GmbH Lufttechnik Dresden. User information RADIAL FAN SERIES VRE direct-driven. Edition 11/17

Transcription

1 GmbH Lufttechnik Dresden User information RADIAL FAN SERIES VRE 0 direct-driven Edition 11/17

2 series VRE 0 direct-driven For use in all areas of ventilation technology High chemical resistance through use of plastics (PVC, PPs, PE, PVDF, GFRP, electrically conductive plastics) High efficiency and low noise emission Volumetric flow rate Pressure increase up to 145,000 m3/h up to 6, Pa Performance scaling using 14 sizes and 4 impeller types Casing position L and R Explosion protected models in accordance with Directive 2014/34/EU (ATEX) Versatile casing connections Extensive range of ventilation and electrical accessories We reserve the right to change the technical data in this brochure without notice The data are binding only after written confirmation from the manufacturer

3 Series VRE direct-driven Technical explanation Base Intake connector Impeller Motor Flexible connection with tightening strap Hub protection cap Impeller fastener Motor mount Adaptor ring Condensate drain Casing Vibration isolators APPLICATION Radial fans of the series VRE have a high corrosion resistance thanks to their use of high-grade plastics and are thus preferred for applications such as fume extraction of process gases in the chemical/pharmaceutical industry as well as ventilation of laboratories, battery rooms, pickling baths, scrubbers, electroplating units and agricultural facilities, etc TECHNICAL DESCRIPTION The fans main components are the impeller, spiral casing, casing connections, base and drive motor The motor is directly flanged horizontally onto the base and is completely separate from the flow The impeller sits on the motor shaft and is driven directly Steel parts such as screws, hub and hub connection are protected from corrosion by means of plastic covers or, alternatively, resistant steel is used The aerodynamic placement of the fans is state of the art and thus achieves high efficiency, low noise emissions and high power density Every fan is delivered as a complete ready-to-use assembly unit Vibration isolators adjusted in size and numbers, elastic connections on the pressure and suction sides and a condensate well are included in the standard scope of delivery Design characteristics Impeller: To cover a large performance spectrum, there are four impeller versions: Type 731 with backward curved vanes Type 733 with backward curved vanes Type 734 with forward curved vanes Type 673 with backward curved vanes Special impellers are used for special applications For example, impellers with radially arranged vanes are advantageous if the medium to be conveyed contains strongly adhesive substances The impellers are manufactured using modern joining technologies; dynamic balancing takes place in accordance with ISO 19 Materials: PVC, PPs, PVDF, GFRP (for strict requirements), electrically conductive plastics (EX fans) Casing: The casings are welded together tightly using deep-drawn half shells (size 2 made of PVC or PPs) or straight side walls and a jacket The suction side connection diameter is always identical to the nominal size of the fan You can open the casing on the suction side for cleaning There is always a condensate drain at the lowest point The shaft passage is sealed sufficiently for many applications by means of the back side vanes on the impeller In case of higher sealing requirements, an additional seal is used on the impeller/casing (see SHAFT SEAL section p 04) In case of high security requirements splinter protection or additional GFRP reinforcement is necessary A wide range of casing connections is available for connecting ventilation ducts Caution! Connected system components must not exert any mechanical loads on the fan Materials: PVC, PPs, PP, PE, PVDF, GFRP (see special designs, p 66), Electrically conductive plastics PEX, PPsX, GFRPX (EX fans) Base: stable welded structure made of steel panels; galvanised or varnished depending on the size; can be supplied in stainless steel on request Motors: Standard motor: 3~V/Hz, protection level IP54, type B5 (in special cases B14 or B3) Single phase motors 2V/Hz, motors with special voltages and a different level of protection Pole-changing and explosion protected motors Motors with thermal winding protection (PTC thermistor) --> special design TS Motors with integrated frequency converter --> special design MFU 03

4 Series VRE direct-driven Technical explanation OPERATING CONDITIONS perm ambient temperature: - C C (for EX motors -20 C C ) perm temperature of medium: - C C Higher temperatures are only permissible for certain sizes, materials and rotation speeds and only after consultation with the manufacturer The materials used feature high resistance to many chemical substances Nevertheless, even plastic materials are susceptible to attack by certain chemical substances The following factors play a role here: Chemical composition and concentration of the conveyed medium Temperature and exposure time Mechanical load and residual tension from processing In many application fields, eg in laboratories, chemical stores, agricultural facilities and moisture-laden processes, good experience has been made with "standard materials" such as PVC or PPS, which can generally be used without problems Critical applications include process engineering fields such as surface finishing, pickling units, process exhaust air in microelectronics etc In order to select the most suitable material, the intended use of the fan and the type of medium must always be stated in requests for quotation or orders Media containing small amounts of dust particles can also be conveyed; however increased wear is to be expected Note regarding outdoor use: Avoid exposing the fan to intensive UV radiation Plan weather protection for the motor Consider ambient conditions when selecting materials Work area: The fans work stably in the entire area of the depicted characteristic Operation at lower flow rates is permissible but very uneconomical Use at higher flow rates may overload the motor (in particular with type 734) and must be avoided Parallel connection: always possible for type 731, but only in consultation with the manufacturer for type 734 Series connection: only permissible after consultation with the manufacture (increased casing pressure) SHAFT SEAL By default, the VRE radial fans are equipped with rear vanes mounted to the rear hub cap This ensures that outside air is constantly drawn in via the minimised gap on the shaft passage if the suction side loss of pressure is larger than 1/3 of the overall loss of pressure Hence, you should always try to arrange components with high losses of pressure such as washers, filters, eliminators etc before the fan, ie on the suction side Casing wall Impeller hub Sealing ring Mating surface Radial disc Genügt diese "Aerodynamische Gehäuseabdichtung" nicht, zb wenn die Gefahr besteht, dass bei Stillstand aggressives Gas austreten kann, so wird eine Wellendichtung eingesetzt Bei der Sonderausführung GD wird ein Dichtring mit einer axial wirkenden flexiblen Dichtlippe auf dem Nabenkörper befestigt Die in die Gehäusewand eingesetzte Gegenlauffläche besteht aus einem Werkstoff mit guten Gleiteigenschaften (Edelstahl oder zb bei Einwirkung von Salzsäure, Chromsäure, Flußsäure usw aus einem speziellen Kunststoff) Diese Dichtung wird bei hohen Forderungen an die Gasdichtheit und bei relativ trockener Abluft verwendet und zeichnet sich durch eine hohe Standfestigkeit aus In case of very high sealing requirements, in particular when there is a lot of humidity or condensate, there are various special seals such as sealing gas seals, labyrinth seals etc Please consult the manufacturer in relation to this SPECIAL DESIGNS and ACCESSORIES (for more information, see p 67 of this brochure) Cleaning hatch, splinter protection, weather protection for the motor, additional connections for condensate drain, stainless steel base, suction and blow out protection grids, Air conducting parts: Electric accessories: Pipes, ducts, arches, dampers, exhaust air hoods etc, pipe and splitter attenuators, Repair switch, motor protection switch, pole switch, complete fan controls, frequency converter (also with pressure and volumetric flow control); air-flow monitor 04

