Dual-Disk Check Valve Assembly for Two-Inlet Backpressure Protection
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Solution Overview
Problem
Existing dual check valves often suffer from poor efficiency and increased operating costs, particularly in applications involving backpressure protection for both inlets, and lack optimal mechanical and chemical performance, especially in spraying machines.
Innovation Solution
A dual disk check valve with a T-shaped housing featuring two inlet ports and an outlet port, equipped with a valve assembly comprising a disc, spring, seat rings, and washers, allowing for secure fluid flow management and backpressure protection, capable of handling up to 70 bar pressure, and designed for easy installation in residential and commercial water supply lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dual check valve is used for backpressure protection in both inlets, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines two check valve functions into a single integrated body with two inlet ports and one outlet port. The valve assembly includes a first check valve and a second check valve that work simultaneously within the same housing, providing backpressure protection for both inlets while maintaining a compact, unified structure rather than using separate valves.
Solution Approach 2:
The valve body is segmented into distinct inlet ports and internal flow paths that allow independent operation of each check valve function. The first inlet port and second inlet port have separate valve assemblies that can operate independently, enabling reliable backpressure protection for each inlet while maintaining structural integration.
2Reliability
If a dual disk check valve is designed for high pressure handling (70 bar), then reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The valve is designed with a maximum pressure rating of 70 bar, which is a specific parameter change that defines its operational capability. The valve assembly components including discs, springs, and seat rings are configured to maintain sealing and functional integrity at this pressure level through optimized geometric parameters and material selection.
Solution Approach 2:
The valve body is constructed from composite or engineered materials that provide both the necessary mechanical strength to handle 70 bar pressure and the precision required for manufacturing. The use of materials with controlled mechanical properties allows for reliable high-pressure operation while maintaining feasible manufacturing tolerances.
3Ease of operation
If a T-shaped housing with threaded ports is used for easy installation, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The valve body incorporates universal female BSP parallel threads on all ports (two inlet ports and one outlet port), allowing the same valve design to be installed in various piping configurations without requiring custom adapters or modification. This multi-functional threading approach simplifies installation across different applications while maintaining a standardized T-shaped housing structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dual disk check valve effectively prevents backflow and ensures efficient fluid flow management across varying pressures, providing robust mechanical and chemical performance while reducing operational costs and improving user experience.
Implementation Method 1
the biasing spring force and displace the sealing member or flapper from its seated position allowing fluid to enter the valve body
Data Source
AI summary
A dual-disk check valve is disclosed. The dual-disk check valve comprises a housing having at least two inlet ports and an outlet port, at least two adapters securely affixed to both inlet ports, and a valve assembly, which is respectively disposed at each inlet port. The valve assembly at the inlet ports is configured to operate within the housing according to the fluid flow. The valve assembly comprises a disc provided with a spring, which is securely disposed against the respective two inlet ports using seat rings and washers. The disc at one inlet port is adapted for movement between an open position and a closed position, thereby preventing the fluid flow via the inlet port to the outlet port when another inlet port is opened for allowing fluid flow through it. The one inlet port is configured to automatically close when the fluid flows from another inlet port.