28
Troubleshooting Product Manual - Perma-Cyl
®
w/ FlexFill™ Piping Option
Trouble Probable Cause Remedy
Hissing sounds or
evidence of gas
leaking near tank,
gas lines, or gas-
use equipment.
(continued)
Large leaks, leaks from elsewhere in
the system, sustained leaks, or frequent
leaks (not normal).
1. Evacuate all personnel from affected areas.
Ventilate room / area.
2. If possible, locate the leak and repair it or call gas
service or gas-use equipment service technician.
High gas usage. Unrecognized increase in actual gas use. 1. None for Perma-Cyl tank or gas supplier
2. Gas user to determine reason for increase in gas
use.
Leak in gas supply line or network or in
gas-use equipment or tank plumbing, e.g.
relief valve.
1. Evacuate and ventilate room, if necessary.
2. If possible, locate and repair leak or call gas-use
equipment service agent.
3. User to check tank for frost / leaks before
operations.
Tank pressure routinely too high and
venting.
1. See troubleshooting section on routinely high tank
pressure.
High ash or vaporization losses in liquid
use application due to high pressure /
temperature liquid in tank.
1. Vent tank to approximately 25 psi. Follow safety
procedures.
2. In future only rell the Perma-Cyl tank with low-
pressure cryogenic product.
Error in gas delivery or supplier invoice. 1. Check gas usage history / pattern against supplier
invoices.
2. Call gas supplier, if necessary.
Perma-Cyl tank
cannot be lled.
Perma-Cyl tank is full. 1. None
Fill line is blocked or inoperative. 1. Check for obstructions in the ll line. Clear if
necessary.
2. Gently tap on check valve to assure proper
operation.
3. Ensure top & bottom ll valves are open.
4. Call gas service technician.
Orca
™
MicroBulk Delivery System is not
functioning properly.
1. Refer to Orca system Troubleshooting.
Transfer hose is obstructed, e.g. hose is
bent excessively, crimped or plugged.
1. Clean obstruction, inspect hose for damage, and, if
everything is satisfactory, continue the lling.
Perma-Cyl tank does
not initiate automatic
ll shut off properly.
Fill line piping created too much pressure
drop.
1. Ensure ll line is piped with 3/4” nominal copper (or
equivalent) with minimal 90° bends.
2. Re-route ll piping.
Improper ll procedure. 1. Review Orca system/Perma-Cyl tank lling
procedure.
2. Ensure that all vent and use valves of the tank are
closed.
Only works with Chart Orca MicroBulk
delivery vehicle. For other type trucks use
full trycock.
N/A
Liquid withdrawal
contains high level
of gas.
Saturated liquid pressure in Perma-Cyl
tank is too high. (Temperature or energy
level of contents is too high due to
excess pressure.)
1. Ensure PB shut-off valve is closed.
2. Open vent valve to allow excess pressure to vent
until desired pressure is obtained. Follow “Safety”
guidelines and procedures for venting.
3. Install secondary lower pressure relief valve to
reduce saturated pressure of liquid in the future.
4. In future only rell the Perma-Cyl tank with low-
pressure cryogenic product.
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