CPVC Wafer Check Valve

A CPVC Wafer Check Valve is a non return valve made from Chlorinated Polyvinyl Chloride (CPVC), designed to allow fluid to flow in one direction and automatically prevent backflow in a piping system. It is called a CPVC Wafer Check Valve because of its slim, compact design that fits between two flanges using bolts, without requiring additional pipe length. When fluid flows in the forward direction, pressure pushes the internal disc open. If the flow reverses, the disc automatically closes due to back pressure, preventing reverse flow.

CPVC Wafer Check Valve Manufacturers and Suppliers in India. As a safety filter, the sediment sieve is meant to capture any solid contaminants that may sometimes be in the line. We export valves and other equipment with small holes, such as pumps or control valves, protected by it. The filter screen is easily replaceable and available in a variety of meshes. As a result of their design, they can be installed in extremely tight spaces where a CPVC Wafer Check Valve would be ineffective. As the disc opens, the CPVC wafer check valve has a molded body surrounding the opening. CPVC Wafer Check Valves are used in situations where flow is not a concern.

CPVC Wafer Check Valve Details

D: Nominal Pipe Outside Diameter
DN: Nominal Diameter Bore
OP: Operating Pressure Range (in bar)
De: Outer Fitting Diameter
Z: Face-to-Face Width (Thickness)
Di: Internal Opening Diameter
A: Inner Flange Diameter
B: Disc Clearance Distance (When open)
C: Lower Body Height

D	DN	OP	De	Z	Di	A	B	C
50	40	0-5	95	16	22	72	25	28
63	50	0-5	109	20	32	86	37	29
75	65	0-5	129	20	40	105	50	31
90	80	0-5	144	20	54	119	61	32
110	100	0-5	164	22	70	146	77	31
140	125	0-5	195	23	92	173	94	35
160	150	0-5	220	25	105	197	100	40
225	200	0-5	275	35	154	255	152	38
280	250	0-5	330	40	192	312	180	41
315	300	0-5	380	45	227	363	215	41

Parameter	Specification
Material (Body)	CPVC (Chlorinated Polyvinyl Chloride)
Disc / Plate Material	CPVC / PVC / Stainless Steel (optional)
Spring Material	Stainless Steel (SS304 / SS316) / Hastelloy (optional)
Seal Material	EPDM / FKM (Viton)
Valve Type	Wafer Check Valve / Dual Plate Check Valve
Operation	Automatic (Non-return)
Nominal Size Range	2” to 12” (DN50 – DN300)
Installation Type	Wafer (fits between flanges)
Connection Standard	ANSI B16.5, DIN PN10 / PN16, JIS
Pressure Rating	PN10 / PN16 / Class 150
Max Working Pressure	Up to 10–16 bar @ 23°C
Temperature Range	0°C to 95°C (max ~93°C typical)
Face-to-Face Standard	API 594 / ISO 5752
Flow Direction	One-way
Cracking Pressure	Very low (designed for minimal head loss)
Testing Standard	ISO 5208
Installation	Horizontal or Vertical (upward flow)
Density	~1.45–1.58 g/cm³
Color	Grey / Off-white
Corrosion Resistance	Excellent resistance to acids, alkalis, salts
Chemical Resistance	Suitable for aggressive chemical media
Surface Finish	Smooth internal bore → low head loss
Thermal Resistance	Higher temperature resistance than PVC
Mechanical Strength	Good tensile and impact strength
Weight	Very lightweight (compact wafer design)
Durability	Long service life, non-corrosive
Scaling Resistance	No rust or scale formation
UV Resistance	Moderate (can be improved with additives)

