Linn-Pumpen GmbH

Series NGX - Self-Priming Pumps

Close-coupled self-priming shallow-well pump with built-in ejector.
A high-quality pump for domestic water supply. Designed with environmental considerations, featuring a stainless steel casing, brass alloy impeller with minimal use of plastic materials.

Applications
For drawing water out of a well. For lifting water containing air or other gases. For increasing water pressure from flooded suction applications.
As pressure boosting pump for central water systems with low pressure (follow local specifications if increasing network pressure).
For garden use. For washing with a jet of water.

Operating conditions
Liquid temperature: 0 °C to +35 °C.
Ambient temperature up to +40 °C.
Suction lift up to 9 m. Maximum permissible pressure in the pump casing: 8 bar. Continuous duty.

Motor
2-pole induction motor, 50 Hz (n = 2800 rpm).
NGX: three-phase 230/400 V ± 10%.
NGXM: single-phase 230 V ± 10%, with thermal protector.
Capacitor inside the terminal box. Insulation class F. Protection IP 54.
Classification scheme IE2 for three-phase motors from 0,75 kW.
Constructed in accordance with: EN 60034-1; EN 60034-30. EN 60335-1, EN 60335-2-41.

Special features on request
- Other voltages.
- Frequency 60 Hz (as per 60 Hz data sheet).


Materials

Component CA
Pump casing
Cr-Ni steel 1.4301 EN 10088 (AISI 304)
Casing cover Cr-Ni steel 1.4301 EN 10088 (AISI 304)
Impeller Brass P-Cu Zn 40 Pb 2 UNI 5705
Wear ring impeller-diffuser Cr-Ni steel 1.4301 EN 10088 (AISI 304)
Diffuser PPO-GF20 (Noryl)
Ejector PPO-GF20 (Noryl)
Shaft Chrome steel 1.4104 EN 10088 (AISI 430)
Cr-Ni steel 1.4305 EN 10088 (AISI 303) für NGX 5,6
Mechanical seal Carbon - Ceramic - NBR

Performance (n ≈ 2800 rpm)

3-phasig 230V 400V 1-phasig 230V P1 P2 Q
m³/h
0 0,3 1 2 2,4 3 3,2 3,6 4 4,5
A A A kW kW HP l/min 0 5 16,6 33,3 40 50 53,3 60 66,6 75
NGX 2/80 2,8 1,6 NGXM 2/80 3,8 0,8 0,55 0,75 H
(m)
46,8 43 35,2 26,7 23,9 20,2 19,1
NGX 3/100 3 1,7 NGXM 3/100 4,5 0,95 0,65 0,9 50 45,9 39,4 31,3 28,5 24,8 23,7 21,7
NGX 4/110 3,7 2,2 NGXM 4/110 5,4 1 0,75 1 41,6 40 36,6 31,9 30 27,3 26,4 24,6 23 21,1
P1 Max. power input. P2 Rated motor power output. H Gesamtförderhöhe in m.
  Tolerances according to ISO 9906, annex A.

3-phasig 230V 400V 1-phasig 230V P1 P2 Q
m³/h
0 0,5 1 2 2,4 3 4 4,5 5 5,5 6 6,5 7 8 8,4
A A A kW kW HP l/min 0 8,3 16,6 33,3 40 50 66,6 75 83,3 91,6 100 108 116 133 140
NGX 4/16 4,5 2,6 NGXM 4/16 7 1,6 1,1 1,5 H
(m)
57,5 54 47,3 40 37,5 34 28,5 26
NGX 4/18 4,5 2,6 NGXM 4/18 7 1,6 1,1 1,5 48 46 42,5 37 35 32,5 28,5 27 25
NGX 4/22 4,5 2,6 NGXM 4/22 7 1,6 1,1 1,5 36,5 34,8 33 30,5 29,5 28 25,3 24 23 22 21 20,3 19,5 18 17,5
NGX 6/18/A 7,5 4,3 NGXM 6/18 9,2 2 1,5 2 58 54,7 51,5 46 44 41,3 37 34,7 32,5 30,5 28,5
NGX 6/22/A 7,5 4,3 NGXM 6/22 9,2 2 1,5 2 46,5 45 43,5 40,5 39,3 37,5 35 33,5 32,5 31,2 30 28,5 27,5 25,5 24,5
P1 Max. power input. P2 Rated motor power output. H Gesamtförderhöhe in m.
  Tolerances according to ISO 9906, annex A.

Dimensions and weights

NGX2 - NGX3 - NGX4 self-priming stainless steel Jet-Pump - Dimensions
type   DN1 DN2 Dimensions (mm)    weight (kg)
ISO 228 fM a w h1 h2 H L m1 m2 m3 n1 n2 b s g1 w1  NGX    NGXM  
NGX 2/80 G1 G1 362 115 95 116 61 176 161 33 25 8 146 112 30 9 10 10,2 6,9 7,1
NGX 3/100 391 192 11,2 8,3 9,2
NGX 4/110 391 192 112 10,2 10,2
NGX 4/16 G1¼ G1 462 140 113 152 68 225 213,5 37,5 28 9,5 185 155 33 9,5 11 14,7 14,5 14,8
NGX 4/18 462 225 14,7 14,5 14,8
NGX 4/22 462 225 14,7 14,5 14,8
NGX 6/18/A G1¼ G1 488,5 140 113 152 68 240 213,5 37,5 28 9,5 185 155 33 9,5 11 17,5 17,8 18,2
NGX 6/22/A G1¼ G1 488,5 140 113 152 68 240 213,5 37,5 28 9,5 185 155 33 9,5 11 17,5 17,8 18,2

Subject to change!
Die Firma Linn-Pumpen GmbH übernimmt keine Haftung für Folgeschäden, welche aus evtl. fehlerhaften Informationen resultieren.

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