The swing check valve is a critical valve type widely used in fluid systems to prevent backflow and ensure normal operation. Its working principle and installation methods are key considerations for users.
I. Working Principle
The valve operates via fluid pressure and disc weight:
Forward Flow: Fluid pressure lifts the disc, opening the valve.
Reverse Flow: The disc closes under gravity or spring force, blocking backflow.
This self-sealing mechanism enhances system safety.
II. Structure
Key components:
Body & Cover: Houses internal components.
Disc: A circular plate connected to a swing arm, rotating on a pivot.
Streamlined Design: Minimizes flow resistance.
Optional Sealing Aids: Some models use springs or weights to improve low-pressure sealing.
III. Installation
Flexible Positioning: Can be installed horizontally or vertically.
Vertical Installation Note: The pivot axis must remain horizontal for proper operation.
