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Sample Gas Filters
The distance between the extraction point of sample gas and the analyser cabinet is normally bridged by tubes or hoses in continuous emission monitoring (CEM) systems. Depending on the method of analysis (FDIR, HFID, hot wet analysis, total hydrocarbons, etc.), these gas lines can be unheated or must be heated to prevent unwanted condensate formation.
Due to the nature of such installations, additional in-line filtration is required.
Bühler offers a wide selection of unheated and heated filters specifically designed for gas sampling applications.
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Dry seals for compressors and turbines require clean, dry gas to maintain seal integrity and ensure longevity. Gas seal support systems as specified in API-614 require filters and sometimes water-removing coalescers to ensure gas quality to the seals.
For critical seal gas filtration, the ideal arrangement is to have “duplex” filters. In the duplex configuration, there is always one filter on-line filtering and/or “drying” the gas, even when the other filter element is being replaced.
Dry Seal Gas Duplex Filters meeting API-614:
• Reduce cost by eliminating expensive stainless steel fittings and assembly time. Compact design saves space
• Simple duplex housing arrangement reduces possibility for incorrect operation and potential for shutting off the dry gas seal flow
• Zero-leak integral transfer valve and double block valves provide assurance of tight shut off when replacing elements
• 316 stainless steel materials
• ASME code construction
• Available with coalescing (liquid removal) and filter (particulate removal) cartridges
• Designs to 2600 PSI
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WITT Gas Filters, some with condensation outlet, for pipelines and gas outlet points. For particles from 0.3 - 40 micron.
Advantages
- ultra fine filtering out of mechanical impurities through nickel chromium steel filter inserts
- broad range of uses - compatible with many technical gases (e.g. BAM approval for acetylene)
- change of filter possible while installed due to user-friendly design
- high flowrate thanks to flow maximising design
- condensate can be collected and removed using condensate drain (models 77 and 625)
- easy to install thanks to large choice of connections
- reliable filtering performance increases service life of downstream fittings and equipment
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M&C Universal Filters reliably separate solids, in particular extremely fine particles,occuring in analysis techniques in gas filtration, using very fine, deep-acting filter elements.Thanks to their universal design, the filters can also be used as separators (without a filter element), liquid filters or, with adsorption cartridges, as an adsorption filter. For ambient or medium emperatures up to 180 °C, a stainless steel version FSS or FT-H version can be offered. Heated filters up to 320°C are also available.
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New developments and improvements are constantly being made to increase the use of this clean burning, efficient fuel. Natural gas comes from underground, and thousands of kilometres of pipeline exists in Europe to transport the gas. Compressor stations located along the length of pipeline move the gas from the wellhead to consumer distribution points.
However, the raw gas from the ground requires processing and refining before it is ready fro use. The installation of Parker filters makes it possible to improve process efficiency and provide optimal process protection. The rigid, graded-density structure of Parker filter products efficiency removes solids and conaminants that would quickly plug competitive filters.
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Gas filter with polypropylene fleece filter pad (standard 50 µm) for cleaning gas and air, EC type tested and certified.
DN: 15 to 250,
connection: thread or flange,
pe: max. 1, 4 or 6 bar.
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The DRESSER®ROOTS® Style 351 Pipeline Strainer is designed to protect precision devices, such as regulation and metering equipment installed downstream of the strainer, from entrained system debris such as plastic shavings, fine particles of dirt, stones, gravel, rust, pipe scale and weld slag.
Check out these Style 351 product features:
- Low pressure drop is achieved through a large element area and venturi port design.
- The elements are interchangeable and consist of corrosion resistant stainless steel in 20 and 100 mesh configurations and back-up disc for long service life.
- The streamlined flow path is sealed with an elastomeric ring in the body bore which provides positive debris removal and prevents debris from traveling downstream.
- The debris bow! has sufficient volume to provide extended service intervals and is tapped for cleaning or valve attachment for blowdown.
- Available in threaded, flanged or weld end configurations.
- Ideally suited for natural gas and compressed air applications.
- May be installed in vertical or horizontal position.
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Filter for cleaning gases. The filter can be fitted with a filter insert of 2-150 µm. The body is fitted with a water and air bleeding screw.
