Download Magnetically coupled pumps

Issued March 1997 232-3440
Data Pack D
Magnetically coupled pumps
Data Sheet
RS stock numbers 266-597, 266-979
General description
Installation
The RS magnetically coupled pumps are centrifugal
types of fully encapsulated construction. The pumps
are rated for continuous duty and are ideally suited for
recirculation applications. The units can be used with
mild acids or alkalis, since the only components in contact with the pumped fluid are plastic and ceramic with
a viton O-ring. (See ’Chemical compatibility’.)
The pump can be connected to pipework using suitable fittings such as jubilee clips. The pump mounting
plates have several fixing options (Figure 1). Flexible
hoses with internal diameters of 22mm (RS stock no.
266-597) or 13mm (RS stock no. 266-979) may be used
(avoid overtightening as this may cause damage to the
ports). The pump and pipework should be adequately
supported and correctly fitted to avoid shock loading
and strain on the pump and its ports. The pump should
not be mounted vertically with the ports below the
motor.
Motor specification
RS stock no. 266-597
Supply voltage________ Single phase 240Vac 50/60Hz
Input power ________________________________ 84W
Output power ______________________________ 18W
Maximum current ___________________________ 0.7A
Maximum flow rate _______________________ 35 l/min
RS stock no. 266-979
Supply voltage________ Single phase 240Vac 50/60Hz
Input power ________________________________ 51W
Output power ______________________________ 10W
Maximum current ___________________________ 0.5A
RS stock no.
266-597
RS stock no.
266-979
Figure 1 Dimensions
4 holes dia. 4.5
F
39
6
77.8
A
B
C
D
E
F
4 holes dia. 5.0
RS stock numbers
266-597
266-979
191
150
22
13
46
27.5
59
50
15
18.6
76
54.5
74
33
E
15.9
C
B
112
B
39
98
D
1.85 METRES 3
CORE CABLE
A
104
Dimensions
56
232-3440
Chemical compatibility list
Figure 2 Pump performance
Tested with clean cold water
4.0
head in metres
3.5
3.0
2.5
RS stock no.
266-597 @ 60Hz
2.0
1.5
1.0
RS stock no.
266-979 @ 60Hz
RS stock no.
266-979 @ 50Hz
0.5
0
5
10
15
20
25
Flow in litres per minute
30
35
Operation and maintenance
The pump should have flooded suction since it does
not self prime. Filters or restrictions should not be
situated before the pump inlet. When priming, operate
the pump in short 10 second cycles to facilitate the
cleaning of air. Ensure that there are no leaks or
blockages in the associated pipework. The pump
should not be operated against a closed valve for
longer than 30 seconds. Where the pumped fluid
causes coating or deposition, periodic cleaning of
pump internals may be necessary. This can be
achieved by flushing through with an appropriate
cleaning agent. The pump casing should be
adequately ventilated to avoid overheating the motor.
The motor is protected by the magnetic coupling
should the impeller stall.
Do not run pump dry.
Aluminium chloride (10%)
Ammonium sulphate (50%)
Aniline
Antimony trichloride
Arsenic acid
Barium chloride
Boric acid
Calcium chloride
Castor oil
Chromic acid
Citric acid
Cod liver oil
Copper sulphate
Cresols
Diesel oil
Diethylene Glycol
Ferric chloride
Formaldehyde (40%)
Freon - 113
Furfural
Glycerol
Hexane
Hydrochloric acid (10%)
Hydrochloric acid (36%)
Hydrogen peroxide (35%)
Hydrogen sulphide gas
Iso-propanol
Lactic acid (90%)
Linseed oil
Lubricating oil
Magnesium chloride
Mercuric chloride
Molasses
Nickel chloride
Oleic acid
Olive oil
Paraffin oil
Petrol
Potassium cyanide
Potassium permanganate (25%)
Potassium sulphate
Rape seed oil
Silicone fluids
Silver nitrate
Sodium carbonate (10%)
Sodium chloride (25%)
Sodium cyanide
Sodium nitrate
Stannic chloride
Sulphur dioxide
Tetrachloroethane
Tricesyl phosphate
Water (distilled)
Water (sea)
White spirit
Wine
Zinc chloride (aq sol)
The information provided in RS technical literature is believed to be accurate and reliable; however, RS Components assumes no responsibility for inaccuracies or
omissions, or for the use of this information, and all use of such information shall be entirely at the user’s own risk.
No responsibility is assumed by RS Components for any infringements of patents or other rights of third parties which may result from its use.
Specifications shown in RS Components technical literature are subject to change without notice.
RS Components, PO Box 99, Corby, Northants, NN17 9RS
An Electrocomponents Company
Telephone: 01536 201234
© RS Components 1997