Witches Hat Filters ＆ Witches Hat Strainer Factory
witches hat filter ＆ Witches Hat Strainer in China
Witches Hat Filters （Witches Hat Strainer）can comprise multiple layers of wire cloth to form a filter material with higher strength and stiffness. Multilayer mesh forms an ideal uniform filtration structure. Materials and structures maximize the circulation area, effectively reduce resistance, and ensure reliable operation. Hat filters can be used for softening, desalting, water filtration and water pretreatment systems, as well as less demanding industrial water supply and oil essence filtration equipment.
ProductS
Temporary Cone Strainers
Temporary cone strainers are devices used in industrial processes. They serve the purpose of filtering out solid particles.
This filtration occurs from liquids during various industrial operations. They consist of a cone-shaped mesh or perforated screen. This mesh or screen is placed in-line with a piping system. The cone shape allows for effective filtration of solid particles from the flowing liquid.
The liquid flows through the cone strainer. As it flows, the mesh or perforated screen catches any debris or particles present in the fluid stream. This prevents the solid particles from continuing downstream in the piping system.
These strainers are commonly employed in situations where a more permanent filtration system isn’t necessary. They are also utilized in processes that require occasional or temporary filtration. Their temporary nature allows for flexibility in adapting to changing filtration needs.
They are particularly useful during the commissioning of new equipment. Additionally, they are valuable during maintenance activities. These times often pose a higher likelihood of debris or contaminants in the fluid. Temporary cone strainers help prevent such debris from damaging or interfering with equipment operation during these critical periods.
2" Witches Hat
A 2″ witches hat metal filter is a specific type of filter. It’s typically used in various applications. These applications include industrial filtration, HVAC
systems, and automotive applications. The “2-inch” dimension likely refers to the diameter of the filter. “Tapered” suggests that the filter may have a conical shape. In this shape, one end is wider than the other.
The “metal” aspect indicates that the filter is constructed from metal materials. These materials can provide durability. They also offer resistance to high temperatures or corrosive environments. These filters are often used to remove contaminants or particles from fluids or air streams.
Cone Filters
Metal cone filters are filtration devices. They are typically used in various industrial applications. They are especially common in processes where there’s a need to filter out particles or
impurities. These processes involve filtering liquids or gases. These filters are constructed in a cone shape. They are made from metal. The metal used is often stainless steel or other durable alloys.
The cone shape allows for efficient filtration. It achieves this by directing the flow of the substance being filtered. This flow is directed through a progressively narrower space. As a result, particles of varying sizes are effectively trapped. Metal construction ensures durability. It also provides resistance to corrosion. These qualities make these filters suitable for demanding environments.
Metal cone filters find applications in various industries. These industries include oil and gas, chemical processing, water treatment, automotive, aerospace, and more. They are used for tasks like removing contaminants from liquids. This occurs before further processing. They also capture particles from gases to maintain air quality. Additionally, they find utility in laboratory settings for filtering various solutions.
Witches Hat Strainer
Witches hat strainer is a filtration device. It is versatile. It is used in industrial applications. It is used in automotive applications. It is used in culinary applications.
It is typically made of stainless steel. It features a cone-shaped structure. The structure has fine perforations or mesh. In industrial settings, it removes impurities from liquids or gases. It withstands high pressures.
Custom Witches Hat Filters
Creating a custom witch hat filter involves cutting a tapered cone shape from sheet metal, bending it into the shape of a hat, and smoothing out any rough edges. Materials needed include sheet metal, cutting tools, marker, safety gear, and optional decorations. After cutting and shaping the metal, trim excess material and smooth edges with sandpaper or a file.
Optionally, decorate the hat with paint or stickers. For filtration purposes, attach a fine mesh screen inside the cone. Ensure all edges are smooth and safe to handle. This DIY project offers a fun way to customize a filter for photography effects or decorative use, especially for Halloween. Take care when handling the metal to avoid injury from sharp edges.
Advantage Witches Hat Filters
- They offer an economical and efficient alternative to Y or basket strainers, particularly when witches hat strainers are utilized.
- Bear screens are manufactured using materials that are 100% traceable.
- They are cleanable and reusable, ensuring prolonged functionality.
- Demonstrating remarkable performance, especially in higher-pressure applications, due to their larger open areas.
- They are reinforced with a heavy gauge perforated plate featuring intricately punched holes, aiding in efficiently capturing debris during pipeline start-ups.
