IntroductionThe Serck Baker Hiperfilter has beenassociated with high efficiency filtrationfor more than 25 years. Now part of theNATCO range, the Hiperfilter SFXcontinues to set the standard.

The enviable reference list includes over200 projects for onshore, offshore, fixedand floating oil and gas productionplatforms, refineries, petrochemical plantsand potable water supply.

NATCO’s Hiperfilters, SFX, DFX and VFXcan be found working efficiently in Northand South America, Europe, the MiddleEast, Africa, India and the Far East.

High EfficiencyOffering high efficiency, deep multi-bedfiltration at very high filtration flux rates,NATCO’s Hiperfilter SFX are specificallydesigned to provide long, reliable serviceover a wide range of operatingconditions.

NATCO’s Hiperfilter SFX has beendesigned to meet and exceed thetheoretical efficiencies of an upflow filterwith the additional advantage of beingable to operate at much higher fluxes.The result is a more compact and robustunit.

Large grain size, low density upper mediais combined with a small grain size,density lower media to give true “indepth” filtration.

NATCO’s Hiperfilter SFX triple media filteroffers all the benefits of the Hiperfilter SFXdual media filter, specifically forapplications with high solids loadings.

The design of the proprietary upper andlower distribution/collection systemseliminates filter dead spots and theproblems of mudballing, channelling,poor water/effluent quality and media

Hiperfilter SFX Multi-Media Filter

NATCO Hiperfilter high efficiency, deep multi-bed filtration athigh flux rates.

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loss, often found in lesser designs.Because of the flexibility within the designof the filters, the units can be configuredto achieve water qualities with removalefficiency of up to 98% at 2µm.

Low Operating Costs and a SaferWorking EnvironmentBecause of the inherent reliability andefficiency of NATCO’s Hiperfilter SFX,chemical requirements are minimized,downtime is reduced and a low level ofoperator assistance is needed. Thissubstantially reduces overall operatingcosts and offers a safer workingenvironment.

Lightweight Media FiltersNATCO’s Hiperfilter SFX give a 30% plusweight saving over conventional filtersand are designed for applications wherespace and weight are at a premium, suchas offshore platforms.

The Hiperfilter SFX Lightweight mediafilter design can be offered on newapplications and can also be utilised toupgrade existing installations whereincreased capacity is required, without theaddition of further vessels.

Oily Water TreatmentWhere produced water is to be treatedonshore, for reinjection into the oilreservoir or where the water is to bedisposed of into an environmentallysensitive area, the Hiperfilter SFX can beused for polishing. NATCO has a largenumber of such units in operationachieving free oil levels of below 5ppm atthe outlet.

Alternatively NATCO’s PowerCleanNutshell filter can be considered for thisduty (see separate brochure).

Hiperfilter SFX Multi-Media Filter

NATCO Hiperfilter SFX Media Filter

Backwashing Sequence

MANWAY

ANTHRACITE

FINE GARNET

COARSE GARNET

CONCRETE SUBFILL

INLET

INLET DISTRIBUTORS

DRAIN DOWN

COLLECTOR SYSTEM

OUTLET

ON LINE DRAIN DOWN AIR SCOURAIR

AIR

SLOW BACKWASH

HIGH BACKWASH SETTLE PRE-SERVE FLUSH ON LINE

NATCO’s standard cleaning sequence is a ‘twice through’ programme, that ensures the filter bed is returned to it’s true clean condition. The backwashing sequence is precision controlled by an NATCO programmed PLC

Few multi-media filters offer the performance and reliability of NATCO’s filters.Only filter media carefully selected to meet NATCO’s exacting specifications is used.

Hiperfilter SFX Multi-Media Filter

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Flexible ConfigurationsOn large capacity applications, typicallyover 300,000 bpd, approximately2,000m3/hr, where large banks of verticalfilters would be impractical, horizontalfilters are available. Engineered on thesame principles, high standards andefficiencies of NATCO’s vertical filters,

horizontal filters offer the customer aflexibility in configuration to meet theirspecific needs.

A Choice of MaterialsNATCO filters are available in a widerange of materials. For example, vesselinternals can be manufactured from 316L

and Super Duplex Stainless Steel,Titanium or 254 6Mo, making themideally suited for the harshest ofenvironments.

Axsia’s filter applications include:

Seawater Water Injection River or Aquifer Injection Potable Water SidestreamFiltration

Process Water Refinery or Industrial Wastewater Produced Water

NATCO Group Head OfficeHouston, USATel: +(1) 713 683 9292Email: sales@natco-us.com

NATCO CanadaCalgary, CanadaTel: +(1) 403 236 1850Email: sales@natco.ab.ca

Scomi NATCO JVKuala Lumpur, MalaysiaTel: +(60) 32080 5080Email: sales@natcosea.com

Axsia GroupGloucester, EnglandTel: +(44) 1452 833800Email: asbl@axsia.com

Axsia HowmarCamberley, EnglandTel: +(44) 1276 681101Email: ahl@axsia.com

www.natcogroup.com

For more information on the NATCO Hiperfilter SFX or other NATCO Group products contact: