GRUNDFOS DATA BOOKLET MTB. Centrifugal machine tool pumps 50/60 Hz

Transcription

1 GRUNDFOS DATA BOOKLET Centrifugal machine tool pumps 5/6 Hz

2 Contents General description Introduction 3 Applications 3 Special features 3 Identification Type key Codes Pump types and data Construction Sectional drawing 5 Material specification 5 Mounting 5 Mechanical construction 5 Surface treatment 6 Test pressure 6 Motor 7 Operating conditions Inlet pressure Maximum operating pressure Ambient temperature and altitude 9 Performance curves/ Technical data 5-2, -pole, 5 Hz , 2-pole, 5 Hz , 2-pole, 5 Hz 2 5-2, -pole, 6 Hz , 2-pole, 6 Hz , 2-pole, 6 Hz 26 Accessories Support blocks 2 Service Spare parts 29 Further product documentation WebCAPS 3 WinCAPS 31 Installation Positioning 1 Vertical installation 1 Horizontal installation 1 Pipework 1 Foundation 1 Elimination of noise and vibration 11 Selection of product Pump size 12 Efficiency 12 Shaft seal material 12 Pumped liquids Pumped liquids 13 List of pumped liquids 13 Curve charts How to read the curve charts 15 Curve conditions 15 Calculation of total head 15 2

3 General description Introduction The machine tool pumps are single-stage centrifugal pumps with axial suction port and radial discharge port. The unique SuperVortex impeller is capable of handling solids and swarf up to 2 mm. The pump is directly coupled to a totally enclosed fancooled standard motor. Main dimensions are according to IEC and DIN standards. Applications The pumps are designed specifically for industrial machine tool and cleaning applications such as machining centres cooling systems grinding machines lathes parts-cleaning systems. Special features Because of the back-pull-out design, the motor and impeller can be removed without dismantling the pump housing or pipework. This makes it possible for a single person and a crane to service even the largest pump. TM Fig. 1 Back-pull-out design Additional features EFF 1 motor as standard Excellent solids handling capabilities Good air handling LiqTec sensor ensures that the pump stops immediately in the event of dry running Motor with integrated frequency converter as an option Different shaft seal solutions Full range of industrial pumps. 3D CAD drawings and technical information can be found in the Grundfos pump selection tools, WebCAPS and WinCAPS. See pages 3 to 31. 3

4 Identification Type key Example 65-2 /199 A -F -A -BQQV Pump range Nominal diameter of discharge port (DN) Housing size Actual impeller diameter [mm] Code for pump version Code for pipework connection Pump types and data Pump type 5 Hz 6 Hz Design P2 [kw] Number of poles Page 5-2/215 A /15 A /171 A /13 B /199 B /13 A /199 A /215 A /1 A /15 B /171 B Code for material Code for shaft seal and rubber pump parts The example describes an 65-2 pump with an actual impeller diameter of 199 mm, of the basic version, with DIN flanges, made of cast iron and with a BQQV shaft seal. Codes Example A - F - A - B Q Q V Pump version A Basic version Pipe connection F DIN flange Materials A Cast iron Shaft seal B Rubber bellows seal Q Silicon carbide (SiC) P NBR (nitrile) V FKM The pump is fitted with FKM O-rings as standard.

5 Construction Sectional drawing a Mounting is available in these designs: Design A: pump housing with feet Design B: motor with feet. See figures 3 and. TM Fig. 3, Design A 27 19a a TM TM Fig. 2 Sectional drawing, 5-2 Material specification Pos. Part Material 2 Pump head Cast iron, EN-GJL-25 6 Pump housing Cast iron, EN-GJL Air vent screw Brass 19 Plug - 19a Plug - 26 Nut - 27 Nut - 9 Impeller Cast iron, EN-GJL Pump shaft Stainless steel, AISI 3 72a O-ring FKM 15a Mechanical seal SiC/SiC, FKM 115 Seal spacer Stainless steel, AISI 3 Fig., Design B Mechanical construction Pump Designs 5 Hz 6 Hz 5-2 A A A A B 65-2 B - 5

6 Construction Pump housing Volute pump housing made of cast iron with axial suction port and radial discharge port. Flange connection dimensions are in accordance with EN The bottom of the pump housing incorporates a drain plug. The discharge port has a pressure gauge tapping. Pump head Combining pump housing and motor, the pump head is provided with a manual air vent screw for the venting of pump housing and seal chamber. An O-ring provides a seal between pump head and pump housing. Coupling guards are fitted in the central part of the pump head. To remove the pump head from the pump housing, use a lever between the pump housing and the pump head. pumps are fitted with the following motor flange types: type IM B 5 for motor sizes up to MMG 132 (according to IEC 63) type IM B 35 for motor size MMG 16 (according to IEC 63). Shaft Stainless steel shaft of 2 or 3 mm. The coupling end of the shaft is cylindrical and has two drilled holes for the shaft pin of the coupling. Shaft seal pumps are fitted with an unbalanced, mechanical SiC/SiC shaft seal with FKM as standard material. NBR material is available on request. A brief liquid circulation during start-up, by manually opening the air vent screw in the pump head, ensures perfect lubrication and cooling of the shaft seal. Coupling pumps are fitted with a cylindrical, hollow steel coupling secured by two hexagon socket head screws. Impeller The semi-open impeller is made of cast iron. All pumps are dynamically balanced. The impeller is hydraulically balanced to compensate for axial thrust. The impeller is extremely suitable for handling swarf and solids. Spherical impeller clearance: Max. 2 mm. Note: When viewed from the motor fan, the impeller rotates clockwise. Surface treatment All stationary cast iron parts are dip-painted with waterbased ether-epoxy no-lead painting. Thickness: 25 μm ±5 μm. In addition, the product is spray-painted with black water-based ether-epoxy no-lead painting (NCS 9/ RAL 95). Thickness: 35 μm ±5 μm. Test pressure Before delivery, the pumps have been tested at 1.5 times maximum operating pressure. Test requirements according to EN 733 are 1.3 times maximum operating pressure. Test liquid: Water, 2 C. Maximum operating temperature and pressure Shaft seal Operating temperature Maximum operating pressure [bar] BQQV C to +9 C 16 bar BQQP C to +9 C 16 bar 6

7 Construction Motor pumps are equipped with a totally enclosed, fancooled, EFF 1 motor with main dimensions to IEC and DIN standards. 5 Hz Output P 2 [kw] EFF 1 motor range 2-pole -pole 3. MG, model D MG, model D Siemens 6 Hz 3.. MG, model D 5.5 Siemens 7.5 MG, model D Siemens Motor data Type IM B 5 for motor sizes up to MMG 132, Flange types according to IEC 63. Type IM B 35 for motor size MMG 16, according to IEC 63. Insulation class F, according to IEC 5 Electrical tolerances According to VDE 53 Efficiency class Standard range: EFF 1 Enclosure class IP 55 Supply voltage, 5 Hz Supply voltage, 6 Hz 3 x 22-2 V Δ / 3-15 V Y 3 x 3-15 V Δ 3 x 3-15 V Δ / V Y 3 x V Δ / 3- V Y 3 x 3-15 V Δ 3 x 3-15 V Δ / V Y pumps are also available with special voltage Supply voltage, 5 Hz 3 x 2-22 V Δ / 36-3 V Y Supply voltage, 6 Hz 3 x 2-23 V Δ / 36- V Y The motor must be connected to a motor starter in accordance with local regulations. 7

8 Operating conditions Inlet pressure Minimum inlet pressure according to the NPSH curve plus a safety allowance of at least 2 m. The maximum inlet pressure is limited by the maximum operating pressure. Minimum inlet pressure - NPSH Calculation of the inlet pressure "H" is recommended when the liquid temperature is high the flow is significantly higher than the rated flow water is drawn from depths water is drawn through long pipes inlet conditions are poor. To avoid cavitation, make sure that there is a minimum pressure on the suction side of the pump. The maximum suction lift "H" in metres head can be calculated as follows: H = p b x 1.2 NPSH H f H v H s p b = Barometric pressure in bar. (Barometric pressure can be set to 1 bar.) In closed systems, p b indicates the system pressure in bar. NPSH = Net Positive Suction Head in metres head. (To be read from the NPSH curve at the highest flow the pump will be delivering.) H f = Friction loss in suction pipe in metres head. (At the highest flow the pump will be delivering.) H v = Vapour pressure in metres head. (To be read from the vapour pressure scale. "H v " depends on the liquid temperature "T m ".) H s = Safety margin = minimum 2 metres head. If the "H" calculated is positive, the pump can operate at a suction lift of maximum "H" metres head. If the "H" calculated is negative, an inlet pressure of minimum "H" metres head is required. H P b H f Fig. 5 Schematic view of open system with pump Fig. 6 Relation between liquid temperature and vapour pressure Check that the pump is not and will not be exposed to cavitation. Maximum operating pressure Up to +9 C: H v tm ( C) NPSH Hv (m) , 9 6, 5,, 7 3, 6 2, 1,5 5 1,,,6 3,,3 2,2 1,1 1.6 MPa (16 bar). TM TM

