Xylem FHF SHF - Manual (Page 18)

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1. General
The purpose of this manual is to provide the necessary information for the installation, use and mainte-
nance of bare shaft and FHF-SHF series pumps.
The user should read this manual before using the pump.
Improper use could damage the pump and cause the forfeiture of the warranty coverage.
When asking our sales and after-sales services for technical information or spare parts, please indicate
the model identification and construction numbers found on the nameplate.
The following instructions and warnings refer to the standard model; for any variations or characteristics
of the special versions please refer to the sales contract.
For any instructions or situations not referred to in this manual or in the sales documentation, please con-
tact our sales service.
2. Preliminary inspection
Upon delivery check the integrity of the packaging.
After unpacking the pump make sure that no damage has occurred during shipping.
Should the pump be damaged, please inform our agent within 8 days from the delivery date.
3. Applications
The FHF series pumps are suitable for the pumping of liquids free of aggressive mechanical or chemical
agents in many civil, agricultural and industrial applications.The SHF series pumps can also handle mo-
derately aggressive liquids.
4. Working limits
Only the hydraulic working limits are relevant as regards the bare shaft pump.
The pump is not suitable for dangerous or flammable liquids.
Maximum working pressure: FHF = 12 bar.
SHF = 12 bar.
Maximum temperature of pumped liquid: FHF = 85°C standard version;
120°C with FPM or Ethylen-propy-
lene elastomers.
SHF = 120°C.
Maximum number of starts per hour: 20 for power up to 5,5 kW
15 for power up to 15 kW
12 for higher power.
Delivery and head must always be within the rated values; any continuous running
beyond these values is anomalous and can damage the pump.
The nominal rotation speed is the one indicated on the pump's plate. (1)
Do not refer to the motor plate. Since the motor is suitable for connection with different
voltages at 50 and 60 Hz, its plate indicates the number of revolutions for both fre-
quencies.
The bare shaft pump cannot be coupled to the motor by means of a pulley because the base fastening
supports are not designed for this use.
(1) This pump, like any other centrifugal pump, can run at a different speed than the rated one if the impeller is replaced. Please contact our sales depart-
ment before carrying out such operations.
English
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001073145_L_F_02-11:001073145_L_E_12-10 21-02-2011 16:44 Pagina 18