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China Suppliers Factory H71X-10/16 Wafer Dual Disc Check Valve BS5153 Standard DN40-DN700
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
Adopting a clamp type structure, it can be directly clamped between two pipeline flanges without the need for additional long-distance installation space. Compared with flange connected check valves, it greatly reduces the overall space occupied by the pipeline system, especially suitable for narrow installation conditions.
Advantages
1
Low fluid resistance and low energy consumption
The valve body flow channel is mostly designed with streamlined design, and the valve disc is lightweight (commonly double disc or single plate structure). The required medium thrust for opening is small, and there is less turbulence loss when the medium passes through. It can effectively reduce the operating energy consumption of upstream power equipment such as pumps and compressors, and improve the transportation efficiency of pipeline systems.
2
Sensitive opening and closing, good anti-backflow effect
Relying on the pressure difference of the medium itself to achieve automatic opening and closing, without external driving devices. When the medium flows forward, the valve disc opens quickly; Once the medium flows back, the valve disc quickly closes under the back pressure, self weight, or spring assistance of the medium, with a fast response speed, which can effectively prevent the medium from flowing back and avoid damage caused by equipment water hammer impact or medium backflow.
3
Stable sealing performance
Valve seats are often made of elastic materials (such as nitrile rubber, fluororubber) or metal hard sealing structures, which tightly adhere to the sealing surface of the valve disc. Some models adopt a dual seal design, which can adapt to the sealing requirements of different media. Whether it is low-pressure media such as clean water and sewage, or medium and high-pressure media in the petroleum and chemical fields, it can achieve good sealing and reduce the risk of leakage.
Packing
Standard export wooden case packaging
Application Scenarios
Widely used in pipeline systems in industries such as water supply, sewage treatment, fire protection, petroleum, chemical, power, metallurgy, etc., especially in pipeline systems with limited space, it has good adaptability.
Frequently Asked Questions
Q
What is a wafer check valve and how does it work?
A wafer check valve is a type of non-return valve that uses a clamp-type structure to fit between two pipeline flanges. It operates automatically using the pressure difference of the flowing medium — the valve disc opens when forward flow pressure is applied and closes immediately when backflow or pressure drop is detected, preventing reverse flow without any external actuation.
Q
What standard does this wafer check valve comply with?
This wafer check valve is manufactured in compliance with the BS5153 standard, ensuring consistent quality, dimensional accuracy, and reliable performance across industrial pipeline applications.
Q
What is the operating temperature range of this valve?
The valve is designed to operate within a temperature range of -20°C to 120°C, making it suitable for a wide variety of industrial media including water, sewage, petroleum products, and chemical fluids within this thermal range.
Q
What industries are wafer check valves commonly used in?
Wafer check valves are widely applied across multiple industries including water supply and distribution, sewage treatment, fire protection systems, petroleum refining, chemical processing, power generation, and metallurgy. Their compact design makes them especially suitable for installations where space is limited.
Q
What sealing materials are used in this wafer check valve?
The valve seats are typically made from elastic materials such as nitrile rubber (NBR) or fluororubber (FKM), or alternatively feature a metal hard sealing structure. Some models incorporate a dual seal design to meet diverse media requirements, achieving zero leakage performance in both low-pressure and high-pressure applications.
Q
How is the wafer check valve packaged for export?
All wafer check valves are packaged in standard export wooden cases, designed to protect the products during international shipping and handling. This packaging ensures the valves arrive in perfect condition and meet standard export requirements for global customers.