9 Operating conditions Ambient temperature and altitude Motor make Motor efficiency class Maximum ambient temperature [ C] Maximum altitude above sea level [m] Grundfos MG EFF If the ambient temperature exceeds the above temperature value or the pump is installed at an altitude exceeding the above altitude value, the motor must not be fully loaded due to the risk of overheating. Overheating may result from excessive ambient temperatures or the low density and consequently low cooling effect of the air. In such cases, it may be necessary to use a motor with a higher rated output. P2 [%] 1 EFF t [ C] m Fig. 7 Motor P2 depends on temperature/altitude TM

10 Installation Positioning The pump should never be installed with the motor pointing downwards. If the pump has been installed with the terminal box pointing downwards, turn the motor to the required position. Horizontal installation Pumps fitted with 3- kw motors require a 3 mm clearance behind the motor. See fig. 1. Pumps fitted with motors of 5.5 kw and up require a 3 mm clearance behind the motor and a 1 metre clearance above the motor to allow the use of lifting equipment. See fig kw Fig. Installation Vertical installation Pumps fitted with 3- kw motors require a 3 mm clearance above the motor. See fig. 9. Pumps fitted with motors of 5.5 kw and up require at least a 1 metre clearance above the motor to allow the use of lifting equipment. See fig kw kw 3 mm 1 m TM Fig. 1 Horizontal installation Pipework kw 1 m 3 mm 3 mm When installing the pipes, ensure that the pump housing is not stressed by the pipework. The suction and discharge pipes must be of an adequate size, taking into account the pump inlet pressure. TM Fig. 9 Vertical installation TM Foundation We recommend that you install the pump on a plane and rigid concrete foundation which is heavy enough to provide permanent support for the entire pump. As a rule of thumb, the weight of the concrete foundation should be 1.5 times the pump weight. See fig

11 Installation Elimination of noise and vibration In order to achieve optimum operation and minimum noise and vibration, consider vibration dampening of the pump. Generally, always consider this for pumps with motors above 7.5 kw. Smaller motor sizes, however, may also cause undesirable noise and vibration. Noise and vibration are generated by the revolutions of the motor and pump and by the flow in pipes and fittings. The effect on the environment is subjective and depends on correct installation and the state of the remaining system. Elimination of noise and vibrations is best achieved by means of vibration dampers and expansion joints. See fig. 11. Expansion joint Concrete foundation Vibration damper TM Expansion joints If you install the pump on a foundation with vibration dampers, always fit expansion joints on the pump flanges. This is important to prevent the pump from "hanging" in the flanges. Install expansion joints to absorb expansions/contractions in the pipework caused by changing liquid temperature reduce mechanical strains in connection with pressure surges in the pipework isolate mechanical structure-borne noise in the pipework (only rubber bellows expansion joints). Note: Do not install expansion joints to compensate for inaccuracies in the pipework such as centre displacement of flanges. Fit expansion joints at a distance of minimum 1 to 1½ times the nominal flange diameter away from the pump on the suction as well as on the discharge side. This will prevent the development of turbulence in the expansion joints, resulting in better suction conditions and a minimum pressure loss on the pressure side. At high water velocities (> 5 m/s), we recommend you to install larger expansion joints corresponding to the pipework. We always recommend expansion joints with limiting rods for flanges larger than DN 1. Fig. 11 pump with expansion joints and vibration dampers Vibration dampers To prevent the transmission of vibrations to buildings, we recommend you to isolate the pump foundation from building parts by means of vibration dampers. The selection of the right vibration damper requires the following data: forces transmitted through the damper motor speed considering speed control, if any required dampening in % (suggested value is 7 %). Which is the right damper varies from installation to installation, and a wrong damper may increase the vibration level. Vibration dampers should therefore be sized by the supplier. 11

12 Selection of product Pump size The selection of pump size should be based on: required flow and pressure at the draw-off point pressure loss as a result of height differences friction loss in the pipework It may be necessary to account for pressure loss in connection with long pipes, bends or valves, etc. best efficiency at the estimated duty point. TM Fig. 12 Schematic drawing of an installation Efficiency If you expect the pump to always operate in the same duty point, select a pump which is operating in a duty point corresponding to the best efficiency of the pump. In case of controlled operation or varying consumption, select a pump whose best efficiency falls within the duty range covering the greater part of the duty time. Shaft seal material As standard, the pump comes with an FKM O-ring. O- rings are also available in NBR. The material variant should be selected on the basis of the liquid to be pumped. See page

