Customer Cases

Introduction

LEFILTER, a leading Chinese manufacturer specializing in industrial fluid purification solutions, introduces the Natural Gas Filter Element Model FG-24. Engineered for gas-liquid and liquid-solid separation in natural gas, artificial gas, and other non-corrosive gas streams, this filter ensures pipeline integrity and downstream equipment protection. As part of LEFILTER’s FG series, the FG-24 delivers superior performance, durability, and compliance with international standards such as ISO 9001, ISO 14001, and ISO 45001.

Working Principle

The Natural Gas Filter Element Model FG-24 operates through a three-stage process optimized for gas purification:

1. Pre-Filtration:

• Multi-layer media (pleated filter paper, fiberglass) traps large solid particulates and mechanical impurities.

2. Coalescence:

• Hydrophilic materials merge small liquid droplets into larger volumes, enabling effective separation from the gas stream.

3. Separation:

• Gravity and hydrophobic layers separate coalesced liquids from the purified gas, which is then discharged.

The inside-to-outside flow design and coreless construction prevent bypass and ensure uniform flow distribution, maximizing media utilization.

Performance & Advantages (Continued)

1. High Separation Efficiency (Continued):

• The FG - 24 filter element is designed to achieve an extremely high separation efficiency. In addition to removing 99.9% of liquid droplets and solid particles of 24 microns or smaller, it can also effectively capture sub - micron particles to a large extent. This high - level purification ensures that the natural gas meets the strict quality requirements of various industrial applications, reducing the risk of equipment damage and process disruptions caused by contaminants.

2. Durable Construction (Continued):

• The use of stainless - steel housing provides excellent resistance to corrosion, even in environments with high humidity, acidic or alkaline gas components. The composite media is carefully selected and engineered to withstand the high - pressure and high - flow conditions typically encountered in natural gas pipelines. This durability means that the filter element has a long service life, reducing the frequency of replacements and associated maintenance costs.

3. Low Pressure Drop:

• The unique pleated design of the filter media maximizes the surface area available for filtration. This allows the natural gas to flow through the filter with minimal resistance, resulting in a low pressure drop. A low pressure drop is crucial in natural gas systems as it helps to maintain the energy efficiency of the pipeline and reduces the load on compressors and other downstream equipment.

4. High Dirt - Holding Capacity:

• The FG - 24 can hold a large amount of dirt and contaminants before reaching its maximum operating capacity. This is due to its advanced media structure and design, which allows for efficient distribution of captured particles throughout the filter element. As a result, the filter can operate for extended periods between replacements, improving the overall reliability of the gas filtration system.

5. Cost - Effectiveness:

• Compared to some of its competitors in the market, the FG - 24 offers a cost - effective solution for natural gas filtration. Its long service life, low maintenance requirements, and high - performance characteristics translate into lower overall operating costs. Additionally, LEFILTER's efficient manufacturing processes and economies of scale enable them to offer the product at a competitive price without compromising on quality.

Product Structure

The Natural Gas Filter Element Model FG - 24 has a well - thought - out and robust structure:

1. Filter Media:

• The core of the filter element is the multi - layer composite filter media. It consists of an outer layer of coarse - pore filter paper that acts as a pre - filter, capturing large particles and preventing them from reaching the inner layers. The middle layer is made of fine - pore fiberglass or other high - efficiency filtration materials, which are responsible for the main separation of small particles and liquid droplets. The inner layer is often a support structure that provides mechanical strength to the media.

2. End Caps:

• The filter element is equipped with end caps at both ends. These end caps are typically made of high - strength plastic or metal materials, such as polypropylene or stainless steel. They are designed to provide a tight seal between the filter element and the filter housing, preventing any bypass of unfiltered gas. The end caps also help to hold the filter media in place and ensure its proper alignment within the housing.

3. Central Tube (Optional):

• In some configurations, a central tube may be included in the filter element. This tube provides additional support to the filter media, especially in high - pressure applications. It also helps to direct the flow of gas through the filter in a more uniform manner, enhancing the overall filtration efficiency.

4. Outer Wrap:

• An outer wrap is often applied to the filter element to protect the media from mechanical damage during handling and installation. The outer wrap can be made of a porous material that allows the gas to flow freely while still providing a physical barrier to prevent any external debris from entering the filter.

Product Application in Pharmaceutical Water

Although the primary application of the FG - 24 is in natural gas filtration, it can also play a role in the pharmaceutical water treatment process in some indirect ways:

1. Gas - Assisted Processes:

• In pharmaceutical water production, certain processes may use gas for agitation, sparging, or other purposes. The FG - 24 can be used to filter the gas used in these processes, ensuring that the gas is free from contaminants that could potentially contaminate the pharmaceutical water. For example, in the production of sterile water for injection, any gas used in the process must be of high purity to prevent microbial or particulate contamination.

2. Protecting Equipment:

• In the pharmaceutical water treatment plant, there may be equipment that uses natural gas for heating or power generation. The FG - 24 can be installed in the gas supply line to these equipment to protect them from gas - borne contaminants. This helps to ensure the reliable operation of the equipment and reduces the risk of breakdowns that could disrupt the pharmaceutical water production process.

Other Industrial Applications

1. Petrochemical Industry:

• In refineries and petrochemical plants, natural gas is used as a feedstock, fuel, or for inerting purposes. The FG - 24 can be used to filter the natural gas before it enters various processes, protecting catalysts, reactors, and other equipment from contamination. It helps to maintain the quality of the final products and improve the efficiency of the production processes.

2. Power Generation:

• Natural gas - fired power plants rely on clean natural gas to operate efficiently. The FG - 24 can be installed in the gas intake system of these power plants to remove impurities from the gas, reducing the wear and tear on gas turbines and other power - generation equipment. This leads to increased power output and reduced maintenance costs.

3. Food and Beverage Industry:

• In the food and beverage industry, natural gas is used for heating, cooking, and drying processes. The FG - 24 can ensure that the natural gas used in these processes is free from contaminants that could affect the quality and safety of the food and beverage products. It helps to meet the strict hygiene and quality standards of the industry.

4. Metallurgical Industry:

• In metal smelting and processing, natural gas is often used as a fuel. The FG - 24 can filter the natural gas to prevent the introduction of impurities into the metal - processing environment, which could affect the quality of the metal products. It also helps to protect the furnaces and other equipment from damage caused by gas - borne particles.

Conclusion

The Natural Gas Filter Element Model FG - 24 by LEFILTER is a high - performance, reliable, and cost - effective solution for natural gas filtration in a wide range of industrial applications. Its advanced design, high separation efficiency, and durable construction make it an ideal choice for ensuring the quality of natural gas and protecting downstream equipment. Whether in the natural gas pipeline network, petrochemical plants, power generation facilities, or other industries, the FG - 24 can provide excellent filtration performance and contribute to the smooth operation of industrial processes.

Alternative Models

The following JFS-series and equivalent models are available for diverse needs (extracted from documentation):