8/11/2019 06-41 Multipur AP En

1/2

www.bwt.dewww.bwt.dewww.bwt.dewww.bwt.dewww.bwt.de

Product data sheetProduct data sheetProduct data sheetProduct data sheetProduct data sheet

66666.41.41.41.41.41Multipur APMultipur APMultipur APMultipur APMultipur AP

Backwash filter with time and differential pressure controller DN 65 and DN 80Backwash filter with time and differential pressure controller DN 65 and DN 80Backwash filter with time and differential pressure controller DN 65 and DN 80Backwash filter with time and differential pressure controller DN 65 and DN 80Backwash filter with time and differential pressure controller DN 65 and DN 80

Multipur AP

Scope of delivScope of delivScope of delivScope of delivScope of deliverererereryyyyy

Backwash filter Multipur APMultipur APMultipur APMultipur APMultipur AP consisting of:Filter housing made of cast brassElectronic controller, differential pressure

generatorBackwash device with hydraulic drive and CICconnectionTransformer plugWastewater connection for HT pipe or waste-water connection for hose

(inside diameter 20 mm)Manometer

AccessoriesAccessoriesAccessoriesAccessoriesAccessories (not included in scope of delivery)Interlock cable for parallel operation of mul-tiple filters and CIC connection cable2 m with plug

Order no. 10908

Installation conditionsInstallation conditionsInstallation conditionsInstallation conditionsInstallation conditionsObserve all applicable installation regulations,general guidelines and technical specifica-tions.

The unit must be installed as described in theinstallation and operating instructions guide,in compliance with AVB Wasser V, Art. 12(general requirements for the supply of waterin Germany), by a water supply company or bya party registered in the water supplycompanys index of fitters.

The installation site must be protected against

frost and must ensure protection of the filteragainst solvent vapours, fuel oil, suds, acidiccleaning agents, chemicals of all types, directUV irradiation and heat sources over 40 C.

Intended useIntended useIntended useIntended useIntended use

Multipur backwash filters serve to protect wa-ter piping and all connected fittings, devices,works equipment, boiler systems, boilers, pro-

duction systems etc. against malfunctioningand damage caused by corrosion and impuri-ties.

The filters can also be used for the filtration ofwell, process, boiler feed, cooling and airconditioning water. Professional advice isProfessional advice isProfessional advice isProfessional advice isProfessional advice isrequired for this.required for this.required for this.required for this.required for this.

The filters are not suitable for oils, greases,solvents, soaps and other lubricating media.Water-soluble substances can also not beprecipitated out.

FunctionFunctionFunctionFunctionFunction

The untreated water flows into the Multipurthrough a filter element made of stainlesssteel. Impurities > 100 m or, respectively,

> 200 m are trapped. Depending on theirweight and size, these particles either falldirectly onto the lower section of the filterelement or cling to the filter element.

During backwashing, the closure elementopens up to the flushing water outlet. Thesuction ring segments of the backwashingelement move up and down and back againover the entire filter surface, vacuuming thefilter cloth with treated water at an extremelyhigh flow speed.

Backwashing takes place automatically afterthe preset backwash interval has elapsed.

The pressure difference between the untreatedwater inlet and the treated water outlet of thefilter is measured.The backwashing process is triggered prima-rily by differential pressure.If heavy soiling of the filter element causes thepressure difference to exceed the preset value(approx. 0.8 bar) within the preset backwashinterval, then the differential pressure genera-tor triggers a backwashing. The preset back-wash interval starts again.

The filter is equipped with a central instrumen-tation and control (CIC) connection (contactcloses in the event of malfunction or powerfailure).

8/11/2019 06-41 Multipur AP En

2/2

Pro

duc

tda

tash

ee

tsFilter

/BWTWassertec

hn

ikGm

bH/Printe

dinGermany

/Tec

hn

ica

lspec

ifica

tionsaresub

jec

ttoc

hange.