5 Series VRE direct-driven Technical explanation EXPLOSION PROTECTION Directive 2014/34/EU (ATEX) re-regulates explosion protection for non-electrical devices as of 29/03/2014 Aside from complying with design and safety regulations as per DIN EN and DIN EN 13463, the fan must be assigned to the respective protection type and be marked accordingly The manufacturer must provide proof of compliance Explosion hazard areas are found in the chemical industry, gasworks, coking plants, painting facilities, fuelling stations, sewage treatment plants, and laboratories, etc Requirements for an explosion are flammable substance (eg gas, dust) sufficient oxygen (air) source of ignition (sparks, fire, hot surfaces, electrostatic discharge) The following measures must be implemented in areas with a potential explosion hazard: An explosive atmosphere is prevented from developing Avoidance of sources of ignition Measures to weaken the deleterious effects of an explosion In many cases, an efficient and monitored ventilation system is sufficient to prevent the formation of an ignitable atmosphere and thus an explosion hazard The protection requirements for a fan are based on the probability of occurrence of an explosive atmosphere in the medium and/or the environment There are three types of explosion hazard zone: Occasional Zone 1 that are likely to occur 2 frequently Only rarely and Zone 2 During routine operation 3 briefly Which protection is required and the additional requirements to be observed is the responsibility of the system operator or the relevant supervisory authority This means that the customer's order must specify the protection the fan is to have The VRE fans are supplied for the following ignition protection types: Zone 1: Zone 2: Explosion hazard Continuous or long-term II 2G c IIB+H2 T3 II 3G c IIB+H2 T3 Hazard zone Avoidance of sources of ignition Category acc to ATEX Zone 0 that are very unlikely to 1 occur Temperature class T3 (ignition temperature of the gas > C ) Explosion group of gases IIB+H2 (IIA and H 2 included, but not IIC) Design safety Device category (3G = gases of zone 2) Device group II (use in the mining area not permitted) Use in Zone 0 is not possible as a matter of principle Gases of explosion group IIC (except hydrogen), gases with an ignition temperature below C as well as flammable dusts are also excluded In the rating, the internal (medium conveyed) and external (environment) areas are distinguished in general Depending on the hazard zone, certain design variants are prescribed Explosion protected devices (motors, switches etc) are used and electrically conductive plastics (preferably conductive and flame retardant polypropylene --> PPsX) Basically, this results in the following ratings: Hazard zone MIETZSCH Motor Impeller/casing inside outside Designation without converter with converter material Zone 2 Zone 2 Z2Z2 EEx e II EEx de not conductive Zone 2 none Z2Z3 EEx e II Standard not conductive Zone 1 Zone 1 Z1Z1 EEx e II EEx de conductive Zone 1 Zone 2 Z1Z2 EEx e II EEx de conductive Special requirements for operation on the frequency converter Motors with increased safety EEx e II are not approved for converter operation: Pressure-resistant encapsulated EEx de motors can run on the converter if they are equipped with special winding protection (special design TS15) If there is no EX zone on the outside and the fan meets certain design requirements, standard motors may also be used which can then also be operated with a converter 05

6 Series VRE direct-driven Technical explanation EXPLANATIONS REGARDING THE TYPE DESIGNATION VRE 2 / 731 W 14 - TS - GD - 0 L - PE/PPs Fan (radial, single-sided suction) Nominal size (suction diameter/mm) Impeller type curved backwards curved backwards curved forwards curved backwards (Other impeller types are also possible as a special design) Direct drive Rated speed rpm (higher speed for pole changing motors) Short designation of the special designs E = single-phase operation TS = with thermal winding protection (PTC thermistor) P1 = pole-changing motor with rpm halving (Dahlander) eg 1,4 P1 = 1,4/ rpm P2 = pole-changing motor with separate winding eg 1,4 P2 = 1,4/9 rpm (switch to next lower rpm) EX = with explosion protected motor EEx e II T3 EXde = with explosion protected motor EEx de IIC T4 ZiZo = ex protected fan for zone i=inside and o=outside eg Z1Z2 = inside zone 1 and outside zone 2 GD = gastight, shaft passage technically gastight GDS = high casing tightness with humid exhaust air DD = triangular motor fastening for converter operation at 3x2V (with mounted repair switch) Casing position/direction of rotation (when looking at intake socket) Material (casing/impeller) PERFORMANCE PARAMETERS All performance parameters are determined on MIETZSCH s test bench The setup complies with DIN EN ISO 51 The volumetric flow rate is measured with a measurement nozzle compliant with EN ISO 5167 For radial fans that are arranged in a plant in accordance with the directive, the total pressure difference p t p t = p td - p ts = ( p stat D + /2 * c D2 ) - ( p stat S + /2 * c S2 ) is used This figure corresponds to the total of all pressure losses from the fan that occur on the suction side (S) and on the pressure side (D) If the suctions and pressure joints are coextensive, the following applies: p t = p statd - p stats = p stat In practice, plant manufacturers often use a pressure difference that is reduced by the dynamic pressure Here, it is assumed that the dynamic pressure on the fan output cannot be used As for pressure fans, you can define the pressure difference for free outbound air flow p fa p fa = p t - /2 * c D 2 (The term static pressure difference is not correct for this variable) Duct sound power level L WA The measuring process for determining the channel sound power level is specified in DIN measurement of noise emitted by machines Evaluation takes place according to L WA =L measured value + * log ( /4*D 2 ) db D = diameter of the measuring line Sound pressure level L 3m Several measuring points are arranged on an enveloping surface around the fan The conversion to the specified 3 m level takes place according to L 3m =L measured value + 20 * log (r m /3m)dB 06

7 Series VRE direct-driven Technical explanation CASING POSITIONS (viewed from intake side) The position of the casing is specified at the plant and would require significant effort to change subsequently INSPECTION OPENING POSITION (viewed from intake side) For large fans and high pollution, maintenance work can be reduced by means of an additional inspection opening The position of the inspection opening in the intake side and/or drive side is always near the pressure side connection, whereas the position of the inspection opening in the casing jacket can be selected by specifying a degree in accordance with the casing position Possible positions of the cleaning hatch in the jacket of the casing 135 Position specified in degrees L 045L 0L 135L 1L 225L R 045R 0R 135R 1R 225R 07

8 Series VRE direct-driven Technical explanation TYPE OVERVIEW - PRESELECTION VRE 731 5, , , , ,0 U/min rpm 14 1,4 U/min rpm 9 U/min rpm U/min rpm Nenngröße Welded impeller with 8 backward curved vanes - Stable operation in the entire characteristic range - The fan can be operated outside of the specified characteristic range - Parallel connection is possible, series connection in consultation with the manufacture - Spiral casing - deep-drawn for models 2 - welded for special materials Bezugsdichte des Fördermediums = 12 1,2 kg/m³ 1, , , , , ,000, ,000, , , , ,1 0, ,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 40 4,0 50 5,0, ,0,0 0,0 VRE / 733 5, , , , ,0 U/min rpm 14 1,4 U/min rpm 9 U/min rpm U/min rpm Nenngröße Welded impeller with 12 backward curved vanes - Stable operation in the entire characteristic range - The fan can be operated outside of the specified characteristic range - Parallel connection is possible, series connection in consultation with the manufacture - Spiral casing - deep-drawn for models 2 - welded for special materials Bezugsdichte des Fördermediums = 1,2 12 kg/m³ 1, , , , , ,000, ,000, , , , ,1 0, ,3 04 0,4 0,5 05 1,0 2, ,0 40 4,0 50 5,0, ,0,0 0 V / m³/h 08