13 Pumped liquids Pumped liquids Liquid temperature: C to +9 C. Dirty, thin, non-explosive liquids containing swarf or solids up to 2 mm. The liquid must not attack the pump mechanically or chemically. List of pumped liquids A number of typical liquids are listed below. Other pump versions may be applicable, but those stated in the list are considered to be the best choices. The table is intended as a general guide only and cannot replace actual testing of the pumped liquids and pump materials under specific working conditions. However, use the list with some caution, as factors such as concentration of the pumped liquid liquid temperature pressure particle size may affect pump life and cause shaft seal problems. Pumped liquid Note Additional information Shaft seal Coolant in machine tool Water-based coolant Synthetic lubricating oil Cleaning Consider motor size and/or pump performance due to the density and/or viscosity. Soap (salts of fatty acids) < C Alkaline degreasing < C Mineral oils Crude oil Mineral lubricating oil Consider motor size and/or pump performance due to the density and/or viscosity. BQQV (BQQP) BQQV (BQQP) BQQV (BQQP) BQQP (BQQV) < 2 C BQQV BQQV 13

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15 Curve charts How to read the curve charts Total pump head H = H total p [kpa] H [m] 36 /171 3 % 1 % % pole, 6 Hz ISO 996 Annex A Pump type, number of poles and frequency /15 % 9.1 % QH curve for the individual pump. Dimension of impeller % 2 % NPSH 1 % /171 /15 NPSH [m] 12 The power curves indicate pump input power [P 2 ] Q [m³/h] v [m/s] P2 [kw] 1 /171 The NPSH curve is an average curve for all the variants shown. When sizing the pumps, add a safety margin of at least 2 m / Q [m³/h] Q [l/s] TM Curve conditions The following guide lines apply to the curves shown from page to 16: The curve values have been tested at a water temperature of 2 C. The curves apply to the actual speed of the motor types stated at 5 Hz. The conversion between head "H [m]" and pressure "p [kpa]" applies to water with a density of ρ = 1 kg/m 3. In case of densities other than 1 kg/m 3, the discharge pressure is proportional to the density. When pumping liquids with a density higher than 1 kg/m 3, motors with correspondingly higher outputs must be used. The curves apply to a kinematic viscosity of ν =1mm 2 /s (1 cst). Maximum kinematic viscosity without any new calculation of motor size being necessary is 3 mm 2 /s. Tolerances according to ISO 996, Annex A. The pumps should not be used at minimum flows below.1 x Q at an optimum efficiency because of the danger of overheating of the pump. NPSH: The curves stated are average values found under the same conditions as the performance curves. Liquid: Air-free water. When sizing, add a safety allowance of at least 2 m. v (m/s) indicates flow velocity in discharge port. Calculation of total head The total pump head consists of the height difference between the measuring points + the differential head + the dynamic head. H total = H geo + H stat + H dyn Legend H geo H stat H dyn = Height difference between the measuring points = Differential head between the suction and the discharge side of the pump. = Calculated values based on the velocity of the pumped liquid on the suction and the discharge side of the pump. 15

16 Performance curves/ Technical data 5-2 -pole, 5 Hz 5-2, -pole, 5 Hz p [kpa] H [m] /215 2 % 6 % 9 % 51 % 51.7 % pole, 5 Hz ISO 996 Annex A % % 9 6 % 2 % NPSH [m] 6 1 NPSH Q [m³/h] P2 [kw] v [m/s] 2. / Q [m³/h] Q [l/s] TM

17 Technical data 5-2 -pole, 5 Hz TM TM EN PN 16 Nominal diameter (DN) 5 65 D D D S x 19 x 19 x TM x [mm] Motor only 6 Motor and 1 pump head Minimum clearance for removal of motor/pump head Dimensions and weights Pump type Motor [kw] Dimensions [mm] DNs DNd a AD AG b G1 G2 h1 h2 L LL LB m1 m2 n1 n2 P s1 5-2/ M12 65 Net weight [kg] Electrical data 3 x 22-2 V Δ / 3-15 V Y P Pump type Motor type 2 I 1/1 η max Power factor n I [kw] [A] [%] cos ϕ [min start ] I /215 MG 1LC-D /

