FG-36: The Full-Length Fiberglass Standard for Heavy-Duty Filtration

Product Overview

The FG-36 is a 36-inch gas filter-separator cartridge designed for natural gas, manufactured gas, and other non-corrosive gases including nitrogen, carbon dioxide, propane, and butane. FG Series elements are widely installed in gas gathering stations, compressor stations, distribution stations, and terminal facilities.

The FG Series represents PECO’s original filter-separator technology, introduced in 1954. As the longest standard model in the FG family, the FG-36 offers the highest contaminant holding capacity and is commonly specified for mainline transmission applications, large compressor stations, and high-flow city gate stations. Its seamless fiberglass tube media provides reliable filtration across a broad range of operating conditions.

LEFILTER‘s replacement element matches the performance of the original PECO FG-36 cartridge at a competitive price, with shorter lead times and reliable global delivery. The element is available with NBR or Viton seals and a galvanized steel core for structural integrity.

Filtration Media Technology

The FG-36 utilizes high-performance glass fiber media with a gradient density structure. Micro-pores are smaller on the inner layer and larger on the outer layer, increasing flow volume and contaminant loading capacity while resisting blockage. The optimized fiber diameter and spacing ensure low filtration resistance and stable pressure drop characteristics across the entire service life.

The glass fiber media provides excellent chemical compatibility and can withstand a wide range of gas stream chemistries. The galvanized steel core provides structural support and prevents media collapse under differential pressure, ensuring reliable performance even under high flow rates and variable operating conditions.

Applications

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

• Compressor station suction: Protect compressor valves from abrasives

• City gate stations: Ensure gas quality before distribution

• Custody transfer metering: Prevent meter damage

• Gas processing plants: Remove dust and particulates

• Gas turbine fuel systems: Protect turbine blades

• Gas gathering systems: Remove sand and corrosion products

Why Choose LEFILTER

LEFILTER is a direct manufacturer with ISO certification. Our FG-36 replacement elements offer reliable filtration efficiency with NBR as standard seal and Viton available for higher temperature applications. We provide competitive pricing compared to imported OEM equivalents, stock availability for common models, and a 12-month quality warranty. Our technical team offers professional support for model selection and application optimization.

FAQ

Q1: What is the FG-36 used for?
A: The FG-36 is a natural gas filter-separator cartridge used for gas-liquid and liquid-solid separation. It removes solid particles (pipe scale, rust, dust) and liquid aerosols from natural gas streams to protect downstream equipment.

Q2: What filtration accuracy options are available for FG-36?
A: Options range from 0.3μm to 10μm and above. For applications with precision equipment, 5μm or 10μm is recommended. For filtering fine particles, 0.3μm or 0.5μm is suggested.

Q3: When should the FG-36 be replaced?
A: Replace when pressure differential reaches 0.1 MPa. The maximum allowable pressure drop is 1 MPa. The 36-inch length provides the highest dirt holding capacity in the FG family, resulting in the longest service intervals under similar conditions.

Q4: What sealing options are available for FG-36?
A: We offer NBR as standard, with Viton available for higher temperature and chemical resistance requirements.

Key Specifications