9 Series VRE direct-driven Technical explanation TYPE OVERVIEW - PRESELECTION VRE / 734 5, , , , ,0 U/min rpm 14 1,4 U/min rpm 9 9 U/min rpm U/min rpm Nenngröße Welded impeller with 35 forward curved vanes - Stable operation in the entire characteristic range - Operation outside of the characteristic range only in consultation with the manufacturer - Parallel connection is possible, series connection in consultation with the manufacturer - Spiral casing - deep-drawn for models 2 - welded for special materials Bezugsdichte des Fördermediums = 12 1,2 kg/m³ 1, , , , , ,000, ,000, ,02 0, , ,1 0, ,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 40 4,0 50 5,0, ,0,0 0 VRE / 673 5, , , , ,0 U/min rpm 14 1,4 U/min rpm 9 9 U/min rpm U/min rpm Nenngröße Welded impeller with 12 backward curved vanes - Stable operation in the entire characteristic range - The fan can be operated outside of the specified characteristic range - Parallel connection is possible, series connection in consultation with the manufacture - Spiral casing - deep-drawn for models 2 - welded for special materials Bezugsdichte des Fördermediums = 1,2 12 kg/m³ 1, , ,000 5, , ,000, ,000, ,02 0, , ,1 0,2 02 0,3 03 0,4 04 0,5 05 1,0 2, ,0 40 4,0 50 5,0, ,0,0 0 09

10 VRE Diagrams Impeller type 731 5, , , , ,6 U/min rpm 2,0 20 1, = 12 1,2 kg/m³ 002 0, , , ,2 03 0,3 04 0,4 0,5 05 1, , , , ,0 Impeller type 734 5, , , ,8 U/min rpm p / Pa t 0 1,000 2,0 20 1, , = 1,2 12kg/m³ 0, ,02 0, ,1 01 0, ,3 Impeller materials: 1, , , ,4 4 0, ,8 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK

11 VRE Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE /731W14 1, ) VRE /731W20 2, ) VRE /731W20 5,6 1) Level 2 4) VRE /734W14 1, ) VRE /734W20 2, Level 2 4) VRE /734W20 5,8 1) Level 2 4) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 11

12 VRE Technical data MAIN DIMENSIONS for drive power <= 0,55 kw Casing position 0R Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF Ø1 max Ø Ø1 max max max for drive power > 0,55 kw bis 2,2 kw Casing position 0R Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF Ø1 5 max 3 Ø Ø1 3 max max max VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -25SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI20 can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE-HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type -25 SF 72 M6 Ø27 4 Ø Type MFI 20 M6 M6 Ø36 Ø9 FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Flange F Hole pattern 1 Hole pattern xØ Ø1 Ø1 Ø1 4xØ7 Ø1 Ø1 Ø1 4xØ7 12

13 ON ON VRE Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC Ø Ø1 Casing material: PE, PEX, PP, PPsX, PVDF ABD 129 ABD 55 Ø1 Ø1 Ø1 F, welded R, welded ABS 135 KOR Ø1 Ø1 Ø1 SPS WS RS 5 Ø1 119 SPS Ø max17 Ø max17 1 Ø1 Ø1 5 RSF KOF Ø1 Ø1 KOF ELA + SPB Ø1 ELA + SPB Accessories WS RS Suction side casing connection Casing material: all USEG F KOF ELA + SPB Ø125Ø1 Ø1 Ø1 Ø1 Ø1 Ø1 Ø1 Condensate drain Casing material: all KSF KSV KSS 74 Ø5 Ø14 Ø75 Ø20 Ø20 Ø

14 VRE 1 Diagrams Impeller type 731 5, , , ,7 U/min rpm 5,4 54 3,8 38 p / Pa t 1, ,0 20 1, = 12 1,2 kg/m³ 1 1, , , , , ,1 01 0, ,3 0,4 04 0,5 05 1,0 20 2,0 Impeller type 734 5, , , ,9 U/min rpm 0 1,000 2,0 20 p / Pa t 1, = 1,2 12 kg/m³ 1 1, , , , ,02 0, ,1 02 0,2 03 0,3 04 0,4 05 0,5 Impeller materials: 1,0 V/m³/s PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK 14

15 VRE 1 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE 1/731W ) VRE 1/731W14 1, ) VRE 1/731W20 2, Level 2 4) VRE 1/731W20 5,7 1) Level 2 4) VRE 1/734W ) VRE 1/734W14 1, Level 2 4) VRE 1/734W20 2, Level 2 4) VRE 1/734W20 3,942 1) Level 2 4) VRE 1/673W ) VRE 1/673W14 1, ) VRE 1/673W20 2, Level 2 4) VRE 1/673W20 5,855 1) Level 2 4) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 15

16 VRE 1 Technical data MAIN DIMENSIONS for drive power <= 3,0 kw Casing position 0R Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF 141 max 5 Ø max max 5 Ø max Ø max17 Ø max17 Ø max17 Ø max for drive power > 3,0 kw bis 5,5 kw Casing position 0R Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -25SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI20 can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type -25 SF 72 M6 4 Ø27 Ø Type MFI 20 M6 Ø36 M6 Ø9 FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or designs are possible on request special 16 Frame R Flange F Hole pattern 1 Hole pattern xØ Ø1 Ø2 8xØ7 Ø Ø1 Ø2 16xØ xØ7 Ø

17 ON ON VRE 1 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF Ø2 Ø Ø2 Ø1 Ø1 Ø2 Ø1 Ø1 83 ABD F, welded ABS KOF ELA + SPB Ø2 Ø1 Ø2 Ø1 Ø1 ABD R, welded KOR RSF KOF ELA + SPB Accessories SPS WS RS 141 Ø1 179 SPS WS RS Ø max17 Ø max Suction side casing connection Casing material: all USEG F KOF ELA + SPB Condensate drain Casing material: all KSF KSV KSS Ø Ø246 Ø1Ø2 Ø2 Ø1 Ø2 Ø1 Ø1 Ø25 Ø5 Ø75 Ø25 Ø22 17

18 VRE Diagrams Impeller type 731 Impeller type 733 5, , , U/min rpm 4,3 43 5, , ,5 U/min rpm 4,3 43 2, , ,0 20 2, ,1 31 2,0 20 1, ,000 0 p / Pa t 1,4 14 1, = 12 1,2 kg/m³ 1 1, , , , , ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 2, ,0 4, = 12 1,2 kg/m³ 1, , , , , ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 2, ,0 40 4,0 Impeller type 734 Impeller type 673 5, , ,3 U/min rpm 4,7 47 3, , ,2 U/min rpm 2,0 20 3, , , 3 2, , ,000 p / Pa t p / Pa t 1,4 14 1, = 1,2 12kg/m³ 1, , , , , ,1 02 0,2 03 0,3 04 0,4 05 0,5 1,0 20 2,0 Impeller materials: = 12 1,2 kg/m³ 1, , , , , ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK 20 2,0

19 VRE Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE /731W ) VRE /731W ) VRE /731W14 1, Level 2 4) VRE /731W20 2, Level 2 4) VRE /731W20 5, 1) Level 2 4) VRE /733W ) VRE /733W ) VRE /733W14 1, Level 2 4) VRE /733W20 2, Level 2 4) VRE /733W20 5,5 1) Level 2 5) VRE /734W ) VRE /734W ) VRE /734W14 1, Level 2 4) VRE /734W20 2, Level 2 5) VRE /734W20 3,2 1) Level 2 5) VRE /673W ) VRE /673W14 1, Level 2 4) VRE /673W20 2, Level 2 4) VRE /673W20 5,3 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 19

