Stainless Steel Sintered Filter Disc made of 316 stainless steel.

Product Description

Stainless Steel Sintered Filter Disc made of 316 stainless steel can be customized to meet your needs.

Superior Sintered Disc Filter – 316 Stainless Steel Construction: Designed for rigorous industrial filtration, this sintered disc filter combines multiple layers of 316L stainless steel mesh, diffusion-bonded through high-temperature vacuum sintering. The result is a monolithic, all-metal structure with exceptional mechanical strength, corrosion resistance, and thermal stability. Unlike conventional wire mesh or pleated filters, our sintered disc eliminates media migration, fiber shedding, and seam failure, ensuring absolute particle retention and product purity for critical applications.
Precise Filtration Ratings with High Dirt-Holding Capacity: The sintering process creates controlled, uniform pore sizes ranging from 2µm to 200µm, allowing you to select the exact micron rating required for your process. The three-dimensional tortuous pore channel traps contaminants both on the surface and within the depth of the media, delivering significantly higher dirt-holding capacity than surface-type filters. This translates to extended service intervals, reduced replacement frequency, and lower total cost of ownership for your filtration system.

Specifications

Product Name	Sintered sheet filter made of 316 stainless steel
Material	Stainless Steel 316
Filter Precision	1 -- 300μm
Working Temperature	-200 -- 650℃
Porosity	35% -- 50%
Pressure Resistance	Up to 30 MPa
Corrosion Resistance	PH 0-14
Working Media	Air / Water / Oil / Viscous Liquid / Chemical Liquid
Connection	Standard Thread / Flange / Quick Connection / Tie Rod Connection / Custom

Filter Structure

Stainless Steel Sintered Mesh Filter, also called Metal Mesh Sintered Filter, Alloy Mesh Filter, Sintered Layer Filter, along with porous powder sintered filter element, fiberglass sintered filter element, and PP/PE sintered filter element, all belong to the broad category of sintered filter elements.

The sintering mesh filter usually has five layers of stainless steel woven wire mesh, including one protective layer, one filter layer, one separating layer, and two supporting layers. Can also add a skeleton layer according to the conditions sometimes.

Here are the functions of each layer.

Protective Layer--80~100μm

With a high mesh density, its main function is to intercept large particulate impurities, preventing them from entering the next filter structure, serve as the preliminary filtration and protection.

Separating Layer--40~60μm

Pre-filtering the medium-sized particles, separating the fluid, prevents localized clogging. It can adjust the flow rate of the filter media to reduce the filter pressure on the main filter layer, and extend the sintered mesh filter's service life.

Filter Layer--2~20μm

With a uniform pore size distribution, it is used to control the filtration precision, ensuring stable filtration from 1 to 300 microns, serve as the main filtration function.

Supporting Layer--200~300μm

High-strength coarse metal wire mesh, provides mechanical strength, increases the pressure corrosion and stability of the sintered mesh filter element. To prevent the deforming or cracking of the main filter layer under high pressure.

Skeleton Layer--thickness 1~2mm

High thickness metal plate, espacially suitable for the high pressure working condition. Withstand the system pressure shocks, to prevent interlayer misalignment and
ensure the sinter filter' shape stability, serve as a whole supporting function in the sintered mesh filter cartridge.

Special Features of 316 Sintered Steel Filter Disc

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Cleaning Methods of Sintered Mesh Filter

The stainless steel sintered filter elements require standardized cleaning and proper daily maintenance during regular use to extend their service life.

Physical Methods

► Backwashing--Use clean water or compressed air to flush out impurities from the pores and surface of the filter element by introducing it from the outlet end in the opposite direction. Suitable for removing surface particles, sediment, and dust-like impurities. The pressure is at a range of 0.3 - 0.6MPa, the flow rate should be large enough to produce a strong flushing effect, but not so large as to damage the filter element.

► Ultrasonic Cleaning--Place the filter element into an ultrasonic cleaning tank filled with cleaning solution. The high-frequency vibrations of the ultrasound will dislodge impurities from the surface and interior of the filter element. The ultrasonic frequency is typically between 20 and 80 kHz, and the cleaning time is generally 15 to 30 minutes. This method is suitable for cleaning fine particles, oil sludge, and gelatinous impurities from micropores.

► Mechanical Brushing--For filter elements with stubborn stains or large particulate impurities on their surface, you can gently brush the surface of the filter element with a soft brush after backwashing or ultrasonic cleaning. However, be careful not to apply too much force when brushing, as this may damage the filter element's mesh structure.

