- Closes automatically when flow reverses.
- Best for low-pressure drop applications.
- Typically installed in horizontal pipelines.
3️. Spring-Loaded (Lift Type) PVDF Check Valve
- Contains a spring mechanism to assist closing.
- Faster closing action reduces chemical hammer.
- Suitable for higher pressure systems.
- Can be installed horizontally or vertically.
4️.Diaphragm Type PVDF Check Valve
- Uses a flexible diaphragm to control flow.
- Ideal for high-purity and sensitive applications.
- Common in pharmaceutical and semiconductor industries.
5️. Dual Plate / Wafer Type (Less Common in PVDF)
- Compact design.
- Installed between flanges.
- Used where space is limited.
Applications of PVDF Check Valve
Process Industry
High Purity Applications
Electronic Industry
Electrical Industry
Semi-conductors Industry
Pharmaceutical Industry
Solar power panels
Sugar Industry
Paper & Pulp Industry
Nuclear Power Industry
Automotive Industry
DI water plants
Why Choose Petron Thermoplast?
The Petron Thermoplast PVDF Check Valve is a versatile and reliable type of valve that is used in a variety of industrial applications. They offer precise over fluid flow control, are easy to maintain, and are available in PVDF materials and configurations.
They are an ideal choice for applications requiring precise control over fluid flow and low maintenance requirements. When it comes to industrial-grade systems, the choice of the right manufacturer is as important as the material itself. Petron Thermoplast has earned a reputation as a trusted global leader in the field of PVDF Check Valves and industrial flow solutions. Our products are known for precision, performance, and durability, designed to meet the most demanding industry standards across the chemical and infrastructure sectors.
