Removable Valve Seat Check Valve for Faster Pipeline Maintenance
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Solution Overview
Problem
Flapper check valves in harsh environments require regular maintenance due to wear, necessitating time-consuming disconnection from fluid handling components for servicing, and external components like lock levers and slam dampeners are not easily interchangeable.
Innovation Solution
A swing check valve system with a removable valve seat and a key assembly that allows for interchangeable external components, such as lock levers, lock gears, and slam dampeners, reducing wear and facilitating maintenance without disconnecting from the fluid handling system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve is regularly inspected and maintained, then the reliability is improved, but the loss of time increases due to disconnection from fluid handling components
Solution Approach 1:
The valve seat is designed as a separate, removable component that can be independently accessed and replaced without removing the entire valve from the pipeline. This segmentation allows maintenance personnel to service the wear-prone seat portion while the valve body remains installed, significantly reducing maintenance downtime while maintaining reliability.
Solution Approach 2:
The valve seat is extracted as a distinct serviceable component from the integrated valve assembly. This extraction enables the seat to be removed, inspected, and replaced independently through accessible openings in the valve body, eliminating the need to disconnect the entire valve for seat maintenance.
2Reliability
If external components like lock levers and slam dampeners are integrated with the flapper check valve, then the reliability is improved, but the adaptability decreases as these components are not easily interchangeable
Solution Approach 1:
The valve body is designed with standardized openings and mounting interfaces that can accommodate multiple types of external components (lock levers, slam dampeners, position indicators). This universal design allows different components to be interchangeably mounted on the same valve body, enabling adaptability while maintaining the protective functions provided by these external components.
Data Source
AI summary
A swing check valve includes a body and a swing assembly, the body including an inner volume having a middle portion extending between an upstream end portion and a downstream end portion and a wall that surrounds the inner volume and the swing assembly including a disc having an upstream surface that faces the upstream end portion when the disc is in a closed position and a downstream surface that faces the downstream end portion when the disc is in the closed position and a valve seat having an outer circumferential surface in contact with the wall. The body also includes a flow path extending from the upstream end portion to the downstream end portion, wherein the middle portion includes the flow path and an upper recess positioned above the flow path.