- Customization is straightforward, regardless of whether stainless wire mesh is used. Ultimately, you can filter out even the smallest particles effectively.
- They are readily available in various sizes, spanning from 8 meshes to 400 meshes.
- Their pre-filter conical screens eliminate the need to modify your existing piping structure.
- They are readily available in standard lengths for easy acquisition.
Principle of Witches Hat Filters (Witches Hat Strainer)
Once the fluid enters the filter cartridge, its impurities are obstructed, allowing only the clean fluid to flow out through the outlet. When cleaning is required, remove the witch hat filter, clean it, and reinstall it.
Witches Hat Filter / Witches Hat Strainer Types
Woven Type
Perforated Type
Single Layer -Perforated Type
Double Layers -Perforated(outer)+ Woven(inner)
Witches Hat Filter Technology Help you Know Better
Witches Hat Filter Mesh Size
witches hat filter mesh size has many sizes of filter mesh, such as DN30 inch cone filter is a metal mesh by CNC punch stamping or cut into fans, after combination, welding flange and handle, is a coarse filter element, can remove impurities in the medium, make the equipment work normally, to achieve process stability.With a complete wire mesh production line, many models, can produce a variety of specifications of cone filter screen, uniform mesh, large filtration area, small resistance, renewable (repeated), etc., widely used in oil, natural gas, water treatment and other fields.
Metal Mesh Screening Cone Filter Witch Hat filters can provide effective and economical protection for pumps, valves, instrumentation, and other expensive equipment.Filters are used during pipeline system commissioning and start-up to remove debris left in the pipeline during construction.The filter cannot replace a permanent filter and shall be removed from the pipe after commissioning.The advantages of stainless steel mesh cone filter are acid and alkali resistance, high temperature resistance, wear resistance, and strong stress resistance.
characteristic:
- The filter can withstand high temperature and pressure difference, and will not cause equipment damage due to separation.
- The expected pressure drop of the filter does not cause the downstream working pressure below the minimum pressure required for the pipeline.
- Because the hole eye of the filter is slightly smaller than the minimum debris expected to flow through it, it can effectively block impurities.
- The size of the perforation is a normal specification, so it does not cause the filter to produce a high pressure drop and cause its failure.
- It can be made of single-layer or multi-layer and multi-mesh filters according to customer requirements.
- The widest range is from 20 to 500 orders, with a maximum of 2 microns.
- Different materials available: stainless steel and non-ferrous metals, such as phosphorus bronze.
- Super strong and strong, with excellent mechanical strength.
- Higher chemical resistance and thermal stability for excellent durability.
witches hat filter mesh size specifications | |
Material | Metal, SS 304,SS 304L,SS316,SS 316L |
Width | 25-1000mm |
Length | 10mm-10m |
perforated metal hole diameter | 1.5-6.0mm |
Witches Hat Filter Design
To make a witch’s hat filter, the perforated sheet is rolled up to form a cone, and additional layers of wire mesh are spot-welded to the cone filter, which is called a witch’s hat filter because it looks like a witch’s hat and prevents foreign objects in the pipe from getting into water, oil or gas.
The filters have rubber washers inside and are designed to be installed into type B, C, and D female joints. Their primary purpose is to protect the suction pump from debris. It is integrated with the gasket for tight sealing and quick installation.
Standard and countercurrent designs are available, mounted primarily between two pipe flanges and available in a variety of sizes and configurations. Punch filters, mesh filters and even special cones with anti-vibration rings are available on request.
Witches Hat Filter Installation
There are two different ways to install starter filters, they can be installed with cones facing upstream or cones facing downstream.
- The cone points downstream
In this direction, the debris is captured at the tip of the filter. Because the tip of the cone points downstream, the flow rate near the pipe wall is lower, and the velocity in the center of the pipe is higher, debris accumulates in the tip, where the tip is under a lot of pressure, potentially tearing the cone apart with too much pressure.
The reason for pointing the prongs downstream is that this direction is easy to remove debris as it is swept in the filter. If this direction is required, ensure that the filter is hardened to ensure its mechanical stability.
- The cone points upstream:
With the tip pointing upstream, the debris will be swept to the side of the filter. The outside-in flow pattern is an advantage because any clogging of the filter will start on the outside and work its way in.
Witches Hat Filter Pressure Drop
Basket or truncated cone filters have a larger volume and surface area than cone filters of the same length, providing a comparable operating pressure drop.
