Reversible Check Stop Valve Assembly for Back-to-Back Plumbing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pressure balance valves require complex installations with back-to-back configurations due to the need for reversing hot and cold water connections, leading to increased plumbing complexity and inefficiency.
Innovation Solution
A valve assembly with interchangeable hot and cold side check stops, allowing for proper hot/cold water connections in any orientation without additional plumbing, featuring a valve body with distinct check stop receiving areas and internal passages that enable fluid communication regardless of inlet configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pressure balance valves are installed in back-to-back configurations, then proper hot/cold water mixing can be achieved, but installation complexity increases due to the need to reverse hot and cold water connections
Solution Approach 1:
The valve body is designed with symmetric inlet passages and interchangeable check stops that can be configured for either hot or cold water flow. This universal design allows the same valve body to function correctly in back-to-back installations without requiring different valve types or complex reverse plumbing, as the check stops can be swapped to accommodate either configuration.
Solution Approach 2:
The valve is divided into separable components: the valve body and the check stops. The check stops are removable and interchangeable, allowing independent configuration of hot and cold water pathways. This segmentation enables simple reconfiguration by swapping components rather than redesigning the entire valve or plumbing system.
2Reliability
If additional plumbing is added to accommodate reversed connections, then proper hot/cold water connections can be achieved, but device complexity and installation time increase
Solution Approach 1:
Instead of requiring plumbers to reverse the plumbing connections to match the valve, the valve's check stops are inverted/swapped to match the existing plumbing configuration. This reverses the problem-solving approach: rather than changing the plumbing to fit the valve, the valve components are changed to fit the plumbing, eliminating the need for additional reverse connections.
3Adaptability or versatility
If check stops are made interchangeable between hot and cold sides, then installation flexibility improves, but manufacturing precision requirements increase
Solution Approach 1:
While the overall valve body is symmetric, the check stops themselves have asymmetric internal features (such as different passage lengths or flow characteristics) that allow them to be differentiated and correctly positioned. This controlled asymmetry within symmetric components provides manufacturing precision cues while maintaining installation flexibility, as the asymmetric features guide proper orientation during assembly.
Data Source
AI summary
Disclosed herein is a valve assembly. The valve assembly includes a valve body, a cartridge, a hot side check stop, and a cold side check stop. The valve body has a cartridge receiving area, a first check stop receiving area, and a second check stop receiving area. The cartridge is located in the cartridge receiving area. The hot side check stop is located in the first check stop receiving area when the valve assembly is in a first configuration. The cold side check stop is located in the second check stop receiving area when the valve assembly is in the first configuration. When the valve assembly is in a second configuration, the hot side check stop is located in the second check stop receiving area and the cold side check stop is located in the first check stop receiving area.