Mas Grup
4
4.1.4. Shaft
The shaft, impeller and other parts of the pump is designed to be
dismountable without moving (dislodge) the suction and discharge pipes
and volute of the pump. In this way, the installation and maintenance
operations can be performed very easily.
4.1.5. Bearing and Lubrication
Rolling bearings are not used in INM type pumps. Motor bearing is
enough for countervailing all axial and radial forces.
4.1.6. Seals
In standard production, various mechanical seal types (e.g. bellow type,
spring actuated type) are used for sealing.
4.2. Construction of Pump Group
4.2.1. Drive
TEFC (Totally Enclosed Fan Cooled) 3 phase, squirrel caged, in
accordance to DIN 42673, IM 2001B5 type electrical motor which
complies with DIN IEC and VDE is used to drive the pump in proper
speed and power.
Specifications of electrical motor;
Isolation class:
F
Protection class:
IP 54-IP 55
Frequency:
50 Hz
Running type:
S1
Start up type:
Up to 4 kW, 3x380 V (Y)
More than 4 kW,
3x380V (Δ)+(Y/
Δ
)
4.2.2. Coupling and Coupling Guard
At INM type pumps, a flexible coupling is used. A coupling guard is given
in accordance with EN 953.
Pump can only be run with a couplingguard in
accordance with EN 953 according to safety
instructions.
If there is no coupling cover, it is provided by the
operator.
5. TRANSPORT AND STORAGE
Suction, discharge and all auxiliary fittings must be closed during
transport and storage. Dead-end covers must be removed while the pump
unit is being installed.
5.1. Transport
Pump and pump group must be carried safely to the installation location
by lifting equipments.
CAUTION
Current general lifting safety instructions must be applied. Please use a
suspension system shown in figure while you are carrying and lifting the
pump unit. The suspension rings may be broken because of the
excessive load and may result in a
damage of the pump. Prefer fabric
cable for suspension.
Figure 2:
Transport of Pump Group
Incorrect lifting may damage the pump unit and cause injuries.
Damages caused in transport
Check the pump when it is delivered to you. Please let us know of there is
any damage.
5.2. Storage
Please keep the unit clean and dry area during storage.
If the pump is out of use for a long time, please consider the instructions
below.
1. If there is water inside the pump, drain it.
2. Clean the pump casing and impeller by jetting clean water for a short
time.
3. Empty water inside the pump casing, suction line and discharge line.
4. Add small amount of antifreeze inside the pump casing if it is not
possible to empty it completely. Rotate the pump shaft by hand to mix
the antifreeze.
5. Close the suction and discharge exits with gasket
6. Spray an anti-corrosive into the pump casing.
7. Rotate the pump shaft by hand once in every month, in order to protect
it from freezing and to lubricate the bearings.
6. ASSEMBLY / INSTALLATION
In our standard production, the pump and the motor have been installed
in a common base plate.
6.1. Location of Installation
Pump shall be installed in a location where the control and the
maintenance of the pump are easily made. The pump room shall be
suitable for operation of lifting systems such as freight elevator, forklift,
etc.
The pump group should be installed in the lowest possible location of the
pumping system in order to achieve the highest suction pressure.
6.1.1. Location of Installation- Local Ambient Temperature
When the local ambient room temperature e40
o
C in a pumping
system, suitable ventilation should be provided in order to remove the
heat dissipated to the environment and supply fresh air.
