Goulds Pumps API 3171 - IOM - Manual (Page 30)

Steam lines
Checklist
Check Explanation/comment Checked
Before you install the pump,
become familiar with the location
of the steam lines.
There are three connections above the support plate:
• Two steam connections
• One condensate return connection.
The steam connections are connected to the tops of the
column and discharge jackets.
Determine which method to use
in order to connect the steam
lines.
There are two methods you can use in order to connect
the steam lines:
• You can use both steam lines as input for steam
(preferred method).
• You can use one steam line as input for steam, while
the other steam line is used as a feed through to
additional pumps.
Only use this method if absolutely necessary, because
it is difficult to control the steam at subsequent
pumps.
Before you install the pump,
check the fittings for leaks. Use
plant air or high pressure water.
The jackets are hydrotested by the factory at 100 psi
before shipment. However, the tube fittings can become
loose during transit.
If you use air to check for leaks, use a soap solution at
each joint in order to check for air bubbles.
Provide source of steam at 35 psi
and 300°F (149°C).
Less than ideal conditions require higher pressure steam
in order to keep the correct temperature.
After the pump is brought to
temperature for the first time,
shut down the unit temporarily
and readjust the impeller
clearance.
Refer to Impeller clearance setting in the Operations
chapter.
Final piping checklist
Check Explanation/comment Checked
Check that the shaft rotates smoothly. Rotate the shaft by hand. Make sure there is no
rubbing that can lead to excess heat generation or
sparks.
Re-check the alignment to make sure that
pipe strain has not caused any
misalignment.
If pipe strain exists, then correct the piping.
Installation
28 Model API 3171 Installation, Operation, and Maintenance Manual