Fuel gas filter

Filter for gaseous fuels in the marine

In shipping, filter systems must satisfy very differing requirements: In addition to protection of the engines, reduction in the fuel consumption, as well as environmental aspects are in the focus of shipping companies. The long travelling times between the ports make robust filter systems indispensable for operation of the engines without malfunction.

Environmental restrictions: Filtration of natural gas/LNG in shipping

In addition to heavy oil and marine diesel, Liquified Natural Gas (LNG) as a modern fuel to drive ships, also plays a growing role. Particularly in the aspect of environmental restrictions, this fuel is significantly more friendly than diesel or heavy oil. So-called dual-fuel motors, which can be operated with gas as well as with diesel or heavy oil, take into account these regulations. In the gas operation, these engines require another fuel: ignition oil. This is used to induce combustion of the gas in the piston chamber. This ignition oil is a highly-purified diesel that must be filtered very intensively.

Protection of engine components

Gas filters should protect engine components against wear and damage and, thereby, must withstand very high-volume flows. Depending on the contamination of the untreated gases and the particles and aerosols included in the gas, different procedures must be used. Thereby, it can be filtration of solids, liquids or a combination of both parts. The result of the filtration is always dependent on:

  • the type of filter medium,
  • filter element
  • and thus, as necessary, combined pre-separators.

BOLLFILTER for gaseous fuels in the marine

Also as a specialist for gas filtration, BOLL & KIRCH has efficient products in the range. Filter housings are available made of cast iron, steel or stainless steel in the different pressure stages. All filter elements are in-house designs and are exclusively manufactured in our in-house production facility. Here, we primarily use stainless steel and glass non-woven as filter medium.

BOLLFILTER benefits

The materials selected and the best processing ensure precise function, reliability and no maintenance of the BOLL & KIRCH fuel filters.

Simplex filter

BOLLFILTER Simplex Type 1.12.2

BOLLFILTER Simplex Type 1.12.2
Nominal diameter
DN 25 - DN 80
Connections inline
yes
Filter element
star-pleated element
filter cartridge
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BOLLFILTER Simplex Type 1.78.1/ 1.58.1

BOLLFILTER Simplex Type 1.78.1/ 1.58.1
Nominal diameter
DN 65 - DN 350
Connections inline
no
Filter element
star-pleated element
disposable cartridges
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Duplex filter

BOLLFILTER Duplex Type BFD-P HD

BOLLFILTER Duplex Type BFD-P HD
Nominal diameter
up to DN 200 (further on request)
Filter element
fibreglass/stainless steel disposable cartridges*

cleanable elements (star-pleated) made of stainless steel
Grade of filtration
0,5 - 250 µm
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