Customer Cases

Product introduction

NGGC Series Natural Gas Filter Cartridges are professional high-efficiency filtration and coalescence separation elements exclusively engineered for natural gas processing systems, covering the entire natural gas industry chain from upstream extraction, gathering and transportation to midstream transmission and downstream terminal utilization. This series is specially designed to address the core pain points of natural gas purification—efficient removal of solid particulates (rust, pipeline scale, dust, metal shavings) and liquid contaminants (condensate oil, water mist, hydrocarbon aerosols) in natural gas streams. Integrating high-precision filtration and advanced coalescence separation functions, NGGC filter cartridges adapt to the complex working conditions of natural gas systems such as high pressure (up to 16 MPa), wide temperature range and variable flow rate, and feature standardized structural design that is fully compatible with mainstream natural gas filter separators, skid-mounted purification units and pipeline filter housings on the market. By purifying natural gas to meet international pipeline transmission and industrial application purity standards, the series effectively protects downstream key equipment including compressors, pressure regulating valves, flow meters, gas turbines and LNG liquefaction units from abrasion, corrosion and blockage, ensuring the safety, stability and energy efficiency of the entire natural gas transmission and utilization system, and complying with API, ISO and other international natural gas processing industry standards.

Filtration accuracy

Filter media

NGGC Series Natural Gas Filter Cartridges adopt hydrophobic and oleophobic modified borosilicate glass fiber as the core coalescing and filtration media, which is manufactured through an advanced high-temperature adhesive-free hot-melt compounding process, completely avoiding secondary pollution of natural gas caused by the dissolution of chemical adhesives. The filter media features a scientific gradient pore size distribution structure: the outer layer with larger pores is responsible for preliminary interception of large solid particles and coarse liquid droplets, and the inner layer with smaller and dense pores realizes fine filtration and efficient coalescence of micro liquid droplets, which greatly improves the dirt-holding capacity of the media while maintaining an ultra-low initial pressure drop (≤0.02 MPa). For the harsh working conditions of high-sulfur, high-chloride and high-humidity natural gas, the enhanced models of the series are equipped with PTFE-coated modified glass fiber media to further improve the corrosion resistance and anti-adhesion performance of the media. The entire media structure is reinforced with an inner high-strength 304/316L stainless steel center tube (optional according to working conditions) with high pressure-bearing capacity, and wrapped with an outer anti-impact polypropylene (PP) rigid protective mesh to prevent media deformation, rupture or shedding under the impact of high-pressure natural gas. The end caps are made of high-density epoxy resin with excellent sealing and corrosion resistance, and the sealing interface uses fluororubber (FKM) gaskets with high temperature resistance (-40℃ to 120℃), oil resistance and aging resistance, ensuring zero bypass of unfiltered natural gas and guaranteeing the integrity and reliability of the entire purification process.

Replacement cycle

Features

1. Specialized design for natural gas: Exclusively developed for the characteristics of natural gas media and industry chain working conditions, with targeted optimization of filtration, coalescence and pressure-bearing performance, matching the core needs of natural gas purification.

2. Graded high-precision purification: Multiple filtration and coalescence precision options (1μm/3μm/5μm solid, 0.3μm/0.5μm liquid) to meet the purification requirements of upstream, midstream and downstream different links of natural gas.

3. High-performance modified filter media: Hydrophobic and oleophobic modified borosilicate glass fiber with gradient pore structure, adhesive-free hot-melt process, large dirt-holding capacity, low pressure drop and zero secondary pollution to natural gas.

4. Super high-pressure bearing and structural stability: Reinforced stainless steel center tube, anti-impact PP protective mesh and high-density epoxy resin end caps, able to work stably under high pressure up to 16 MPa without structural damage.

5. Reliable zero-bypass sealing: FKM fluororubber gaskets with wide temperature adaptability and high airtightness, combined with one-piece molded end cap bonding technology, ensure no unfiltered natural gas bypass.

6. Strong environmental and medium adaptability: Adapt to the temperature range of -40℃ to 120℃, and optional 316L stainless steel and PTFE-coated media for high-sulfur, high-chloride and high-humidity natural gas systems, with excellent corrosion resistance.

7. Standardized design and easy maintenance: Universal cylindrical structure and standardized installation interface, fully compatible with mainstream natural gas filter separators, no special tools required for disassembly and assembly, saving maintenance time and labor costs.

8. High cost-effectiveness and long service life: 12-24 months of long service life reduces the frequency of replacement and maintenance, low pressure drop reduces gas transmission energy consumption, significantly cutting the comprehensive operating cost of natural gas systems.

9. Compliance with international industry standards: Manufactured in accordance with API 13C, ISO 18873 and other natural gas filtration and processing standards, with stable product performance and reliable quality, meeting the compliance requirements of the global natural gas industry.

Application areas

Conclusions

Related products

1. NGGC-HT High-Temperature Resistant Natural Gas Filter Cartridge: An upgraded version of the NGGC series, adopting high-temperature resistant ceramic fiber media and silicone rubber gaskets, suitable for high-temperature natural gas systems with working temperature up to 180℃, such as natural gas thermal processing plants and high-temperature refinery associated gas transmission systems.

2. NGGC-CR Corrosion-Resistant Natural Gas Filter Cartridge: Equipped with full 316L stainless steel structural components and PTFE double-coated filter media, with super anti-corrosion and anti-adhesion performance, ideal for high-sulfur, high-chloride and high-humidity natural gas systems such as offshore oil and gas fields and western high-sulfur gas fields.

3. NGGC-FL High-Flow Natural Gas Filter Cartridge: Optimized with an enlarged filtration area and high-density pleat design, the rated flow rate is 2.5 times that of the standard NGGC cartridge, suitable for large-flow natural gas purification systems such as national trunk pipelines and large-scale LNG liquefaction plants.

4. NGGC Pre-Filtration Cartridge: A coarse-precision filter cartridge with 10μm/20μm filtration accuracy, made of high-strength polyester non-woven fabric, used for pre-filtration of raw natural gas with high impurity content in upstream gathering stations to intercept large solid particles and liquid droplets, which can be used in series with NGGC fine filter cartridges to extend their service life.

5. NGGC Series Matching Natural Gas Filter Separator: An integrated high-pressure filter separator skid-mounted unit, perfectly matched with NGGC filter cartridges, equipped with intelligent differential pressure monitoring, automatic liquid drain valve, pressure relief device and online gas quality detection, suitable for centralized purification of natural gas in pipeline stations, LNG plants and industrial gas supply systems.

6. NGGC Miniature Natural Gas Filter Cartridge: A small-size variant of the NGGC series with the same high precision, designed for small-flow natural gas purification systems such as CNG filling station dispensers and industrial small gas turbines.

7. NGGC Reusable Stainless Steel Natural Gas Filter Cartridge: Made of 316L stainless steel sintered mesh with multi-layer gradient pore structure, washable and backflushable for repeated use, with high pressure-bearing and corrosion resistance, suitable for temporary natural gas purification systems and mobile gas supply units.

8. Natural Gas Purification Auxiliary Equipment for NGGC Series: Including automatic drain valves, differential pressure transmitters, gas purity analyzers and filter housing blowback systems, which are matched with NGGC filter cartridges to realize intelligent monitoring and maintenance of natural gas purification systems.