18 Performance curves pole, 5 Hz 65-16, 2-pole, 5 Hz p [kpa] 2 H [m] / % % 3 % pole, 5 Hz ISO 996 Annex A /15 7 %.9 % % 3 % 7 % % 37 % 6 NPSH /15 /171 NPSH [m] Q [m³/h] v [m/s] P2 [kw] / / Q [m³/h] Q [l/s] TM

19 Technical data pole, 5 Hz TM TM EN PN 16 Nominal diameter (DN) 65 D 1 65 D D S x 19 x 19 x TM x [mm] Motor only Motor and 1 pump head Minimum clearance for removal of motor/pump head Dimensions and weights Pump type Motor [kw] Dimensions [mm] DNs DNd a AD AG b G1 G2 h1 h2 L LL LB m1 m2 n1 n2 P s / M / M12 5 Net weight [kg] Electrical data 3 x 3-15 V Δ Pump type Motor type P 2 I 1/1 η max Power factor n I [kw] [A] [%] cos ϕ [min start ] I /15 MG 132SC-D /171 MG 132SD-D

20 Performance curves pole, 5 Hz 65-2, 2-pole, 5 Hz p [kpa] 5 H [m] 5 5 / pole, 5 Hz ISO 996 Annex A 53 % 35 /13 56 % 59 % 59.2 % 59 % % % /199 NPSH [m] /13 5 NPSH Q [m³/h] v [m/s] P2 [kw] /199 / Q [m³/h] Q [l/s] TM

21 Technical data pole, 5 Hz TM TM EN PN 16 Nominal diameter (DN) 65 D 1 65 D D S x 19 x 19 x TM x [mm] Motor only 11 Motor and 1 pump head Minimum clearance for removal of motor/pump head Dimensions and weights Pump type Motor [kw] Dimensions [mm] DNs DNd a A AD AG B C G1 G2 H h2 K L LB LL P 65-2/ / Motor feet are to be underpinened by support blocks, see Accessories on page 2 Net weight [kg] Electrical data 3 x 3-15 V Δ Pump type Motor type P 2 I 1/1 η max Power factor n I [kw] [A] [%] cos ϕ [min start ] I /13 Siemens 16M / /199 Siemens 16M /

22 Performance curves 5-2 -pole, 6 Hz 5-2, -pole, 6 Hz p [kpa] 2 22 H [m] 2 22 / pole, 6 Hz ISO 996 Annex A % 2 % 5 % 7 % 1 1 / % 1 1 /13. % 7 % % 5 % 2 % % NPSH [m] 12 /13 / NPSH / Q [m³/h] P2 [kw] v [m/s] / / / Q [m³/h] Q [l/s] TM

23 Technical data 5-2 -pole, 6 Hz TM TM EN PN 16 Nominal diameter (DN) 5 65 D D D S x 19 x 19 x TM x [mm] (-/13 and -/199) x [mm] (-/215) Motor only 6 Motor and pump head 1 1 Minimum clearance for removal of motor/pump head Dimensions and weights Pump type Motor [kw] Dimensions [mm] DNs DNd a AD AG b G1 G2 h1 h2 L LL LB m1 m2 n1 n2 P s1 5-2/ M / M12 5-2/ M12 7 Net weight [kg] Electrical data 3 x V Δ / 3- V Y Pump type Motor type P 2 I 1/1 η Power factor n I [kw] [A] [%] cos ϕ [min start ] I /13 MG 1LC-D / /199 MG 112MC-D / /215 Siemens 132S /

24 Performance curves pole, 6 Hz , 2-pole, 6 Hz p [kpa] 2 2 H [m] /1 36 % 39 % 1 % 3 % pole, 6 Hz ISO 996 Annex A % 1 3 % % 39 % 6 NPSH /1 NPSH [m] Q [m³/h] P2 [kw] v [m/s] 7 / Q [m³/h] Q [l/s] TM

25 Technical data pole, 6 Hz TM TM EN PN 16 Nominal diameter (DN) 65 D 1 65 D D S x 19 x 19 x TM x [mm] Motor only Motor and 1 pump head Minimum clearance for removal of motor/pump head Dimensions and weights Pump type Motor [kw] Dimensions [mm] DNs DNd a AD AG b G1 G2 h1 h2 L LL LB m1 m2 n1 n2 P s / M12 7 Net weight [kg] Electrical data 3 x 3-15 V Δ P Pump type Motor type 2 I 1/1 η max Power factor n I [kw] [A] [%] cos ϕ [min start ] I /1 MG 132SD-D