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Next to a large variety of standard types, ROBU® produces many special designs also according to your specific requirements.
Round and rectangular discs of 450 x 450 mm and tubes up to 1.200 mm length are available.
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Description:
The Model FD-1500 Filter Dryer filters and de-hydrates supply gas for Flexflo™ Pilots. The FD-1500 Filter-Dryer provides superior filtration and dehydration with 110 square inches of 10 micron filtering media and 2.0 pounds of silica gel. The FD-1500 incorporates an easy-to-replace "spin on" cartridge made up of a high quality, high capacity nylon and fiberglass filter element reinforced with stainless steel mesh. All FD-1500's are fully Hydrotest to 2.5 times the working pressure to ensure the integrity of the pressure vessel. Final Filter Element.
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* Modular design provides optimum field flexibility and short manufacturing lead time - have it your way fast!
* Heavy duty carbon steel construction for long life - Module constructed of 7 gauge carbon steel. Door, hopper, inlet and panels are all 10 gauge steel.
* Baked on, durable alligator green powder coat paint - All carbon steel components are 5-stage acid washed prior to powder coating for maximum paint adhesion. Painted inside and outside for unsurpassed weather and corrosion resistance.
* Vertical design of the Farr filter cartridges provides more efficient pulsing of dust, thus eliminating uneven dust loading associated with horizontally mounted cartridges.
* High entry cross flow inlet eliminates upward can velocities associated with traditional hopper inlets. The channel baffles installed in the inlet protect the filters from incoming dust and separate the larger particles directly into the hopper, reducing the load on the filters.
* The Gold Series utilizes Gold Cone® cartridge technology to deliver clean air and long life while utilizing the smallest floor space of any dust collector available today.
* Multiple filter media and pleat spacing options are available to best suit your specific application and dust.
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Eliminating dust, oil, moisture, carbon monoxide and any other harmful particle, the MED make respirable the most difficult environments. Certified THIS Medical, these treatment units of the compressed air are composed of a drier by adsorption, filters and catalysts. They fontionnent starting from any electrical motor compressor and can feed to 15 people in respirable air in conformity with standard NF INTO 12021.
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-filter system for compressed air of the highest purity.
-Different filter stages – preliminary filter, microfilter and activated charcoal filter.
-Modular system for direct flanging.
-Six sizes with connecting threads from G 1/4 to G 2.
Compressed-air treatment for the most critical requirements
Cleaning of compressed air with standard filters is insufficient for many applications. For cases of this kind, the filter system V-M-A, available as single units or combinations, offers a wide range of filters to meet all requirements, from technical-clean air working equipment via process air to odour-free air for breathing.
Housing assembled from V-M-A modular system for direct flange mounting with sizes I and II. Two sizes of housing and 6 different sizes of filter element. Connecting threads from G1/4 to G2 in accordance with DIN-ISO 228. Housings and bowls are made of aluminium, plastic-coated or anodised, protected against corrosion, attractive appearance, easy to clean.
Differential pressure gauges. Indicates the pressure drop in filters. We recommend that the filter element is changed when the pressure drop exceeds 0,6 bar (red zone). Full exploitation of service life of filter saves money-timely replacement stops wastage of energy. Gauges can be fitted as desired to be readable from front or rear (double scale).
Filter elements. For every size of filter-three different elements of identical dimensions.
Fully automatic drain valve. Fitted as standard to pre-filters and micro-filters. Mounted outboard, easily accessible for maintenance. Minimum operating pressure 4 bar.
Manually-operated drain valve
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Vertical or Horizontal constructions mounted on legs or skirts.
Designed to international Pressure Vessel Codes and Standards.
These filters have multiple cartridges securely mounted with the vessel.
Cartridges offered can be of various types of construction depending on the application i.e. Pleated, wound or all metal construction.
Access to the internals can be via a Quick Opening Closure or Bolted Cover.
Flow passes through the cartridges in an in - to out flow direction.
We are able to offer elements that will accept a high differential pressure before mechanical damage can occur.
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The G•ONE can be used for water based coolants (emulsions) and straight oils for low to medium loads of oil-mist. It is not suitable for any smoke collection. Typical operations are:
• Driling
• Turning
• Miling
• CNC operations
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CNG Series
Single Tower Natural Gas Dryers
CNG Series adsorbers are single tower dryers designed to remove water vapor from Compressed Natural Gas in small to medium gas flow rates. Located at the inlet of the booster compressor, our unique binderless molecular sieve insures dry, pipeline quality gas (-80°F dew point or better) with minimal odorant fading.
