____________________________________________________________________________________
DESMI Pumping Technology A/S 3
Tagholm 1
9400 Nørresundby – Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
Fv : The max. permissible sum of the vertical forces on the two flanges.
Fh : The max. permissible sum of the horizontal forces on the two flanges.
F : The vectorial sum of the two forces Fv and Fh.
Mt : The max. permissible sum of the torches on the two flanges.
In connection with the permissible loads on the flanges the following is to be observed:
Where index "calc" is the values calculated by the user.
3 . INSTALLATION
3.1 MOUNTING/FASTENING
The pump can be mounted on board directly, and don’t need to spend extra time to align centre line of
pump and motor.
The pump must be installed with horizontal shaft and the pump casing discharge side vertically upwards.
The max. permissible loads on the flanges stated in paragraph 2.2. are to be observed.
The suction line to the pump is to be mounted carefully, so that it is absolutely tight, as even small leakages
may impede the priming. When pumping polluted liquids a strainer is necessary. The strainer must be
equipped with a sieve, the passage area of which is to be 3 x the area of the suction pipe. The mesh size
is to be 1-3 mm smaller than the height of the impeller blades of the pump in question.
The pipes are to be arranged in such a way that stresses resulting from fluctuations in temperature will not
have any effect on the pump. Because of the priming of the pump the pressure pipe is to be arranged so
that water locks in the pipe are avoided. While installing the pump the following must be observed:
- Avoid distortion of the base plate.
- Avoid distortion of the piping system.
At installations pumping hot or very cold liquids, the operator must be aware that it is dangerous
to touch the pump surface, and, consequently, he must take the necessary safety measures.
3.2 WIRING
Wiring to be carried out by authorised skilled workmen according to the rules and
regulations in force.
To Next Page
Loading...
