UPVC Wafer Type Check Valve
UPVC Wafer Type Check Valve Manufacturer & Supplier in India. As a safety filter, sediment strainers are meant to catch any solid pollutants that may sometimes occur in the line. We are the valve exports and other equipment with tiny orifices, such as pumps or control valves, are protected by this. The filter screen is simply changeable and available in a variety of meshes. An oscillating disc is used to open or close the valve. As a result of their design, they may be installed in exceedingly tight places, where a flanged check valve would be ineffective. As the disc opens, these valves have a moulded body surrounding the opening. In contrast, UPVC Wafer Type Check Valves have moulded bodies that enable the disc to fully swing open, enabling full flow.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
UPVC Wafer Type 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 / Typical Value | Remarks |
| Valve Type | Wafer Type Check Valve (Non-Return) | Prevents reverse flow automatically |
| Design Type | Wafer (disc / swing / dual plate / spring) | Compact, space-saving design |
| Body Material | UPVC (PVC-U) | Excellent corrosion & chemical resistance |
| Disc Material | UPVC / EPDM / FKM (Viton) | Ensures durability and sealing |
| Seal Material | EPDM / FKM (Viton) | Leak-proof and chemical resistant |
| Size Range | DN 40 to DN 300 (1½” to 12”) | Suitable for various pipeline sizes |
| Pressure Rating | PN6 / PN10 (up to 10 bar) | At 20°C operating condition |
| Temperature Range | 0°C to 60°C | Standard for UPVC valves |
| End Connection | Wafer type (between flanges) | Installed between two flanges |
| Flange Standards | DIN, ANSI, BS, ISO | Compatible with international standards |
| Flow Direction | Unidirectional | Marked on valve body |
| Installation | Horizontal or Vertical (upward flow) | Depends on design type |
| Mechanism | Automatic (disc or spring action) | No manual operation required |
| Max Pressure (MOP) | ~5–10 bar | Varies by design and size |
| Density | ~1.38–1.45 g/cm³ | Lightweight material |
| Hardness | Shore D 75–85 | Good mechanical strength |
| Water Absorption | ≤ 0.5% | Low moisture absorption |
| Thermal Cond. | Low | Good insulation property |
| Corrosion Res. | Excellent | Suitable for acids, alkalis, salts |
| Weight | Lightweight & compact | Easy handling and installation |
| Maintenance | Low | No lubrication required |
| Applications | Water, chemical, irrigation, HVAC | Wide industrial use |
Non-Return Function
Automatically prevents backflow when flow reverses
Operates without external power or manual operation
Wafer-Type Design
Slim, compact body installed between two flanges
Saves space and reduces overall system weight
UPVC Construction
Excellent corrosion and chemical resistance
Ideal for water treatment, chemical processing, and wastewater systems
Lightweight yet durable
Low Pressure Drop
Smooth internal surfaces reduce friction losses
Efficient flow characteristics
Fast Response / Quick Closing
Minimizes water hammer and system shock
Often uses spring-loaded or flap/disc mechanism
Easy Installation
No need for additional flange sets
Simple alignment between existing flanges
Low Maintenance
Fewer moving parts
No lubrication required and long service life
Leak-Tight Sealing
Elastomer seat (often EPDM or NBR) ensures good sealing
Suitable for low and medium pressure applications
Wide Application Range
Used in potable water systems, irrigation, HVAC, chemical lines, and industrial pipelines
Cost-Effective
Lower cost compared to metal check valves
Reduced installation and handling costs due to light weight
Easy Installation:
Its wafer design and simple mechanism allow for straightforward installation between flanges.
| Valve Size (DN / Inch) | Pressure Rating (PN) | Max Operating Pressure (Bar) | Test Pressure (Approx.) | Remarks |
| DN 40 – DN 125 (1½” – 5”) | PN10 | Up to 10 bar | ~15 bar | Higher pressure capacity for smaller sizes |
| DN 150 – DN 200 (6” – 8”) | PN6 | Up to 6 bar | ~9 bar | Pressure rating reduces as size increases |
| DN 250 – DN 300 (10” – 12”) | PN6 | Up to 6 bar | ~9 bar | Large diameter valves for lower pressure |
| General Standard Range | PN6 / PN10 | 6–10 bar | As per PN rating | Common industrial classification |
| Maximum Operating Pressure | — | Typically 5–10 bar | — | Depends on specific design & manufacturer |
| Hydrostatic Test (PN10) | — | 10 bar (seat) | ~15 bar (body) | Standard testing conditions for PN10 |
| Hydrostatic Test (PN6) | — | 6 bar (seat) | ~9 bar (body) | Standard testing conditions for PN6 |
| Feature | Wafer Check Valve | Flanged Check Valve |
| Profile | Slim, lightweight | Bulky, heavy-duty |
| Installation | Sandwich-style (between flanges) | Bolted directly to pipe flanges |
| Response Speed | Fast closing, less water hammer | Slower closing, higher water hammer |
| Weight | Significant reduction in weight | Heavy; may require additional support |
| Face-to-Face | Short (compact design) | Long (standard per ASME/DIN) |
| Ideal Use Cases | Space-constrained, quick-response systems | High-pressure, heavy-duty systems |
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 UPVC Wafer Type Check Valve
1. Excellent Corrosion Resistance
UPVC wafer type check valves offer outstanding resistance to acids, alkalis, salts, and aggressive chemicals, making them ideal for chemical processing, water treatment, and industrial piping systems.
2. Lightweight & Compact Design
The wafer-type construction is compact and lightweight, allowing easy installation between flanges without adding excessive load to the pipeline.
3. Reliable Backflow Prevention
Designed for unidirectional flow, UPVC wafer check valves effectively prevent reverse flow, protecting pumps, pipelines, and process equipment from damage.
