PCHG-12: The Compact Powerhouse for Tight Natural Gas Filtration Spaces

Product Overview

The PCHG-12 belongs to PECO‘s PCHG series, a depth-style gas filter-separator cartridge line specifically designed for removing deformable and shear-sensitive contaminants from natural gas streams. Unlike traditional surface filtration media that capture particles only on the outer surface, the PCHG-12 uses a gradient depth structure that traps contaminants throughout the entire thickness of the media. This design significantly increases contaminant holding capacity and extends service life between changeouts.

PCHG cartridges can be used in PECO Series 75 and Series 85 vessels, as well as several competitor filter-separator vessels of similar design. The PCHG series is a recognized upgrade option from traditional fiberglass cartridges, providing increased flow, extended operational life, fewer changeouts, and reduced maintenance costs. The synthetic construction also allows for an environmentally friendly product that can be fully incinerated without residue.

The PCHG-12 is particularly suited for applications where the filter housing has a shorter bed length, such as small compressor stations, satellite metering stations, and compact city gate installations. Despite its compact dimensions, it maintains the same filtration efficiency and chemical compatibility as its longer counterparts in the PCHG family.

Filtration Media Technology

The PCHG-12 utilizes high-performance depth filtration media with a spiral-wound construction. Media layers are thermally bonded and spiral-wound to form a conical helix pattern. This unique multidirectional, tortuous flow path creates a true gradient depth filter that increases residence time for contaminant removal while maintaining porosity and permeability through the media. No glue or binders are used in the construction, ensuring excellent chemical compatibility with a wide range of gas stream chemistries.

The open pore structure maintains permeability while trapping particles, which means the pressure drop remains stable throughout the service life of the element rather than rising sharply as contaminants accumulate. This characteristic is particularly valuable in applications where consistent downstream pressure is critical.

Applications

• City Gate stations: Ensure gas quality before distribution to residential and commercial users

• Compressor & turbine suction: Protect compressor valves from abrasive contaminants

• Contact towers (inlet & overhead): Remove contaminants before absorption processes

• Custody transfer fuel gas: Prevent meter damage from particulates

• Gas distribution & transmission: Remove pipe scale, rust, and welding slag

• Gas treating & dehydration: Remove molecular sieve dust and iron sulfides

Why Choose LEFILTER

LEFILTER is a direct manufacturer with ISO certification, offering PCHG-12 replacement elements at competitive prices compared to imported OEM equivalents. Our dimension tolerance is controlled within ±5%, ensuring proper fit and sealing in your existing housing. We maintain stock availability for common models and provide a 12-month quality warranty on all products. Our technical team offers professional support for model selection and troubleshooting.

FAQ

Q1: What filtration accuracy options are available for PCHG-12?
A: Options range from 0.3μm to 10μm. For iron sulfide removal, 0.3μm rating is recommended. For general pipeline filtration, 5μm or 10μm provides an optimal balance between efficiency and service life.

Q2: When should the PCHG-12 be replaced?
A: Replace when pressure differential reaches 12–15 PSID (0.8–1.0 bar). Maximum allowable differential pressure is 25 PSID without core or 50 PSID with core. Regular monitoring of pressure drop ensures optimal performance and prevents media damage.

Q3: Will LEFILTER’s PCHG-12 fit my existing filter housing?
A: Yes. PCHG-12 is compatible with PECO Series 75 and 85 vessels, as well as several competitor filter-separator vessels of similar design. The 3“ OD × 12” length and DOE end cap configuration ensure proper fit.

Q4: What sealing options are available?
A: Integral end caps serve as standard seal. Optional gasket materials include Buna-N, EPDM, and Viton to meet different temperature and chemical resistance requirements.

Key Specifications