26 Performance curves pole, 6 Hz 65-16, 2-pole, 6 Hz p [kpa] H [m] 36 /171 3 % 1 % % pole, 6 Hz ISO 996 Annex A /15 % % % 2 % % NPSH [m] 12 NPSH /171 / Q [m³/h] P2 [kw] v [m/s] / / Q [m³/h] Q [l/s] TM

27 Technical data pole, 6 Hz TM TM EN PN 16 Nominal diameter (DN) 65 D 1 65 D D S x 19 x 19 x TM x [mm] Motor only 11 Motor and 1 pump head Minimum clearance for removal of motor/pump head Dimensions and weights Pump type Motor [kw] Dimensions [mm] DNs DNd a A AD AG B C G1 G2 H h2 K L LB LL P 65-16/ / Motor feet are to be underpinened by support blocks, see Accessories on page 2 Net weight [kg] Electrical data 3 x 3- V Δ / V Y Pump type Motor type P 2 I 1/1 η Power factor n I [kw] [A] [%] cos ϕ [min start ] I /15 Siemens 16M / /171 Siemens 16M /

28 Accessories Support blocks During installation, support blocks can be fitted under the motor feet in order to compensate for dimensional differences between pump housing and motor frame sizes, thus enabling easy horizontal mounting of the pumps. The product number refers to a set of two support blocks having the dimensions specified in the following table. Pump type P 2 [kw] Dimensions W x L x H [mm] Product number 5 Hz 65-2/ x 332 x / Hz 65-16/ x 332 x /

29 Service Spare parts Available spare parts kits. Mechanical shaft seal complete Shaft with spacing bush Impeller. For more information on spare parts and kits, see Grundfos WinCAPS/WebCAPS or the Grundfos Service Kit Catalogue. 29

30 Further product documentation WebCAPS WebCAPS is a Web-based Computer Aided Product Selection program available on WebCAPS contains detailed information on more than 15, Grundfos products in more than 2 languages. In WebCAPS, all information is divided into 6 sections: Catalogue Literature Service Sizing Replacement CAD drawings. Catalogue This section is based on fields of application and pump types, and contains technical data curves (QH, Eta, P1, P2, etc.) which can be adapted to the density and viscosity of the pumped liquid and show the number of pumps in operation product photos dimensional drawings wiring diagrams quotation texts, etc. Literature In this section you can access all the latest documents of a given pump, such as data booklets installation and operating instructions service documentation, such as Service kit catalogue and Service kit instructions quick guides product brochures. Service This section contains an easy-to-use interactive service catalogue. Here you can find and identify service parts of both existing and discontinued Grundfos pumps. Furthermore, this section contains service videos showing you how to replace service parts. 3

31 1 Further product documentation Sizing This section is based on different fields of application and installation examples, and gives easy step-by-step instructions in how to select the most suitable and efficient pump for your installation carry out advanced calculations based on energy consumption, payback periods, load profiles, life cycle costs, etc. analyse your selected pump via the built-in life cycle cost tool determine the flow velocity in wastewater applications, etc. Replacement In this section you find a guide to selecting and comparing replacement data of an installed pump in order to replace the pump with a more efficient Grundfos pump. The section contains replacement data of a wide range of pumps produced by other manufacturers than Grundfos. Based on an easy step-by-step guide, you can compare Grundfos pumps with the one you have installed on your site. When you have specified the installed pump, the guide will suggest a number of Grundfos pumps which can improve both comfort and efficiency. CAD drawings In this section it is possible to download 2-dimensional (2D) and 3- dimensional (3D) CAD drawings of most Grundfos pumps. These formats are available in WebCAPS: 2-dimensional drawings:.dxf, wireframe drawings.dwg, wireframe drawings. 3-dimensional drawings:.dwg, wireframe drawings (without surfaces).stp, solid drawings (with surfaces).eprt, E-drawings. WinCAPS WinCAPS is a Windows-based Computer Aided Product Selection program containing detailed information on more than 15, Grundfos products in more than 2 languages. The program contains the same features and functions as WebCAPS, but is an ideal solution if no Internet connection is available. WinCAPS is available on CD-ROM and updated once a year. Fig. 13 WinCAPS CD-ROM 31

32 Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence Repl GB Subject to alterations. GRUNDFOS A/S. DK-5 Bjerringbro. Denmark Telephone: