Nitrogen Filtration

Types of Nitrogen Filtration

Nitrogen filtration elements are crucial components in ensuring the purity of nitrogen gas used in

various industrial applications. These elements target specific contaminants that can enter the nitrogen

stream during production, storage or transportation. Here are the common types of nitrogen filtration elements:

1. Depth filters:

   These filters, often made of pleated paper or synthetic fibers, trap contaminants throughout

their structure. They are effective in removing larger particles like dust, rust, and pipe scale.

2. Coalescing filters:

    These filters use a fine mesh to capture liquid aerosols and mists suspended in the

nitrogen gas. The fibers in the mesh cause water droplets to combine (coalesce) into larger drops that can

then be drained from the filter element.

Coalescing filter nitrogen filtration element

3. Membrane filters:

These filters use a thin, selective membrane to allow nitrogen gas to pass through while

blocking contaminants.

They are effective in removing very fine particles, bacteria, and viruses.

4. Activated carbon filters:

These filters use specially treated carbon granules with a large surface area to trap and

adsorb organic contaminants, 

odors, and oil vapors that may be present in the nitrogen gas.

5. Sintered metal filters:    

These filters are made from compressed metal powder that is sintered (fused) at high temperatures to

create a rigid, porous structure. They are very effective in removing fine particles and can withstand

high pressures and temperatures. 

Elevate the efficiency and reliability of your nitrogen filtration system with HENGKO's expertly designed nitrogen

filtration elements. As a leading OEM Sintered metal filter manufacturer, we specialize in customizing solutions

that perfectly align with your specific requirements. Whether you're looking for standard sizes or unique designs,

our team is here to deliver excellence. Don't settle for anything less than the best.

Why Nitrogen Tube Sparger Application for Wave soldering, reflow soldering equipment ? 

1. Application of Nitrogen Tube Sparger in Wave and Reflow Soldering

Wave Soldering

Nitrogen spargers are used to create a controlled nitrogen atmosphere within the wave soldering chamber.

The sparger delivers nitrogen gas evenly to minimize oxygen content, reducing oxidation of the solder and metal surfaces.

It ensures cleaner solder joints, reducing dross formation.

Reflow Soldering

During reflow soldering, nitrogen spargers supply a consistent nitrogen environment throughout the heating process.

They help maintain the inert atmosphere in the reflow oven, which is critical for lead-free and low-residue soldering.

Proper nitrogen distribution reduces oxidation of solder paste and components during the reflow process.

2. Key Benefits of Using Nitrogen Tube Spargers

Reduced Oxidation:

Oxidation at high soldering temperatures is a significant issue. A nitrogen atmosphere, supplied

through spargers, minimizes oxidation of solder joints and surfaces.

Improved Solder Quality:

Enhanced wetting of solder on components due to reduced oxygen improves solder joint quality.

Dross Reduction (Wave Soldering):

Nitrogen reduces the formation of dross (oxidized solder), improving efficiency and saving costs on solder material.

Consistency in Temperature Control:

Spargers ensure even nitrogen distribution, maintaining a uniform soldering environment.

Cleaner Surfaces:

Results in less residue and cleaner solder joints, critical for sensitive electronic components.

Higher Yield Rates:

By reducing defects like bridging, voids, and tombstoning, nitrogen spargers improve the

reliability of soldered products.

3. Why Nitrogen Spargers Are Effective in These Processes

Precision Control:

*Nitrogen spargers provide precise, evenly distributed nitrogen flow in soldering zones.

Customized Solutions:

*Spargers can be designed to fit specific soldering equipment configurations for optimal performance.

Durable Material:

*Made of stainless steel or sintered porous metal, spargers withstand high temperatures and

corrosive environments typical of wave and reflow soldering.

4. How Nitrogen Tube Spargers Work

The sparger introduces nitrogen gas into the soldering chamber or oven.

The porous design of the sparger ensures even gas diffusion, creating a consistent inert atmosphere.

This reduces oxygen levels, thereby enhancing solder joint reliability and minimizing defects.

Contact us today at ka@hengko.com to discuss your needs and explore how our nitrogen gas tubes and

cartridges can transform your filtration system.

Let HENGKO be your partner in achieving unparalleled purity and performance.

Reach out now—your solution to superior nitrogen filtration is just an email away.