Industrial Filter Housing | Bag Filter Housings
Hydrocarbon Filtration Systems has a range of filter vessels available for rental and purchase. HFS provide sizing, design, and fabrication of custom ASME code and non-code filter housings for a broad range of industrial applications.
Filter Housings are built from a selection of metals, including carbon steel, 304, and 316 Stainless Steel, all of which are meant to increase corrosion resistance and eliminate the need for expensive coatings and oxidation within the filter vessels.
HFS offers a wide range of exterior finishes and interior linings customized specifically for your needs.
Need help sizing and tackling your next custom housing filtration project? Contact Hydrocarbon Filtration Systems today!
Frequently Asked Questions (FAQ’S)
What is included in a typical industrial filter housings vessel from hydrocarbon filtration?
Hydrocarbon will collaborate with you from the very beginning to clearly identify your goals and project specifications so that you leave with a system that works perfectly for your needs. Many of our filter vessels come with the following specifications:
- Vertical configuration
- MOC: Carbon steel frame, 304/L and 316 Stainless Steel Vessels, Duplex Stainless or other stainless alloys on some models
- ASEM code compliant
- Configured to your criteria for:
- Additional code, HAZOP, Class/Div requirements
- Temperature and pressure requirements
- Process flow rate
- Physical and chemical properties for fluids that will be filtered
- Preferred inlet/outlet nozzle sizes
- Flange preferences (NPT, BSPT, SAE available)
- Closure style preferences (ex. quick opening, swing-bolt, flange)
- Vessel ratings for non-destructive testing, RT, UT, PT, MT WFMT, PMI, Hardness, PWHT and ferrite level testing
- Supplemental nozzles: vents, delta P ports, clean drains, sample ports
- Preferred internals: baskets, hold down plates, etc.
- Cover davit system mechanical or hydraulic
- Internal & external finishes/linings, including: Electropolishing, passivation, hot-dip galvanizing, nickel plating, painting, powder coating, media/abrasive blasting, zinc plating, teflon coating, rubber coating, epoxy coating, thermal spray aluminum, and fireproofing
- Drawings and documentation in preferred software or formats (AutoCAD, DWG/DWZ, IGES, STP, JPG/JEPG, PDF.
Can these be used for inline filtration, kidney loop or reservoir fluid transfer?
Filter Vessels can be used as an inline filtration process, also known as Kidney Loop Filtration, where fluids are transferred and filtered between a reservoir and filter housing. This process is very similar to how your kidneys continuously filter blood throughout your body. After 10 to 20 passes, particulate contamination generally meets or exceeds new oil cleanliness results.
How can I tell the filter is working? Should the pressures be the same upstream and downstream?
Keep in mind that as a filter element loads, it will indicate noticeable different pressures on the differential pressure gauge and will show much less particle upstream than downstream. HFS offers options of manual filter gauges, manual filter alarms, and electronic filter alarms.
All this means is that the filter is working by taking particle count samples from both upstream and downstream locations and you are given a positive confirmation of the effectiveness of your filtration application.
Do you recommend or include any valves with bag filter housings or filter vessels?
We would also recommend a vent and drain valve for all filter vessels. A vent valve is used to purge off any air or gasses present in the filter as it fills with oil. Note that these vents are generally located at the highest point of the filter vessel whereas drain valves are located on the bottom of the vessel.
Another great feature to include is a small ¼” upstream and downstream sample port valve. By taking samples of both upstream and downstream ports, you can determine the overall efficiency of the filter element.
Should I get a pressure gauge with my filter vessel?
Another great option to include on a filter vessel is a pressure gauge.
Let’s say, for example, your main pump pressure is at 100 PSI. In that case, you would want a compound pressure gauge that can go up to 160 PSI. This way, you have a buffer in case the filter vessel becomes dead-headed where the max pump pressure is subjected to the filter vessel.
How long will the filter last?
The best answer we can give is that it all depends on how much contamination is present in the fluid you are trying to filter.
It is important to remember that a differential pressure gauge will show you an amount based only on differential pressure, and when using a new filter, the pressure will present very low. As contamination begins to accumulate, the differential pressure will increase.
We typically recommend that bag filters be changed at 20 pounds per square inch differential (PSID) and cartridge filters at around 40 PSID.
What ports are available for filter housings?
Many ports are available for filter housings, but we prefer Code 61 style O-ring flanges because they offer superior sealing protection from leaks. O-rings are a far superior design when compared to flat or gasket seals, but we still offer other options such as ASME Flanges and NPT Ports.
We also like to include differential pressure gauges on our filter housings so that users know when to change filter elements.
What types and models are available from your bag filter housing manufacturer?
Our standard Bag Filter Housings are made in number 2 and number 4 Type Industrial Bag Filters, which are 7″ in diameter by 32″ in length and 4″ in diameter by 12″ in length, respectively.
We specialize in cartridge and bag vessels for many different processes and kidney loop filtration applications.
Our primary cartridge filter housings range in size from 4″ in diameter by 20″ in length (the 420 series) to 6″ in diameter by 40″ (the 640 series) and come in of of several housing configuration options including single, dual, tri, quad, 6, 8, 12, and 18, all of which help to further optimize filtration performance.