20 VRE Technical data MAIN DIMENSIONS for drive power <= 4,0 kw Casing position 0R Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF 169 max 616 Ø max max max17 Ø 635 Ø 632 Ø 395 max Ø max for drive power > 4,0 kw bis 11 kw Casing position 0R Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF max max Ø VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -25SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI20 can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or designs are possible on request special 20 Frame R Flange F Type -25 SF 72 M6 4 Ø27 Ø Hole pattern 1 Hole pattern xØ Ø Ø xØ Ø2 Ø2 16xØ7 8xØ7 Type MFI 20 M6 M6 Ø36 Ø9 Ø Ø2

21 ON ON VRE Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC Ø3 Ø2 Casing material: PE, PEX, PP, PPsX, PVDF ABD 219 ABD 55 Ø2 Ø F, welded R, welded Ø ABS KOR 85 Ø2 Ø RSF 135 Ø2 Ø KOF Ø2 Ø KOF Ø ELA + SPB 1 Ø Ø 224 Ø SPS 1 WS RS max ELA + SPB Ø max Accessories SPS WS RS Suction side casing connection Casing material: all USEG F KOF ELA + SPB Ø3 Ø2 Ø315 Ø2 Ø Ø2 Ø Ø Condensate drain Casing material: all KSF KSV KSS 73 Ø5 Ø25 Ø14 Ø Ø25 Ø22 21

22 VRE 2 Diagrams Impeller type 731 Impeller type 733 5, ,2 U/min rpm 3, , ,4 34 2,0 20 2, 2 5, , , ,2 U/min rpm 3,4 34 2,0 20 2, ,000 1, ,4 14 1, = 1,2 12 kg/m³ 1, , , , , ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 20 2,0 3,0 4, , = 12 1,2 kg/m³ 1, , , , , ,0 01 0,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 20 2,0 3, ,0 50 Impeller type 734 Impeller type ,685 U/min rpm 5, , ,8 3, , ,4 U/min rpm 0 3, ,000 2,0 20 2, ,000 1, ,000 1, = 1,2 12 kg/m³ 1, , , , , ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 20 2,0 3, ,0 5,0 50 Impeller materials: = 1,2 12 kg/m³ 1, , , , , ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 2,0 20 3, ,0 5,0 50 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK

23 VRE 2 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE2/731W ) VRE2/731W ) VRE2/731W14 1, Level 2 4) VRE2/731W20 2, Level 2 4) VRE2/731W20 4,2 1) Level 2 5) VRE2/733W ) VRE2/733W ) VRE2/733W14 1, Level 2 4) VRE2/733W20 2, Level 2 5) VRE2/733W20 4,2 1) Level 2 5) VRE2/734W ) VRE2/734W Level 2 4) VRE2/734W14 1, Level 2 4) VRE2/734W14 2,4 1) Level 2 5) VRE2/673W ) VRE2/673W ) VRE2/673W14 1, Level 2 VRE2/673W20 2, Level 2 4) VRE2/673W20 4,685 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 23

24 VRE 2 Technical data MAIN DIMENSIONS for drive power <= 5,5 kw Casing position 0R Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF max 782 max Ø Casing material: PPs, PVC Casing material: PE, PEX, PP, PPsX, PVDF max 888 max Ø max21 4 max21 Ø2 7 Ø2 7 4 max21 4 max21 Ø2 7 Ø for drive power > 5,5 kw bis 15 kw Casing position 0R VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI20 / MFI can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type - SF Ø Ø7 M Type MFI 20 M6 / MFI M8 Ø36 Ø9 M6/M8 FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or designs are possible on request special 24 Frame R Flange F Hole pattern 1 Hole pattern Ø xø Ø320 Ø2 12xØ Ø2 Ø xØ Ø2 24xØ7 266

25 ON ON VRE 2 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC Ø395 Ø315 Casing material: PE, PEX, PP, PPsX, PVDF Ø320 Ø2 Ø2 6 ABD F, welded ABS Ø320 Ø2 ABD R, welded KOR RSF Ø320 Ø2 KOF 205 Ø320 Ø2 KOF 2 Ø2 4 max21 Ø1 125 Ø2 7 Ø Ø2 ELA + SPB 325 Ø2 ELA + SPB Accessories SPS WS RS 203 SPS WS ROE 236 RS max Ø Suction side casing connection Casing material: all USEG F KOF ELA + SPB Condensate drain Casing material: all KSF KSV KSS 66 Ø Ø2 Ø Ø320 Ø2 Ø320 Ø2 Ø2 Ø117 Ø32 78 Ø14 Ø85 Ø Ø22 25

26 VRE 315 Diagrams Impeller type 731 Impeller type 733 5, , ,3 U/min rpm 2,0 20 2, , , , ,225 U/min rpm 2,0 20 2, , , ,000 1,9 19 1, , ,000 1, = 12 1,2 kg/m³ 1, , , , ,000 00, ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 2, ,0 4,0 0 5,0 50 8, = 12 1,2 kg/m³ 1, , , , ,000 00, ,0 5,0 01 0,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 20 2,0 3, ,0 80 Impeller type 734 Impeller type 673 5, , , ,9 U/min rpm 5, , , ,575 U/min rpm 3,0 2,0 20 2, ,000 1, ,000 1, = 1,2 12 kg/m³ 1, , , , , , ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 2,0 20 3,0 30 4,0 0 5,0 50 8,0 80 Impeller materials: = 12 1,2 kg/m³ 01 0,1 02 0,2 03 0,3 04 0,4 05 0,5 1,0 2,0 20 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK 1, , , , , ,0 4, ,0 50

27 VRE 315 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE2/731W ) VRE2/731W ) VRE2/731W14 1, Level 2 4) VRE2/731W20 2, Level 2 4) VRE2/731W20 4,2 1) Level 2 5) VRE2/733W ) VRE2/733W ) VRE2/733W14 1, Level 2 4) VRE2/733W20 2, Level 2 5) VRE2/733W20 4,2 1) Level 2 5) VRE2/734W ) VRE2/734W Level 2 4) VRE2/734W14 1, Level 2 4) VRE2/734W14 2,4 1) Level 2 5) VRE2/673W ) VRE2/673W ) VRE2/673W14 1, Level 2 VRE2/673W20 2, Level 2 4) VRE2/673W20 4,685 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 27

28 VRE 315 Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF for drive power: <= 15 kw > 15 kw bis 22 kw max max Ø max Ø max VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type - SF Ø Ø7 M Type MFI M8 Ø36 Ø9 M8 FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R 3 22 Flange F Hole pattern 1 Hole pattern Ø xØ Ø Ø xØ Ø Ø3 Ø3 24xØ 12xØ 28

29 ON VRE 315 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF ABD R, welded KOR 256 Ø395 Ø315 RSF Ø395 Ø315 KOF 385 Ø315 ELA + SPB Suction side casing connection 375 Casing material: all USEG F KOF ELA + SPB Accessories SPS WS RS Ø492 Ø Ø Ø395 Ø315 Ø395 Ø315 Ø315 Ø315 Ø1 Ø1 ROE Condensate drain Casing material: all KSF KSV KSS Ø max21 Ø85 Ø117 Ø32 78 Ø32 85 Ø

