| Customization: | Available |
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| Media: | Fluid |
| Material: | Stainless Steel |
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Structure & Working Principle
1. Core Components
The foot valve consists of a valve body, valve disc, valve cover, bushing, sealing ring, and other parts. When fluid pressure acts on the disc, the valve opens to allow liquid inflow. When the pump stops, pressure from the outlet side forces the disc to close instantly, preventing backflow.
2. Design Features
- Anti-Clogging Design: Multiple inlet ports and reinforced ribs on the valve cover minimize blockage risks in media containing minor impurities.
- Connection Types: Supports threaded (screwed) and flanged connections for diverse pipeline requirements.
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Applications
- Pump Systems: Installed at the bottom of suction pipes to maintain primed pipelines and prevent dry running.
- Industrial Pipelines: Used in water treatment, oil transportation, etc. Horizontal pipelines require vertical lift structures (recommended for DN50+).
- Special Media: Corrosion-resistant models handle weak acids/alkalis; avoid high-viscosity or solid-laden fluids.
Installation & Maintenance
1. Installation Guidelines
- Must be vertically installed to ensure proper disc operation.
- Prime the suction pipe before initial startup to create a vacuum.
- Clean sealing surfaces and seal pipeline ends during long-term storage.
2. Maintenance Tips
- Regularly lubricate the valve stem; avoid forced operation with levers.
- Replace worn sealing rings promptly; some models allow quick maintenance access.
| Nominal Pressure (PN) | PN0.25MPa (standard), up to 2.5MPa for specific models. |
| Nominal Diameter (DN) | DN15-DN100 |
| Applicable Media | Water, oil, non-corrosive liquids; some models support sewage, steam, etc. |
| Temperature Range | ≤50°C (standard); special models: -40~350°C |
| Body Material | Stainless steel (304, 316, 316L), carbon steel |
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