Flowserve FPS 14 - Manual (Page 6)

5. Check the vent and pressure valves for damage or blockage.
To check these valves the mechanism must be removed from the cover flange by unscrewing
the two (2) bolts from the sides of the support structure. Lift the entire mechanism until it
becomes free from the flange. Remove the valves and inspect them for damage.
If the valves are in good condition, clean and reinstall them on the cover flange.
If a blockage exists and can be removed without damaging the valves, clean the valves and
reinstall them on the cover flange. If the blockage was found in the pressure valve, inspect and
clean the strainer on the pressure supply line. If there is no strainer installed, install one
upstream of the pressure supply connection.
If any of the valve components are damaged the entire valve assembly must be replaced.
NOTE: when replacing the vent and pressure valves it is important that the valves are properly
matched. The vent has a flat head and the supply valve has a tapered head with a check ball
inside of the body.
Start-Up
1. Slowly open the motive gas (stem, air, or gas) supply valve to the pump. Make sure that there is
adequate pressure to the pump, and that the steam trap (steam) or liquid drainer (air or
pressurized gas) is working properly.
2. Open any isolation valves on the vent, condensate outlet and inlet, in that order. This should
allow liquid to begin flowing into the pump. The pump will discharge when the tank is nearly
full.
NOTE: For low liquid flow rates, the pump may take several minutes before it cycles.
3. If the pump does not seem to be operating properly, recheck the installation and restart the
start-up procedure. If the pump is still not working correctly, follow the Troubleshooting
procedures in this manual.