Because the pressure drop is the pressure difference between two points, the pressure is generated because of the flow resistance, so pipe elbows, reducing pipes, valves, etc., will cause the pressure drop. High viscosity media or high flow rates may also cause pressure drops. So when determining the size of the pump, pressure drop is an important consideration.
Over time, the filter element will become clogged with debris. This will result in a higher pressure drop. The filter element must be cleaned regularly to unclog the filter and prevent filter damage.
The frequency of filter maintenance is related to the open area, and filters with larger open areas (such as basket filters) require less cleaning frequency than Y-type filters.
Witches Hat Filter Selection Guide
Witches hat filter (Witch Hat Strainer) are perforated devices with woven mesh primarily used to capture particles in pipes and come in different types and names including cone filters, plate filters and temporary basket filters.
In terms of size, tapered filters can capture particles as small as 0.01 inch or 25 microns in diameter. However, the size of the filter mesh must be smaller than the size of the particles, so that the particles can be effectively trapped.
In terms of pressure drop, the screen can be welded to the entire circumference of the flange ring, with a slight pressure drop, which can provide high strength.
For the open area of the filter, the cross section range of the pipeline is from 100% to 300% as the standard, so it has a wide filter area, and also has a good filtering effect.
For the filter material thickness, its specification range needs to be between 22 and 11, depending on the size of the hole.
Witches Hat Filter Definition
Witches hat filter Definitions, often referred to as temporary filters, are usually composed of wire mesh of different materials and apertures, depending on the processing needs of the facility, and can also be made in a variety of sizes to provide better filtration.
Designed for initial start-up, it is usually a temporary device inserted into a fluid production line and can be easily replaced in the pipeline. Filters and protects the passage of particulate matter in the treatment system for pumps, valves, meters, and other mechanical parts that may be affected.
The filter is an economical and efficient way to start the temporary strain of the application. It can not only save a lot of economic costs, but also improve the work efficiency. It has a high use value and should not be used as a permanent filter solution to replace the Y-filter, basket filter, three-way filter or double basket filter.
Witches Hat Filter Flow (Witches Hat Strainer)Direction
Witches hat strainer has a tip that can be installed downstream (with flow) or upstream (for flow), so the fluid can flow in two different directions.
Witch’s hat filters belong to the pipeline coarse filter series, generally used to remove impurities in the pipeline, so that the pipeline can work and run properly, while the cone filter works on the principle that fluid enters the cone filter, then impurities are blocked, and finally clean fluid flows out of the outlet.
When the tip of the filter points downstream, debris will follow the fluid in the direction of the tip, so the debris will accumulate at the tip, and the pressure on the tip will increase, which may cause the tip to break due to the increased pressure. If the tip of the filter points upstream, debris will accumulate near the pipe wall at the bottom of the filter as the fluid flows downstream. Particles tend to collect inward from the outer part of the pipe. This direction is better for higher flow rates.
Why ZD Filtration to customize your Witches Hat Filter
DEZE filtration custom witches hat filters provide exceptional filtration efficiency through their tapered metal design, ensuring gradual pore size reduction from base to tip. This design optimizes particle capture while maintaining a high flow rate, minimizing pressure drop for efficient system operation.
These filters offer customizable options. Options include material, pore size, and dimensions. They can be adapted to diverse industrial applications. Constructed from durable materials, they offer longevity. They are resistant to corrosion. This reduces maintenance costs and downtime. Their versatility extends across industries.
Industries include chemical processing, oil and gas, food and beverage, and pharmaceuticals. They can accommodate various fluid types. Easy installation and maintenance procedures are in place. They facilitate quick replacements or cleanings. This ensures uninterrupted filtration performance.
Manufactured to the highest standards, DEZE filters deliver consistent results batch after batch, maintaining product quality and process efficiency. In summary, DEZE Witches Hat Strainer combines superior filtration performance, customization flexibility, durability, and ease of maintenance, making them a reliable choice for industrial filtration needs.
DEZE Custom Witches Hat Strainer For Applications
Filtration of crude oil to remove impurities, water, and solids before refining processes. Filtration of natural gas is performed. The purpose is to remove contaminants. This ensures compliance with quality standards. Removal of particulates and sediments from hydraulic fluids and lubricants used in machinery.
Filtering of beverages such as wine, beer, and spirits occurs. The purpose is to remove sediments, particles, or unwanted impurities. Clarification of fruit juices and syrups. Filtration of cooking oils to remove debris and extend their shelf life.
