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Linn-Pumpen GmbH

Centrifugal Pumps Type C with open impeller

Close-coupled centrifugal pumps with open impeller.
Free-flow impeller (vortex or recessed impeller) for type C 16/1E.

C: version with pump casing and lanter bracket in cast iron.
B-C: version with pump casing and lanter bracket in bronze (the pumps are supplied fully painted).

Download PDF catalog
centrifugal pump with open impeller type C
centrifugal pumps with open impeller - type C with casing in cast iron - type B-C with casing in bronze

Applications

For moderately dirty liquids or emulsions.
For industry and agriculture.

Motor

2-pole induction motor, 50 Hz (n = 2900 rpm).
C: three-phase 230/400 V ± 10%.
CM: single-phase 230 V ± 10%, with thermal protector.
Capacitor inside the terminal box.
Insulation class F. Protection IP 54.
Motor suitable for operation with frequency converter from 1,1 kW.
IE3 efficiency class for three-phase motors (IE2 up to 0,65 kW).
Constructed in accordance with: EN 60034-1; EN 60034-30. EN 60335-1, EN 60335-2-41.

Operating conditions

Liquid temperature from -10 °C to +90 °C.
Ambient temperature up to 40 °C.
Total suction lift up to 8 m.
Maximum permissible working pressure: 6 bar.
Maximum size of solids: 4 mm.
Continuous duty (S3 60% for C 22E).

Special features on request

  • Other voltages.
  • Frequency 60 Hz (as per 60 Hz data sheet).
  • Protection IP 55.
  • Special mechanical seal
  • Higher or lower liquid or ambient temperatures.
  • Motor suitable operation with frequency converter.

Materials

Component C B-C
Pump casing
 Cast iron GJL 200 EN 1561 Bronze CC480K EN 1982
Lantern bracket Cast iron GJL 200 EN 1561 Bronze CC480K EN 1982
Impeller Brass CW617N EN 12165
Shaft Chrome steel
1.4104 EN 10088 (AISI 430)		 Cr-Ni-Mo steel
1.4401 EN 10088
(AISI 316)
Chrome-nickel steel 1.4305 EN 10088 (AISI 303)
für C 41E
Mechanical seal Carbon - Ceramic - NBR

Performance ( n ≈ 2900 rpm )

3~ 230V 400V 1~ 230V P1 P2 Q
m³/h		 0,6 0,9 1,2 1,5 1,8 2,4 3 3,6 4,8 6 6,6
 A    A    A    kW    kW    HP   l/min 10 15 20 25 30 40 50 60 80 100 110
C 16/1E
B-C 16/1E		 1,7 1 CM 16/1E
B-CM 16/1E		 1,2 0,16 0,15 0,2 H
(m)		 5 4,7 4,4 4,2 4 3,6          
C 20E
B-C 20/A		 1,9
2,3		 1,1
1,3		 CM 20E
B-CM 20/A		 2,5
2,8		 0,4 0,37 0,5     12,3 12,2 12 11,5 10,8 9    
C 22/1E
B-C 22/1/A		 2,4
2,3		 1,4
1,3		 CM 22/1E
B-CM 22/1/A		 3
3,6		 0,8 0,45 0,6     18 18 17,5 17 16 14 10 7,5
C 22E
B-C 22/A		 3 1,7 CM 22E
B-CM 22/A		 3,5
4,5		 0,9 0,55 0,75     20,5 20 20 19 18,5 16,5 14 12
P1 Maximum power input. B-C, B-CM = Bronze construction. ρ = Density 1000 kg/m3 . Tolerances according to ISO 9906, annex A.
P2 Rated motor power output. H Total head in m. υ = Kinematic viscosity max 20 mm2/sec.
3~ 230V 400V 1~   230V P1 P2 Q
m³/h		 3,6 4,8 6 6,6 8,4 9,6 10,8 12 13,2 15
 A    A    A    kW    kW    HP   l/min 60 80 100 110 140 160 180 200 220 250
C 4/1/A 3 1,7 CM 4/1/A 4,5 0,91 0,55 0,75 H
(m)		 15,6 15,4 15,2 15 14 13,1 12 10,8 9,5 7
C 4/A
B-C41 /1E		 3,7
4		 2,2
2,3		 CM 4/A
B-CM 41 /1E		 5,7
5,8		 1,2 0,75 1 17,7 17,9 17,9 17,8 17,4 16,9 16,2 15,3 14,2 11,9
C 41E
B-C41E		 5 2,9 CM 41E
B-CM 41E		 7,4 1,6 1,1 1,5   22,4 22,3 22,2 21,5 21 20,5 19,5 18 15,5
P1 Maximum power input. B-C, B-CM = Bronze construction. ρ = Density 1000 kg/m3 . Tolerances according to ISO 9906, annex A.
P2 Rated motor power output. H Total head in m. υ = Kinematic viscosity max 20 mm2/sec.

Dimensions and weights

Standard construction

 TYPE    kg  
C16/1E   5,2
CM 16/1E   5,2

 

Bronze-constuction B-C

 TYPE   kg
B-C 16/1E   5,6
B-CM 16/1 E   5,6
centrifugal pump with free-flow impeller for dirty liquids type C16
 TYPE    mm   kg 
 h2    h4   I1 I2 I3 C CM
C 20E   90 5 67 82 60 6,8 6,8
C 22/1 E -C 22E   110 17 77 94 71 8 -8,3   8 -8,3  
centrifugal pump with open impeller in cast iron type C
bronze centrifugal pump with open impeller type B-C - dimensions
 TYPE    TYPE   DN1 DN2 mm   kg  
ISO228  a    f   h1  h2    h3    h4   m1  m2   n1  n2    b    s   I1 I2 I3  w   g C CM B-C B-CM
- B-C 20/A    G 1   G 1 35 303 71 90 182  -  106 90 134 112 22 7 70 84 60 105 10  -   -  9,1 9,1
- B-C 22/1/A
B-C 22/A		  G 1   G 1 35 303 71 110 182 9 106 90 134 112 22 7 81 93 71 106 10  -   -  9,3
9,6		 10,3
10,6
C 4/1/A
C 4/A		 - G 1½ G 1½ 43 304 71 160 182 18 106 90 134 112 22 7 85 108 78 100 10 10,8
11,8		 11,8
12,8		   

C 41E		 B-C 41/1 E
B-C 41E  		 G 1½ G 1½ 43 380 80 160 208 9 125 100 155 125 30 9,5 85 108 78 132 10
18,5
19,3		 16,3
19,2		 17,9
20,1