4. General Information
4.1. DESCRIPTION
4.2. OPERATION PRINCIPLE
The PROLAC HCP SP pump is a closed-coupled centrifugal pump with a hygienic and horizontal
design, the single-stage, circular pump casing with axial suction and a tangential discharge.
The main pump components are pump casing, impeller, lantern cover and a shaft which is rigidly
coupled to the motor shaft.
The pump casing includes a separator tank and a non-return valve.
The motor is the standard IEC 60034 motor of type IM B35 is protected by a stainless steel shroud
and provided with height adjustable stainless steels legs.
The PROLAC HCP SP pump is a self-priming pump that eliminates the need for a vacuum pump or
other devices such as foot valves or additional pipes.
The pump needs to be primed with liquid only once before starting up. When the pump is turned
on, it sucks the air or gas present in the suction pipe, mixing it with the liquid in the pump body.
The centrifugal forces push the mixture of liquid and gas towards the separator tank where it loses
speed. Because of gravity, the liquid remains at the bottom of the separator tank and is driven back
to the pump body through the return pipe, while the air or gas is released through the discharge
pipe. In this way, the air or gas is continuously being removed from the suction pipe until the liquid
reaches the pump body and the pump begins to operate as a normal centrifugal pump.
It is very important the sucked air is released through the discharge pipe without any backpressure.
It is not advisable to reduce the hydraulic performance of the pump by resizing the impeller or
lowering the speed using a frequency converter since it will have negative repercussions on the
pump’s suction capacity.
The range of applications for each type of pump is limited. The pump was selected for a
given set of pumping conditions when the order was placed. Misuse of the pump or its
use beyond the operating limits may be dangerous or cause permanent damage to the
equipment. INOXPA shall not be liable for any damage resulting from the incompleteness
of the information provided by the purchaser (nature of the fluid, rpm, etc.).
ATTENTION
4.3. APPLICATION
Due to the choice of materials and its design, the PROLAC HCP SP pump is suitable for applications
requiring a high level of hygiene, gentle handling of the product and resistance to chemical attack.
The PROLAC HCP SP pump is particularly suitable for pumping liquids containing air or gas without
losing its pumping capacity. It can be used in the food-processing, pharmaceutical and chemical
industries. Its main application is the return of the CIP cleaning system.
For each type of pump, the hydraulic performance is given by the choice of impeller diameters and
speeds. The characteristic curves also show the power and NPSH requirements. The intended
use of the pump is defined by its characteristic curve and operating limits provided in chapter
.
General Information
INOXPA S.A.U.
01.031.30.03EN · (A) 2022/01
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