When searching for compact inline filtration solutions, many engineers encounter the term "Witches Hat Strainer."
A witches hat strainer is a cone-shaped filtration device used to remove solid particles from liquid pipelines, pump suctions, and vessel outlets. Its conical geometry increases filtration area while maintaining low pressure drop, making it ideal for equipment protection in industrial systems.
At YUBO Filter, we manufacture precision stainless steel witches hat strainers designed for high-flow and demanding industrial environments.
A witches hat strainer is a conical metal filter element installed inside pipelines or vessels to capture solid particles and protect downstream equipment such as pumps, valves, and heat exchangers. It is commonly made from stainless steel mesh or a perforated plate.
Click here to learn about: Witches Hat Strainer Flow Direction
The name comes from its distinctive cone shape, which resembles a traditional pointed witch's hat.
In engineering drawings, it may also be referred to as:
• Cone strainer
• Pump suction cone screen
• Stainless steel cone filter
The operating principle is simple and highly reliable:
• Liquid flows through the conical screen.
• Solid particles are retained on the outer surface.
• Clean fluid passes through the filtration openings.
• Collected debris is removed during maintenance or backflushing.
Because of its angled surface, debris distributes more evenly than on flat screens, reducing clogging risk and extending service life.
At YUBO Filter, witches hat strainers are available in:
✔ Stainless Steel Wire Mesh Cone
• Fine filtration
• Cost-effective
• Suitable for general liquid filtration
✔ Perforated Plate Cone
• Higher mechanical strength
• Larger particle retention
• Heavy-duty industrial use
• Large filtration area in compact space
• Low pressure drop
• High dirt-holding capacity
• Reusable and cleanable
• Custom slot size or mesh opening
• Corrosion-resistant stainless steel construction
• Stainless Steel 304
• Stainless Steel 316, 316L
• Duplex Stainless Steel
• Custom alloys for corrosive environments
Material selection depends on fluid chemistry, temperature, and pressure requirements.
Witches hat strainers are widely used in:
• Pump suction protection
• Chemical processing systems
• Water and wastewater treatment
• Oil & gas pipelines
• Heat exchanger protection
• Ion exchange resin retention systems
In water treatment plants, they are often installed as a safety barrier to prevent media loss and protect downstream equipment.
| Feature | Witches Hat Strainer | Basket Strainer |
|---|---|---|
| Shape | Conical | Cylindrical |
| Installation | Inline / internal | Housing-based |
| Space Requirement | Compact | Larger |
| Pressure Drop | Lower | Moderate |
| Maintenance | Simple removal | Housing disassembly |
For systems with limited installation space and lower pressure tolerance, cone strainers offer a more efficient solution.
YUBO Filter specializes in precision stainless steel filtration components for global industrial markets.
Our advantages include:
• Precision welding and slot control
• Custom diameter and height options
• Stable lead time for international supply
• Experience in water treatment and industrial filtration sectors
• Engineering support for slot size selection
Each witches hat strainer is manufactured under strict quality control to ensure mechanical strength, dimensional accuracy, and long-term durability.
Frequently Asked Questions
1. What is the typical filtration size?
It depends on the application. Mesh openings can range from coarse perforations to fine filtration below 100 microns.
2. Is it reusable?
Yes. Most stainless steel cone strainers can be cleaned and reused multiple times.
3. Can it handle high pressure?
Heavy-duty versions using a perforated plate are suitable for higher-pressure systems.
A witches hat strainer is a compact, conical filtration device designed to protect industrial systems from solid contamination. Its low pressure drop, high strength, and customizable design make it a reliable solution for pump protection and pipeline filtration.
For engineered cone strainers tailored to your system requirements, contact YUBO Filter for technical consultation and manufacturing support.
