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Radial fans of plastic material – direct drive
explosion-proof

Mietzsch

Lufttechnik - Series VRE / W

Object:

Permitted for EX-Categorie according to EU-guideline 94/9/EG (ATEX) :

Impeller optionally of PVC / PPs welded / FRP laminated or
electrically conductive plastic (PVCX,PPsX) welded
with balancing quality G 6.3 according to ISO 1940, fly-mounted on a shaft

Spiral casing optionally of PVC / PPs or electrically conductive plastic (PVCX,PPsX)
sucking on one side, with condensate drain
Shaft seal: without seal / GD-technical gastight

Direct drive with

EX-motor

outside the flow conveyed

Protection:

EEXe II

- increased safety

EEXde II - flameproof enclosure

Direct drive by

standard motor

(no EX-protection) outside the flow conveyed

Design in single-phase / three-phase / pole-changing

Motor protection: no / thermistor (TS)

Robust base,welded, for location of fan and motor
Corrosion protection: zinc-coated / painted , vibration absorbers included

Safety aquipment according to VDMA 24 167

VRE

_ _ _

/

_ _ _

W

_ _ _ _ - _ _ - _ _ - _ _ _ _ - _ _ _ _

Nominal size
Impeller type
Nominal speed
Special version
Housing position / direction of rotation
Material casing / impeller

Volumetric flow

: __________________ m

3

/h

Total pressure increase : __________________ Pa
Temperature of medium : __________________ °C
Ambient temperature

: __________________ °C

Motor power

: __________________ kW

Voltage / Frequency

: __________________ V ____ Hz

Rated motor currant

: __________________ A

Fan speed

: __________________ rpm

Sound level L

A3m

: __________________ dB(A)

Weight

: __________________

kg

Media / use:

Special accessories and special equipment

Connection suction side: ELA-elastic (circular) / KOF-compensator with flange (circular)

Connection pressure side: ELA-elastic / KOF-compensator with flange

Condensate drain: drilling with cap / neck with cap or fitting

Shutter guard: PVC-foil / PVC-foil with wire screen

Weather guard for motor

Cleaning opening

Repair switch: single / mounted, 3-poles with auxiliary contact, standard / explosion-proof

Motor protection switch: single / mounted, standard / explosion-proof

Other accessories

specification

no. quantity

individual

price
EUR

Total
price

EUR

s_vre_

w

_e

x (

0

7/

0

5)

Location in

category

relation to the fan

gas area 1

gas area 2

no EX-area

inside

II 2G c IIB+H2 T3

II 3G c IIB+H2 T3

no

outside

II 2G c IIB+H2 T3

II 3G c IIB+H2 T3

no

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Содержание VRE 100 Series

Страница 1: ...Issue 09 06 GmbH Lufttechnik Dresden USER INFORMATION RADIAL FANS RADIAL FANS SERIES VRE 100 560 direct driven ...

Страница 2: ...GfK electrically conductive plastic High efficiency and little noise emission Volumetric flow up to 36 000 m3 h Pressure increase up to 3 300 Pa Capacity gradation by nine sizes and two versions Housing positions left and right L and R Explosion proof versions according to European Directive 94 9 EG ATEX Varied casing connectors Many electrical and ventilation accessories Radial fans of plastic ma...

Страница 3: ...high demands electrically conductive plastic material explosion proof fans Casing The casings are made of deep drawn half shells sizes 100 250 made of PVC or PPs or even side walls and a jacket which are tightly welded The connection diameter on the suction side is in any case identical with the nominal size of the fan The casing can be opened on the suction side for cleaning A condensate drain ha...

Страница 4: ...al fans VRE with standard design have vanes in far end arrangement and formed on the rear hub protection cap This means permanent intake of external air through the minimized gap of the shaft lead through if pressure loss on suction end is greater that one third of total pressure loss This is the reason why components with high pressure losses such as washers filters separators etc should be arran...

Страница 5: ... zone 0 is not possible Gases of explosion group IIC hydrogen excluded gases with ignition temperature below 200 C and combustible dusts are likewise impermissible Classification generally differentiates between inside medium conveyed and outside surrounding Every zone of hazard requires its special design Explosion proof electrical devices motors switches etc and electrically conductive materials...

Страница 6: ...anged on an enveloping surface around the fan Conversion to the specified level at 3 meters is calculated from L3m Lvalue measuredt 20 log rm 3m dB EXPLANATION OF TYPE DESIGNATIONS VRE 250 731 W 1450 TS GD 090 L PE PPs Fan radial one suction side Nominal size inlet diameter mm Impeller type 731 curved backward 734 curved forward special disigns of impeller types Direct drive Nominal speed rpm high...

