1250 Mesh Sintered Mesh Filter Element 25x85
PRODUCT DESCRIPTION
This 1250-mesh sintered mesh filter element features a precise design and high filtration accuracy, making it suitable for a variety of applications. With a diameter of only 25 mm and a length of 85 mm, this filter element is compact yet powerful. It utilizes ultra-fine 1250-mesh stainless steel wire mesh, which is fused together using a diffusion welding (sintering) process to form a robust, porous structure. This process transforms multiple layers of wire mesh into a single, integrated filter element with stable and uniform pore sizes, capable of capturing extremely fine particles while withstanding high pressure, high temperature, and mechanical stress.
This filter element is an ideal solution for protecting precision instruments, sampling lines, chemical metering systems, and microfluidic circuits, especially in applications where space is limited but purity and durability are critical. Its all-metal construction provides a durable and cleanable filtration solution that can replace disposable polymer membranes in harsh environments.
Specification
| Type | Sintered Filter Element |
| OD | 25 mm |
| Height | 85 mm |
| Filter material | Stainless steel mesh |
| Filtration rate | 1250 mesh |
| Origin | Henan,China |
| Package | Neutral carton package |
Note: The exact micron rating is determined by the wire diameter and sintering process. 1250 mesh provides a very fine filtering capability.

product features
- Exceptional Filtration Fineness: The 1250 mesh structure provides one of the finest available filtration levels for sintered wire mesh, ideal for capturing silt, fine precipitates, and other micro-particulates.
- Monolithic & Rigid Structure: The sintering process creates a solid, one-piece unit. It will not delaminate, shed fibers, or change its pore structure under pressure, vibration, or backwashing.
- Superior Chemical & Thermal Resistance: Made entirely from stainless steel, it resists corrosion, can operate at high temperatures, and is compatible with a vast range of aggressive solvents, fuels, and process fluids where plastics would fail.
- Cleanable and Reusable: Unlike disposable filters, this element can be regenerated through back-pulsing, ultrasonic cleaning, or chemical cleaning, offering a very low total cost of ownership over its long service life.
- High Strength in a Miniature Package: Despite its small 25x85mm size, the sintered construction provides remarkable mechanical strength and resistance to pressure differentials.
Types of Sintered Filter
Sintered filters are classified according to their base material and structure:
- Sintered Metal Wire Mesh (This product): Made from woven mesh layers. Combines strength, permeability, and precise pore size control. Ideal for most fluid and gas applications.
- Sintered Metal Powder: Made from metal powder particles. Forms more tortuous flow paths and is often used in fine filtration, fluidization, or diffusion applications. Includes: stainless steel powder sintered filter elements, copper powder sintered filter elements, titanium powder sintered filter elements, etc.
- Sintered Metal Fiber: Made from randomly arranged microfibers. Provides extremely high surface area and excellent depth filtration performance with high dirt-holding capacity.
- Material Types: Available in various materials such as 304 stainless steel, 316 stainless steel, and 316L stainless steel to meet specific chemical or temperature requirements.

1. Special design can achieve an effective filtration area of 100%;
2. Each component adopts a seamless fusion method, which solves many problems that originally existed in use and ensures safety;
3. The design adopts a metal folding frame, which can be reused and replaced;
4. The density of the filter material shows an increasing structure, achieving high efficiency, low resistance, and large dust capacity;
Special design can achieve an effective filtration area of 100%;
2. Each component adopts a seamless fusion method, which solves many problems that originally existed in use and ensures safety;
3. The design adopts a metal folding frame, which can be reused and replaced;
4. The density of the filter material shows an increasing structure, achieving high efficiency, low resistance, and large dust capacity;
Manufacturer of Sintered Filter
Huahang Filter specializes in the production of sintered filter elements, capable of sintering ultra-fine mesh materials such as 1250 mesh into durable and reliable filter elements according to your needs.
Our Advantages:
- Miniaturized Precision Manufacturing: We excel at producing small, high-performance filter elements, ensuring perfect control of the sintering process and maintaining the integrity of the pore structure even in compact sizes.
- Controlled Atmosphere Sintering: Our furnace technology ensures a clean, oxide-free bond between stainless steel layers, which is crucial for maintaining corrosion resistance and media integrity, especially when processing fine mesh materials.
- Quality Verification: Every batch of products undergoes rigorous testing to verify pore size integrity and ensure the filter elements meet the specified micron rating. Dimensional and material inspections are standard procedures.
- Custom Engineering Partner: We collaborate with our customers to tailor designs to their needs, such as adding threads or changing lengths, ensuring this precision component integrates perfectly into your specific equipment.
FAQ
Q1: How do I clean a sintered mesh filter?
A: For fine mesh, gentle methods are best to avoid damage. Ultrasonic cleaning in a suitable solvent is highly effective. Careful back-flushing with clean fluid is also recommended. Avoid using hard tools or high-pressure jets directly on the surface.
Q2: What is the pressure drop like for such a fine mesh?
A: The 1250 mesh has a higher initial pressure drop compared to coarser meshes due to its small pores. This is by design for fine filtration. It is crucial to size the filter for your system's flow rate to ensure the pressure drop is acceptable. Its cleanable nature helps restore low differential pressure after cleaning.
Q3: Can sintered mesh filter handle high temperatures?
A: Yes, exceptionally well. The all-metal 304/316L construction allows it to operate continuously at temperatures where plastic housings or polymer membranes would melt or degrade, often in excess of 400°C (750°F) for the element itself.
Q4: Is the filtration rating absolute or nominal?
A: Sintered mesh filters are typically rated as absolute. This means they are designed and tested to retain 100% of particles at or above the stated micron size (e.g., 10µm), providing guaranteed protection for downstream components.
Q5: Why choose sintered mesh over a disposable pleated filter?
A: Choose sintered mesh for durability, cleanability, and extreme environment resistance. It is a one-time capital investment that lasts for years. Choose a disposable pleated filter for lower initial cost in non-aggressive, high-flow applications where frequent replacement is acceptable. For fine, critical, or harsh service, sintered metal is the superior choice.
2. Acid cleaning method
Dissolve potassium dichromate or crystals in water to 60 to 80 degrees, and slowly add concentrated sulfuric acid with a concentration of 94% until sufficient. Add slowly and stir. Add up to 1200 milliliters of potassium sulfate or completely dissolve, and the solution will appear dark red in color. At this time, the rate of adding concentrated sulfuric acid can be accelerated until it is completely added. If there are still undissolved crystals after adding concentrated sulfuric acid, they can be heated until dissolved. The function of cleaning solution is to remove general pollutants, grease, and metal particle impurities on the wall of stainless steel filter cartridge, and it can effectively kill the bacteria and microorganisms that grow on the filter cartridge and damage the heat source. If the filter element has been alkaline washed before, the alkaline solution must be washed first, otherwise fatty acids will precipitate and contaminate the filter element.

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