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A witches hat strainer is a temporary pipeline filter shaped like a cone, designed to trap solid particles such as weld slag, rust, and debris during system startup.
Key Features:
• Conical shape for efficient flow distribution
• High dirt-holding capacity
• Low pressure drop
• Easy installation and removal
How Does a Cone Strainer Work
The working principle is simple but highly effective:
• Fluid enters the pipeline
• Flow passes through the cone-shaped filter
• Solid particles are trapped inside or on the surface
• Clean fluid continues downstream
Engineering Insight:
The conical geometry increases filtration surface area
Reduces turbulence and pressure loss
Improves debris retention during high-flow startup conditions
Types of Witches Hat Strainers
1. Wire Mesh Cone Strainer
Fine filtration (20–200 mesh)
Ideal for small particles
2. Perforated Cone Strainer
Larger holes (1mm–10mm)
Used for coarse filtration
3. Hybrid Type (Mesh + Perforated)
Combines strength and precision
Most commonly used in industrial pipelines
Applications Across Industries
Witches hat strainers are widely used in:
• Oil & Gas
• Pipeline commissioning
• Refinery startup
• Water Treatment
• Pre-filtration systems
• Pump protection
• Chemical Industry
• Process fluid filtration
• Equipment protection
• Industrial Systems
• Heat exchangers
• Valves & pumps
Witches hat strainers are essential components in industrial filtration systems, especially during startup and commissioning phases. With their simple design, high efficiency, and cost-effectiveness, they provide reliable protection for pipelines and critical equipment.
For optimized performance, selecting the right type, material, and installation method is crucial.
Contact us to obtain custom-designed cone strainers.
Email: sales@yubofilter.com
WhatsApp: 86 136 5328 5589
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