PVDF Wafer Check Valve with Hastelloy C Spring
A PVDF Wafer Check Valve with Hastelloy C Spring is a non return (one-way) valve designed to allow fluid to flow in one direction while automatically preventing backflow. PVDF (Polyvinylidene Fluoride) is a high performance, chemically resistant thermoplastic. A PVDF Wafer Check Valve with Hastelloy C Spring — a corrosion-resistant nickel-chromium-molybdenum alloy used in highly aggressive chemical environments. A compact, lightweight valve style that fits between two pipe flanges. A PVDF Wafer Check Valve with Hastelloy C Spring is a corrosion-resistant, spring-loaded non-return valve installed between flanges, using a PVDF body for chemical resistance and a Hastelloy C alloy spring for durability in aggressive fluid environments.
The valve body and internal components are constructed from Polyvinylidene Fluoride (PVDF), offering excellent chemical resistance. Its compact wafer-style design allows for easy installation between flanges in tight spaces, commonly used in chemical processing, pharmaceutical, and oil and gas treatment industries.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
PVDF Wafer Check Valve with Hastelloy C Spring Details
Size – Nominal Size (Inches)
DN – Nominal Diameter (mm)
D – Outside Diameter
D1 – Pitch Circle Diameter (PCD)
D2 – Bore Diameter
K – Bolt Hole Circle / Bolt Pattern
H – Overall Height
H1 – Inner / Effective Height
C – Body Thickness / Face Width
| Size | DN | D (Outside Ø) | D1 (PCD) | D2 (Bore Ø) | K | H | H1 | C |
| 2” | 50 | 165 | 125 | 52 | 4 × Ø18 | 43 | 78 | 25 |
| 2-1/2” | 65 | 185 | 145 | 67 | 4 × Ø18 | 46 | 82 | 27 |
| 3” | 80 | 200 | 160 | 81 | 8 × Ø18 | 50 | 88 | 29 |
| 4” | 100 | 220 | 180 | 102 | 8 × Ø18 | 56 | 96 | 32 |
| 5” | 125 | 250 | 210 | 127 | 8 × Ø18 | 60 | 105 | 35 |
| 6” | 150 | 285 | 240 | 154 | 8 × Ø22 | 66 | 115 | 38 |
| Technical Parameter | Specification |
| Body Material | PVDF (Polyvinylidene Fluoride) |
| Spring Material | Hastelloy C Alloy |
| Disc Material | PVDF or PTFE-lined |
| Valve Type | Wafer Check Valve with Spring |
| Connection Type | Wafer type for insertion between flanges (ANSI/DIN) |
| Size Range | 15 mm to 300 mm |
| Pressure Rating | PN10 to PN16 |
| Temperature Range | -40°C to +140°C (depending on seal and spring material) |
| Operation Mode | Spring-assisted, non-return |
| Standards Compliance | ISO, ANSI, DIN (as per flange standards) |
Corrosion Resistance: PVDF body and components withstand highly corrosive media; Hastelloy C spring offers superior resistance to chemical attack and stress corrosion.
Compact Wafer Design: Space-saving profile fits between standard flanges for easy installation.
Reliable Backflow Prevention: Spring-assisted disc ensures quick valve closure to prevent reverse flow.
Low Pressure Drop: Streamlined internal design minimizes flow resistance and energy loss.
Lightweight and Durable: Non-metallic body reduces weight without compromising strength.
Maintenance Friendly: Simple design allows easy inspection and servicing.
Wide Application: Suitable for aggressive chemicals, acids, alkalis, and high-purity fluids.
Temperature and Pressure Resistant: Designed to perform reliably under a range of operating conditions.
| Valve Size (DN / Inch) | Standard Class (ANSI) | Max Working Pressure @ 20°C | Approx. Pressure in Bar | Typical Temperature Range |
| DN15–DN50 (½″–2″) | Class 150 | 150 psi | 10 bar | 0°C to 120–140°C* |
| DN65–DN100 (2½″–4″) | Class 150 | 150 psi | 10 bar | 0°C to 120–140°C* |
| DN125–DN200 (5″–8″) | Class 150 | 150 psi | 10 bar | 0°C to 110–120°C* |
| DN15–DN100 | PN10 (DIN) | 10 bar | 10 bar | 0°C to 120–140°C* |
| DN15–DN100 | PN16 (DIN) | 16 bar | 16 bar | 0°C to 100–120°C* |
Pressure–Temperature Derating (Typical for PVDF Body)
| Temperature (°C) | Approx. Maximum Allowable Pressure |
| 20°C | 10–16 bar |
| 50°C | 8–12 bar |
| 80°C | 6–10 bar |
| 100°C | 4–8 bar |
| 120°C | 2–5 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.
Benefits of Using PVDF Wafer Check Valve with Hastelloy C Spring
1️. Excellent Corrosion Resistance
- PVDF body resists strong acids, bases, salts, and solvents.
- Hastelloy-C spring withstands chlorides, oxidizing acids, and harsh chemical media.
- Ideal for aggressive and corrosive environments.
2️. Reliable Backflow Prevention
- Spring-loaded design ensures fast and automatic closing.
- Minimizes reverse flow and protects pumps, compressors, and pipelines.
- Reduces risk of chemical hammer compared to non-spring designs.
3️. Lightweight & Easy Installation
- Wafer design fits between flanges, saving space.
- Much lighter than metal valves.
- Lower installation and support costs.
4️. Long Service Life
- High chemical stability reduces material degradation.
- Corrosion-resistant spring prevents internal failure.
- Less frequent maintenance and replacement.
5️. High Purity & Clean Applications
- PVDF offers smooth internal surfaces.
- Suitable for:
- Chemical processing
- Oil & Gas treatment
- Pharmaceutical systems
- High-purity fluid handling
6️. Good Temperature Resistance
- Typically handles temperatures up to 120–140°C (depending on pressure).
- Maintains mechanical strength better than many other plastics.
7️. Cost-Effective for Corrosive Media
- More economical than exotic all-metal alloy valves.
- Reduces downtime caused by corrosion damage.
Types of PVDF Wafer Check Valve with Hastelloy C Spring
1️.Spring-Loaded (Silent) Wafer Check Valve
- Most common type
- Single disc with Hastelloy-C spring assistance
- Closes quickly to reduce water hammer
- Suitable for pumps and vertical/horizontal lines
2️. Dual Plate (Double Door) Wafer Check Valve
- Two semicircular discs (butterfly-style)
- Spring-assisted closing
- Compact and lightweight
- Lower pressure drop compared to lift type
3️. Lift Type Wafer Check Valve
- Disc lifts vertically with flow
- Spring pushes disc back to seat
- Good sealing performance
- Higher pressure drop than dual plate type
4️. Ball Type Wafer Check Valve (Less Common in PVDF)
- Uses a ball as the closing element
- Spring-assisted return
- Suitable for slurry or slightly contaminated fluids
Applications of PVDF Wafer Check Valve with Hastelloy C Spring
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?
Petron Thermoplast is one of the trusted PVDF Wafer Check Valve with Hastelloy C Spring manufacturers and suppliers in India, delivering high-performance mechanical splicing solutions for civil and structural engineering sectors. Our PVDF Wafer Check Valve with Hastelloy C Spring is crafted using certified materials and advanced machining processes to be strong and reliable, ensuring the connections in every project.
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