Comeo Type Series Booklet

Multistage Horizontal Centrifugal Pump Type Series Booklet

Legal information/copyright Type Series Booklet All rights reserved. The contents provided herein must neither be distributed, copied, reproduced, edited or processed for any other purpose, nor otherwise transmitted, published or made available to a third party without the manufacturer's express written consent. Subject to technical modification without prior notice. KSB Aktiengesellschaft, Frankenthal 28/11/216

Contents Contents Centrifugal Pumps... 4... 4... 4 Main applications... 4 Fluids handled... 4 Operating data... 4 Designation... 4 Design details... 4 Materials... 5 Product benefits... 5 Certifications... 5 Selection information... 5 Minimum flow rate / maximum flow rate... 5 Programme overview / selection tables... 6 Shaft seal... 6 Technical data... 7 C, 1~23 V, 5 Hz... 7 C, 1~23 V, 6 Hz... 7 C, 23/4 V, 5 Hz... 7 C, 23/4 V, 6 Hz... 8 G, 1~23 V, 5 Hz... 8 G, 1~23 V, 6 Hz... 8 G, 23/4 V, 5 Hz... 9 G, 23/4 V, 6 Hz... 9 Characteristic curves... 1 n 29 rpm... 1 ; 2; n 29 rpm... 1 ; 4; n 29 rpm... 11 ; 6; n 29 rpm... 12 n 35 rpm... 13 ; 2; n 35 rpm... 13 ; 4; n 35 rpm... 14 ; 6; n 35 rpm... 15 Dimensions and connections... 16 Dimensions... 16 Connections... 17 General assembly drawing with list of components... 18 Detailed designation... 19 3

Centrifugal Pumps C G Pump casing made of cast iron 2 Size, flow rate [m³/h] at BEP 2, 4, 6 2 Number of stages 2) Design details Design Centrifugal pump Multistage Close-coupled design Extended motor shaft Maximum pressure class PN 1 Installation Horizontal installation Drive Single-phase AC motor or three-phase motor To IEC 634-7 Main applications Cold water pressure booster systems Cold water systems General irrigation systems Light industrial applications Fluids handled Clean water (without solids) Slightly aggressive fluid Operating data Operating properties Characteristic Value Flow rate Q [m³/h] 1,8 Head H [m] 79,5 Fluid temperature T [ C] -1 to +6 Ambient temperature T [ C] -2 to +4 1) Pressure class PN [bar] 1 Efficiency class IE3 to IEC 634-3 (for three-phase motors.75 kw) Frequency 5/6 Hz 2 poles Thermal class F IP55 enclosure Mode of operation: continuous operation S1 Thermal circuit breaker with automatic reset and start-up for single-phase AC motor Shaft seal Mechanical seal To EN 12756 Uncooled Maintenance-free Designation Example: C 2/2 Designation key C Type series Material variant C Pump casing made of cast stainless steel 1) Optional: -2 to +55 C 2) Default: stages 2, 4 und 6; optional: intermediate stages 1, 3 and 5 4

