Pumped Fluids; General Description; Application; Types Of Use - Homa GRP16 Betriebsanleitung

2.10. Pumped fluids

Each pumped fluid differs in regard to composition, corrosiveness, abrasiveness, TS content and many other
aspects. Generally, our products can be used for many applications. For more precise details, see chapter 3, the
machine data sheet and the order confirmation. It should be remembered that if the density, viscosity or the
general composition change, this can also alter many parameters of the product.
Different materials and impeller shapes are required for different pumped fluids. The more exact your
specifications on your order, the more exactly we can modify our product to meet your requirements. If the area of
application and/or the pumped fluid change, we will be happy to offer supportive advice.
When switching the product into another pumped fluid, observe the following points:

Products which have been operated in sewage or waste water must be thoroughly cleaned with
pure water or drinking water before use.

Products which have pumped fluids which are hazardous to health must always be decontaminated
before changing to a new fluid. Also clarify whether the product may be used in a different pumped
fluid.

With products which have been operated with a lubricant or cooling fluid (such as oil), this can
escape into the pumped fluid if the mechanical shaft seal is defective.
Danger - explosive fluids!
It is absolutely prohibited to pump explosive liquids (e.g. gasoline, kerosene, etc.). The products are not
designed for these liquids!

3. General description

3.1. Application

Pump is suitable for pumping sewage, effluents, sludge and surface water. The pumps are used for installations
in public and private sector, trade and industry.
The pumps must not be used for pumping of liquids containing great quantities of abrasive solids, like sand or
stones. Before the pumping of chemically aggressive liquids, the resistance of the pump materials must be
checked.
The pumps are available in high quality materials of all components (Stainless steel, bronze).
Use in sip operation is not permitted. According to the type of installation and motor cooling, the machine
must be submerged in pumped liquid at least up to the top edge of the pump or motor housing.
The motor housing must always be completely submersed for wet installation without a water jacket.
The temperature of the conveyed medium may be up to 40 °C, or up to 60 °C for a short period. The maximum
density of the medium is 1040 kg/m³ and the pH may be from 6 – 11.
Stainless steel variants can be used at a pH of 4 - 14. However, the pH alone only serves as a guideline. In any
case, alongside the composition of the medium, the durability of the pump must be requested from the
manufacturer. Depending on the composition, it may be necessary to use special sealing materials.

3.2. Types of use

The motors are designed for continuous operation (S1), maximum 15 starts per hour.
The hydraulic is designed for permanent operation, e.g. supply of industrial water.

3.3. Construction

The pump consists of the motor and the pump housing as well as the impeller with cutter system which belongs to
it. All important parts of the pump are characterized by generous dimensioning.
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