BWT Austria GmbH Walter-Simmer-Strasse A-5310 Mondsee Tel. +43 6232 / 5010 0 FAX +43 6232 / 4058BWT Austria GmbH Walter-Simmer-Strasse A-5310 Mondsee Tel. +43 6232 / 5010 0 FAX +43 6232 / 4058BWT Austria GmbH Walter-Simmer-Strasse A-5310 Mondsee Tel. +43 6232 / 5010 0 FAX +43 6232 / 4058BWT Austria GmbH Walter-Simmer-Strasse A-5310 Mondsee Tel. +43 6232 / 5010 0 FAX +43 6232 / 4058BWT Austria GmbH Walter-Simmer-Strasse A-5310 Mondsee Tel. +43 6232 / 5010 0 FAX +43 6232 / 4058

BWT Wassertechnik GmbH Industriestrasse D-69198 Schriesheim Tel.BWT Wassertechnik GmbH Industriestrasse D-69198 Schriesheim Tel.BWT Wassertechnik GmbH Industriestrasse D-69198 Schriesheim Tel.BWT Wassertechnik GmbH Industriestrasse D-69198 Schriesheim Tel.BWT Wassertechnik GmbH Industriestrasse D-69198 Schriesheim Tel.+43+43+43+43+43 6203 / 73 0 FAX6203 / 73 0 FAX6203 / 73 0 FAX6203 / 73 0 FAX6203 / 73 0 FAX +43+43+43+43+43 6203 / 73 1026203 / 73 1026203 / 73 1026203 / 73 1026203 / 73 102

Multipur APMultipur APMultipur APMultipur APMultipur AP ModelModelModelModelModel 6565656565 8080808080

Nominal connection width DN 65 80

Flow capacity at p = 0.2 bar m3/h 35 35

Flow capacity at p = 0.5 bar m3/h 58 58

Filtering effectiveness m 100 or, respectively, 200

Nominal pressure (PN) bar 10

Operating pressure pmin./max. bar 2.5/10

Minimum pressure after the filter (during backwashing) bar 2.5

Backwash water quantity (operating pressure 4 bar), approx. l 20

Flushing water flow approx. l/sec. / m3/h 1.4 / 5.0

Water temperature/ambient temperature C 5 - 30 / 5 - 40

Power supply V/Hz 230/50

Unit operation with protective low voltage V- 24

Max. power consumption W 12

Protection class IP 54

Flange connection compliant with DIN 2501, Part 1

Hole circle diameter / flange drill hole mm 145 / 18 160 / 18

L Installation length mm 220

H1/ H2/ H3 Height and installation height, approx. mm 340 / 290 / 420

Min. sewage system connection DN 50

Approx. operating weight kg 15 18Order no. 100 mOrder no. 100 mOrder no. 100 mOrder no. 100 mOrder no. 100 m 1018110181101811018110181 1018210182101821018210182

Order no. 200 mOrder no. 200 mOrder no. 200 mOrder no. 200 mOrder no. 200 m 1018310183101831018310183 1018410184101841018410184

TTTTTechnical specificationsechnical specificationsechnical specificationsechnical specificationsechnical specifications

50 50 50 50 50

HHHHH22222

HHHHH11111

LLLLL

HHHHH33333

DN 65DN 65DN 65DN 65DN 65

DN 80DN 80DN 80DN 80DN 80

Functional and warranty conditionsFunctional and warranty conditionsFunctional and warranty conditionsFunctional and warranty conditionsFunctional and warranty conditionsFilters require regular functional monitoring,maintenance and replacement of operatingparts at certain intervals. See the installationand operating instructions for the maintenanceintervals. We recommend that you enter into aservice agreement.

For electrical connection in a range of approx.1.2 m, a separate electrical socket (230V~/50Hz) is necessary. The supply of power mustbe permanently ensured. There should be novoltage spikes above 1 kV.

A coarse sediment collector must be installedupstream for water containing coarse sedi-ment particles > 2 mm.

To backwash, flushing water with a flow of atleast 1.4 l/sec. or 5 m3/h must be available.The available pressure may not fall below2.5 bar during the backwashing.

A connection to the sewage system (min.DN 50) must be available for draining theflushing water.

Avoid extreme water hammering.