Chemical Methods

► Acid Cleaning--When the filter element surface contains metal oxides or scale-like impurities such as calcium and magnesium, acid cleaning can be used. Commonly used acid cleaning agents include hydrochloric acid, nitric acid, and citric acid. The acid is prepared into a solution of a certain concentration, and the filter element is immersed in the acid cleaning solution for a period of time, and then rinsed thoroughly with clean water.

► Alkaline cleaning--When the filter element is contaminated with oil or organic matter, alkaline cleaning is an effective cleaning method. Alkaline solutions such as sodium hydroxide or sodium carbonate can be used, typically at a concentration of 5% to 15%. The filter element is immersed in the alkaline solution and heated appropriately for 1 to 3 hours, and then rinsed with clean water until neutral.

► Surfactant cleaning--For organic contamination, cleaning can be combined with the use of surfactants or enzymes (high concentrations of citric acid can be used in the food and beverage industry).

High-temperature Roasting

When organic matter is severely carbonized, the residue can be removed by high-temperature baking. This method is suitable for high-temperature operating conditions and high-temperature-resistant filter elements. The baking temperature is generally ≤450℃, followed by a period of heat preservation and then natural cooling. It should be noted that not all sintered mesh filter elements are suitable for this method; the suitability depends on the material.

Our Advantages

Exceptional Chemical and Thermal Resistance: Fabricated entirely from 316 stainless steel, this sintered disc filter withstands aggressive fluids including acids, alkalis, solvents, hydrocarbons, and high-purity water. Operating temperature ranges from cryogenic conditions up to 600°C (1112°F) in oxidizing atmospheres, and even higher in reducing environments. For applications involving steam sterilization, autoclaving, or hot gas filtration, the all-metal construction eliminates swelling, leaching, or degradation issues common with polymeric membranes. This reliability ensures consistent product quality and regulatory compliance.

Engineered for High Differential Pressure and Reverse Flow: Unlike fragile ceramic or plastic filters, the sintered metal disc handles pressure differentials up to 30 bar (435 psi) in either direction. This bi-directional strength allows aggressive backwashing or pulse-jet cleaning, maintaining low pressure drop throughout the duty cycle. Buyers concerned about filter blinding or frequent clogging will appreciate the rugged design that withstands repeated mechanical and thermal shocks. Our quality assurance includes bubble-point testing, tensile verification, and pore size uniformity checks on every batch.

Cost-Effective Wholesale Solution for Global Distributors and OEMs: We offer competitive pricing for volume orders while maintaining full traceability to 316L material certifications. Each sintered disc filter is laser-marked with the lot number and micron rating for quality audits. Whether you supply replacement parts for machinery manufacturers, stock consumables for maintenance, repair, and operations (MRO), or integrate into custom filter housings, this product delivers consistent performance and long service life. Backed by technical datasheets, CAD drawings, and application engineering support, we help you win repeat business from end users who demand zero-defect filtration. Choose our sintered disc filter – where precision engineering meets industrial durability.

Quick-Open Clamp Connection for Rapid Maintenance: Engineered with a 64mm tri-clamp or quick-open clamp fitting, this sintered disc filter enables tool-free installation and removal. In food, pharmaceutical, and chemical processing, downtime directly impacts profitability. The clamp design allows operators to disassemble, clean, or replace the disc element in minutes, not hours. Reverse flushing or ultrasonic cleaning is highly effective, restoring the filter to near-original efficiency and maximizing reusable lifecycle value for filter buyers. Diameter 51mm – Compact Integration for Space-Constrained Systems: With an outer diameter of exactly 51mm, this sintered disc fits seamlessly into existing filter housings, sanitary cartridges, and laboratory test rigs. Its compact footprint does not compromise active filtration area, thanks to optimized pleating or multi-layer disc stacking options. Plant engineers can upgrade from disposable cartridges to this reusable, high-performance disc without modifying existing piping or clamp adapters, simplifying procurement and inventory management.

Company Description

HeNan Xinxiang TOPEP Filter Co., Ltd., is a professional filter manufacturer integrating R&D, production, and sales. Located in the Advanced Manufacturing Development Zone of Xinxiang City, Henan Province, the company boasts a 26,000-square-meter modern production base, a complete production system, and independent R&D capabilities.
The company's products cover a range of products, including hydraulic oil filtration, metal sintering, air dust removal, and water treatment. They are widely used in energy and various basic industrial fields and are exported to Europe, America, the Middle East, Southeast Asia, and Africa. The company has served more than 7,000 customers worldwide.
Our company has always adhered to technology as its core and quality as its foundation, continuously improving its manufacturing capabilities and service levels, and is committed to building a filter brand with international competitiveness. While creating corporate value, it actively promotes local economic development and social employment.