Materials Overview of materials depending on material variant Part No. In contact with water C G 1-6 Pump shroud 1.431 11 Pump casing 1.438 EN-GJL-25 18.1/.4/.5 Stage casing 1.431 16 Cover 1.431 - Shaft 1.4541 23 Impeller 1.431 341 Drive lantern - EN-GJL-25 412 O-ring EPDM 433 Mechanical seal B V E F F B V P F F 525.1/.3/.5 Spacer sleeve 1.435 93.5 Vent plug 1.431 / EPDM PEHD / TPE 95 Tie bolt - 1.457 92.2/.3 Nut 1.431 93.2 Lock washer 1.441 932 Circlip 1.4571 95 Spring 1.441 Comparison of materials EN General description EN material code EN standard ASTM EN-GJL-25 Cast iron GJL-25 EN 1561 A48-4 B 1.457 Chrome nickel steel X17CrNi 16-2--QT8 EN 188-3 A276-431 1.431 Chrome nickel steel X5CrNi 18-1 EN 188 A276-34 1.435 Chrome nickel steel X8CrNiS 18-9 EN 188 A276-33 1.438 Chrome nickel steel GX5CrNi19-1 EN 1213-4 A351 - Grade CF8 1.441 Chrome nickel molybdenum steel X5CrNiMo 17-12-2 EN 188 A276-316 1.4541 Chrome nickel steel X6CrNiMoTi 18-1 EN 188 A276-321 1.4571 Chrome nickel molybdenum steel X6CrNiMoTi 17-12-2 EN 188 A276-316Ti Product benefits Top quality pump thanks to advanced high-precision production technology and resistant high-grade materials An energy-saving, state-of-the-art pump solution characterised by high efficiency levels, optimum flow passage, the use of high-efficiency motors, and precision engineering of all hydraulic components High energy efficiency as well as low investment and maintenance costs make for low life cycle costs Very compact, space-saving design Minimum flow rate / maximum flow rate Q [m³/h] at a fluid temperature 2 C Size 5 Hz 6 Hz Min. Max. Min. Max. 2,2 3,3,2 4, 4,4 6,5,5 7,8 6,6 9,,8 1,8 Certifications Overview Label Valid in: Note France For material variant cast stainless steel United Kingdom For material variant cast stainless steel Selection information Minimum flow rate / maximum flow rate A minimum flow rate must be ensured to protect the pump against overheating and to prevent gas pockets, cavitation, etc. 5

Programme overview / selection tables Shaft seal Mechanical seal material C to EN 12756 Material Comment B Primary ring Carbon graphite Ca Resin-impregnated V Mating ring Aluminium oxide Ce Ceramics E Elastomer EPDM EPDM Ethylene propylene rubber 3) F Spring Chrome nickel steel CrNi steel - F Other metal parts Chrome nickel steel CrNi steel - Mechanical seal material G to EN 12756 Material Comment B Primary ring Carbon graphite Ca Resin-impregnated V Mating ring Aluminium oxide Ce Ceramics P Elastomer NBR NBR Nitrile butadiene rubber F Spring Chrome nickel steel CrNi steel - F Other metal parts Chrome nickel steel CrNi steel - 3) To ACS / WRAS 6

Technical data C, 1~23 V, 5 Hz 5 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 1~23 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 48229175 13,1 2/4 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 48229176 13,8 2/6 276,55 3,9,92 +/-1 7, 56, 1 M18 1,5 2 3,69 48229177 15,9 4/2 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 48229178 13,1 4/4 276,55 3,9,92 +/-1 7, 56, 1 M18 1,5 2 3,69 48229179 15,3 4/6 279 1,1 4,3,95 +/-1 75, 58, 1 M2 1,5 2 6,68 4822918 2 6/2 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 4823993 13,4 6/4 279 1,1 4,3,95 +/-1 75, 58, 1 M2 1,5 2 6,68 48239931 19,7 6/6 28 1,5 4,8,95 +/-1 76, 58, 1 M2 1,5 2 8,99 48239932 23,1 C, 1~23 V, 6 Hz 6 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 1~23 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 345,37 4,5,95 +/-1 74, 64, 1 M18 1,5 2 2,3 48239933 13,1 2/4 342,55 3,8,96 +/-1 74, 65, 1 M18 1,5 2 3,35 48239934 15,2 2/6 342,75 4,3,97 +/-1 75, 68, 1 M2 1,5 2 4,5 48239935 17,4 4/2 342,55 3,8,96 +/-1 74, 65, 1 M18 1,5 2 3,35 48239936 14,5 4/4 34 1,1 4,8,96 +/-1 79, 72, 1 M2 1,5 2 6,3 48239937 19,3 4/6 342 1,5 4,7,95 +/-1 76, 75, 1 M2 1,5 2 9,1 48239938 22,7 6/2 342,75 4,3,97 +/-1 75, 68, 1 M2 1,5 2 4,5 48239939 16,3 6/4 342 1,5 4,7,95 +/-1 76, 75, 1 M2 1,5 2 9,1 4823994 22,4 6/6 342 2,2 4,5,95 +/-1 77, 78, 1 M2 1,5 2 13,1 48239941 25,1 C, 23/4 V, 5 Hz 5 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 23/4 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 4823996 13,1 2/4 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 48239961 13,8 2/6 279,55 5,2,75 +/-1 77,6 58, 1 M2 1,5 2 2,31/1,33 48239962 15,9 4/2 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 48239963 13,1 4/4 279,55 5,2,75 +/-1 77,6 58, 1 M2 1,5 2 2,31/1,33 48239964 15,3 4/6 2855 1,1 7,,8 +/-1 82,7 6, 2 M2 1,5 25 4,22/2,43 48256815 2 6/2 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 48239966 13,4 6/4 2855 1,1 7,,8 +/-1 82,7 6, 2 M2 1,5 25 4,22/2,43 48256816 19,7 6/6 29 1,5 7,7,88 +/-1 84,2 63, 2 M25 1,5 25 5,8/2,92 48256817 23,1 7

