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IM Vertical Chemical Pumps

	TECHNICAL CHARACTERISTICS: construction materials are  PP and PVDF; the pump is immersed into a tank; easy equalizing sub replacement; motor is replaceable without dismantling the pump; fully-removable; applicable to pumping highly contaminated liquids; no welded connections; high capacity ranging from 6 to 75 m3/h; maximal length is 1250 mm; supplied without motor; easy maintenance and parts' replacement. Vertical centrifugal pumps for pumping aggressive media out of tanks
DEBEM Vertical Semi-Submersible Pumps IМ Vertical semi-submersible pumps are designed for fixed installations with pump immersed into the tank. They are operated by a direct-drive electric motor (max 3000 r/min) for fast fluid drainage with flow rates ranging from 6 to 75 m3/hour and head up to 38 m. Vertical semi-submersible pumps feature a special design and no internal mechanical seals (subject to heavy wear), which ensures no accidental spillages to be collected in the tank. The open impeller allows continuous pumping even very dirty liquids with apparent viscosity up to 500 cps (at 20°C) and those containing small solid particles. The possibility to choose pump constructing materials ensures the most correct chemical compatibility with the fluid and / or the environment taking the temperature into account.
Operational Characteristics
Description
IM vertical semi-submersible pumps are made of polymers and consist of solid pump housing and a column fitted to the baseplate that supports the lantern which in its turn supports the electric motor. The direct-drive motor is connected with the help of a flexible coupling on the pump shaft. The open impeller is fitted to the other end of the shaft that is supported by a radial bearing. This pump’s special design allows the motor to be stripped without the need to disconnect the pump from the system. A = electric motor B = cardan C = lantern D = radial bearing E = outer column F = shaft sleeve G = ceramic bushing H = impeller I = delivery duct L = intake duct M = equalizing sub The way it works The impeller integrates with the shaft and direct-drive electric motor. It is rotated at a preset speed with the centrifugal force producing suction on the intake side and discharge on the delivery side.

Installation
IM vertical semi-submersible pumps should be installed only with the shaft positioned vertically. The pump should be immersed in the tank. There should be special devices fitted in order to prevent dry running and/or the formation of vortexes and possible air suction.

Attention!

IM vertical semi-submersible pumps should be operated  exclusively in submerged position with  the flow part fully filled.  Dry run or presence of air bubbles can lead to bushing damage!

IM Chemical Compatibility

The type of liquid, its temperature and application field are the factors to be taken into consideration when you choose construction materials for the pump and their correct chemical compatibility.

The following table gives some examples: