Taylor-Wharton High Capacity GST Storage Tanks User Manual
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VALVE should be opened just before closing VAPOR & LIQUILD PHASE ISOLATION
VALVES to prevent damage to the LIQUID LEVEL GAUGE. Carefully loosen the
adapters on both sides of the LIQUID LEVEL GAUGE to relieve pressure. Disconnect the
instrument lines and fully open VAPOR & LIQUILD PHASE ISOLATION VALVES.
Visually check the resultant gas streams for signs of moisture. Vent lines for approximately
two minutes. If no moisture is evident, close the VAPOR & LIQUILD PHASE
ISOLATION VALVES. If moisture is evident, continue venting until the stream is free of
moisture.
Tanks without factory supplied LIQUID LEVEL GAUGE:
- Prior to installing components
to VAPOR & LIQUILD PHASE ISOLATION VALVES visually check the resultant gas
streams for signs of moisture by fully opening VAPOR & LIQUILD PHASE ISOLATION
VALVES. Vent lines for approximately two minutes. If no moisture is evident, close
VAPOR & LIQUILD PHASE ISOLATION VALVES. If moisture is evident, continue
venting until the stream is free of moisture.
CAUTION: Do not look directly into the tank lines. Bodily injury could occur.
NOTE:
Carefully open gauge valves since some residual liquid may have remained
in tank or the instrument lines.
9.
Open PRODUCT SUPPLY VALVE and AUXILIARY LIQUID VALVE if provided to
check for moisture as in Step 8.
10.
Open TANK BLOWDOWN VALVE and TRYCOCK VALVE and check for moisture as
in step 8.
11.
Repeat purge procedures 2 through 11 until acceptable product purity is achieved.
12.
Reconnect the LIQUID LEVEL GAUGE (installed by user), open VAPOR & LIQUILD
PHASE ISOLATION VALVES and close EQUALIZATION VALVE (installed by user).
13.
After completion of tank purge, make sure that all valves are closed except the VAPOR &
LIQUILD PHASE ISOLATION VALVES.
FILLING A WARM TANK
Perform the following steps to fill a tank for the first time or when returning a tank to service after it
has been emptied and allowed to warm.
1.
Close all valves except VAPOR & LIQUILD PHASE ISOLATION VALVES.
2.
Check the name of the contents on the supply source against the product name on the tank
to be certain that the proper product is being transferred into the tank.
3.
Connect supply source fill hose to tank FILL CONNECTION. Make certain connection is
leak tight. Purge the fill hose.