Check Valve With Integrated Test Channel
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional check valves are difficult to test for proper operation without causing significant disruption or waste, as existing methods often require inducing reverse flow or removing the valve from the piping system, which is impractical and inefficient.
Innovation Solution
An exercisable check valve with a piston assembly and a test fluid delivery channel allows for verification of proper operation by applying pressure to the test fluid channel, moving the piston to drive the valve closure member and engage the valve body, thus interrupting flow without removing the valve from the system and minimizing reverse flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional testing methods are used (inducing reverse flow or removing valve), then proper operation can be verified, but significant production disruption and waste are caused
Solution Approach 1:
A test fluid delivery channel is introduced as an intermediary component that allows test fluid to be delivered directly to the valve closure member without requiring reverse flow through the entire piping system. This mediator enables isolated testing of the check valve while the rest of the system continues normal operation, resolving the contradiction between verification reliability and production continuity
Solution Approach 2:
The testing function is segmented from the main fluid flow path. The test fluid delivery channel creates a separate, isolated testing pathway that allows the check valve to be tested independently without affecting the main production flow. This segmentation enables simultaneous operation of production and testing functions
2Reliability
If the valve is removed from the piping system for testing, then proper operation can be verified, but significant time and production loss occur
Solution Approach 1:
The check valve performs self-testing through the test fluid delivery channel that allows the valve closure member to be actuated and tested in-place without removal. The valve serves both its primary flow control function and its own testing function through the integrated test channel, eliminating the need for separate removal and installation operations
3Reliability
If reverse flow is induced through the piping system to test the valve, then proper operation can be verified, but significant waste and cleanup are required
Solution Approach 1:
The testing function is extracted from the main production fluid flow. Instead of inducing reverse flow through the entire piping system using production fluid, a separate test fluid is delivered through the dedicated test fluid delivery channel solely for testing purposes. This extraction allows testing to be performed with minimal or no production fluid waste
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
Enables quick and efficient testing of check valve operation within the piping system without significant cleanup or production halt, ensuring compliance with regulatory requirements and maintaining safe operating conditions.
Implementation Method 1
a biasing element that causes the check valve to be normally biased open
Implementation Method 2
a user applies a source of pressure to the test fluid delivery channel. Application of pressure will cause the piston to move relative to the piston bore, driving the valve closure member
Data Source
AI summary
An exercisable check valve having a fluid delivery test channel and piston closure is disclosed herein. A valve closure member stops flow through the valve in the presence of backwards pressure or when engaged by the piston. The valve may be tested by applying a pressure source to the fluid delivery test channel to cause the piston to engage the valve closure member and stop flow through the valve. A test rod may then be inserted into a test rod port to ensure the valve closure member is in the proper closed position. The check valve may also include a biasing element to bias the valve closure member to an open position and a drainage channel. The check valve may be used in any piping or valve system.