30 VRE Diagrams Impeller type 731 Impeller type , , ,645 U/min rpm 2, , , , ,575 U/min rpm 2, ,000 1, , ,000 1,5 15 1, , , = 12 1,2 kg/m³ 1, , , , ,000 00,000 00, ,15 0, ,3 0,4 04 0,5 05 1,0 2, ,0 4,0 40 5,0 50 0,0 3 = 12 1,2 kg/m³ 1, , , , ,000 00,000 00, , ,2 03 0,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 40 4,0 5,0 50 0,0 Impeller type 734 Impeller type 673 5, , , ,8 U/min rpm 2, , , ,555 U/min rpm 1, , ,000 1, , , , = 12 1,2 kg/m³ 1, , , , ,000 00,000 00, , ,2 03 0,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 40 4,0 5,0 50,0 Impeller materials: 4 = 12 1,2 kg/m³ 1, , ,000 5, ,00000, ,1 02 0,2 03 0,3 04 0,4 0,5 05 1,0 2,0 20 3,0 30 4,0 0 5,0 50 8,0 80 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK

31 VRE Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE /731W ) VRE /731W Level 2 4) VRE /731W14 1, Level 2 4) VRE /731W14 2,645 1) Level 2 5) VRE /733W ) VRE /733W Level 2 4) VRE /733W14 1, Level 2 5) VRE /733W14 2,645 1) Level 2 5) VRE /734W Level 2 VRE /734W Level 2 5) VRE /734W14 1, Level 2 5) VRE /734W14 1,555 1) Level 2 5) VRE /673W ) VRE /673W Level 2 4) VRE /673W14 1, Level 2 4) VRE /673W14 2,8 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 31

32 VRE Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF for drive power: <= 15 kw > 15 kw bis 37 kw 284 max max max Ø max24 7 Ø VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI- M8 can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type - SF M8 Ø42 Ø9 M Type MFI M8 Ø36 Ø9 M8 FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Flange F Hole pattern 1 Hole pattern Ø Ø4 16xØ Ø444 12xØ Ø 22 24xØ Ø Ø444 24xØ

33 ON VRE Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF ABD 4 R, welded KOR Ø4 Ø Ø4 Ø RSF KOF Ø ELA + SPB Suction side casing connection Casing material: all USEG F KOF ELA + SPB Accessories SPS WS 3 3 RS 446 Ø620 Ø Ø6 Ø4 Ø Ø4 Ø Ø Condensate drain Casing material: all KSF KSV KSS Ø14 Ø 8 2x Ø1 ROE max Ø85 Ø117 Ø32 78 Ø32 85 Ø

34 VRE 4 Diagrams Impeller type 731 Impeller type 733 5, , ,3 U/min rpm 1, , , , ,2 U/min rpm 1, ,000 1,4 14 1, ,000 1,4 14 1, , , = 12 1,2 kg/m³ 0 1,000 2, ,000 5, ,000 00,000 00,000 00, ,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 4,0 40 5,0 50, ,0 3 = 12 1,2 kg/m³ 0 1, , ,000 5, , ,000,000 00, ,3 04 0,4 05 0,5 1,0 20 2,0 30 3,0 40 4,0 50 5,0, ,0 Impeller type 734 Impeller type 673 5, , , ,345 U/min rpm 2, , , ,385 U/min rpm 0 3, ,000 1,5 15 1, , , = 12 1,2 kg/m³ 1, , , , ,000 00,000 00, , ,2 03 0,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 40 4,0 5,0 50,0 0 Impeller materials: = 12 1,2 kg/m³ 1, , , , ,000 00,000 00, , ,2 03 0,3 04 0,4 0,5 05 1,0 2, ,0 4,0 40 5,0 50,0 0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK

35 VRE 4 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE 4/731W ) VRE 4/731W Level 2 4) VRE 4/731W14 1, Level 2 5) VRE 4/731W14 2,3 1) Level 2 5) VRE 4/733W ) VRE 4/733W Level 2 4) VRE 4/733W14 1, Level 2 5) VRE 4/733W14 2,2 1) Level 2 5) VRE 4/734W Level 2 VRE 4/734W Level 2 5) VRE 4/734W9 1,385 1) Level 2 5) VRE 4/673W Level 2 VRE 4/673W Level 2 4) VRE 4/673W14 1, Level 2 5) VRE 4/673W14 2,346 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 35

36 VRE 4 Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF for drive power: <= 15 kw > 15 kw bis 37 kw max max Ø max Ø max VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI- M8 can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type - SF M Ø42 Ø9 M Type MFI M8 Ø36 Ø9 M8 FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Flange F Hole pattern 1 Hole pattern Ø xØ Ø5 Ø Ø4 24xØ Ø5 Ø xØ 24xØ 36

37 ON VRE 4 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF ABD R, welded KOR Ø5 Ø RSF Ø5 Ø4 KOF Ø4 ELA + SPB Suction side casing connection Casing material: all USEG F KOF ELA + SPB Accessories SPS WS RS 2x Ø0 Ø5 Ø Ø5 Ø4 Ø5 Ø4 Ø4 Condensate drain Casing material: all KSF KSV KSS Ø14 Ø4 884 Ø1 ROE max Ø85 Ø117 Ø32 78 Ø32 85 Ø

38 VRE Diagrams Impeller type 731 Impeller type 733 5, , , ,115 U/min rpm 1,7 17 1,4 14 1, , , , ,000 2,2 rpm 1895 U/min 1, ,4 1, , , = 12 1,2 kg/m³ 1, , ,000 5, ,000 00,000 00,000 00, ,3 04 0,4 05 0,5 1,0 20 2,0 30 3,0 4,0 40 5,0 50, ,0 2 = 1,2 12 kg/m³ 0 1, , ,000 5, ,000 00,000 00,000 00, , ,4 0,5 05 1,0 20 2,0 30 3,0 4, ,0, ,0 Impeller type 734 Impeller type , ,000 5, ,0 U/min rpm 1, , , ,245 U/min rpm 0 3, ,000 1,4 14 1, , , = 12 1,2 kg/m³ 1, , , , ,000 00,000 00, ,15 0, ,3 0,4 04 0,5 05 1,0 2, ,0 40 4,0 5,0 50,0 Impeller materials: 38 = 12 1,2 kg/m³ 1, , , , ,000 00,000 00, , ,2 03 0,3 04 0,4 0,5 05 1,0 2, ,0 40 4,0 5,0 50,0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK

39 VRE Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE /731W ) VRE /731W Level 2 4) VRE /731W14 1, Level 2 5) VRE /731W14 2,115 1) Level 2 5) VRE /733W ) VRE /733W Level 2 5) VRE /733W14 1, Level 2 5) VRE /733W14 1,895 1) Level 2 5) VRE /734W Level 2 VRE /734W9 9 21, Level 2 5) VRE /734W9 1,245 1) Level 2 5) VRE /673W Level 2 VRE /673W Level 2 4) VRE /673W14 1, Level 2 5) VRE /673W14 2,0 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 39

40 VRE Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF for drive power: <= 15 kw > 15 kw bis 45 kw 1431 max max Ø max Ø max VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI- M8 can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type - SF M Ø42 Ø9 M Typ MFI M8 Ø36 Ø9 M8 FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Hole pattern 1 Hole pattern xØ Ø xØ Ø5 8 Flange F Ø Ø Ø544 12xØ Ø544 24xØ

