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China Dual Plate Wafer Lug Check Valve 4 Inch - Suppliers & Factory for High-Quality Flow Control Solutions
| Valve Type: | Wafer check valve | Structure: | Double disc |
| Standard: | BS5153 | Workmanship: | Investment casting |
| Sealing Direction: | Single-directional | Sealing Grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Self-starting |
Characteristics
This valve adopts a wafer-type mounting design, which allows it to be directly sandwiched between a pair of pipeline flanges without requiring additional extended installation space. In contrast to flange-connected check valves, this configuration substantially reduces the spatial footprint of the entire piping system, rendering it particularly suitable for narrow or constrained installation environments.
Advantages
1 Easy Installation
Adopting a clip-on installation method, i.e. chip design, it can be easily installed between two pipeline flanges, saving space, reducing the overall weight of the system, and facilitating installation in narrow spaces.
2 Good Fluid Performance
The valve disc adopts a lightweight design and is equipped with low friction bearings, with low opening pressure, low fluid resistance, and smooth flow channels, which can reduce the energy consumption of power equipment such as pumps and compressors.
3 Excellent Sealing Performance
The double valve disc is precision machined, with a smooth sealing surface, and forms a double sealing barrier with an elastic valve seat. It can quickly close when the medium flows back, and has good sealing performance.
Packing
📦 Standard export wooden case packaging
Application Scenarios
This valve finds extensive use in pipeline networks for industries ranging from water supply, sewage disposal and fire safety systems to petroleum refining, chemical manufacturing, power engineering and metallurgical operations. It demonstrates particularly strong compatibility with piping layouts where installation space is restricted.
Frequently Asked Questions
Q
What is a wafer check valve and how does it differ from a flanged check valve?
A wafer check valve is designed to be clamped directly between two pipeline flanges using bolts, eliminating the need for additional flanged ends on the valve itself. Compared to flanged check valves, the wafer type is significantly more compact, lighter, and requires less installation space, making it ideal for constrained piping environments.
Q
What is the operating temperature range of this wafer check valve?
This valve is designed to operate within a temperature range of -20°C to 120°C (-4°F to 248°F), making it suitable for a wide variety of industrial fluid applications including water supply, chemical processing, and petroleum systems.
Q
What standard does this valve comply with?
This wafer check valve is manufactured in compliance with BS5153, the British Standard specification for check valves. It ensures consistent quality, dimensional accuracy, and reliable performance in industrial pipeline systems.
Q
How does the double disc design improve sealing performance?
The double disc design features two precision-machined valve discs with smooth sealing surfaces. Together with an elastic valve seat, they form a double sealing barrier that achieves zero leakage. When the medium flows back, the discs close rapidly and reliably, preventing backflow and protecting upstream equipment.
Q
In which industries is this wafer check valve commonly used?
This valve is widely applied across multiple industries including municipal water supply and sewage disposal, fire protection systems, petroleum refining, chemical manufacturing, power generation, and metallurgical operations. Its compact wafer design makes it especially well-suited for installations with limited space.
Q
How is this wafer check valve packaged for export?
The valve is packaged in standard export wooden cases, which provide robust protection against impact, moisture, and environmental damage during international shipping and long-distance transportation. This ensures the product arrives in perfect condition at its destination.