Filtration of chemical solutions to remove particulates, catalysts, or contaminants. Purification of solvents and reagents used in chemical synthesis processes. Filtration of paints, coatings, and varnishes to ensure smooth application and finish.
Pre-filtration of wastewater occurs. The purpose is to remove large particles, debris, and suspended solids. This is done before further treatment processes. Filtration of industrial wastewater is conducted. The goal is to meet regulatory standards. This minimizes environmental impact. Clarification of effluent streams in sewage treatment plants.
FAQ
Most frequent questions and answers
Witches hat Strainers for oil and gas applications are also called temporary filters, designed for use during commissioning or start-up. They protect the control devices in the system from dirt, debris, and any other foreign objects that may pass through the new system.
Filters are added to the new system at installation and removed after the system is cleaned. When installed, the witches Hat filters are located between the mating flanges of the pipe for easy installation. If you are adding a debug filter to a vertically mounted meter, we recommend adding a filter to both the inlet and outlet.
Conical filters are designed to capture debris and other solids after a new pipe installation is started, although in some cases the filter may remain permanently in the line. Basket filters or truncated cone filters have flat ends rather than pointed points and can provide the same percentage of open area over a shorter length.
Witches hat filters are devices that mechanically remove unwanted solids from liquid, gas or steam pipelines by means of perforated or wire mesh filtering elements. They are used in piping to protect pumps, meters, control valves, steam traps, regulators, and other process equipment.
Witch hat filters are a very cost effective filtering solution in many applications. If the amount of material to be removed from the fluid is relatively small, resulting in long intervals between screen cleanings, manually clean the screen by closing the line and removing the screen cover.
Conical filters can also be used in a variety of liquid filtration applications to protect downstream process system components in many industries, including: chemical processing, petroleum, power generation, and Marine. The use of conical filters to protect equipment that may be damaged or clogged by unwanted sand, gravel, or other debris is very common in water treatment applications.
Witch hat filter needs to be installed in the plumbing system first to remove unwanted debris from the plumbing system, and the filter cannot be changed during the system startup process.
When operating, the starting filter must be placed on the suction side, you need to ensure that the mesh lining side of the witch’s hat filter flows towards the pipe, and if there is a filter on the outlet side of the downstream valve, you need to ensure that the starting tip filter does not interfere with opening and closing disc, ball or stem.
To filter impurities from the pipe, the fluid must first pass through a perforated or reticulated lined screen, and the filter mesh size must be slightly smaller than the debris size, otherwise unwanted debris may flow out through the pipe and potentially damage downstream equipment. The final fluid through the screen is filtered clean.
- Filter can withstand a very high pressure difference. The expected pressure drop of the filter will not cause the downstream working pressure to be lower than the minimum pressure required by the pipeline, and the equipment will not be damaged due to separation.
- The hole of the filter is slightly smaller than the smallest debris expected to flow through it, thus effectively blocking impurities. And the size of the punch is normal specification, so it will not cause the filter to produce high pressure drop and lead to its failure.
- The material used is stainless steel and non-ferrous metal, with excellent mechanical strength, so that the screen can be filtered or squeezed more effectively.
- It has a large filtering area and a high filtering accuracy, so it has a high efficiency and can finish the work quickly.
- They are very low cost pipe filters designed to start new or modified pipe systems. They provide cheap protection for expensive valves, pumps, meters and other mechanical equipment.
Witches hat filters can be made from carbon steel, various grades of stainless steel, Alloy 20, Monel, titanium alloy, Super Duplex stainless Steel etc.
Witch hat filters are primarily used as temporary filters. So the main selection of raw materials are stainless steel punching plate and woven mesh. Depending on the filtration strength and filtration accuracy, the filtration structure can be from one layer to multiple layers.
They consist of 1-2 layers of mesh. And according to the strength and filtration efficiency can be used punching net, braided net, punching net + braided net three main forms. It is then fitted with a suitable flange for quick and easy installation into the responsive position.
The witch hat filter is also a cone filter. The conical structure is adopted to maximize the flow area, which can effectively reduce the resistance and improve the flow volume. So they’re usually used for high speed fluids.
A variety of materials such as stainless steel, copper-nickel alloy, duplex stainless steel, super duplex stainless steel, Monel, Hastelloy and titanium can be used for witches hat filters.