C, 23/4 V, 6 Hz 6 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 23/4 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 33,37 3,9,78 +2/-5 75,7 58, 1 M2 1,5 2 1,54/,89 48239969 13,1 2/4 3345,55 4,4,75 +2/-5 77,6 56, 1 M2 1,5 2 2,29/1,32 4823997 15,2 2/6 344,75 6,5,8 +2/-5 8,9 6, 2 M2 1,5 25 2,87/1,65 48256818 17,4 4/2 3345,55 4,4,75 +2/-5 77,6 56, 1 M2 1,5 2 2,29/1,32 48239972 14,5 4/4 344 1,1 6,7,81 +2/-5 82,9 6, 2 M2 1,5 25 4,72/2,72 48256819 19,3 4/6 35 1,5 6,7,89 +2/-5 84,4 66, 2 M25 1,5 25 5,1/2,88 4825682 22,7 6/2 344,75 6,5,8 +2/-5 8,9 6, 2 M2 1,5 25 2,87/1,65 48256821 16,3 6/4 35 1,5 6,7,89 +2/-5 84,4 66, 2 M25 1,5 25 5,1/2,88 48256822 22,4 6/6 35 2,2 6,7,9 +2/-5 86,1 66, 1 M25 1,5 25 7,12/4,9 48256823 25,1 G, 1~23 V, 5 Hz 5 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 1~23 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 48229157 13,1 2/4 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 48229158 13,8 2/6 276,55 3,9,92 +/-1 7, 56, 1 M18 1,5 2 3,69 48229159 15,9 4/2 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 4822916 13,1 4/4 276,55 3,9,92 +/-1 7, 56, 1 M18 1,5 2 3,69 48229161 15,3 4/6 279 1,1 4,3,95 +/-1 75, 58, 1 M2 1,5 2 6,68 48229162 2 6/2 275,37 3,7,92 +/-1 67, 58, 1 M18 1,5 2 2,6 48229163 13,4 6/4 279 1,1 4,3,95 +/-1 75, 58, 1 M2 1,5 2 6,68 48229164 19,7 6/6 28 1,5 4,8,95 +/-1 76, 58, 1 M2 1,5 2 8,99 48229165 23,1 G, 1~23 V, 6 Hz 6 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 1~23 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 345,37 4,5,95 +/-1 74, 64, 1 M18 1,5 2 2,3 48229166 13,1 2/4 342,55 3,8,96 +/-1 74, 65, 1 M18 1,5 2 3,35 48229167 15,2 2/6 342,75 4,3,97 +/-1 75, 68, 1 M2 1,5 2 4,5 48229168 17,4 4/2 342,55 3,8,96 +/-1 74, 65, 1 M18 1,5 2 3,35 48229169 14,5 4/4 34 1,1 4,8,96 +/-1 79, 72, 1 M2 1,5 2 6,3 4822917 19,3 4/6 342 1,5 4,7,95 +/-1 76, 75, 1 M2 1,5 2 9,1 48229171 22,7 6/2 342,75 4,3,97 +/-1 75, 68, 1 M2 1,5 2 4,5 48229172 16,3 6/4 342 1,5 4,7,95 +/-1 76, 75, 1 M2 1,5 2 9,1 48229173 22,4 6/6 342 2,2 4,5,95 +/-1 77, 78, 1 M2 1,5 2 13,1 48229174 25,1 8