Страница 7: ...0 300 200 500 50 30 450 500 560 SURVEY OF TYPES PRESELECTION VRE 731 impeller with backward curved vanes direction of rotation left VRE 734 impeller with forward curved vanes direction of rotation left 07 MIETZSCH GmbH Lufttechnik Dresden Großenhainer Str 137 01129 Dresden Fax 0351 8 58 00 74 http www mietzsch de All fans are available in direction of rotation L left und R right and in 6 different...

Страница 8: ... range fan can be operated beyond characteristic specified parallel connection possible series connection after consultation with the manufacturers Design features welded impeller with 8 vanes curved backward casing deep drawn for PVC or PPs welded for special materials motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connectors o...

Страница 9: ...ded for special materials motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connectors of casing power nom motor nom motor weight fan type speed required power current with motor LA3m LWA rpm kW kW A kg dB A dB A 63 125 250 500 1000 2000 4000 8000 VRE 100 734W1450 1450 0 024 0 12 0 42 10 45 61 42 56 56 53 56 47 39 23 VRE 100 734W29...

Страница 10: ...or Ex upon inquiry Working range stable regime in entire characteristic range fan can be operated beyond characteristic specified parallel connection possible series connection after consultation with the manufacturers Design features welded impeller with 8 vanes curved backward casing deep drawn for PVC or PPs welded for special materials motor outside the flow conveyed robust sheet metal base zi...

Страница 11: ...ide the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connectors of casing power nom motor nom motor weight fan type speed required power current with motor LA3m LWA rpm kW kW A kg dB A dB A 63 125 250 500 1000 2000 4000 8000 VRE 160 734W950 950 0 08 0 09 0 44 18 44 62 43 51 51 59 55 51 40 26 VRE 160 734W1450 1450 0 25 0 25 0 76 19 52 69 54 59 5...

Страница 12: ...etal base zinc coated vibration absorbers in range of delivery variant connectors of casing power nom motor nom motor weight fan type speed required power current with motor LA3m LWA rpm kW kW A kg dB A dB A 63 125 250 500 1000 2000 4000 8000 VRE 200 731W710 710 0 016 0 09 0 36 26 40 57 44 49 49 52 49 43 31 22 VRE 200 731W950 950 0 036 0 09 0 55 24 45 63 46 54 54 56 57 54 41 25 VRE 200 731W1450 14...

Страница 13: ...etal base zinc coated vibration absorbers in range of delivery variant connectors of casing power nom motor nom motor weight fan type speed required power current with motor LA3m LWA rpm kW kW A kg dB A dB A 63 125 250 500 1000 2000 4000 8000 VRE 200 734W710 710 0 1 0 12 0 51 32 45 62 48 53 54 57 53 49 56 33 VRE 200 734W950 950 0 2 0 25 0 78 32 50 67 51 56 59 64 58 53 46 35 VRE 200 734W1450 1450 0...

Страница 14: ...e zinc coated vibration absorbers in range of delivery variant connectors of casing power nom motor nom motor weight fan type speed required power current with motor LA3m LWA rpm kW kW A kg dB A dB A 63 125 250 500 1000 2000 4000 8000 VRE250 731W710 710 0 05 0 09 0 36 35 42 59 44 53 50 55 52 44 30 21 VRE250 731W950 950 0 11 0 18 0 62 36 47 64 50 55 56 57 60 53 46 28 VRE250 731W1450 1450 0 37 0 37 ...

Страница 15: ...the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connectors of casing power nom motor nom motor weight fan type speed required power current with motor LA3m LWA rpm kW kW A kg dB A dB A 63 125 250 500 1000 2000 4000 8000 VRE 250 734W710 710 0 3 0 37 1 13 43 48 65 50 55 57 64 54 51 47 33 VRE 250 734W950 950 0 73 0 75 2 1 45 53 70 55 58 63 68 58 ...

Страница 16: ...n be operated beyond characteristic specified parallel connection possible series connection after consultation with the manufacturers Design features welded impeller with 8 vanes curved backward speed 2900rpm with FRP impeller welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connectors of casing power nom mot...

Страница 17: ...upon inquiry Working range stable regime in entire characteristic range operation with larger volumetric flows may lead to motor parallel and series connection possible after consultation with the manufacturers Design features welded impeller with 35 vanes curved forward welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of deliver...

Страница 18: ...uiry Working range stable regime in entire characteristic range fan can be operated beyond characteristic specified parallel connection possible series connection after consultation with the manufacturers Design features welded impeller with 8 vanes curved backward welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery vari...

Страница 19: ...on inquiry Working range stable regime in entire characteristic range operation with larger volumetric flows may lead to motor parallel and series connection possible after consultation with the manufacturers Design features welded impeller with 35 vanes curved forward welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery ...

Страница 20: ...haracteristic range fan can be operated beyond characteristic specified parallel connection possible series connection after consultation with the manufacturers Design features welded impeller with 8 vanes curved backward speed 1450rpm with FRP impeller welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connecto...

Страница 21: ...polechanging or Ex upon inquiry Working range stable regime in entire characteristic range operation with larger volumetric flows may lead to motor parallel and series connection possible after consultation with the manufacturers Design features welded impeller with 35 vanes curved forward welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers ...

Страница 22: ...haracteristic range fan can be operated beyond characteristic specified parallel connection possible series connection after consultation with the manufacturers Design features welded impeller with 8 vanes curved backward speed 1450rpm with FRP impeller welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connecto...

Страница 23: ...olechanging or Ex upon inquiry Working range stable regime in entire characteristic range operation with larger volumetric flows may lead to motor parallel and series connection possible after consultation with the manufacturers Design features welded impeller with 35 vanes curved forward welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers i...

Страница 24: ... characteristic range fan can be operated beyond characteristic specified parallel connection possible series connection after consultation with the manufacturers Design features welded impeller with 8 vanes curved backward speed 1450rpm with FRP impeller welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers in range of delivery variant connec...

Страница 25: ...polechanging or Ex upon inquiry Working range stable regime in entire characteristic range operation with larger volumetric flows may lead to motor parallel and series connection possible after consultation with the manufacturers Design features welded impeller with 35 vanes curved forward welded spiral casing motor outside the flow conveyed robust sheet metal base zinc coated vibration absorbers ...

Страница 26: ...ch as F2 KOF2 L1 I2 and I3 are functional dimensions applying to the corresponding casing connection In the case of KOF for instance the distance fan axis flange amounts to c I2 or g5 I2 MAIN DIMENSIONS Casings of sizes 100 250 made of PVC or PPs consist of two deep drawn half shells welded together The dimension sketch shows housing position 090R For other positions the manufacturers turn the cas...

Страница 27: ... MIETZSCH CD Housing position 090R 1 Flanges round and frames rectangular are made according to MIETZSCH standard MWS 53030 Drilling pattern 0 undrilled such as FO KOFO 1 drilled according to series 1 for normal applications such as KOF1 2 drilled according to series 2 double number of screws for high pressures and large quantities of condensate such as F2 KOF2 l and h are functional dimensions ap...

Страница 28: ... closing cap are elements of the standard range of delivery Other versions have to be ordered separately Drawings in format dxf MIETZSCH CD Housing position 090R 1 Flanges round and frames rectangular are made according to MIETZSCH standard MWS 53030 Drilling pattern 0 undrilled such as FO KOFO 1 drilled according to series 1 for normal applications such as KOF1 2 drilled according to series 2 dou...

Страница 29: ...rd versions of motors are of IP 54 which means protection against splash water from all directions In the case of outdoor arrangement an additional guard against all atmospheric influences should be used How to order WS weather guard Cleaning opening Cleaning of the impeller requires the fan to be taken out of the plant and the intake socket to be opened An additional cleaning opening see picture ...

Страница 30: ... motors are equipped with switches with explosion protection EEX de IICT6 according to ATEX Frequency inverter FU 0 18 15 0 A31 The inverter FU A31 permits many simple control and regulation problems to be solved in a very convenient way if its numerous functions are utilized and some additional components added On this basis MIETZSCH supply individual applications such as speed setting by means o...

Страница 31: ...tion of rotation Material casing impeller Volumetric flow __________________ m3 h Total pressure increase __________________ Pa Temperature of medium __________________ C Motor power __________________ kW Voltage Frequency __________________ V ____ Hz Rated motor currant __________________ A Fan speed __________________ rpm Sound level LA3m __________________ dB A Weight __________________ kg Medi...

Страница 32: ...eed Special version Housing position direction of rotation Material casing impeller Volumetric flow __________________ m3 h Total pressure increase __________________ Pa Temperature of medium __________________ C Ambient temperature __________________ C Motor power __________________ kW Voltage Frequency __________________ V ____ Hz Rated motor currant __________________ A Fan speed ______________...

Страница 33: ...radial fan VRE 500 standard design fan made of PVDF for extreme chemical demands fan with base made of plastic installation on tanks os scrubbers special design GAB ...

Страница 34: ...ts of plastic material PVC GFRP PP GFRP Controlling and regulating elements and systems Switches motor protection devices speed controllers frequency inverter fan controls flow supervision Special designs of plastic materials Devices linings etc Engineering performances Ventilation components of plastic material Pipes ducts fittings flaps gas tight shutoff flaps exhaust air heads deflector hoods e...

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