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Some Introduction about Circulation Pump - used for water circulation.

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Identification Code
E.g.: RS 25/6
RS: Screwed-end pump
25/: Connection size
6: Rated shut-off head [m]

Motor Data Single phase motor (EM) 2-(pole)-1~230V, 50Hz
 

Item NO.

Rated Power
P 2 max. W

Steps/Speed
d n 1/p.m
Power inpt
P1 W

Current
I A

Capacitor
¦Ì F/v

Motor Protect

RS25/2
RS30/2

9
4
2
Max 1900
  1600
eco 1100
46 49
30 34
19 21

0.21
0.15
0.09

1.6/400

1)

RS25/4
RS30/4

22
13
7
Max 2000
  1650
eco 1200
56 68
40 48
27 32

0.28
0.20
0.13

2.0/400

1)

RS25/6
RS30/6

37
22
12
Max 220
  1900
eco 1200
77 99
56 75
41 50

0.41
0.31
0.24

2.6/400

1)

 
1) Non-overloading motor-No extemal overload control required. Always refer to name plate date.
 

Technical Data
1. Suitable Fluids
Heating water to VDI 2035
Water/glycol mixtures: max. Mixing ratio 1:1
Hydrate coercions required for mixing ratio above 20%

2.Performance
Speed range: 1100-2200pm
Manual 3-speed control
Fluid temperature range:-10¡æ-+110¡æ
Max. Working prossure: 10 bars

3.Ambient Temperature
Permissible up to:40¡æ

4.Power
Mains power: 1~230V, 50Hz

5.Motor
Degree of protection:IP42
Insulation class: 1
Interference emission: EN 50081-1
Interference resistance: EN 50082-2

6.Construction Materials
Pump body: cast iron
Impeller: GF-PP
Shaft: stainless steel
Bearings: graphite

Scope of supply
Pump incl.2 union washers, packing and O&M manual

Accessories
Union connector fittings, thermal insulation

Mounting Positions
Pump shaft in the horizontal plane, terminal box optionally 3,6,9 or 12o¡¯clock

Pump Equipment
Screwed end single head pump
Manual 3-speed control
Non-overloading single-phase motor
Optional left or right cable entry
Special design versions RS25/4 and RS25/6
Bronze body, 180mm port-to-port
Cast iron body 130 mm port-to-port
 
 
Measurement-weights
 

Item NO.

Rp

G

l 0

l 1

l 3

l 4

a

b 1

b 2

b 3

b 4

Weight ca. kg

mm

I'N10

RS25/2

1 ¡å

1 1/2 ¡å M

180

97

90

79

33

100

92.5

54

73

2.4

RS30/2

1 1/4 ¡å

2 ¡å M

180

97

90

79

33

100

92.5

54

73

2.6

RS25/4

1 ¡å

1 1/2 ¡å M

180

97

90

79

33

100

92.5

54

73

2.4

RS30/4

1 1/2 ¡å

2 ¡å M

180

97

90

79

33

100

92.5

54

73

2.6

RS25/6

1 ¡å

1 1/2 ¡å M

180

97

90

79

33

100

92.5

54

73

2.4

RS30/6

1 1/4 ¡å

2 ¡å M

180

97

90

79

33

100

92.5

54

73

2.6

 

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