5μm 316 Sintered Felt Filter Element

Products Description

This 5μm 316 sintered filter cartridge is an advanced filtration assembly designed for harsh applications involving high temperatures, corrosive media, and fine particulate matter. The cartridge is constructed from randomly stacked 316 sintered felt material, bonded together through a strictly controlled sintering process to create a robust, porous felt structure that achieves an optimal balance between filtration area and compact design.

This filter cartridge offers reliable depth filtration performance, excellent thermal stability, and superior chemical resistance, making it ideal for protecting critical equipment in harsh industrial environments.

Specifications

The following table summarizes the key specifications for this sintered felt filter element.

Outer diameter	80 mm
Height	310 mm
Working temperature	-20~+100℃
Filter layer	316 Sintered felt
Filtration rate	5 μm
Customized	Yes
Origin	Henan,China
Brand	Huahang Filter

Features

True Three-Dimensional Depth Filtration: Unlike surface filters, the random, interlocking fiber matrix creates a tortuous path that traps contaminants throughout the entire thickness of the media. This results in an exceptionally high dirt-holding capacity and extended service life before cleaning is required.

Exceptional Material Properties: Made from 316 sintered felt this element offers outstanding resistance to corrosion, oxidation, and pitting, particularly in environments containing chlorides or acidic/alkaline media.

High Porosity & Permeability: The felt structure inherently possesses very high void volume, enabling high flow rates with relatively low initial pressure drop. This makes it highly efficient for gas filtration and high-viscosity liquid applications.

Thermal & Mechanical Stability: The sintering process creates bonds at fiber junctions, yielding a rigid, self-supporting structure that resists thermal shock, vibration, and pressure fluctuations without media migration or channeling.

Application areas

This sintered filter is suitable for precision filtration in the following industries:

Analytical and laboratory equipment: Protecting high-performance liquid chromatography systems, mass spectrometers, and precision sensors from particulate contamination.
Pharmaceutical and biotechnology: Sterile venting of bioreactors, filtration of buffers, solvents, and process gases in API production.
Microelectronics and chemical industry: Point-of-use filtration of high-purity process chemicals, photoresists, and specialty gases.
Fuel and hydraulic systems: Protecting precision control valves and metering devices in critical fluid power systems.

Manufacturer & Supplier of Sintered Filter

This sintered filter is manufactured by Huahang Filter, leveraging expertise in powder sintering technology and metallurgy. We focus on producing reliable, application-specific metal filters. Our controlled sintering process ensures consistent pore structure and performance in every batch. We provide technical support for material selection and can offer custom versions of this platform element with different end fittings, lengths, or surface treatments to meet unique system integration needs.

FAQ of Sintered Felt Filter

Q1: How does a sintered felt element differ from a sintered mesh filter?
A1: The core difference is the filtration mechanism and structure. Sintered Felt provides true depth filtration with very high porosity and dirt capacity, ideal for high-flow gas or pre-filtration. Sintered Wire Mesh offers more precise surface/sieving filtration with easier cleanability, better for final polishing of liquids. Felt has higher capacity; mesh offers easier maintenance.

Q2: How is this filter cleaned, and can it be fully regenerated?
A2: Yes, it is designed for multiple regeneration cycles. Effective cleaning methods include ultrasonic cleaning, careful backflushing, or thermal decomposition (burn-off) for organic contaminants. Its depth-loading nature means some trapped fines may remain, but its high capacity allows for many effective service cycles.

Q3: How do I determine the replacement interval?
A3: Monitor the pressure differential across the filter. A gradual increase is normal. When the ΔP reaches a level that impacts system performance or the maximum recommended limit, the element should be cleaned. Replacement is typically needed only if cleaning no longer restores acceptable flow or if physical damage is observed.

FAQ

What is the difference between a standard filter and a custom filter?

Standard filters are mass-produced in fixed sizes and specifications, while custom filters are designed to match specific equipment dimensions, operating conditions, and filtration requirements. Custom filters improve sealing, efficiency, and service life.

How do I select the right filter for my application?