The Witch’s hat filter can be composed of multiple layers of wire cloth, with multiple layers of mesh forming an ideal uniform filtering structure. The material and structure have maximum flow area, which can effectively reduce drag and ensure reliable operation. Thus, filtration materials with higher strength and stiffness can be made.
The main purpose is to remove solids suspended in water, oil and viscous resins. They are used in softening, desalination, water filtration and water pretreatment systems, as well as in less demanding industrial water supply and oil concentrate filtration equipment.
Metal additive manufacturing can also be used, using a process in which metal powder is laid on a bed and a computer-controlled laser is used to melt and fuse the metal at the desired points.
- Is a cost-effective alternative to Y or basket filters, which is suitable if you use witch hat filters.
- Its simple structure, exclude the impurities in the medium pipeline, make the equipment work normally, play a role, realize the process stability, ensure the safety of production. The principle is that the fluid enters the filter element, its impurities are blocked, and the fluid flow outlet is clean, need to clean, just remove the conical filter element, after cleaning can be installed.
- The material and structure can maximize the flow area of the water flow, which can effectively reduce the resistance and ensure the reliability of the operation without blockage.
- Adopt 3-6mm pressed stainless steel, can withstand 150 kPa pressure, no deformation and damage, has a long service life.
- Available in a variety of sizes, from 8 mesh to 400 mesh. And their pre-filtered conical screen does not force you to modify the existing pipe structure.
Witches hat strainer can be composed of multiple layers of wire cloth to create a higher strength and stiffness filter material. Multiple mesh layers form an ideal uniform filtering structure designed to fit inside female CAM and groove couplings.
They come with pre-attached nitrile rubber washers, so you simply remove the old washer, install a new one with a filter, and get started.
The witches hat strainer has a proprietary support structure and is durable with all TIG welded construction. We design witches hat strainer solutions for existing pipeline applications that use all-welded pleated micron mesh to capture particles in high-flow applications while maintaining minimal differential pressure.
Primarily used to provide a filtration layer to remove solids suspended in water, oil, and viscous resins. In 316 stainless steel, we can make them into apertures as small as 1 micron, using a single grid or multiple grids to achieve the desired micron grade.
- Aperture
Need to consider the filter aperture problem, according to the number of holes can determine the filter effect, so that the filter is more accurate.
2.Design
Select filter materials and sizes to help you achieve better purification and filtration in your oil applications. Look for ways to speed up strain.
The size of the filter should be related to the thickness of the filter, if the filter has a thick thickness, then its size should not be too small.
- Stress level
Check the pressure level of the equipment to ensure that you get the ideal equipment and select the equipment with the best filtration capacity, and always check the mesh size so that the pressure can be reduced.
First, without being sure what the chemical is, it needs to be turned off, then the compressor is shut down and the excess gas is blown down.
Then remove the chemical line (which is connected to the pipe we need to move), close the valve that allows the gas to flow into the compressor, loosen the pipe to spin the witch’s hat, undo the witch’s hat, remove and clean it.
This is basically the fuel filter on site for these large compressors; It’s almost a giant engine that runs on natural gas that comes out of the ground. The gas and water extracted from the ground is then sold for refining, but although it is dirty and environmentally corrosive, it is a very efficient system until it is bought back and pumped back underground through compressors to push more water and oil.
The size of the witches hat strainer you need depends on something. It depends on the intended use. It also depends on the volume of the material. You’re planning to strain this material. A witches hat strainer is something. It is typically a tapered metal filter.
It is used for draining liquids or filtering solids from liquids. You’ll want to consider something. You’ll want to consider the diameter. The diameter refers to the broadest part of the filter.
If you’re using it in a specific container or vessel, measure the diameter of the opening where the strainer will be placed. If unsure, you could opt for a standard size like 6 inches or 8 inches, commonly available sizes for kitchen strainers.
However, if you’re using it in an industrial or specialized setting, you might need to consult specific guidelines or recommendations based on your machinery or equipment.
Measuring for a witch’s hat, or tapered metal filter, involves several key steps. First, measure the diameter of the widest part of the filter to determine its bottom diameter. Then, measure the height from the base to the tip to gauge the length of the taper. Consider the taper angle if a specific angle is required, using tools like a protractor or taper gauge.
Additionally, calculate any extra dimensions such as metal thickness or brim width depending on the design. Consulting with a manufacturer or supplier is advisable to ensure accuracy and to address any specific requirements. By following these steps and seeking professional guidance, you can accurately measure for a witch’s hat or tapered metal filter, ensuring it fits your needs precisely.