As the core consumable of industrial gas pipeline separation vessels, Coalescing Filter represented by PCHG series coalescer filter cartridge has become standard matching spare parts for global oil & gas midstream facilities. This professional coalescer filter element adopts multi-gradient spiral fiberglass composite media, which can capture 0.1μm micro water mist, hydrocarbon aerosols and pipeline rust inside raw natural gas filter medium. The special seamless winding structure of the coalescer cartridge expands liquid contact area greatly to realize complete demulsification, merging tiny scattered droplets into large gravity-settling liquid beads. Without qualified gas filter cartridge coalescing components, compressors, flowmeters and pressure regulating valves will suffer severe corrosion and blockage caused by liquid impurities, leading to frequent equipment shutdown and high maintenance costs.
Working Principle of PCHG Coalescer Filter Cartridge
Unpurified raw natural gas flows from outside to inside through the PCHG coalescer filter cartridge. The outer coarse interception layer first traps large solid slag and pipeline scale; the middle gradient fiberglass layer is the core functional layer of the coalescer filter element, which adsorbs emulsified micro liquid droplets and gathers them into visible large liquid drops. After full coalescence treatment, condensed liquid falls to the vessel’s bottom storage tank, while dry purified natural gas passes through the inner core and flows out as qualified medium. The liquid removal efficiency of this coalescer cartridge reaches 99.98%, far higher than ordinary single-layer natural gas filter without gradient coalescing media. This two-stage gas-liquid separation process is widely matched with supporting gas filter element separator cartridges to build complete purification systems.
Core Technical Specifications
Optional Filtration Precision: 0.1/0.3/0.5/1/5/10μm
Max Continuous Temperature: Polyester media 82℃, high-temp polyester media 116℃
Max Working Pressure: 3.4MPa
Sealing Materials: Buna-N, EPD, Viton fluororubber optional
Compatible Vessel: PECO, Faudi standard filter separator housings
Every batch of PCHG coalescer filter cartridge passes ISO 16889 multi-pass fatigue testing before delivery, fully compatible with all types of Oil & Gas Purification Equipment deployed in gas gathering stations, compressor stations and LNG terminals. Custom length, end cap and sealing structures are available for non-standard filter vessels.
Five Main Product Advantages
1 Ultra-high Coalescing Capacity
Multi-layer gradient structure of the coalescer filter element maximizes liquid adsorption area, residual free liquid in outlet gas below 15ppm.
2 Large Dirt Holding Volume
Spiral winding coalescer cartridge extends replacement cycle of the gas filter, cutting spare part purchasing frequency.
3 Anti-deformation Reinforced Core
Electroplated steel inner core resists high-speed gas impact, no media collapse under fluctuating pipeline pressure.
4 Sulfide Gas Corrosion Resistance
Integral anti-rust end caps adapt high-sulfur raw natural gas working environments.
5 Full Customization Support
Adjust precision, length and seal type for all special natural gas filter vessel requirements.
Main Application Scenarios
PCHG coalescer filter cartridge is widely installed in natural gas gathering stations, compressor rooms, refinery fuel gas pipelines and coal chemical gas transmission workshops. Matched with SS series separator cartridge, it forms two-stage solid-liquid-gas separation to fully protect downstream flow control equipment. For water treatment supporting demands, we supply complete Water Filter Element (RO & UF Membrane) and front High Flow Filter series for industrial pure water systems.
Full PCHG Series Model List (All Available Sizes)
PCHG12, PCHG24, PCHG36, PCHG72, PCHG312, PCHG336, PCHG536, PCHG572
Other Related Products
SS Series Natural Gas Separator Filter Element
FAQ About PCHG Coalescer Filter Cartridge
Q1 What media is used for standard PCHG coalescer filter cartridge?
A1 Standard grade adopts polyester fiberglass coalescer filter element; 0.1μm nano media is optional for high-sulfur natural gas filter working conditions.
Q2 When to replace the PCHG gas filter cartridge?
A2 Replace the coalescer cartridge when system differential pressure rises to 12–15 psi, service life ranges 3–12 months based on inlet gas impurity concentration.
Q3 Can PCHG fit PECO standard filter vessels?
A3 All PCHG series coalescer filter cartridge are fully interchangeable with PECO separator housings without modification.
Q4 Is high-temperature resistant coalescer filter element available?
A4 Upgraded polyester media supports stable operation under 116℃ high-temperature natural gas pipelines.
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