HORIZONTAL CENTRIFUGAL PUMPS

Debem manufactured resin-encased horizontal centrifugal pumps are pumps operated by a direct-drive motor (max 3000 rpm) for fast fluid transfer and/or drainage with flow rates ranging from 6 to 75 m3/hour. Their special open-impeller design allows pumping even with very dirty liquids having apparent viscosity up to 500 cps (at 20°C) and small suspended solids. There are two versions available with different internal mechanical seal depending on use, TL (lip seal) and TS (bellows seal).

 

Main features

- Available in polypropylene, PVDF;

- Positive suction head operation;

- Weldless;

- Mechanical lip or bellows seal;

- Usable even with extremely dirty liquids;

- Flow rates: from 6 to 75 m3/hour;

- Head: up to 38 m;

- Quick and easy maintenance;

- Inexpensive spares.

 

Descrption of the pump

Resin-encased horizontal centrifugal pumps feature a solid pump casing and a lantern for connecting the electric motor and inspection of the mechanical seal. The open impeller is fitted to the pump shaft that is integral with the drive shaft of the electric motor. The shaft mechanical seal is housed at the rear of the impeller. A = electric motor B = inspection lantern C = mechanical seal D = impeller E = delivery duct F = intake duct

How it works

The impeller is integral with the shaft and direct-drive electric motor and is rotated at a preset speed with the centrifugal effect producing suction on the intake side and discharge on the delivery side.

Look at the diagram of seal >>>

 

Installation

MB horizontal centrifugal pumps should only be installed with the shaft positioned horizontally in a positive suction head arrangement. Suitable devices should be fitted to prevent dry running and the formation of a vortex and possible air suction. Horizontal centrifugal pumps should only operate WHILST FILLED. Running dry or with air bubbles can cause damage to the mechanical seal.

Look at the diagram of possible installations >>>

 

Chemical compatibility

The type of liquid, temperature and working environment are factors to be considered when deciding on the best choice of construction materials for the pump and its correct chemical compatibility. The table below gives some examples of the most commonly-used substances:

chemical compatibility chart >>>