4. Low Pressure Drop
The smooth internal bore and streamlined disc design minimize pressure loss, ensuring efficient fluid flow and energy savings.
5. Low Maintenance Requirements
UPVC material does not rust, scale, or corrode, resulting in minimal maintenance, reduced downtime, and longer service life compared to metal check valves.
6. Cost-Effective Solution
UPVC wafer type check valves are economical while offering excellent durability, making them a cost-effective alternative to metal valves for non-high-temperature applications.
7. Easy Installation & Replacement
The wafer design allows quick installation and easy replacement without major pipeline modifications, saving installation time and labor costs.
8. Chemical & Water Purity Safe
UPVC does not contaminate process fluids, making these valves suitable for water treatment, chemical handling, and utility applications.
10. Long Service Life
With proper application, UPVC wafer type check valves provide long-term, trouble-free operation even in chemically aggressive environments.
Types & Connections
Types of UPVC Wafer Type Check Valves
- Swing Type UPVC Wafer Check Valve
This type uses a hinged disc that opens with forward flow and closes automatically when the flow reverses. It is ideal for low-pressure systems and applications where minimal flow resistance is required.
- Spring-Loaded UPVC Wafer Check Valve
Equipped with a stainless steel or corrosion-resistant spring mechanism, this type ensures quick closing action, minimizing water hammer and backflow.
- Dual Plate (Double Door) UPVC Wafer Check Valve
Features two spring-loaded plates for faster response and reduced pressure drop. This design is suitable for larger pipe sizes and high-flow applications.
Connections of UPVC Wafer Type Check Valves
Wafer End Connection
UPVC wafer type check valves are designed to be installed between two flanges without additional bolts or threaded joints.
Flange Compatibility
UPVC wafer check valves are compatible with common international flange standards, including:
- DIN
- ANSI
- BS
- JIS (on request)
Installation Orientation
- Horizontal installation: Common for most industrial applications
- Vertical installation: Possible with spring-loaded designs (flow must be upward)
Seal & Disc Options
- Disc Material: UPVC
- Seal Materials: EPDM / FKM (Viton) for chemical compatibility
Common Uses of UPVC Wafer Type Check Valves
1. Chemical Processing Systems
UPVC wafer type check valves are widely used in chemical handling and transfer lines to prevent reverse flow of corrosive chemicals, ensuring safe and controlled operations.
2. Water Treatment Plants
Commonly installed in water purification, filtration, and distribution systems, these valves help maintain unidirectional flow and protect pumps and filters from backflow damage.
3. Effluent Treatment Plants (ETP) & Sewage Treatment Plants (STP)
Used in effluent discharge and recycling pipelines, UPVC wafer check valves resist chemical corrosion and ensure reliable performance in wastewater applications.
4. Pump Discharge & Suction Lines
Installed at pump outlets to prevent backflow and water hammer, protecting pumps, motors, and associated equipment.
5. Industrial Utility Pipelines
Ideal for cooling water, process water, and utility services, where corrosion resistance and low maintenance are critical.
6. Cooling Towers & HVAC Systems
Used in cooling water circulation lines to maintain flow direction and improve system efficiency.
7. Chemical Dosing & Metering Systems
UPVC wafer check valves ensure accurate chemical dosing by preventing reverse flow in dosing pipelines.
8. Desalination & RO Plants
Suitable for pre-treatment and low-pressure RO systems, offering corrosion resistance and compact installation.
9. OEM Equipment & Skid-Mounted Systems
Frequently used in OEM machinery, packaged systems, and skid-mounted units due to their lightweight and space-saving wafer design.
10. Industrial Process Pipelines
Applied across various industries including pharma, food processing (non-edible chemicals), textiles, paper, and power plants for dependable backflow prevention.
Why Choose Petron Thermoplast?
Petron Thermoplast is a trusted manufacturer and supplier of UPVC Wafer Type Check Valves, engineered to deliver reliable backflow prevention, long service life, and consistent performance in demanding industrial environments.
1. High-Quality UPVC Material
Our wafer type check valves are manufactured using premium-grade UPVC, offering excellent resistance to corrosion, chemicals, acids, and alkalis—ideal for chemical processing and water systems.
2. Precision-Engineered Design
Each valve is designed with accurate dimensional tolerances and smooth internal flow paths, ensuring low pressure drop and efficient operation.
3. Reliable Backflow Prevention
Petron Thermoplast UPVC wafer type check valves provide positive and fast closing action, protecting pumps, pipelines, and equipment from reverse flow and potential damage.
4. Compact & Lightweight Construction
The wafer-style design allows easy installation between flanges without adding unnecessary weight or space requirements, making it ideal for compact piping layouts.
5. Low Maintenance & Long Service Life
UPVC construction eliminates rust, scaling, and corrosion, resulting in minimal maintenance requirements and extended operational life compared to metal check valves.
6. Compatibility with Multiple Standards
Our valves are compatible with DIN, ANSI, BS, and other international flange standards, ensuring seamless integration with existing piping systems.
7. Multiple Size & Seal Options
Available in a wide range of sizes with EPDM and FKM (Viton) seals, allowing selection based on pressure, temperature, and chemical compatibility.
8. Strict Quality Control
Every UPVC wafer type check valve undergoes rigorous quality checks to ensure leak-proof performance, durability, and consistent field reliability.
9. Cost-Effective for Industrial Projects
As a manufacturer, Petron Thermoplast offers competitive pricing for bulk orders and EPC projects without compromising on quality.
10. Trusted Industrial Partner
With extensive experience in industrial thermoplastics, Petron Thermoplast is a preferred supplier for chemical plants, water treatment facilities, OEMs, and EPC contractors.