Filter selection depends on fluid or air type, particle size, flow rate, pressure, temperature, and compatibility with the system. Providing operating data helps ensure optimal filtration performance.

Will your replacement filter cartridges damage my equipment? Is the quality guaranteed?

Absolutely not. Our replacement filter cartridges strictly adhere to OEM dimensions, interfaces, and performance standards, using equivalent or superior filter materials, and have passed rigorous ISO testing and end-user validation. We provide a quality guarantee to ensure the safe operation of your equipment.

We don't have a specific model number, only operating condition requirements. Can you help us select a suitable model?

Yes, but you need to provide:

① the filtering medium (oil, gas, water, chemical liquid?);

② flow rate, pressure, and temperature;

③ required filtration accuracy;

④ connection type.

Our technical team will recommend the most economical solution for you.

How can I ensure that this filter element can be adapted to my device/system?

We have multiple ways to ensure compatibility:

Provide original filter element information: Please provide the brand, model, clear photos or detailed dimension drawings of your existing filter element (especially the interface type and size, length, outer diameter, inner diameter).

Provide equipment information: Tell us your equipment brand, model or application scenario, etc.

Contact us: Our technical team has rich experience and can quickly determine or design a fully compatible replacement filter element based on the information you provide. It is recommended that you contact us directly to obtain the most accurate adaptation plan.

How do you ensure the quality and performance of the filter element?

Quality is our lifeline. We insist on:

Strict material selection: Use high-quality raw materials that meet industry standards.

Advanced technology: Use automated or precision-controlled production processes.

Multiple quality inspections: Implement full-process quality inspections from raw material storage to finished product delivery (including size, sealing, filtration efficiency, integrity testing, etc.).

Performance testing: Key products will undergo actual working condition simulation testing.

Compliance with standards: Our production and products comply with [e.g.: ISO 9001].

Customized verification: For customized filter elements, we will confirm key performance indicators with customers and provide test reports (if necessary).

What is a dust collector filter used for?

Dust collector filters remove airborne dust and particulate matter from industrial processes such as welding, grinding, woodworking, and powder handling to protect equipment and improve air quality.

How often should dust collector filter cartridges be replaced?

Replacement depends on dust load, operating hours, and cleaning efficiency. A consistent increase in pressure drop is a common indicator that the filter needs replacement.

Can dust collector filters be cleaned and reused?

Many cartridge filters are designed for pulse-jet cleaning, but they are not permanently reusable. Over time, media fatigue reduces performance and replacement becomes necessary.

What micron rating is best for hydraulic oil filtration?

Common hydraulic filters range from 3 to 25 microns. The optimal rating depends on system sensitivity and manufacturer specifications.

What happens if a hydraulic oil filter is not replaced on time?

Delayed replacement can cause pressure loss, valve sticking, pump wear, and reduced system efficiency, leading to costly downtime.

Where are precision filters commonly used?

Precision filters are widely used in electronics manufacturing, pharmaceuticals, food processing, chemical processing, and high-purity fluid systems.

How does precision filtration affect system performance?

Precision filtration improves product quality, extends equipment life, and reduces unplanned downtime caused by contamination.

What is the difference between a coalescer filter and a separator filter?

They are two distinct technologies often used together to remove liquids from a gas or liquid stream. The key difference is their core function:

A Coalescer Filter merges tiny, invisible liquid droplets into large, heavy ones.

A Separator Filter catches and drains those large droplets from the flow.

How They Work:

Coalescer: The stream passes through a special media (like fine fibers). Microscopic aerosol droplets collide and merge (coalesce) into drops large enough to drain. It solves the problem of suspended mist.

Separator: The flow then enters a chamber with baffles or vanes. The now-large droplets hit the surfaces, fall out by gravity, and collect in a sump. It provides the final, clean separation.

Are stainless steel filter elements washable?

Yes, most stainless steel filter elements can be cleaned using backflushing, ultrasonic cleaning, or chemical cleaning methods.

5μm 316 Sintered Felt Filter Element 80×310

Products Description

Specifications

Features

Application areas

Manufacturer & Supplier of Sintered Filter

FAQ of Sintered Felt Filter

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