ITT Flygt 5150.350, Инструкция по установке, эксплуатации и обслуживанию

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Position Part Description
7
Mechanical seals One inner and one outer seal in a combination of materials:
• Tungsten carbide
• Silicon carbide RSiC
• Aluminium oxide Al
2
O
3
• Corrosion-resistant cemented carbide WCCR
8 Seal housing Includes a coolant that lubricates and cools the seals; the housing acts as a
buffer between the pumped liquid and the electric motor.
9 Inspection
chamber
The inspection chamber is equipped with a FLS10 leakage sensor in order
to prevent damages on the motor.
10
Main bearing The bearing consists of a two row angular contact ball bearing.
11
Shaft The shaft is stainless steel, with an integrated rotor.
12 Cooling without
cooling jacket
The pump is cooled by the ambient liquid.
13
Support bearing
The bearing consists of a two-row ball bearing.
14
Agitator The agitator stirs the slurry in order to prevent deposition of material on the
sump bottom. Use of the agitator is optional.
External cooling
The following items are required in order to use external cooling:
• Cooling jacket
• Inlet/outlet pipes with M16 threads (replacing the coolant plugs)
• External cooling system (hose, water source, etc.)
Contact your local ITT representative for more information.
Monitoring equipment
The following applies to the monitoring equipment of the pump:
• The stator incorporates three thermal contacts connected in series that activate the alarm and stops
the pump at overtemperature
• The thermal contacts open at 140°C (285°F).
• Ex-approved pumps must have thermal contacts connected to the control panel.
• The sensors must be connected to either the MiniCAS II monitoring equipment or an equivalent
equipment.
• The monitoring equipment must be of a design that makes automatic restart impossible.
• The pump is supplied with an inspection sensor FLS10 for sensing the presence of any liquid in the
inspection chamber.
• The label in the junction box shows if the pump is equipped with optional sensors.
Optional sensors
Thermistor Thermistors are optional sensors for measuring the temperature. They are connected in
series in the stator and activate the alarm at overtemperature. The sensors are only optional
for standard pumps.
NOTICE:
Thermistor must never be exposed to voltages higher than 2.5 V. If the voltage exceeds this
value, for example when the control circuit is tested, the thermistors will be destroyed.
Product Description (Continued)
12 Flygt 5150.350, 5150.360 Installation, Operation, and Maintenance Manual