41 ON VRE Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF ABD R, welded KOR Ø5 Ø RSF 6 Ø5 Ø KOF Ø ELA + SPB Suction side casing connection Casing material: all USEG F KOF ELA + SPB Accessories SPS WS RS x Ø7 Ø6 Ø0 Ø5 Ø Ø5 Ø Ø Ø Ø ROE 920 Condensate drain Casing material: all KSF KSV KSS Ø max24 Ø Ø1 88 Ø Ø 95 Ø

42 VRE 5 Diagrams Impeller type 731 Impeller type , , , ,8 U/min rpm 1, , , , ,000 18U/min 1,8 rpm 1,5 15 1, ,000 1, ,000 1, , ,000 5 = 12 1,2 kg/m³ 0 1,000 2, ,000 5, , ,000,000 00, ,3 04 0,4 0,5 05 1,0 20 2,0 3,0 30 4,0 40 5,0 50,0 0 20,0 0 2 = 12 1,2 kg/m³ 0 1, , ,000 5, , ,000,000 00, ,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 4, ,0,0 0 20,0 0 Impeller type 734 Impeller type ,045 U/min rpm 5, , , ,1 U/min rpm 9 0 5, , , ,000 1, ,4 14 1, , , = 12 1,2 kg/m³ 1, , , , ,000 00,000 00,000 00, ,3 04 0,4 0,5 05 1,0 20 2,0 30 3,0 40 4,0 5,0 50, ,0 Impeller materials: 42 = 12 1,2 kg/m³ 1, , , , ,000 00,000 00,000 00, ,3 04 0,4 0,5 05 1,0 20 2,0 3,0 30 4,0 40 5,0 50,0 0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK 20,0 0

43 VRE 5 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE 5/731W ) VRE 5/731W Level 2 5) VRE 5/731W14 1, Level 2 5) VRE 5/731W14 1,8 1) Level 2 5) VRE 5/733W ) VRE 5/733W Level 2 5) VRE 5/733W14 1, Level 2 5) VRE 5/733W14 1,8 1) Level 2 5) VRE 5/734W Level 2 VRE 5/734W Level 2 5) VRE 5/734W9 1,1 1) Level 2 5) VRE 5/673W Level 2 VRE 5/673W Level 2 5) VRE 5/673W14 1, Level 2 5) VRE 5/673W14 2,045 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 43

44 VRE 5 Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF for drive power: <= 15 kw > 15 kw bis 75 kw max max Ø max 5 max Ø VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type -SF that is designed for the size, speed and drive power of the fan Stainless steel spring insulators as eg type MFI120- M8 can be exploited on special demand if natural frequency and isolation effectiveness require particulary high demands on vibration isolation Due to the materials used ( stainless steel A2 and PE- HD) stainless steel spring insulators can be used in areas sensitive to corrosion and hygiene Type - SF M Ø95 M Ø53 Type MFI 120 M8 Ø M8 Ø FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Flansch F Hole pattern 1 Hole pattern Ø xØ 61 2 Ø6 Ø4 16xØ Ø xØ Ø6 Ø4 32xØ

45 ON VRE 5 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF ABD 5 5 R, welded Ø6 Ø5 135 KOR RSF Ø6 Ø5 KOF Ø5 ELA + SPB Suction side casing connection Casing material: all USEG F KOF ELA SPB Accessories SPS WS RS Ø888 Ø Ø0 Ø6 Ø5 Ø6 Ø5 Ø5 Ø5 x315 Ø225 ROE 1666 Condensate drain Casing material: all KSF KSV KSS Ø18 5 max Ø Ø1 88 Ø Ø 95 Ø

46 VRE 6 Diagrams Impeller type 731 Impeller type , , , ,6 U/min rpm 1,4 14 1, , , ,528 U/min rpm 1,4 14 1, , , , ,000 2 = 12 1,2 kg/m³ 2, , , ,000 00,000 00,000 00, , ,0 20 2,0 30 3,0 4, ,0, ,0,0 0, = 12 1,2 kg/m³ 0 2, , ,000 20, ,000, ,000, ,0 20 2,0 30 3,0 4, ,0 0, ,0 0,0,0 0 Impeller type , , , ,695 U/min rpm 1, ,4 14 1, ,000 Impeller materials: 46 2 = 12 1,2 kg/m³ 1, , , , ,000 00,000 00,000 00, ,3 04 0,4 05 0,5 1,0 20 2,0 30 3,0 4,0 40 5,0 50,0 0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK 20,0 0

47 VRE 6 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE 6/731W ) VRE 6/731W Level 2 5) VRE 6/731W14 1, Level 2 5) VRE 6/731W14 1,6 1) Level 2 5) VRE 6/733W ) VRE 6/733W Level 2 5) VRE 6/733W14 1, Level 2 5) VRE 6/733W14 1,528 1) Level 2 5) VRE 6/673W Level 2 VRE 6/673W Level 2 5) VRE 6/673W14 1, Level 2 5) VRE 6/673W14 1,695 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 47

48 VRE 6 Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PVC, PE, PP, PPsX, PEX, PVDF for drive power: <= 45kW > 45 kw bis 75 kw Ø6 Ø ) ) VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type SP775-M that is designed for the size, speed and drive power of the fan Type SP775-M Ø Ø M FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Frame R 6 5 Hole pattern 1 Hole pattern xØ x125 = xØ 34 4x75 = Models according to other standards or special designs are possible on request Flange F Ø6 Ø Ø674 16xØ Ø6 Ø Ø674 16xØ 48

49 ON VRE 6 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF ABD R, welded KOR Ø Ø6 Ø Ø6 Ø x315 8 ØØ0 Ø988 Ø6 Ø Ø Ø6 Ø Ø6 Ø6 135 RSF KOF Suction side casing connection Casing material: all USEG F KOF ELA + SPB Accessories SPS WS RS ELA + SPB ROE Condensate drain Casing material: all KSF KSV KSS Ø1 Ø Ø1 4xØ18 Ø Ø

50 VRE Diagrams Impeller type 731 Impeller type , , ,4 U/min rpm 1,4 14 1, , , ,3 U/min rpm 1, , , , ,000 2 = 1,2 12 kg/m³ 2, , , ,000 00,000 00,000 00, , ,0 20 2,0 30 3,0 4,0 40 5,0 50, ,0,0 0, = 12 1,2 kg/m³ 0 2, , ,000 20, ,000, , ,000 1,0 20 2,0 30 3,0 40 4,0 50 5,0 0, ,0 0,0,0 0 Impeller type , , , , ,695 U/min rpm 1,4 14 1, Impeller materials: 2 1, , , , ,000 00,000 00,000 00, ,3 04 0,4 05 0,5 1,0 20 2,0 30 3,0 4,0 40 5,0 50,0 0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK = 1,2 12kg/m³ 20,0 0

51 VRE Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE /731W ) VRE /731W Level 2 5) VRE /731W14 1, Level 2 5) VRE /731W14 1,4 1) Level 2 5) VRE /733W ) VRE /733W ) VRE /733W9 1,3 1) Level 2 5) VRE /673W Level 2 VRE /673W Level 2 5) VRE /673W14 1, Level 2 5) VRE /673W14 1,4 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 51

