Alternative Vehicles Need High Pressure CNG Filters
Throughout the stages of compression many contaminants can enter into the system. Excessive amounts of liquid aerosols and solid particulate contamination are common in high pressure systems. In addition, higher temperature levels are possible and may cause liquid oils to varnish. This contamination can lead to poor component performance and wear that may lead to unscheduled maintenance.
Watch our video to see how our filters can help.
Our Applications
Click any of the links below to take a closer look at how from pipeline to engine, Finite filters provide the critical filtration required for most alternative fuel systems.
Filters for CNG Compression Systems
Filters for CNG Dispensing Applications
Filters for On-Vehicle Applications
Filters for Dual Fuel Applications
Filters for CNG Virtual Pipeline
Filtration Media for CNG
Through years of research and devlopment working with OEMs, we have become the CNG Filtration leader in the industry.
Our Finite Uni-Cast filter elements are unique in the industry. The Uni-Cast formed microglass elements provide depth style filtration that traps and removes the fine oil aerosols from the hot, high pressure CNG while providing high flow and low pressure drop.
The Uni-Cast coalescing elements come in Grades 10C, 8C, 6C, and 4C. The Grades 10C and 8C are used to remove the bulk contaminants, and the Grade 4C is used in the latter higher pressure stages. The Parker Finite Grade 4C media is designed especially for use with high pressure CNG. When it comes to capturing and draining compressor oil carryover nothing else works like the Parker Finite Grade 4C element. General wrapped and layered style media filters try to emulate the performance of the Finite elements, but users often end up with oil in their systems. The Parker Finite Uni-Cast Grade 4C is formulated to trap tiny aerosols and particulates from hot, high pressure, thinner-than-air, low specific gravity, CNG.
Protect Equipment, Maximize Uptime
Natural gas is gathered from a pipeline and travels to a connecting compressor station. The gas is elevated to pressures ranging from 2000 PSIG up to 5000 PSIG and the resultant CNG is stored in large tanks. The CNG then makes its way to a gas dispenser where it is ready for use in natural gas vehicles.
Filters are critical at each stage to ensure clean gas as a final product. Contamination that collects during handling, water that condenses in tanks and compressors that leak oil into the fuel stream are all problems that could shorten the life of expensive equipment, create unnecessary downtime and increase maintenance costs. Finite offers a variety of high pressure compressed air and gas filters for your CNG applications.
Why Parker?
A leader in the design and manufacture of filtration products for natural gas, our Finite's Uni-Cast element construction offers a distinct advantage over comercially available wrapped elements. Our depth style media offers high efficiency filtration over a wide range of flows. This is ideal for CNG refueling stations where the gas flow rate starts high and finishes at lower flow rate over the duration of the fueling cycle.
From pipeline to engine, Finite filters provide the critical protection required for alternative fuel systems.
Finite Uni-Cast Elements
Finite Uni-Cast elements maintain coalescing efficiency over a very wide range of flow. The unique Uni-Cast design provides a deeper, progressively efficient filtration media bed that allows for high efficiency and low differenctial pressure throughout the fill cycle of alternative fuel vehicles. Wrapped or layered style elements will satisfy a normal range of compressed air flows, but the flow rate and pressure dynamics of a CNG fill cycle are much different. When the dynamics change within a matter of minutes, a wrapped element loses its filtration efficiency over the wide range of volumetric flow.
Good filtration prevents contamination and compressor oil from migrating downstream. The high pressures and flows in a CNG system are a challenging environment for filter elements. Parker Finite filters are designed to withstand high differential pressures without rupturing. The Parker Uni-Cast depth style elements for high pressure housings (>800 psi) have steel retainers to ensure high burst strength with no gaps in the media to allow break-through.
Finite Filtration Resources
Looking to find more details about Finite filtration solutions? We've compiled helpful resources including literature, videos and blogs in one place, making it easy to quickly learn more about our products.
Have a Question?
We are happy to help. Contact us today to discuss your application or learn more about Finite filtration.