Elektrogas Filtering FG

The FG type is a filter for gas pipelines according to DIN 3386, with very high holding capacity of dustand impurities, suitable for the protections of devices installed downstream

Deltaelektrogas FG Filter for Gas

Inlet and outlet pressure chambers can be provided with gauges, to connect a gas differential pressure switch to monitor the pressure difference.When the dust storage capacity is exceeded, the filter element must be replaced. FGS1-2 models are provided with a washable mesh filter cartridge.


The filters are made of aluminum alloy die-cast, with a wide range for inlet/outlet connections from DN15up to DN 150.

Suitable for natural gas, town gas, LPG (gaseous), biologically produced methane and air.On request the filters can be provided with special seals suitable for aggressive gases (COG).

The incorporated filtering cartridge is a steel support frame covered with an high performance nonwoven made of polyolefine fibers, which satisfy the stringent requirements of Fire Class F1 according to DIN 53438 and are thus self-extinguishing.

Considering the same connection, the FGS are smaller models of FG filters: the body is more compact with a reduced filtering surface.

FGS1-FGS2 models are provided with a mesh filter cartridge.Provided with pressure gauges for both inlet and outlet chamber(optional for threaded models).

All components are designed to withstand any mechanical, chemical and thermal condition occurring during typical service. Effective impregnation and surface treatments have been used to improve mechanical sturdiness, sealing and resistance to corrosion of the component

Technical Specification

  • Connections

Gas threaded ISO 7-1 from Rp1/2to Rp2
Flanged PN16 –ISO 7005 from DN65 to DN150

  • Max. operating pressure

2 bar (200 kPa)
6 bar (600 kPa)

  • Ambient temperature: -15°C / +80°C
  • Flow capacity: see charts
  • Pore width of filter element: ≤ 50 μm
  • Filtration class: G4 according to EN 779
  • Pressure gauges(when provided)

Inlet and outlet chambers
G1/8 onto threaded models(except FGS1-FGS2)
G1/4 onto flanged models
according to ISO 228-1

  • Installation: Into horizontal and vertical pipeline
  • Gas type

Natural gas, town gas, LPG (gaseous) of families 1,2,3
biologically produced methane and air
On request special version for COG

  • Materials in contact with gas

Aluminium alloy
Plated steel
Polypropylene fibers
Nitrile rubber (NBR)
Fluoroelastomer (FPM) (optional)