Rotatable Outlet Housing for Relief Valve Directional Control
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Solution Overview
Problem
Conventional pressure relief valves require labor-intensive adjustments and compromise seal integrity when trying to align the outlet direction, especially with SAE thread connections, leading to increased installation costs and cumbersome plumbing installations.
Innovation Solution
A relief valve design featuring a rotatable outlet housing separate from the body, allowing for 360-degree rotation and alignment without compromising the seal, with the outlet housing held in place by retaining rings or o-rings, enabling directional control of the outlet without affecting the inlet installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If NPT threads are used on relief valve inlet connections to enable outlet direction adjustment, then the outlet can be aligned with the piping system, but labor-intensive adjustments and potential seal integrity compromise occur
Solution Approach 1:
The relief valve is divided into two separate connectable components: a body portion with inlet connection and an outlet housing with outlet connection. This segmentation allows each component to be optimized independently - the body can use SAE threads for simple, secure inlet connection while the outlet housing provides directional control, eliminating the need for labor-intensive joint adjustments.
Solution Approach 2:
The outlet housing is extracted as a separate rotatable component from the main body. This extraction allows the outlet direction to be adjusted independently without affecting the inlet connection or requiring loosening and retightening of fitting joints, thus reducing installation labor while maintaining adaptability.
2Ease of operation
If SAE threads are used on relief valve inlet connections for simple installation, then installation is simplified, but outlet direction adjustment compromises seal integrity
Solution Approach 1:
By segmenting the valve into a body with SAE threaded inlet connection and a separate rotatable outlet housing, the design maintains installation simplicity while enabling outlet direction control. The SAE connection remains undisturbed during outlet alignment, preserving seal integrity.
Solution Approach 2:
The outlet housing is designed to be rotatable relative to the body, providing dynamic directional control. This rotational capability allows the outlet to be oriented in any desired direction after installation without compromising the fixed SAE inlet connection or its seal.
3Adaptability or versatility
If the outlet housing is made rotatable to enable directional control, then outlet alignment is improved, but device complexity increases
Solution Approach 1:
The segmentation into body and outlet housing components actually reduces overall system complexity by allowing standardized, pre-manufactured parts to be combined. The rotatable outlet housing can be a simple cylindrical component with sealing elements, avoiding the need for complex adjustable mechanisms within a monolithic structure.
Data Source
AI summary
A relief valve including a body defining an inlet. A valve closure element is disposed at least partially within the body and arranged to allow selective flow through the relief valve in response to a predetermined pressure. An outlet housing that is separate from and coupled to the inlet housing is rotatable with respect to the inlet housing. The outlet housing defines an outlet that is in selective communication with the inlet.