Low-Splash Filling Valve Assembly With Two-Stage Shutoff
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Solution Overview
Problem
Conventional fluid shutoff valves in high-speed container filling systems often cause fluid to splash back, leading to waste, contamination, and the need for larger containers with excess head space, resulting in increased material costs and inefficient filling.
Innovation Solution
A low splash fluid shutoff valve assembly featuring a piston-type valve configuration with a reservoir region and a second valve oriented perpendicular to the fluid flow path, which closes after the first valve to reduce pressure and prevent fluid exit, minimizing splash-back.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional pumps and valves are used in high-speed filling systems, then filling speed can be maintained, but fluid splash-back occurs causing waste and contamination
Solution Approach 1:
The filling system is divided into multiple independent valve components (first valve and second valve) positioned at different locations in the fluid path. This segmentation allows each valve to perform a specific function: the first valve controls main fluid flow while the second valve precisely controls fluid discharge, enabling high-speed filling without splash-back waste
Solution Approach 2:
The first valve closes before the second valve in a coordinated sequence. This preliminary action of the first valve stopping main fluid supply before the second valve closes completely prevents pressure surge and fluid splash-back, eliminating waste while maintaining filling speed
2Productivity
If conventional valves are used to shut off fluid flow, then filling can be completed, but fluid pressure surge causes splash-back out of the container
Solution Approach 1:
The fluid shut-off function is segmented into two valves: the first valve shuts off main fluid supply from the pump, and the second valve (positioned at the container opening) precisely controls the final fluid discharge. This segmentation eliminates pressure surge by distributing the shut-off action across two stages, preventing splash-back
Solution Approach 2:
The first valve performs a preliminary shut-off action before the second valve completes the fluid discharge. This preliminary closure of the main supply valve prevents pressure buildup that would cause splash-back, while the second valve continues to allow controlled fluid flow into the container
3Object-affected harmful factors
If head space is added to containers to prevent splash-back exit, then contamination is reduced, but container volume increases wasting material
Solution Approach 1:
The invention converts the potential harm of fluid pressure surge into a benefit by using a coordinated two-valve closure sequence. The first valve closes to stop main supply, creating a pressure relief effect that prevents splash-back, while the second valve completes the controlled discharge. This eliminates the need for excess head space, allowing containers to be sized precisely to fluid volume, reducing material waste
4Object-affected harmful factors
If head space is increased in containers, then splash-back containment is improved, but filling accuracy appears reduced
Solution Approach 1:
The first valve performs a preliminary closure action that stops main fluid supply before the container is completely filled. This preliminary action prevents pressure surge and splash-back, while the second valve continues to allow precise controlled discharge. The result is both splash-back containment and accurate filling without needing excess head space
Data Source
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AI summary
A low splash fluid shutoff valve assembly that can be used with systems that fill containers with fluids and methods of reducing fluid splash-back in filling operations.