G, 23/4 V, 5 Hz 5 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 23/4 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 48239942 13,1 2/4 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 48239943 13,8 2/6 279,55 5,2,75 +/-1 77,6 58, 1 M2 1,5 2 2,31/1,33 48239944 15,9 4/2 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 48239945 13,1 4/4 279,55 5,2,75 +/-1 77,6 58, 1 M2 1,5 2 2,31/1,33 48239946 15,3 4/6 2855 1,1 7,,8 +/-1 82,7 6, 2 M2 1,5 25 4,22/2,43 4825686 2 6/2 275,37 4,6,78 +/-1 74,2 58, 1 M2 1,5 2 1,64/,94 48239948 13,4 6/4 2855 1,1 7,,8 +/-1 82,7 6, 2 M2 1,5 25 4,22/2,43 4825687 19,7 6/6 29 1,5 7,7,88 +/-1 84,2 63, 2 M25 1,5 25 5,8/2,92 4825688 23,1 G, 23/4 V, 6 Hz 6 Hz Size n P N I A /I N cos φ U N η L p Cable gland Maximum Tolerance frequency of starts I N Mat. No. [kg] 23/4 V [rpm] [kw] [%] [%] [db] [h ¹] [A] 2/2 33,37 3,9,78 +2/-5 75,7 58, 1 M2 1,5 2 1,54/,89 48239951 13,1 2/4 3345,55 4,4,75 +2/-5 77,6 56, 1 M2 1,5 2 2,29/1,32 48239952 15,2 2/6 344,75 6,5,8 +2/-5 8,9 6, 2 M2 1,5 25 2,87/1,65 4825689 17,4 4/2 3345,55 4,4,75 +2/-5 77,6 56, 1 M2 1,5 2 2,29/1,32 48239954 14,5 4/4 344 1,1 6,7,81 +2/-5 82,9 6, 2 M2 1,5 25 4,72/2,72 4825681 19,3 4/6 35 1,5 6,7,89 +2/-5 84,4 66, 2 M25 1,5 25 5,1/2,88 48256811 22,7 6/2 344,75 6,5,8 +2/-5 8,9 6, 2 M2 1,5 25 2,87/1,65 48256812 16,3 6/4 35 1,5 6,7,89 +2/-5 84,4 66, 2 M25 1,5 25 5,1/2,88 48256813 22,4 6/6 35 2,2 6,7,9 +2/-5 86,1 66, 1 M25 1,5 25 7,12/4,9 48256814 25,1 9

Characteristic curves n 29 rpm ; 2; n 29 rpm 5 5 1 15 Q [US.gpm] 2 4 6 8 1 12 Q [IM.gpm] 2/6,55 kw 15 4 H [ft] 3 2/4,37 kw 1 H [m] 2 2/2,37 kw 5 1..5 Q [m³/h] 1. 1.5 2. 2.5 3. 3.5. 8.2 Q [l/s].4.6.8 1. 2 NPSH [m] R NPSH [ft] R 6 Eta [%].1 P [kw] St=1.1 P [hp]....5 Q [m³/h] 1. 1.5 2. 2.5 3. 3.5 1799_C2_5Hz/ St = 1 P per stage 1

; 4; n 29 rpm 1 2 3 Q [US.gpm] 5 1 15 2 25 Q [IM.gpm] 5 4/6 1,1 kw 15 4 H [ft] 4/4,55 kw 3 1 H [m] 2 4/2,37 kw 5 1 NPSH 1 Q [m³/h] 2 3 4 5 6 7..5 Q [l/s] 1. 1.5 6 NPSH [ft] R 1 [m] R 6 Eta [%].2 P [kw] St=1.2 P [hp]. 1 Q [m³/h] 2 3 4 5 6 7 1799_C4_5Hz/. St = 1 P per stage 11