52 VRE Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PE, PPsX, PVC, PEX, PP, PVDF for drive power: <= 37kW > 37 kw bis kw Ø 1914 Ø VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type SP775-M that is designed for the size, speed and drive power of the fan Type SP775-M Ø Ø M FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Hole pattern 1 Hole pattern xØ xø Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Ø x75 = x75 = 20 Ø Flange F Ø Ø754 18xØ Ø Ø754 36xØ 52

53 ON VRE Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF Ø7 Ø ABD Suction side casing connection Casing material: all USEG F KOF ELA + SPB Accessories SPS WS RS x Ø7 Ø Ø RSF KOF ELA + SPB KORR R, welded KOR Ø0Ø1120 Ø14 Ø7 Ø Ø7 Ø Ø Ø Ø ROE 11 Condensate drain Casing material: all KSF KSV KSS Ø1 Ø 4 Ø1 4xØ18 Ø Ø

54 VRE 0 Diagrams Impeller type 731 Impeller type 733 5, , ,325 U/min rpm 1,0 9 5, , ,2 U/min rpm 1, , , , ,000 2 = 12 1,2 kg/m³ 2, ,000 5, ,000 00,000 00,000 00, , ,0 20 2,0 30 3,0 40 4,0 5,0 50 0, ,0 0,0 0,0 175 = 12 1,2 kg/m³ 2, ,000 5, ,000 00,000,000 00, , ,0 20 2,0 30 3,0 40 4,0 50 5,0 0, ,0 0,0 0,0 Impeller type 673 5, , , ,3 U/min rpm 1, ,000 0 Impeller materials: = 1,2 12 kg/m³ 2, , , , ,000,000 00, , ,0 20 2,0 30 3,0 40 4,0 50 5,0 0, ,0 0,0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK 0,0

55 VRE 0 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE 0/731W Level 2 VRE 0/731W Level 2 5) VRE 0/731W9 1,325 1) Level 2 5) VRE 0/733W ) VRE 0/733W ) VRE 0/733W9 1,2 1) Level 2 5) VRE 0/673W Level 2 VRE 0/673W Level 2 5) VRE 0/673W9 1,3 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 55

56 VRE 0 Technical data MAIN DIMENSIONS Casing position 0R Casing material: PPs, PVC, PE, PP, PPsX, PEX, PPsX, PVDF for drive power: <= 37kW > 37 kw bis 132 kw Ø0 Ø VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type SP775-M that is designed for the size, speed and drive power of the fan Type SP775-M Ø Ø M FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Frame R Hole pattern 1 Hole pattern x125 =375 28xØ 52 3x125 = x75 37 = x75 = xØ Models according to other standards or special designs are possible on request Flange F Ø0 Ø8 Ø844 20xØ Ø0 Ø8 Ø844 xø 56

57 ON VRE 0 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF Ø8 Ø0 ABD 514 RSF Ø8 Ø0 643 KOF Ø0 Condensate drain Casing material: all KSF KSV KSS Ø63 Ø165 Ø125 4xØ18 Ø63 Ø ELA + SPB KORR R, welded Suction side casing connection Casing material: all USEG F KOF ELA + SPB Accessories SPS WS RS x KOR Ø0Ø12 Ø1234 Ø8 Ø0 Ø8 Ø0 Ø0 Ø0 Ø2 ROE

58 VRE 0 Diagrams Impeller type 731 Impeller type 733 5, , ,175 U/min rpm 9 9 5, , ,020 U/min rpm , , , , = 12 1,2 kg/m³ 2, , , ,000 00,000 00,000 00, , ,0 20 2,0 30 3,0 40 4,0 50 5,0 0, ,0 0,0 0,0 155 = 12 1,2 kg/m³ 2, , , , ,000,000 00, , ,0 20 2,0 30 3,0 40 4,0 50 5,0 0, ,0 0,0 0,0 Impeller type 673 5, , , ,1 U/min rpm ,000 0 Impeller materials: 58 1 = 12 1,2 kg/m³ 2, , , , ,000,000 00, , ,0 20 2,0 30 3,0 40 4,0 50 5,0 0, ,0 0,0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK 0,0

59 VRE 0 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE 0/731W Level 2 VRE 0/731W Level 2 5) VRE 0/731W9 1,175 1) Level 2 5) VRE 0/733W ) VRE 0/733W Level 2 5) VRE 0/733W9 1,020 1) Level 2 5) VRE 0/673W Level 2 VRE 0/673W Level 2 5) VRE 0/673W9 1,1 1) Level 2 5) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 59

60 VRE 0 Technical data MAIN DIMENSIONS Casing position Casing material: for drive power: 0R PPs, PE, PVC, PEX, PP, PPsX, PVDF kw bis 132 kw Ø VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type SP775-M that is designed for the size, speed and drive power of the fan Type SP775-M Ø Ø M FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Flange F x125 = Hole pattern 1 Hole pattern Ø x125 =375 xø 20 Ø0 Ø x75 = xØ x75 = Ø0 Ø0 Ø9 xø 20xØ

61 ON VRE 0 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF Ø0 Ø0 RSF Ø0 Ø0 KOF Ø0 ELA + SPB KORR R, welded Suction side casing connection Casing material: all USEG F KOF ELA + 13 SPB Accessories SPS WS RS x KOR Ø0Ø1 Ø1384 Ø0 Ø0 Ø0 Ø0 Ø0 Ø0 Ø2 ROE Condensate drain 182 Casing material: all KSF KSV KSS Ø63 Ø165 4 Ø125 4xØ18 Ø63 Ø

62 VRE 0 Diagrams Impeller type 731 Impeller type 733 5, , , ,000 U/min rpm , , , U/min rpm , ,000 1 = 12 1,2 kg/m³ 2, , ,000, ,000 00,000, , ,000 2,0 3,0 20 4,0 5,030 40, ,0,0 200,0 0,0 0 1 = 12 1,2 kg/m³ 5, , ,000,000 00, , , ,0 30 3,0 40 4,0 5,0 50, ,0,0 0,0 0,0 0 Impeller type , , , ,000 9 U/min rpm 6 0 1,000 Impeller materials: 62 1 = 1,2 12 kg/m³ 2, ,000 5, ,000 00,000,000 00, , ,0 20 2,0 30 3,0 40 4,0 5,0 50, ,0 0,0 PPs, PPsX, PVC, PVDF GFRP GfK CFRP CfK,0 0

63 VRE 0 Technical data MOTOR VARIANTS for standard motor 3~V/Hz (Data for other motor types eg single phase motors, pole changing motors or Ex motors on request) Fan type Speed rpm kw kw A kg db(a) db(a) D-total VRE 0/731W Level 2 VRE 0/731W Level 2 5) VRE 0/731W9 1,000 1) Level 2 5) VRE 0/733W ) VRE 0/733W 855 1) ) VRE 0/673W Level 2 VRE 0/673W 9 1) Level 2 4) 1) - during operation with frequency converter > Hz L A3m = A - evaluated noise level at a distance of 3 m 2) - Fan does not fall within scope of ErP directive L WA = A - evaluated noise level in the channel 3) - Fan for moving aggressive media 4) - When using IE2 motors 5) - When using IE3 motors 6) - When using IE4 motors Power requirement Nominal motor power Nominal motor current Weight with Motor L A3m L WA Octave level L WA-Okt / db(a) ErP category CASING POSITIONS The fan is available in casing positions L (left) and R (right), each in 6 different casing positions The position of the casing is set by the manufacturer and requires significant effort to change subsequently The axle height specified with casing position 0R in the dimension drawing remains unchanged 000L 045L 0L 135L 1L 225L Corresponding drawings in dxf format are available on the MIETZSCH CD 000R 045R 0R 135R 1R 225R 63

