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Linn-Pumpen GmbH

MXH 32, 48 Horizontal Multi-Stage Close Coupled Pumps

chrome-nickel stainless steel

Horizontal multi-stage close coupled pumps in chrome-nickel stainless steel. Compact and robust construction,with compact lantern bracket and motor with feet. Single-piece barrel casing, with front suction port above pumps axis and radial delivery at top. Filling and draining plugs on the middle of the pump, accessible from any side (like the terminal box).

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MXH32-48 stainless steel pumps
close coupled stainless steel pump type MXH32-48 for industrial use

Applications

For water supply. For clean liquids, without abrasives, which are non-aggressive for stainless steel (with suitable seal materials, on request).
Universal pump, for civil and industrial applications, for garden use and irrigation.

Operating conditions

Liquid temperature from - 15 °C to + 110 °C.
Ambient temperature up to 40 °C.
Maximum permissible pressure in the pump casing: 10 bar.

Motor

2-pole induction motor, 50 Hz (n = 2900 rpm).
MXH: three-phase 230/400 V ± 10% up to 3 kW;
400/690 V ± 10% from 4 to 7,5 kW. Insulation class F. Protection IP 54.
Classification scheme IE2.
Constructed in accordance with: EN 60034-1; EN 60034-30.

Special features on request

  • Pump with Victaulic ports (MXH-V)
  • Pump with flanged ports (MXH-F)
  • Other voltages
  • Frequency 60 Hz (as per 60 Hz data sheet)
  • Protection IP 55
  • Special mechanical seal
  • Seal rings in FPM
  • Higher or lower lambient temperatures
  • Motor suitable operation with frequency converter

Materials

Component

MXH, MXHM
Pump casing
Stage casing
Wear ring
Casing cover
Spacer sleeve
 Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
Spaltring PTFE
Pump shaft
Plug		 Chrome-nickel steel 1.4305 EN 10088 (AISI 303)
Mechanical seal with seat
according to ISO 3069-KU		 Ceramic alumina, carbon, EPDM
(Other materials on request)

Performance ( n ≈ 2900 rpm )

3-phasig   230V 400V P2   Q
m³/h		 0 15 21 24 27 30 33 36 39 44 50
 A    A    kW    HP    I/min   0 250 350 400 450 500 550 600 650 733 833
 MXH3201/A   9,15 5,3 2,2 3 H
(m)		 18,4 16,3 15,3 14,8 14 13 12 10,8 9,3 6  - 
 MXH3202/A      9,6 4 5,5 37 33 31 30 28,5 27 25 23 20,5 15 7,5
 MXH3203/A      12 5,5 7,5 55,5 50 47 45,5 43 40,5 38 35 31 23 10
 MXH3204/A      16 7,5 10 74,5 67 63 61 59 56 53 49 44 34 16,5
  H Gesamtförderhöhe in m. Versuchsergebnisse mit sauberem und kaltem Wasser, ohne Gasgehalt.
P2 MotorRated Power. Toleranzen nach ISO 9906, Anhang A. Ein Sicherheitszuschlag von + 0,5 m auf dem NPSH-Wert ist erforderlich.
3-phasig   230V 400V P2   Q
m³/h		 0 21 27 33 39 45 48 51 54 60 66
 A    A    kW    HP    I/min   0 350 450 550 650 750 800 850 900 1000 1100
 MXH 4801/A    11 ,5   6,6 3 4 H
(m)		 20 18 17 16 14,5 12,5  11 ,5   10,5 9,5 7  - 
 MXH4802/A    12 5,5 7,5 41 35,3 33 30,5 27,5 24,5 22,5 21 19 14 7,5
 MXH4803/A      16 7,5 10 60,5 53 50 46 42,5 38 35 32,5 29 22,5 16
  H Gesamtförderhöhe in m. Versuchsergebnisse mit sauberem und kaltem Wasser, ohne Gasgehalt.
P2 MotorRated Power. Toleranzen nach ISO 9906, Anhang A. Ein Sicherheitszuschlag von + 0,5 m auf dem NPSH-Wert ist erforderlich.

Dimensions and weights

Threaded ports

stainless steel industrial pumps type MXH32-48 - dimensions

TYPE DN1 DN2 mm  kg  
ISO228  L    L1    L2    h3    m1    m2    n1    n2    z    b    s    w    g1    g2  
 MXH 3201/A    G 2 ½  G2   501 120,5 216 280 205 175 170 130 15 54 10 92,5    6 29,4
 MXH 3202/A    G 2 ½  G2   515 120,5 233 290 205 175 180 140 15 54 10 112    6 38,5
 MXH 3203/A    G 2 ½  G2   582 166,5 251 310 280 250 258 190 15 68 12 84 38    50
 MXH 3204/A    G 2 ½  G2   628 212,5 297 310 280 250 258 190 15 68 12 84 38    57,5
 MXH 4801/A    G3    G 2 ½ 545 136 263 290 205 175 180 140 15 54 10 128,5    6 38
 MXH 4802/A  G3    G 2 ½ 566 136 235 310 280 250 258 190 15 68 12 100 38    49,5
 MXH 4803/A    G3    G 2 ½ 628 197,5 297 310 280 250 258 190 15 68 12 100 38    58

Victaulic ports

Industrial Pump-MXH32-48-Victaulic-ports - dimensions
TYPE DN1 DN2 mm
mm mm  LV    L1V    L2V  
 MXH-V 3201/A    76,1 (DN65)    60,3 (DN50)   541 160 256
 MXH-V 3202/A  76,1 (DN65)    60,3 (DN50)   555 160 273
 MXH-V 3203/A    76,1 (DN65)    60,3 (DN50)   622 206 291
 MXH-V 3204/A    76,1 (DN65)    60,3 (DN50)   668 252 337
 MXH-V 4801/A    88,9 (DN80)    76,1 (DN65)   585 175 303
 MXH-V 4802/A  88,9 (DN80)    76,1 (DN65)   606 175 275
 MXH-V 4803/A    88,9 (DN80)    76,1 (DN65)   668 237 337

Flange-connections

Industrial pumps in stainless steel type MXH32-48 - flange connection - dimensions
TYPE DN1 DN2 mm
mm mm  LF    L1F    L2F  
 MXH-F 3201/A 65 50 531 151 246
 MXH-F 3202/A 65 50 545 151 263
 MXH-F 3203/A   65 50 612 197 281
 MXH-F 3204/A   65 50 658 243 327
 MXH-F 4801/A 80 65 565 156 283
 MXH-F 4802/A 80 65 586 156 255
 MXH-F 4803/A   80 65 648 218 317

Flansch* EN 1092-2

counter flange - dimensions
DN DE DK DG Löcher
N. Ø
50 165 125 99 4 19
65 185 145 118 4 19
80 200 160 132 8 19

* ASME 150 lb (ex ANSI 150 lb)