salmson S series, Инструкция по установке и эксплуатации

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ENGLISH
17
is reached before pump has primed. Measure liquid temperature and
modify alarm and stop trips settings accordingly.
Theoritically the pump could prime up to 8 meters but lifting height
will be limited to 6 meters to take suction line head losses into
account.
Check that the system available NPSH (NPSH
A
) is always higher than
the required NPSH (NPSH
R
) of pump when fluid level is at its lower
point.
Theoretical priming times (Nominal Dia of pipe = pump nominal dia) :
Pump size Pump speed
Priming time in seconds vs
suction lift height. [Tt]
2 3 4 5 6
S40 2900 21 47 78 135
S41 2900 27 57 93 153
S45 2900 12 22 35 47 62
S46 2900 5 8 13 23 34
S50 2900 17 29 46 83
S51 2900 19 34 55 87 155
S60 2900 19 29 42 56 77
S61 2900 10 15 21 29 41
S63 2900 7 10 14 19 33
S65 1450 30 58 83 186
S68 2900 9 14 19 26 38
S80( ‐ 2) 2900 36 49 62 74 95
S80 2900 21 53 95 132
S83 2900 14 20 26 31 39
S85 1450 32 63 100 152
S88 2900 4 7 11 18 26
S88 (210) 2900 5 8 11 15 20
S100 2900 19 30 38 45 54
S105 1450 38 69 110 167
S105 2300 9 13 17 21 25
S105 T114 1450 30 62 110 189
S108 2900 10 14 18 22 27
S120 1450 10 18 31 50 95
S150 1450 33 71 117 176
S160 1450 15 26 41 63 93
S170 950 28 51 85 129 181
Priming time depends on lifting height, length of the suction line, inner
diameter of suction pipe and specific gravity of the fluid.
It will be necessary to apply correction factors to know priming time :
Tt = table with Ha = Hg x d
Ta = Tt x L/Hg x (DT/DN)²
With :
Tt : theoretical priming time
Ha : suction height with specific gravity correction factor
d : Specific gravity of fluid
L : total length of suction line
DT : inner diameter of suction pipe
DN : pump suction flange nominal diameter
9 MAINTENANCE
9.1 GENERAL INFORMATION
Only properly trained and skilled staff should undertake
maintenance operations.
Only authorized personnel should undertake maintenance on
ATEX certified equipments. Make sure to avoid creation of
explosion hazard while proceeding to maintenance in a ATEX zone.
All technical documents delivered with the pump should be known
and should be available near the pump.
The maintenance crew should be informed about the risks linked to the
use of the pump and to the pumped fluids before they can start working
on the equipment (dangerous products, fluid and pump temperature,
pressurized parts, …). They should be equipped with all appropriated
individual safety protections (glasses, gloves, …) and should respect local
industrial and security rules.
Pump contains a part of pumped fluid even when it is at a
standstill. Drain and flush pump casing with care before starting
pump disassembly.
Appropriate lifting devices should be available to help personnel moving
heavy loads.
The maintenance area must be clearly identified. Install warning boards
with the words « WARNING : machine under repair ! » on the pump and
on the control cabinet.
Any work on the machine must be performed when pump is
stopped. Prior to any maintenance or repair work the motor
should be electrically isolated and secured against uncontrolled start.
Lock the main switch open and disconnect circuit breaker. Withdraw the
fuses if any.
WARNING : electrical equipments that must be powered on during the
maintenance work or pressurized equipments must be clearly identified.
End of maintenance operations : all protective parts that were removed
before maintenance should be reinstalled and all security devices should
be reactivated. Pump surrounding area should be cleaned.
9.2 MAINTENANCE AND PERIODIC
INSPECTIONS SCHEDULE
It is recommended to build up a maintenance and inspection plan
to ensure a reliable use of pump and to reduce malfunctions
hazards. Following check points should be included in this maintenance
plan :

Check state and working of securities and auxiliary systems,

Check and adjust gland packing (if any) for visible leakage,

Check for any leaks from pump gaskets and flanges seals,

Check lubricant level and aspect of oil (oil lubricated bearings) in
bearing bracket,

Check running time and replacement frequency of lubricants / ball
bearings,

Check the bearing bracket housing surface temperature on ball
bearings area,

Check dirt and dust is removed from pump and motor ,

Check coupling alignment (depending on pump variant),

Check if there is unusual noises (cavitations, hissing, purring, …) or
excessive vibrations.