64 VRE 0 Technical data MAIN DIMENSIONS Casing position Casing material: for drive power: 0R PPs, PVC, PE, PEX, PP, PPsX, PVDF kw bis 132 kw Ø VIBRATION ISOLATION The manufacturer equips all fans with a set of rubber insulators of type SP775-M that is designed for the size, speed and drive power of the fan Type SP775-M Ø Ø M FRAME / FLANGE Frame and flange are designed according to MIETZSCH standard MWS 5 or MWS 5 Drilling pattern: 0 undrilled (eg F0, KOF0) 1 hole pattern 1 for normal requirements (eg KOF1) 2 hole pattern 2 (double the number of screws) for high positive pressures and strong condensation (eg F2, KOF2) Models according to other standards or special designs are possible on request Frame R Flange F x125 = Hole pattern 1 Hole pattern xØ Ø x75 1 = Ø0 3x125 = Ø Ø0 54xØ 58 6x75 = Ø1 Ø 48xØ 24xØ 64

65 ON VRE 0 Accessories CASING CONNECTIONS The basic model of the fan depicted under MAIN DIMENSIONS can be supplemented with a range of accessories and thus adapted optimally to the specific operating conditions In addition to the standard range, special models and even special designs are possible on request The variants shown in the dimension drawing therefore only cover the most frequently used casing connections and condensate drains For detailed information, refer to the SPECIAL DESIGNS and ACCESSORIES sections Pressure side casing connection Casing material: PPs, PVC, PE, PEX, PP, PPsX, PVDF 614 Ø1 Ø0 RSF Ø1 Ø0 743 KOF Ø0 733 ELA + SPB KORR R, welded Suction side casing connection Casing material: all USEG F KOF ELA + SPB Condensate drain Casing material: all KSF KSV KSS Ø63 Ø165 Ø125 4xØ18 Ø63 Ø Accessories SPS WS RS 12 x KOR Ø1120Ø1 Ø1384 Ø1 Ø0 Ø1 Ø0 Ø0 Ø0 ROE Ø

66 Special designs Soundproof casing The installation situation can necessitate measures to reduce the noise level of the fan Soundproofing measures on the building side or encasing the fan with a soundproof capsula are not always possible To reduce the measuring surface sound pressure level by 7 dba, a soundproof casing can be used on request To this end, the casing is covered completely in a layer of mineral wool or soundproofing foam, which is covered in plastic in accordance with the casing material to protect it from damage or moisture Casings made of glass fibre reinforced plastic (GFRP) Due to the operating conditions, use of thermoplastics might not be possible, but at the same time, plastics are required for the components that come into contact with the medium to ensure resistance to chemicals In these cases, the casing as well as the impeller can be made of glass fibre reinforced plastics based on vinylester and epoxy resin For use in explosion hazard areas, these can be coated with a conductive chemical protection layer so that use in hazard areas of zone 1 is possible (see The technology explained, page 05) The casing is connected via a flange or frame (pressure side as of size 315) and compensators with the double-sided flange or frame Additional connecting parts are available on request 66

67 Accessories Splinter protection SPS and SPSG The VRE fans have been dimensioned safely on the basis of many years of experience An accident is almost impossible if all operating conditions are observed If impermissible operation cannot be avoided with sufficient certainty, eg due to caked on deposits on the impeller or impact of foreign bodies, you must use splinter protection A soft PVC foil placed around the casing jacket reduces environmental hazards due to splinters in case the impeller is destroyed Ordering information: SPS - splinter protection made of PVC foil SPSG - splinter protection made of PVC foil with additional wire mesh Additional safety can be achieved by reinforcing the casing jacket with glass-fibre reinforced plastic (GFRP) Cleaning hatch ROE For cleaning, the fan is removed from the plant and the intake connector is opened For large fans and high pollution, maintenance work can be reduced by means of an additional cleaning hatch in one or both sides of the casing or the jacket of the casing (see image above) Ordering information: ROE cleaning hatch Position (suction side, motor side, jacket + degree specification, see page 07) Weather protection WS for the motor By default, motors with protection level IP 55 are used, which are protected from hose water from all directions When installing fans outside, additional weather protection against all types of weather should be installed D Cleaning hatch (Opening Ø D ) Splinter protection Cleaning opening Fan size Casing Side Coat VRE - Ø1 VRE 2 - Ø1 VRE 315 Ø1 2x VRE Ø1 2x VRE 4 Ø1 2x VRE Ø1 x315 VRE 5 6 Ø225 x315 VRE 0 Ø2 x Weather protection Ordering information: WS - weather protection Condensate drain KSS / KSV / KSF Every fan has a condensate drill hole with a sealing cap at its lowest point Various nozzles for installing a condensate hose are available on request Ordering information: KSS - condensate nozzles Ø 22 for 3/4 hose KSV - condensate nozzles with screw connection EPDM seals KSF - condensate nozzles with flange ISO/DIN 21 PN KSB - condensate drill hole: Ø 145 Cleaning opening Fan size Ø D VRE 20 VRE 1 25 VRE VRE 5 VRE 6 VRE Ø 22 ØD ØD KSS KSV KSF 67

68 Electrical accessories Repair switch RS The RS switch is used to completely disconnect the fan from the grid for maintenance and repair work This ensures there is no risk of accidents due to uncontrolled activation The switch is delivered either loose or mounted and wired to the fan The size of the switch is determined by the engine power and the mains voltage Repair switch Switching capacity / kw three-pole Type 3(1)x2V 3xV 3x6V (for single-phase and RS ,5 7,5 three-phase motors) RS ,5 with auxiliary contact RS key-locked RS degree of protection IP 65 RS3-45 If the fan is connected via a frequency converter, the cable connection is shielded For pole changing motors, 6-pole switches are used For explosion protected fans, switches with EX protection EEX de IICT6 are used in accordance with ATEX Motor protection switch MS Connect each motor to the mains supply with a reactivation block Protection switches of type MS are three-pole low voltage switching devices and are used for single phase and three-phase motors They protect the engine from impermissible overloading and are used for operational switching of the fan The switch is delivered either loose or mounted and wired It is set for the respective nominal motor power Type Currant range / A MS 0,6 1,0 MS 16 1,0 1,6 Motor protection switch MS 25 1,6 2,5 three-pole MS 40 2,5 4,0 (for single-phase and MS 63 4,0 6,3 three-phase motors) MS 0 6,3 degree of protection IP 54 MS MS MS MS MS 0 32 For pole-changing motors, a switch is required for each speed For explosion protected fans, switches with EX protection EEX de IICT6 are used in accordance with ATEX Frequency converter FU A31 By utilising its numerous functions and with some additional components, many simple control tasks can be solved very easily with frequency converter FU A31 Based on this frequency converter, MIETZSCH supplies individual applications such as speed setting using a potentiometer, staggered operation, timer switching, pressure or volumetric flow control etc The user receives a complete system (fan, converter, switches, indicator lamps, measuring equipment, sensors, etc) which is immediately ready for operation after electrical connection All the necessary settings and programming are implemented at the factory Example: Volumetric flow control with alarm when the flow falls below the threshold Alarm unit Fan FU A31 with main switch and setpoint potentiometer Protection class IP Metering orifice with pressure transmitter