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Linn-Pumpen GmbH

CA Self-Priming Liquid Ring Pumps

Close-coupled self-priming liquid ring pumps with star impeller.
CA: version with pump casing and lanter bracket in cast iron.
B-CA: version with pump casing and lanter bracket in bronze (the pumps are supplied fully painted).

Download PDF catalog
self-priming liquid ring pump type CA
liquid ring pump - self-priming - cast iron or bronze

Applications

For clean liquids without abrasives, without suspended solids,
non-explosive, non-aggressive for the pump materials. If the liquid to be pumped has entrained air or gas or the flow in the suction pipe is not stable. For drawing water out of a well. For increasing network pressure (follow local specifications).

Operating conditions

  • Liquid temperature from -10 °C to +90 °C
  • Ambient temperature up to 40 °C
  • Negative suction pressure up to 9 m
  • Continuous duty

Motor

2-pole induction motor, 50 Hz (n = 2900 rpm).
CA: three-phase 230/400 V ± 10%.
CAM: 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)
  • Protection IP 55
  • Special mechanical seal
  • Higher or lower liquid or ambient temperatures.

Materials

Components CA B-CA
Pump casing
Lantern bracket
 Cast iron GJL 200 EN 1561 Bronze G-Cu Sn 10 EN 1982
Impeller Brass P- Cu Zn 40 Pb 2 UNI 5705
Shaft Chrome steel 1.4104 EN 10088 (AISI 430)
 Cr-Ni-Mo steel 1.4401 EN 10088 (AISI 316)
Mechanical seal Carbon - Ceramic - NBR

Performance n ≈ 2900 rpm

3phasig 230 V 400 V 1phasig 230 V P1  P2   Q
m³/h  		 0,12 0,24 0,38 0,48 0,6 0,75 1 1,2 1,5 1,89 2,4
A A A  kW    kW   HP  l/min   2 4 6,3 8 10 12,5 16 20 25 31,5 40
CA 60E
B-CA 60E		 1,7 1 CAM 60E
B-CAM 60E		 1,6 0,26 0,15 0,2 H
(m)		 20 18 15,5 13 10,5 6,5               
CA 80E
B-CA 80/A  		 2,8
2,3		 1,6
1,3		 CAM 80E
B-CAM 80/A  		 3,3
3,6		 0,72 0,45 0,6    36 35 33,5 31,5 29 26 22 15  
CA 90/A
B-CA 90/A 		 3 1,7 CAM 90/A
B-CAM 90/A 		 4,5 0,9 0,55 0,75    42 41 40 37 34 30 25 17
CA 91/A
B-CA 91/A		 3,7 2,2 CAM 91/A
B-CAM 91/A		 5,7 1,2 0,75 1    53 51 48 44 39 34 26,5 17
P1 Maximum power input. B-CA = Bronze construction. H Total head in m.
P2 Rated motor power output. Toleranzen nach ISO 9906, Anhang A.

Dimensions and weights

CA self-priming pump in cast iron - dimensions
 TYPE     DN1 DN2  mm       kg  
 ISO 228    a    f    h1    h2    h3    h4    m1    m2    n1    n2    b    s   l2 l3  w   g
CA60 E G ½ G ½ 18 256 63 65 103 158 96 80 122 100 22 7 45 14 103 8 6
CA 80E G ¾ G ¾ 23 272 63 90 126 158 96 80 122 100 22 7 55 17 109 8 7,6
CA 90/A  G1    G 1   28 318 71 112 142 182 106 90 134 112 22 7 63 21 128 10 10,8
CA 91 /A  G1    G 1   28 318 71 112 142 182 106 90 134 112 22 7 63 21 128 10 11,4
B-CA Self-Priming pump in Bronze - dimensions
 TYPE     DN1 DN2  mm       kg  
 ISO 228    a    f    h1    h2    h3    h4    m1    m2    n1    n2    b    s   l2 l3  w   g
B-CA 60E G ½ G ½ 18 256 63 65 103 158 96 80 122 100 22 7 45 14 103 8 6,8
B-CA 80/A   G ¾ G ¾ 23 307 71 90 134 182 106 90 134 112 22 7 55 17 122 10 10
B-CA 90/A    G 1    G 1   28 318 71 112 142 182 106 90 134 112 22 7 63 21 128 10 13,1
B-CA 91 /A    G 1    G 1   28 318 71 112 142 182 106 90 134 112 22 7 63 21 128 10 13,9