Single Plate Check Valve
TOT single plate check valve are designed to be used on flanges of standards ANSI, DIN or JIS. It is made of Stainless Steel ( CF8/CF8M), and has very high corrosion resistance.
Are you looking for a space-saving check valve that guarantees tight shutoff and long-term reliability?
Our Single Plate Check Valve is engineered to meet your industrial flow control needs—whether you’re operating in waterworks, chemical processing, HVAC, or energy systems.
Whether you need 1 piece or more, we can deliver tested, performance-qualified products on time.
Description
Single plate check valve, also known as single-disc check valve, is a wafer swing check valve designed to allow fluid flow in one direction and prevent backflow. It has a valve plate that can be hinge open or closed to control fluid flow.
This single plate wafer check valve features a compact body, low pressure loss, and a spring-assisted non-slam design. It fits seamlessly between flanges and is ideal for both horizontal and vertical installations. With its short face-to-face design and corrosion-resistant materials, you’ll benefit from both performance and durability.
Get a quote now and let us help you find the right single plate check valve for your application in the shortest possible time.
Single Plate Check Valve Features
- Single plate check valve design complies to API-6D & ASME B16.34.
- Wafer Type, Short Body – Perfect for confined installations
- Spring-Loaded Disc – Ensures fast, quiet shutoff (non-slam)
- Dual Installation Options – Horizontal or vertical pipe mounting
- Minimal Pressure Drop – Streamlined design for flow efficiency
- Multiple Sealing Options – RPTFE, PTFE, EPDM, NBR, or FKM for different media
- Wide Range of Materials – CF8, CF8M, WCB, or Custom Alloys
- Maintenance-Free Operation – No manual intervention needed after installation
Main Technical Parameters & Performance
| Part | Materials |
|---|---|
| Body | CF8, CF8M, WCB, or Custom Alloys |
| Disc | |
| Seat | RPTFE, PTFE, EPDM, NBR, or FKM |
| Gasket |
*Custom materials are available upon request.
Bidirectional Knife Gate Valve Dimensions
TOT valve can provide you with various sizes of single plate check valve. We have listed some water type single plate check valve sizes for PN10/16 for your reference.
If you don’t have the single plate wafer type check valve you need, you can contact us immediately. Our professional sales manager will contact you and can provide you with exclusive ODM and OEM services.
| Size | PN | E | Ø De | H | Ø P | L | A (°) | Ø d2 | Ø D2 | Ø d1 | Ø D1 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | In | |||||||||||
| 50 | 2″ | PN10/16 | 14 | 109 | 1 | 27 | 33.7 | 65 | 80.7 | 3.8 | 29.3 | 3 |
| 65 | 2-1/2″ | 14 | 129 | 2 | 28 | 42.1 | 65 | 100.2 | 34.8 | |||
| 80 | 3″ | 14 | 144 | 3 | 43.5 | 54.2 | 60.4 | 107.8 | 48.7 | |||
| 100 | 4″ | 18 | 164 | 60 | 72.1 | 62.9 | 134.8 | 62.9 | 3.8 | |||
| 125 | 5″ | 18 | 194 | 5 | 83.5 | 92.9 | 62.7 | 158 | 84.8 | |||
| 150 | 6″ | 20 | 220 | 100 | 111.9 | 65.4 | 186 | 101.5 | ||||
| 200 | 8″ | PN16 | 22 | 275 | 141 | 150.3 | 61.5 | 240.1 | 144 | |||
| 250 | 10″ | 26 | 331 | 6 | 179 | 190.5 | 63.4 | 284.4 | 181.6 | |||
| 300 | 12″ | 32 | 386 | 10 | 212 | 228.1 | 67.8 | 328 | 6 | 216.4 | 6 | |
| 350 | 14″ | 38 | 446 | 12 | 246 | 253.4 | 64.1 | 385 | 8 | 259.2 | 8 | |
| 400 | 16″ | 44 | 497 | 285 | 291.4 | 63.5 | 435 | 298 | ||||
| 450 | 18″ | 50 | 557 | 320 | 328.4 | 64.5 | 486 | 336.2 | ||||
| 500 | 20″ | 56 | 619 | 366 | 366.4 | 65.5 | 534 | 382.2 | ||||
| 600 | 24″ | 62 | 736 | 14 | 448 | 446.4 | 65.5 | 630 | 468.2 | |||
Applications That Require High Reliability
You can confidently install our Single Plate Check Valve in critical systems where reverse flow is not an option:
- Water Supply and Wastewater Treatment
- HVAC and Cooling Water Systems
- Chemical and Petrochemical Plants
- Pulp and Paper Industry
- Oil & Gas Transfer Pipelines
- Power Generation and Utilities
- Desalination Plants and Marine Applications
FAQ
What is a single plate check valve?
A single plate check valve, also known as a wafer check valve or swing check valve, is designed to prevent reverse flow in pipelines. It features a thin, single-disc design that allows for compact installation between flanges and operates automatically based on flow pressure.
How does a single plate check valve work?
The valve operates by allowing fluid to flow in one direction, pushing the disc open. When the flow stops or reverses, the disc swings back to its closed position, preventing backflow. This mechanism ensures unidirectional flow and protects equipment from potential damage due to reverse flow.
Can single plate check valves be installed vertically?
Yes, single plate check valves can be installed in both horizontal and vertical orientations. However, for vertical installations, it’s essential to ensure that the flow direction is upward to allow the disc to open properly.
What are the differences between single plate and dual plate check valves?
| Feature | Single Plate Check Valve | Dual Plate Check Valve |
| Disc Design | One Disc | Two Discs |
| Body Thickness | Thinner | Thicker |
| Weight | Lighter | Heavier |
| Installation Space | Requires less space | Requires more space |
| Cost | Generally lower | Generally higher |
| Flow Resistance | Slightly higher | Lower |
| Application | Suitable for low to moderate flow rates | Suitable for high flow rates |
The choice between the two depends on specific system requirements, including flow rate, pressure, and space constraints.
How do I select the right single plate check valve for my system?
When selecting a single plate check valve, consider the following factors:
- Size and pressure rating: Ensure the valve matches the pipeline’s diameter and operating pressure.
- Material compatibility: Choose materials that are compatible with the media (e.g., water, chemicals) and operating conditions.
- Installation orientation: Confirm whether the valve will be installed horizontally or vertically.
- Flow characteristics: Assess the flow rate and velocity to ensure the valve operates efficiently.
Consulting with a valve specialist or referring to manufacturer specifications can aid in making the appropriate selection.
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