Dual Plate Wafer Type Check Valve is an industrial valve designed for automatic reverse flow prevention and directional fluid control in pipeline systems.
Technical Specifications
|
Item |
Specification |
|
Valve Type |
Dual Plate Wafer Check Valve |
|
Design Structure |
Spring-Assisted Dual Disc |
|
Size Range |
Available according to pipeline requirements |
|
Pressure Rating |
ANSI Class / PN pressure classes available |
|
Body Materials |
Carbon Steel, LTCS, Stainless Steel, Duplex Stainless Steel, Alloy Steel |
|
Connection Type |
Wafer, Flange Configuration |
|
Sealing Materials |
Selected according to operating conditions |
|
Applicable Medium |
Water, Cooling Water, Air, Oil, Chemical and Industrial Fluids |
|
Manufacturing Standards |
ANSI, API, DIN, BS, JIS, GB requirements available |
|
Testing Requirements |
Pressure and functional testing according to project specifications |
Key Features
Spring-Assisted Dual Plate Design
Two semi-circular discs with spring-assisted closing enable fast response and reliable flow control under changing pipeline conditions.
Low Pressure Loss & Fast Response
Optimized disc movement reduces flow resistance and supports efficient flow performance, making it suitable for large-diameter pipeline systems.
Reliable Backflow Prevention
During reverse flow conditions, the discs quickly return and close tightly against the valve seat to prevent backflow and protect connected equipment.
Non-Slam Closing Performance
Spring-assisted disc movement enables controlled closing action to reduce sudden pressure fluctuations caused by flow reversal.
Compact Structure & Easy Maintenance
Compact internal design with fewer wearing components simplifies maintenance and supports long-term operational reliability.
Valve Selection
Selecting the correct dual plate wafer check valve requires evaluation of pipeline conditions and operating requirements.
Pipeline Parameters
Consider pipe size, flow conditions, and installation space before valve selection.
Pressure Requirements
Select the pressure class according to operating pressure and system conditions.
Material Compatibility
Choose suitable materials based on fluid characteristics, corrosion conditions, and temperature range.
Installation Requirements
Confirm connection type, installation position, and maintenance accessibility.
Operating Environment
Review medium properties and service conditions to ensure proper valve configuration.
Working Principle
Dual Plate Wafer Check Valve operates through two spring-assisted semi-circular discs mounted inside the valve body.
During normal flow, fluid pressure pushes the discs open to allow passage with low resistance.
When flow decreases or reverse flow occurs, the springs quickly return the discs to the closed position, preventing backflow and reducing pressure impact.
The dual plate structure provides:
- Fast closing response
- Reduced reverse flow impact
- Compact installation design
- Stable pipeline protection
Typical Applications
Pump Protection Systems
Installed on pump discharge pipelines to prevent reverse flow and help protect pumping equipment.
Water Treatment Facilities
Used in water supply, wastewater treatment, and circulation systems requiring dependable flow direction control.
HVAC & Cooling Systems
Applied in chilled water, cooling tower, and circulation pipelines requiring stable fluid operation.
Power Generation Systems
Used in cooling circuits, auxiliary pipelines, and process water systems requiring reliable flow protection.
Industrial Process Pipelines
Suitable for chemical, petrochemical, and general industrial systems requiring automatic backflow prevention.
Large-Diameter Pipeline Systems
Applied in pipeline installations requiring compact design, efficient flow performance, and reliable system protection.
Customization Options
Valve Size & Pressure Rating
Valve dimensions and pressure ratings can be configured according to pipeline requirements and operating conditions.
Material Selection
Material options can be selected according to fluid characteristics, corrosion requirements, and service environment.
Connection Type
Supporting wafer connection, flange connection, and other configurations based on pipeline installation requirements.
Seat & Sealing Materials
Sealing materials can be selected according to medium type, temperature conditions, and application requirements.
Operation Configuration
Configurations can be adjusted according to system requirements, including automatic operation and customized operating arrangements where required.
Special Design Requirements
Customized solutions are available for specific installation conditions, flow requirements, and project specifications.
Quality Control & Inspection
Material Inspection
Verify incoming materials and component specifications to ensure consistency with product requirements.
Dimensional Inspection
Check valve components and assembly dimensions to ensure manufacturing accuracy and installation compatibility.
Assembly Inspection
Inspect discs, springs, shafts, and sealing components during assembly to ensure correct valve operation.
Pressure & Performance Checks
Conduct required pressure and functional checks to verify sealing performance and operating reliability.
Final Inspection Before Shipment
Perform final appearance, configuration, and documentation checks before delivery.
Manufacturing Capability
Highly Experienced
Established in 1997, PORO provides over 25 years of experience in industrial valve manufacturing for global pipeline applications.
Multi-Material Manufacturing Capability
Supporting carbon steel, LTCS, stainless steel, duplex stainless steel, and alloy steel materials for different industrial applications.
Engineering Standard Compatibility
Manufacturing capabilities can be aligned with ANSI, DIN, BS, JIS, and GB requirements according to project specifications.
Comprehensive Valve Manufacturing Range
Producing gate valves, globe valves, check valves, ball valves, butterfly valves, slab gate valves, and forged valves for industrial pipeline systems.
FAQ
Q: What information should be provided for a valve quotation?
A: Provide valve size, pressure requirement, medium, temperature, quantity, and project specifications.
Q: Can PORO manufacture according to customer drawings?
A: Yes. Manufacturing can be based on customer drawings, technical documents, and project requirements.
Q: What industries does PORO mainly serve?
A: PORO supplies valves for water, energy, chemical, petrochemical, and industrial pipeline sectors.
Q: Can PORO support international project requirements?
A: Yes. Technical communication, documentation support, and project coordination are available.
Q: What quality documents can be supplied?
A: Inspection records, material documents, and project-required quality files can be provided.
Q: Does PORO provide OEM supply services?
A: Yes. OEM production is available for customized industrial valve requirements.
Q: How does PORO handle special project requirements?
A: Requirements are reviewed according to operating conditions, technical specifications, and installation needs.
Q: What factors influence valve service life?
A: Service life depends on operating conditions, material selection, installation quality, and maintenance practices.
Q: How does PORO support customers before shipment?
A: PORO provides inspection coordination, document review, and shipment preparation support.
Q: Why choose a manufacturer instead of a trading supplier?
A: Direct manufacturing provides better control over production, quality inspection, technical communication, and customization.
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