Mobile, stationary and contracted regeneration packages available.
Single tower adsorption towers are an economical alternative to twin tower drying systems in CNG vehicular fueling stations which see intermittent or small gas flow rates (up to 300 scfm).
Down-flow design minimizes fluidization of the adsorbent insuring maximum life.
Optional Moisture Monitor & Alarm package for early performance degradation alert.
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Varian’s Gas Clean Filter System prevents contaminants entering your GC. Contaminants in carrier gas would result in damage to the column, loss of sensitivity, and unnecessary instrument downtime.
The Varian Gas Clean Filter System, which is positioned immediately before your GC, consists of two elements: the connecting unit and a filter. The uniquely designed filter and connecting unit allow for quick replacement of saturated filters while preventing air from entering your system.
Varian Gas Clean Filters are available for three different impurities; oxygen, moisture and hydrocarbons.
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To improve the operating efficiency of pneumatic equipment, Kadant Johnson air separators eliminate 99% of entrained contaminants including moisture, pipe scale, dirt and oil. When used on steam service, Johnson separators provide cleaner, drier steam to heat exchangers, steam turbines and other processing equipment that requires clean dry steam.
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This range of filters has been designed for use on machines for which excellent suctioned air filtration is essential. The filter cartridges are of such dimensions as to assure the stated capacity values with a minimum pressure drop; however, in the case of heavy-duty operations, we recommend that the capacity be calculated as being 2/3rds of that indicated. We can alter the “C” length for threaded attachment types, on request.
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Cartridge filters
Automatic compressed air cleaning filters
Bagging filters with polypropylene bags
Self-cleaning filters with closed-circuit storage of waste in collectors
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Cartridge Filter Systems, a revolutionary concept, changed the way filter systems performed. The usual limitations to the filtration efficiencies offered by conventional bag filter systems and the related maintenance problems suddenly vanished.
APPLICATIONS
Cartridge Filter Systems (CFS) have several applications:
- Dust collection, pneumatic conveying, central vacuum cleaning systems, etc.
- In the industries where cleanliness of high order is expected (e.g. clean room applications), CFSs are used in the dust collections and pneumatic conveying applications.
- In the tissue culture, aquaculture, pharmaceutical, chemical, pesticide, premium sugar, decorative laminates, printed circuit boards, diffusion labs, etc. the dust has to be eliminated and only CFSs meet the requirement.
- For powder coating paints - in their manufacturing or painting process - CFSs are very useful. After pulverizing in a mill the powder paint has to be removed and collected pneumatically, at the end of which a CFS can collect all the paint. Similarly, paint can be recovered efficiently in the painting process. A special benefit that CFSs offer is the quick change-over when the colour is to be changed.
- In the coated paper industry, where high quality paper is manufactured, presence of dust in the environment can be detrimental to the quality of the end product. Collection of dust from the buff rolls (cotton bowls) with cartridge filter systems prevents re-entrainment of the dust into the atmosphere
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NPF higher pressure cartridge filter
The NPF reverse jet tubular cartridge filters was developed for continuous operation in industrial process dust collection applications with a working vacuum up to 30,000 Pa. It is available in four convenient sizes.
Key features
• Typical airflow volumes from 2000 to 7500 m3/h.
• High efficiency exceeds 99.93% in normal applications
• Robust weatherproof bolted construction
• Galvanized body and hopper for long life
• ATEX compliant for explosive dusts in categories St1, St2 and St3
• Quick release galvanized steel waste bin
• Easy servicing from unit front
Typical dust control and process applications
• Centralised solution for welding stations
• Metal cutting operations, eg. plasma cutting
• Serving processes with long or small diameter ducting
• Multiple work stations served by flexible arms with focused hoods
• Dust extraction for all dry free flowing powders and granular material
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A philosophy of quality manufacturing and innovative design has made Kemp a leader in engineered solutions for air, gas and liquid drying/separation. Let us put our 130 years of engineering and manufacturing experience to work for your engineered application.
