Doc No: OMM50001243
Rev: C Page 14 of 68
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and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
4. A properly adjusted pressure relief valve or rupture disc must be installed
immediately downstream of the pump to prevent damage or injuries resulting from
over pressure or deadhead conditions. The relief valve discharge line must be as
large as the pipe outlet of the relief valve. Never install valves in the relief valve
discharge line or between the pump and relief valve. FMC recommends that the
discharge from the relief valve be returned to the tank or drain, not back into the
pump suction line.
5. It is recommended that a start-up bypass line and valve be installed in the
discharge line to allow flow to bypass the relief valve. This allows the pump to
start in an unloaded condition (no discharge pressure).
4.5
Multiple Pump Systems
Special consideration must be taken to avoid vibration, pulsation, or uneven flow
distribution problems when operating multiple reciprocating pumps using common
suction and discharge piping headers. It is recommended that the user contact FMC or
experienced industry consultants for assistance with the design of the system and pump
installation in these situations.
5.0
How to Start a Pump
CAUTION
Always take special precautions when starting a pump for the first time
or after any extended shutdown. Never assume that someone else has
properly prepared the pump and system for operation. Always check
each component of the system prior to every start-up.
The check list that follows is intended to be a general guide for starting a pump in a
typical installation. A copy of the check list is provided in Section 17.0 to allow it to be
copied and used at start up or at service intervals. Every installation is different, and
each may have different requirements to ensure safe and successful operation.
It is
the responsibility of the operator to determine the correct start-up procedure for
each installation.
1. Ensure that the drain plug(s) on the bottom of the pump crankcase have been
installed and are tight. Ensure that the oil level sight glass, if equipped, has been
properly installed.
2. Check the oil level to ensure that the pump is properly filled with non-detergent
motor oil or a synthetic oil as described in Table 3 and that the oil has not been
contaminated with water or other contaminants.