; 6; n 29 rpm 6 1 2 3 4 Q [US.gpm] 1 2 3 Q [IM.gpm] 6/6 1,5 kw 5 15 4 6/4 1,1 kw H [ft] 3 1 H [m] 2 6/2,37 kw 5 1 2 Q [m³/h] 4 6 8 1 NPSH..5 Q [l/s] 1. 1.5 2. 2.5 6 NPSH [ft] R 1 [m] R 8 Eta [%].2 P [kw] St=1.3 P [hp].. 2 Q [m³/h] 4 6 8 1 1799_C6_5Hz/ St = 1 P per stage 12

n 35 rpm ; 2; n 35 rpm 7 5 1 15 Q [US.gpm] 5 1 15 Q [IM.gpm] 2/6,75 kw 6 2 5 2/4,55 kw 15 4 H [ft] 3 1 H [m] 2 2/2,37 kw 5 1 NPSH 1 Q [m³/h] 2 3 4..2 Q [l/s].4.6.8 1. 1.2 15 4 NPSH R [ft] [m] R 6 Eta [%].15 P [kw] St=1.2 P [hp]. 1 Q [m³/h] 2 3 4 1799_C2_6Hz/. St = 1 P per stage 13

; 4; n 35 rpm 8 1 2 3 Q [US.gpm] 1 2 3 Q [IM.gpm] 4/6 1,5 kw 25 7 6 2 5 4/4 1,1 kw 15 4 H [ft] 3 1 H [m] 4/2,55 kw 2 5 1 NPSH 1 Q [m³/h] 2 3 4 5 6 7 8..5 Q [l/s] 1. 1.5 2. 8 2 NPSH R [ft] [m] R 6 Eta [%].3 P [kw].2.5 St=1 1 Q [m³/h] 2 3 4 5 6 7 8 1799_C4_6Hz/.4 P [hp].1 St = 1 P per stage 14

; 6; n 35 rpm 1 2 3 4 5 Q [US.gpm] 1 2 3 4 Q [IM.gpm] 8 6/6 2,2 kw 25 7 6 2 6/4 1,5 kw 5 15 4 H [ft] 3 H [m] 6/2,75 kw 1 2 5 1 2 Q [m³/h] 4 6 8 1 12 NPSH 8 1 Q [l/s] 2 3 2 NPSH R [ft] [m] R 8 Eta [%].4 P [kw] St=1.4 P [hp]. 2 Q [m³/h] 4 6 8 1 12 1799_C6_6Hz/ St = 1 P per stage 15

Dimensions and connections Dimensions F2 66 E2 E1 186 141 97 F1 38 95 172 213851-D Fig. 1: Dimensions [mm] Dimensions, 1~23 V, 5 Hz Size P N E1 E2 F1 F2 [kw] [mm] [mm] [mm] [mm] 2/2,37 138,5 11, 372,5 151,5 2/4,37 138,5 11, 45, 184, 2/6,55 138,5 11, 448, 227, 4/2,37 138,5 11, 372,5 151,5 4/4,55 138,5 11, 45, 184, 4/6 1,1 159, 155, 473, 227, 6/2,37 138,5 11, 372,5 151,5 6/4 1,1 159, 155, 44,5 194,5 6/6 1,5 176,5 16, 529,5 244,5 Dimensions, 1~23 V, 6 Hz Size P N E1 E2 F1 F2 [kw] [mm] [mm] [mm] [mm] 2/2,37 138,5 11, 372,5 151,5 2/4,55 138,5 11, 45, 184, 2/6,75 159, 155, 473, 227, 4/2,55 138,5 11, 372,5 151,5 4/4 1,1 159, 155, 43, 184, 4/6 1,5 176,5 16, 512, 227, 6/2,75 159, 155, 397,5 151,5 6/4 1,5 176,5 16, 479,5 194,5 6/6 2,2 176,5 16, 529,5 244,5 Dimensions, 23/4 V, 5 Hz Size P N E1 E2 F1 F2 [kw] [mm] [mm] [mm] [mm] 2/2,37 138, 19, 372,5 151,5 2/4,37 138, 19, 45, 184, 2/6,55 138, 19, 448, 227, 4/2,37 138, 19, 372,5 151,5 4/4,55 138, 19, 45, 184, 4/6 1,1 157, 133, 487, 227, 6/2,37 138, 19, 372,5 151,5 6/4 1,1 157, 133, 454,5 194,5 6/6 1,5 18, 145, 497,5 244,5 16

