PECO PCHG-12 High Precision Natural Gas Coalescing Filter Cartridge

Product Overview

PECO PCHG-12 is a compact short-size model within the PCHG tapered coalescer series. Distinct from cylindrical FG and JFG filters, the PCHG lineup features a conical structural design that optimizes gas flow distribution inside filter vessels. The tapered shape reduces flow dead zones and avoids local media overload during continuous operation. Gradient layered fiber realizes staged interception, effectively preventing rapid blockage caused by mixed solid and liquid pollutants.

This replacement cartridge utilizes premium oleophilic and hydrophobic borosilicate glass fiber media. Fine gradient layers trap submicron liquid droplets and merge scattered aerosols into large liquid masses for gravity drainage, while intercepting rust, dust and particulate impurities carried by gas flow. Precision machined metal end caps form reliable sealing to eliminate gas bypass and short-circuit flow. The internal perforated support framework maintains stable shape under frequent pipeline pressure swings, resisting media deformation and layer separation over long operating cycles. Compact size and stable separation performance make PCHG-12 ideal for projects with limited installation space.

Working Principle

PCHG-12 works based on mature tapered inside-out coalescing separation mechanism:

1. Contaminated natural gas carrying liquid aerosols and solid impurities flows radially outward from the inner support core.

2. Gradient oleophilic fiber media catches tiny liquid aerosols and coalesces micro droplets into separable large liquid masses.

3. Coalesced liquid slides down the outer surface of filter media under gravity and is discharged through the housing drain port.

4. Dry purified gas flows into downstream pipelines, completing gas-liquid-solid three-phase separation.

Key Features

- Tapered optimized structure: Improve gas flow uniformity and reduce local media load

- Compact short-size design: Suitable for filter vessels with limited installation length

- Gradient coalescing media: Stable interception of submicron liquid aerosols

- Metal end cap full sealing: Prevent bypass filtration and guarantee purification efficiency

- Anti-collapse rigid inner support: Stable structure under fluctuating gas pressure

- 100% dimensional interchangeability: Direct plug-and-play replacement

Full Compatible PCHG Series Model Range

PCHG-12, PCHG-24, PCHG-36, PCHG-312, PCHG-324, PCHG-336, PCHG-536, PCHG-572

Application Scenarios

PCHG-12 coalescing filter elements are widely adopted in medium-low flow natural gas purification systems, including instrument gas pretreatment units, small gas pressure regulating stations, metering skids and distributed industrial gas supply equipment. As core separation parts, they remove condensate, free water and solid particles from natural gas, protecting precision sensors, flow meters and control valves from liquid corrosion and particle blockage, ensuring stable operation of downstream precision equipment.

Product Advantages

1. Unique tapered structure achieves more even gas distribution than conventional cylindrical filters

2. Small overall size adapts to compact filter housings with limited installation space

3. Balanced dirt holding capacity extends service cycle and lowers maintenance frequency

4. Stable low pressure drop will not hinder the transmission efficiency of medium-flow gas pipelines

5. Complete PCHG series supports unified procurement and batch matching replacement

FAQ

Q: What is the difference between PCHG series and FG series filter elements?

A: PCHG adopts tapered conical structure, while FG series is straight cylinder. The tapered design provides better flow uniformity in specific PECO filter housings.

Q: Can PCHG-12 remove micro liquid droplets in natural gas?

A: Yes, gradient glass fiber media effectively captures submicron aerosols and realizes deep gas-liquid separation.

Q: Is PCHG-12 directly interchangeable with original PECO filters?

A: All installation dimensions, end cap structure and sealing size fully match original standards for seamless plug-and-play installation.