PVDF Wafer Type Check Valve

A PVDF wafer type check valve is a type of non return valve made from Polyvinylidene Fluoride (PVDF), designed to allow fluid to flow in one direction only while preventing backflow. The “wafer” design refers to its compact, slim shape, which fits between two flanges in a piping system, saving space compared to traditional swing or globe check valves.

PVDF Wafer Type Check Valve has a sediment sieve as a safety filter to catch any solid contaminants that may sometimes be in the line. We export small hole valves and other equipment, such as pumps or control valves, protected by it. The filter screen is easily replaceable and is available in a variety of meshes. An oscillating disc is used to open or close the valve. As a result of their design, they can be installed in extremely tight spaces where a flanged check valve would be ineffective. As the disc opens, the PVDF wafer type check valve has a molded body surrounding the opening.

PVDF Wafer Type Check Valve Details

*Technical Drawing

*Technical Data

Specification	Typical Value / Description
Valve Type	Wafer‑type check valve (non‑return valve) — automatic one‑way fluid control
Body Material	PVDF (Polyvinylidene Fluoride) — high chemical resistance thermoplastic
Seal / Seat Material	Elastomers like EPDM, FPM/Viton, or PTFE options
Internal Mechanism	Swing disc, spring‑assisted disc, dual‑plate, lift, or ball type
Connection Style	Wafer type — installed between flange faces with flange bolts
Flange Compatibility	Standard flange faces (DIN / ANSI / JIS) — wafer spacing
Pressure Rating	Typically PN10 to PN16 (≈ 10–16 bar)
Temperature Range	Approx. ‑40 °C to +140 °C depending on seals and design
Flow Direction	Unidirectional — prevents counter‑flow automatically
Disc / Closure Type	Spring‑loaded disc or dual plate (fast closure, reduced water hammer)
Mounting Position	Horizontal or vertical installation

1. High-Performance PVDF Body

Made from premium PVDF thermoplastic
Excellent resistance to acids, alkalis, and solventsNon-corrosive and rust-proof
Suitable for aggressive chemical environments

2. Wafer-Style Compact Design

Installed between two pipe flanges
Slim, lightweight construction
Requires minimal installation space
Reduces piping load and support requirements

3. One Way Flow Control

Automatically prevents backflow
Protects pumps, compressors, and pipelines
Enhances system safety and reliability

4. Low Pressure Drop

Streamlined internal flow path
Efficient disc or plate movement
Maintains system performance and energy efficiency

5. Fast & Reliable Closing Mechanism

Available in swing, dual-plate, or spring-loaded types
Quick shutoff minimizes water hammer
Ensures tight sealing when flow stops

6. Wide Temperature Resistance

Typically handles temperatures up to 120–140°C
Maintains structural strength under elevated temperatures

7. Excellent Chemical & UV Stability

Resistant to UV exposure (in stabilized grades)
Long service life even in outdoor installations
Minimal degradation over time

8. Leak-Tight Sealing

Precision-molded seating surfaces
Optional elastomer or PTFE seals
Reliable sealing under varying pressures

9. Low Maintenance Requirement

Simple internal mechanism
Resistant to scale, rust, and chemical attack
Long operational life with minimal servicing.

10. Suitable for High-Purity Applications

Low extractables
Non-contaminating material
Ideal for semiconductor, pharmaceutical, and ultra-pure wafer

Temperature (°C)	Maximum Working Pressure (PN16 Valve)	Maximum Working Pressure (PN10 Valve)
20°C	16 bar	10 bar
40°C	14 bar	9 bar
60°C	12 bar	8 bar
80°C	10 bar	6 bar
100°C	8 bar	5 bar
120°C	6 bar	4 bar
140°C (max)	4 bar	3 bar

ANSI Class	Pressure Rating at 20°C
Class 150	~19 bar
Class 300*	Limited use (depends on size & design)

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 Type Check Valve

1. Excellent Chemical Resistance

PVDF offers outstanding resistance to:

Acids (sulfuric, hydrochloric, nitric)
Alkalis
Chlorinated water
Organic solvents

2. Superior Corrosion Resistance

Does not rust
Resists pitting and scaling
Maintains integrity in aggressive fluids

3. Lightweight & Easy Installation

Much lighter than metal valves
Wafer design fits between flanges
Requires less structural pipe support

4. Low Maintenance

Fewer moving parts
No external actuation
Resistant to buildup and chemical degradation

5. Good Temperature Performance

Operating temperature range typically up to 120–140°C (248–284°F)
Maintains mechanical strength at elevated temperatures compared to many other plastics

6. Smooth Flow & Low Pressure Drop

Wafer style design minimizes turbulence
Efficient disc movement reduces pressure loss
Helps maintain system efficiency

7. Long Service Life

UV resistant (in many formulations)
Excellent mechanical durability
High fatigue resistance

8. Suitable for High-Purity Applications

PVDF is commonly used in:

Ultra-pure chemical systems
Semiconductor manufacturing
Pharmaceutical production
Does not contaminate fluids
Has low extractables

9. Cost-Effective Alternative to Exotic Alloys

Hastelloy
Titanium
Other specialty alloys

Types of PVDF Wafer Type Check Valve

1. Swing Type PVDF Wafer Type Check Valve

Low-pressure systems
Horizontal pipelines
Applications with steady flow
Simple design
Low pressure drop
Cost-effective

2. Dual Plate (Double Door) PVDF Wafer Type Check Valve

Medium to high flow rates
Systems where space is limited
Installations requiring fast closure
Compact wafer design
Reduced water hammer
Lightweight

3. Spring-Loaded (Silent / Non-Slam) PVDF Wafer Type Check Valve

Vertical installations
Pump discharge lines
Systems sensitive to water hammer
Silent operation
Fast closing action
Protects pumps and pipelines

4. Ball Type PVDF Check Valve (Wafer-Style Variants)

Slurry or slightly contaminated fluids
Wastewater and chemical dosing
Self-cleaning action
Good sealing
Minimal maintenance

5. Lift Type PVDF Wafer Type Check Valve

High-pressure chemical systems
Clean fluid applications
Tight sealing
Suitable for controlled flow systems

Applications of PVDF Wafer Type 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?

Petron Thermoplast is your go to solution when you need precise flow control in industrial applications. They create higher pressure drops than some alternatives, but that tortuous flow path is exactly what gives them their incredible throttling capability. Use Petron Thermoplast PVDF Wafer Type Check Valve when You need frequent flow adjustments, Precise control is more important than minimal pressure drop, Reliable shut-off is critical, Dealing with steam, hot water, or other fluids that benefit from gradual flow changes