Dimensions, 23/4 V, 6 Hz Size P N E1 E2 F1 F2 [kw] [mm] [mm] [mm] [mm] 2/2,37 138, 19, 372,5 151,5 2/4,55 138, 19, 45, 184, 2/6,75 157, 133, 484, 227, 4/2,55 138, 19, 372,5 151,5 4/4 1,1 157, 133, 444, 184, 4/6 1,5 18, 145, 48, 227, 6/2,75 157, 133, 48,5 151,5 6/4 1,5 18, 145, 447,5 194,5 6/6 2,2 18, 145, 529,5 244,5 Connections A B C D Fig. 2: Connections A Discharge nozzle (G 1), internal thread C Suction nozzle (G 1 1/4), internal thread B Screw filler plug (G 1/4) D Screw drain plug (G 1/4) 17

General assembly drawing with list of components 8 341 932 11 525.1 4.4 433 525.5 525.3 213742-B 92.2 93.2 412.3 93.5 554.1 92.3 95 Fig. 3: General assembly drawing List of components 95 18.5 16 1-6 18.4 914.2 58.2 412.1 18.1 23 Part No. Part No. 1-6 Pump shroud 554.1 Washer 11 Pump casing 58.2 Cap 18.1/.4/.5 Stage casing 8 Motor 16 Cover 93.5 Screw plug 23 Impeller 95 Tie bolt 341 Drive lantern 914.2 Hexagon socket head cap screw 4.4 Gasket 92.2/.3 Nut 412.1/.3 O-ring 93.2 Safety device 433 Mechanical seal 932 Circlip 525.1/.3/.5 Spacer sleeve 95 Spring 18

Detailed designation Designation example Position 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 31 32 C o m e o C I 4 / 6 - A 4 B 3 2 F S 9 E 5 M W See name plate and data sheet See data sheet Position 1-7: designation Position 24: drive S Standard IEC Position 8-9: design C G Position 1: connection type I Position 11-13: size 1.438 (casing) / 1.431 (hydraulic system) EN-GJL-25 (casing) / 1.431 (hydraulic system) Internal thread 2 Size 2 4 Size 4 6 Size 6 Position 15-16: number of stages 1 1 stage 2 2 stages 3 3 stages 4 4 stages 5 5 stages 6 6 stages Position 17: trimmed impellers - No trimmed impeller Position 18: generation A Generation from 215 Position 25-27: motor rating and number of poles 71 IEC 71 8 IEC 8 9 IEC 9 Position 28: pressure class E PN1 Position 29: mains frequency 5 5 Hz, 2-pole 6 6 Hz, 2-pole Position 3: motor specification C M O U Position 31: PumpMeter W Position 32: standard design X 23/4 V, three-phase motor (IE2) 23 V, single-phase AC motor.37/.55 kw non-classified 23/4 V, three-phase motor (IE3) Without PumpMeter One or several non-standard components Position 19: standard of connection 4 Internal thread / EN ISO 228-1 Position 2: material variant A B EN-GJL-25 (casing) / 1.431 (hydraulic system) 1.438 (casing) / 1.431 (hydraulic system) Position 21-22: seal code 31 B V P F F 32 B V E F F Position 23: mechanical seal design F "Fixed" design 19

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