Disc Check Valve
Description
DISC CHECK VALVE
Industrial Non-Return Disc Check Valves | Wafer / Flanged | PN16 / PN40 | DN 15 – 300
MNC Industrial Valves is a reliable Disc Check Valve Manufacturer in India, manufacturing compact non-return valves designed for automatic backflow prevention in industrial pipeline systems.
Disc check valves use a spring-loaded disc mechanism which allows forward flow and automatically closes when flow reverses, protecting pumps and pipeline equipment.
These valves are widely used in water treatment plants, chemical plants, utilities, process industries, HVAC systems, and industrial fluid pipelines where compact installation and fast closing response are required.
MNC Disc Check Valves are engineered for quick response, reduced water hammer, low pressure drop, and reliable sealing performance.
MANUFACTURING STANDARDS
| Design Standard | EN 12516 / ASME B16.34 |
| Face to Face Dimension | Manufacturer Standard |
| Flange Standard | EN 1092-1 / ASME B16.5 |
| Inspection & Testing | API 598 |
| Valve Marking | MSS SP-25 |
PRODUCT OVERVIEW
- Valve Type: Disc Check Valve
- Function: Non-Return / Backflow Prevention
- Disc Type: Spring Loaded Disc
- Operation: Automatic
- Installation: Horizontal or Vertical (Upward Flow)
Disc check valves are designed for fast closure and compact pipeline installation.
SIZE RANGE
Manufacturing Range: DN 15 mm to DN 300 mm
PRESSURE RATING
Available Pressure Ratings: PN16, PN40
Pressure-temperature ratings depend on body material and sealing design.
END CONNECTION
Wafer Type
Flanged Type
Wafer valves are installed between pipeline flanges.
TEMPERATURE RANGE
Typical operating range: -20°C to +200°C
Actual temperature limits depend on seat material.
MATERIAL OF CONSTRUCTION (MOC)
| Component | Material Options |
|---|---|
| Body | ASTM A216 WCB, CF8 (SS304), CF8M (SS316) |
| Disc | SS304, SS316 |
| Seat | Metal Seat, Optional PTFE seat |
| Spring | SS304 / SS316, Optional Inconel |
| Retainer | SS410 / SS420 |
DESIGN FEATURES
- Compact wafer design
- Spring assisted closing mechanism
- Fast response disc closure
- Low pressure drop
- Reduced water hammer effect
- Lightweight construction
- Reliable sealing performance
- Suitable for compact pipeline systems
- Minimal maintenance requirement
WORKING PRINCIPLE
Disc check valves operate using fluid pressure and spring force.
During forward flow: Fluid pressure pushes the disc open.
During reverse flow: The spring pushes the disc closed immediately.
This prevents reverse flow and protects pumps and pipeline equipment.
INDUSTRIES & APPLICATIONS
Disc Check Valves are commonly used in:
- Water Treatment / Chemical Processing
- Industrial Utilities / Power Plants
- HVAC & Cooling Water Systems
- Steel & Cement Plants
- Pharmaceutical / Food Processing
Typical Applications:
- Pump discharge pipelines
- Utility & Process water pipelines
- Chemical & Fluid pipelines
- Compressed air systems
TESTING & QUALITY
All valves are tested according to API 598. Procedures include:
- Hydrostatic shell testing
- Seat leakage testing
- Visual inspection
ADVANTAGES OF DISC CHECK VALVES
Compact design, Low installation space, Fast closing action, Reduced water hammer risk, Low pressure drop, Lightweight construction, Reliable automatic operation, Suitable for small and medium pipelines.
INSTALLATION GUIDELINES
- Install between pipeline flanges with proper alignment
- Ensure correct flow direction marking
- Avoid installation in vertical downward flow
- Ensure debris-free pipeline before installation
- Provide adequate pipeline support
Frequently Asked Questions
ENQUIRY DETAILS REQUIRED
Please provide the following details for proper valve selection:
- Pipeline Size (DN / Inch)
- Pressure Rating (PN16 / PN40)
- Body Material
- Process Media
- Operating Temperature
- End Connection Type
- Quantity
- Application Details
Our engineering team will assist in selecting the correct Disc Check Valve.