Corrosion-Resistant Body
Manufactured from high-quality CPVC material that resists acids, alkalis, and aggressive chemicals.
Wafer-Type Compact Design
Slim and lightweight structure that fits between two flanges, saving installation space.
Automatic Operation
Works without manual or electrical actuation—opens and closes based on line pressure.
Backflow Prevention
Effectively prevents reverse flow, protecting pumps and equipment.
Low Pressure Drop
Smooth internal design ensures efficient flow with minimal resistance.
High Temperature Resistance
Suitable for operating temperatures up to approximately 90°C–95°C.
Lightweight Construction
Easier handling and installation compared to metal valves.
Leak-Tight Sealing
Equipped with EPDM, Viton, or PTFE seals for reliable shut-off.
Low Maintenance Requirement
Non-metallic body prevents rust, scaling, and corrosion buildup.
Multiple Design Options
Available in swing type, dual plate type, and spring-loaded designs.
Wide Size Range
Available in various pipe sizes for different industrial applications.
Chemical Compatibility
Suitable for water, acids, alkalis, and industrial chemicals.

Nominal Size (DN)	Size (Inch)	Pressure Rating (PN)	Maximum Working Pressure (Bar)	Test Pressure (Bar)	Temperature Range
15 – 50 mm	½” – 2”	PN 16	Up to 16 Bar	24 Bar	Up to 90°C
65 – 100 mm	2½” – 4”	PN 16	Up to 16 Bar	24 Bar	Up to 90°C
125 – 150 mm	5” – 6”	PN 10	Up to 10 Bar	15 Bar	Up to 90°C
200 – 300 mm	8” – 12”	PN 10	Up to 10 Bar	15 Bar	Up to 90°C

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 CPVC Wafer Check Valve

1. Excellent Corrosion Resistance

Made from CPVC material, it resists acids, alkalis, salts, and other aggressive chemicals, making it ideal for chemical industries.

2. Prevents Backflow Automatically

Operates automatically using line pressure to stop reverse flow, protecting pumps and equipment.

3. Compact & Space-Saving Design

The wafer-type structure fits between two flanges, requiring less installation space.

4. Lightweight Construction

Easier to handle and install compared to metal check valves.

5. Low Maintenance

Non-metallic body prevents rust, scaling, and corrosion, reducing maintenance costs.

6. High Temperature Capability

Suitable for temperatures up to approximately 0°C–100°C.

7. Cost-Effective Solution

More economical than alloy check valves for corrosive applications.

8. Long Service Life

Resistant to wear, chemical attack, and environmental degradation.

9. Leak-Proof Sealing

Equipped with durable sealing materials like EPDM, Viton, or PTFE for a tight shut-off.

10. Wide Industrial Applications

Suitable for Chemical processing, Water and wastewater treatment, Fertilizer and plating industries

Types of CPVC Wafer Check Valve

1. Swing Type CPVC Wafer Check Valve

Contains a hinged disc that swings open with forward flow.
Closes automatically when the flow reverses.
Suitable for low-velocity and horizontal pipelines.
Simple design with low pressure drop.

2. Dual Plate (Double Door) CPVC Wafer Check Valve

Features two spring-loaded plates mounted on a central hinge.
Opens with forward pressure and closes quickly to prevent water hammer.
Compact and lightweight design.
Suitable for medium to high-pressure systems.

3. Spring-Loaded (Non-Slam) CPVC Wafer Check Valve

Uses a spring mechanism to assist fast closing.
Reduces water hammer and reverse shock.
Ideal for vertical and high-velocity pipelines.
Provides smooth and silent operation.

4. Lift Type CPVC Wafer Check Valve

Disc moves vertically (up and down) to allow flow.
Suitable for high-pressure systems.
Typically installed in horizontal pipelines.

5. Tilting Disc CPVC Wafer Check Valve

Disc tilts slightly to allow flow.
Faster response compared to swing type.
Suitable for systems requiring quick shut-off.

Featured List of Applications

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 CPVC Wafer Check Valve manufacturers and suppliers in India, delivering high-performance mechanical splicing solutions for civil and structural engineering sectors. Our CPVC Wafer Check Valve is crafted using certified materials and advanced machining processes to be strong and reliable, ensuring the connections in every project.