Suction Line - Seko MSA Série Manuel D'installation

5) keep available a first aid kit
6) observe local law safety regulations
7) Foundation height should be so as to facilitate maintenance operation, handling, oil refill and
drain, easy disassembling of pump head
8) Install the pump free of strain on its base, pump head connections and foundation
Precautions for electrical connection:
1) Electric motors and electrical components should be connected in accordance with local
regulations and by qualified personnel only.
2) Install overload protection or temperature sensor.
3) Check voltage, frequency, motor speed and power.
4) In hazardous areas special regulations must be applied.
For a good operation, the correct installation of the pump is fundamental:
Before carrying out hydraulic connections, make sure that the inside of pipes, tanks, etc. have
been thoroughly cleaned/washed. However we recommend the installation of a temporary filter
near to suction nozzle in order to stop plant residues and slags.
Connect pipes avoiding excessively stretching nozzles, or can install a pulse damper.
Install pipes correctly sized for the maximum flow rate of the pump, avoid necks and tortuosity
where air or gas could be entrapped.
Warning:
To prevent serious damages the suction and discharge lines must be properly designed,
sized and connected to the pump.

2.3 Suction line

Install pipe as short as possible and avoid tortuous paths. The negative pressure situation (suction
uplift) should be avoided, because it will affect accuracy of metering. If the temperature of fluid to
be dosed reaches the boiling point, the enough suction head should be provided to prevent the
fluid from entering suction end during suction line and vaporizing.
In case the pump needs to dose fluid with high viscosity, in order to reduce the loss of fluid, the
diameter of discharge tube must be 4 times as same as that of pump suction nozzle. If you can not
identify the dimension, please contact Standard constructor.
In order to prevent the impurities, do not close the tube to bottom of chemical tank. The suction line
must be airproof to ensure precise flow rate.
SPR0136037
The pipe diameter should be decided
in accordance with instantaneous ma
x flow rate (figure left), and the pipe
diameter should be equal to 1.5 the
diameters of the pump nozzles.
Rev. 1.5 8