The quality and dependability built into Kemp custom engineered equipment is backed by a local factory trained service network and our experienced factory customer service team.
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Leading technology in cold regenerated dryers (Series ecodry), heat regenerated adsorption dryers (Series concept) and also in breathing air purification technology (Series breathing star, according AS2299, ANSI Z or if maximum quality is required, according to PHARMACOPÈE EUROPÈNNE). For compressed air and technical gases.
Units available up to 350 bar ü/ 5000 psig (standard), other pressures on request.
Other applications? Talk to us! 0049 2054-934-0 Mr. Christian Ruff
Standard equipment high efficient heatless dryers:
Complete purification system consisting
ZANDER-Microfilter, series XP as prefilter
Fully automatic ZANDER adsorption dryer
with intelligence-multitronic-control device.
Standard equipment heat regenerated dryers:
Fully automatic operating adsorption dryer with externally heated regeneration air with electrical heater.
Patented vacuum regeneration, without purge air.
Compl. with maintenance free four-way valve.
Processor-control, desiccant-filling.
Inlet and outlet piping zinc galvanized.
Vessels acc. to PED seperate approval/CE-standard.
Flange connections acc. to DIN 2633.
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Separators, fine and superfine filtration technology for removal of liquid (e.g. water or oil) and solid
particles down to 1µ from compressed air and gases.
Efficiency at normal capacity: 99,9999% (1µ).
Residual oil content: ≤ 0,5 mg/m3 (1 bar (abs.), 20°C).
Recommended temperature range: 1,5°C - 80°C.
Standard equipment: Complete filter including automatic condensate drain.
CE mark in accordance with the Pressure Equipment Directive97/23/EC (PED) for Fluid Group 2. No CE mark is authorised under Article 3 paragraph 3 for smaller filters or CE mark in accordance with Article 1 paragraph 3.3.
Filters suitable for Fluid Group 1 see page 20.
As an option available DELTATRONIC filter monitoring. Real messurement of filter status incl. software to minimize the operating cost in relation to the differential pressure of each Filter.
Also available:
-Paint compatible filters
-High pressure filters (up to 350 bar ü / 5000 psig)
-Stainless steal filters
-Vent filters
-Filter silencer
-Activated charcoal filter elements
-Sterile- and steam filters
-Filter elements for competitor housings
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FEATURES
- Cast Construction
- High Efficiency Over Wide Flow Range
- No Required Maintenance
- Economical Choice for Most Applications
- Removes 99% of Liquid and Solid Entrainment
Particles Larger Than 10 Micron
- Gas, Steam or Air Applications
OPTIONS
- Integral Trap
- Trap Heating Element
- ASME UM or U Code Stamp
- Water Gauge Tap
- Thermometer Tap
- Larger Drain Size
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Headline produces an extensive range of filters for instrumentation and analysis applications. We have solutions for in-line, particulate and coalescing, and bypass or fast loop. All housings offer high flow rates and fast response times.
Housings are available in a variety of materials, 316L Stainless Steel, Aluminium, PFTE, PVDF, Nylon, and Polypropylene, as well a range of exotic materials such as Hasteloy, Monel, and Titanium. Sizes range from 1/2" to 2", with pressures to 700 Bar.
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Due to the star-shaped pleat of the filtering material, it is possible to have a large filtering surface in a small volume. It is used to obtain high separating degrees, even with super-fine dusts.
Uses: dedusting - finishing after bag or pocket filter - purification of compressor room....
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Separators
Used to remove condensate and/or suspension droplets, as well as other impure substances in installations of steam, compressed air or other gases.
Moisture separators allow dry steam and compressed air, avoiding or preventing the wear of tools and pneumatic equipment, respectively.
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Vacuum pumps are used in a variety of applications from manufacturing processes to medical devices. In general, a vacuum pump provides high quality, reliable performance and is a low maintenance piece of equipment. Vacuum pumps convert mechanical energy into pneumatic energy by evacuating the air contained within a system. They use the same pumping mechanism as air compressors except that the unit is installed so that the air is drawn from a closed volume and Exhausted to the atmosphere.
In a compressed air system the compressor inlet is usually at atmospheric pressure, whereas in a vacuum system, the outlet is at atmospheric pressure.
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