INOXPA HLR, Installation, Service And Maintenance Instructions

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(A) 2021/11 5.Start-up 13
5. Start-up
Before putting the pump into operation read carefully the instructions on installation given in
Chapter 4.
Installation
.
5.1. START-UP
Read Chapter 8.
Technical Specifications
carefully. INOXPA will not assume responsibility for any
improper or incorrect use of the equipment.
Do not touch the pump or the piping while it is pumping products at a high temperature.
5.1.1. Checks to be carried out before putting the pump into operation
• Completely open the pipes’ suction and delivery shut -off valves.
• Check oil level of the pump. Add correct grade of oil as necessary to maintain level in center of oil sight glass (In the case
of first start-up: pumps are shipped with oil in the gearbox).
• If the liquid fails to flow toward the pump, fill it with the liquid to be pumped.
The pump must NEVER rotate without fluid inside it.
• Check that the power supply matches the rating indicated on the motor plate.
• Check that the direction of rotation of motor is the right one.
• If the pump has a single or double mechanical seal with buffer or barrier fluid, mount the auxiliary connection
corresponding to the values indicated in Chapter 8,
Technical Specification.
5.1.2. Checks to be carried out on putting the pump into operation
• Check to make sure that the pump is not making any strange noises.
• Check to see if the absolute inlet pressure is sufficient, in order to avoid cavitations in the pump. Consult the curve for
the minimum required pressure above the steam pressure (NPIPr).
• Monitor the delivery pressure.
• Check that there are no leaks in the sealed areas.
A shut-off valve should not be used in the suction pipe to regulate the flow rate. It must be
completely open during operation.
Monitor motor consumption in order to avoid a circuit overload.
Reduce flow and motor power consumption by reducing motor speed.
5.2. PRESSURE BY-PASS
When pump has a pressure by-pass, pump only can rotate in one direction. To reverse the direction of the pump’s rotation,
the assembly of the by-pass must also be reversed.
The valve's opening pressure depends on the fluid to be pumped, its viscosity, its rpm ..., and so before starting-up the pump,
the operator ought to adjust the pressure relief valve's opening pressure.
When an overflow valve or a pressure bypass is installed, the valve is adjusted to the maximum
working pressure of the pump. The end user must adjust the valve to the correct pressure.
When an overflow valve or a pressure bypass does not operate properly, the pump must immediately
be removed from service for repair.
The valve must be examined by the INOXPA technical assistance personnel.