FG-336: Premium Glass Fiber PECO Replacement Natural Gas Filter Element

Product Overview

The FG-336 is a 36-inch gas filter-separator cartridge from PECO's original FG (Fiber Glass) series, invented in 1954 as the pioneering filter-separator technology . This model is designed for natural gas, manufactured gas, and non-corrosive gases including nitrogen, carbon dioxide, propane, and butane.

LEFILTER's replacement element matches the performance of the original PECO FG-336 cartridge at a competitive price with shorter lead times and reliable global delivery .

Fiberglass Media Technology

The FG-336 utilizes seamless fiberglass tube media with the following key features:

• Density-graded structure: The media provides optimal filtration efficiency across the entire flow path

• Low pressure drop: Fiber diameter and spacing are precisely controlled during production 

• High contaminant loading capacity: Inner-layer micro-pores are larger than outer-layer pores, increasing flow volume and contaminant capacity while resisting blockage 

• Excellent chemical compatibility: Fiberglass media withstands a wide range of gas stream chemistries

Applications

The FG-336 replacement filter element is ideal for:

• Natural gas transmission pipelines: Remove pipe scale, rust, and welding slag 

• Compressor station suction: Protect compressor valves and cylinders from abrasives

• City gate stations: Ensure gas quality before distribution

• Gas processing plants: Remove dust and particulates

• Custody transfer metering: Prevent meter damage

• Power generation: Protect gas turbine fuel systems

Why Choose LEFILTER as Your FG-336 Supplier?

• Direct manufacturer with ISO certification

• Filtration efficiency ≥99.98% for 0.3μm solids 

• Cost effective compared to imported OEM equivalents 

• Stock availability for common models

• 12-month quality warranty on all products

• Professional technical support for model selection 

FAQ

Q1: What is the difference between FG-336 and PCHG-336?
A: The FG-336 uses seamless fiberglass tube media—the original PECO filter-separator technology introduced in 1954. The PCHG-336 uses PEACH-depth polyester media, which is considered an upgrade with multi-directional flow paths and higher contaminant loading capacity .

Q2: What filtration accuracy options are available for FG-336?
A: We offer options from 0.3μm to 50μm. For applications with precision equipment, 5μm or 10μm is recommended. For filtering iron sulfide particles, 0.1μm or 0.3μm is suggested .

Q3: When should the FG-336 be replaced?
A: Replace when the pressure differential reaches 12-15 PSID (0.8-1.0 bar). Typical service intervals range from 6 to 12 months depending on gas quality and contaminant load .

Q4: Will LEFILTER's FG-336 fit my PECO housing?
A: Yes. The 4.5" OD × 36" dimensions and DOE end cap configuration are compatible with PECO Series 70H, 70V, and most competitor filter-separator housings .

Key Specifications