G¼ Thread Stainless Steel Sintered Powder Filter Element

Products Description

Introducing a precision-engineered, compact filtration solution for instrument protection, small-scale fluid handling, and analytical systems: the G¼ Thread Stainless Steel Sintered Powder Filter . This miniature yet robust filter is crafted from 304/316L stainless steel powder through a high-temperature sintering process, creating a porous, monolithic structure with uniform pore distribution and excellent mechanical strength. Its integrated G¼ (1/4″) male or female thread allows for direct, secure, and leak-free installation into compatible ports, manifolds, or lines, providing reliable inline protection in space-constrained applications.

This sintered powder filter offers absolute-rated surface filtration, effectively capturing and retaining fine particulate, scale, and other solid contaminants from gases or liquids. Its all-metal construction ensures outstanding chemical compatibility, resistance to high temperatures and pressure spikes, and the ability to be repeatedly cleaned and reused.

Specifications

Below is the specification of the custom sintered filter. If you are interested in this kind of filters, please contact us to get more details.

Outer diameter	17.3 mm
Height	33 mm
Working temperature	-20~+100℃
Filter layer	Stainless steel
Filtration rate	15~25 μm
Connection	G¼ External thread
Origin	Henan,China
Brand	Huahang Filter

Features

Integrated G¼ Thread: Enables direct, secure, and compact inline installation without the need for additional adapters, simplifying system design and assembly.

Superior Depth Filtration via Powder Sintering: The sintered metal powder matrix offers exceptional dirt-holding capacity and consistent filtration performance. Unlike surface filters, it traps particles throughout its depth, extending service intervals and providing stable, low pressure drop.

Excellent Thermal & Chemical Resistance: Constructed entirely from 304 or 316L stainless steel, the unit withstands high temperatures (suitable for most industrial process conditions) and resists corrosion from a wide range of aggressive chemicals, solvents, and process fluids.

High Structural Integrity & Cleanability: The monolithic sintered element is extremely strong, resistant to shock and pressure cycling. It can be effectively cleaned via back-flushing, ultrasonic methods, or thermal processing for repeated use, offering a long service life and low total cost of ownership.

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.

Controlled Sintering for Consistent Porosity: Our sintering process is finely tuned to create a uniform porous matrix, providing a reliable and predictable absolute filtration rating (e.g., 2, 5, 10, 20, 40 microns) in this small form factor.
Precision Thread Machining: The G¼ threads are machined to exacting standards, ensuring a perfect seal with standard fittings and preventing cross-threading or leakage in critical fluid paths.
High Material Purity & Integrity: We use high-grade 304 or 316L stainless steel powder, resulting in a filter with excellent corrosion resistance and structural integrity suitable for demanding analytical or process applications.
Durability and Cleanability: Despite its small size, the monolithic sintered structure is robust and can be backflushed or ultrasonically cleaned numerous times, offering long-term service life and value.

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.

G¼ Thread Stainless Steel SIntered Powder Filter 17.3×33

Products Description

Specifications

Features

Application areas

Manufacturer & Supplier of Sintered Filter

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