FAX
Recommended Storage Procedure for Packaged Production
Equipment
Recommended Storage Procedure for Packaged Production
Equipment
Storage Less Than 6 Months
When storing Production Equipment Packages for a short period a
few precautions need to be taken to ensure that the unit remains
operable upon startup. These points are listed below. Note: When
storing for longer than 6 months there is a section contained
farther below that states the extra requirements above and beyond
many of these procedures for Short Term Storage.
Instruments
All openings in instrument and electrical equipment shall be
plugged or capped. This includes all unused cable entries, process
line connections, and pneumatic tubing connections.
All instrument panels, cabinets, or boxes containing electronic
components, shall be shrink-wrapped.
All instruments exposed to the elements during storage shall be
shrink-wrapped.
Any enclosure that contains electrical equipment or connections
shall have a vapor action, corrosion inhibitor suitable for
enclosure size (Northern Instruments Corp. STOR-SAFE or equal).
Valves
Flanged ends of valves shall be protected with wood or plastic
flange covers.
Threaded end valves shall be plugged off with steel or plastic
plugs.
Lubricate all valves in accordance with manufactures approved
procedures.Piping
Flange faces shall be coated with a suitable rust inhibitor and
protected with wood or plastic flange covers.
Male and female threaded connections shall be coated with rust
inhibitor and plugged off with steel or plastic plugs. Cast iron
and malleable iron fittings shall not be used.
All external machined surfaces shall be coated with a suitable
rust preventative that can be completely removed by hand
cleaning.
Pumps
Pumps shall be filled with oil.
Pump and motor shafts will be coated with a corrosion
inhibitor.
Inspection and Maintenance Requirements
All items shall be externally inspected bi-weekly for visible
signs of damage or deterioration and repaired as necessary.
Temporary seals and protective coatings shall be inspected
bi-weekly and replaced or repaired as necessary.
Pump and motor shafts should be rotated by hand 2-1/4 turns
weekly during storage.
Valves shall be left fully open or fully closed.
Removal of Preservation
Should it be necessary to remove any preservative for
inspection, preservatives shall be reapplied upon completion.
Provision shall be made for the proper disposal of oils,
greases, solvents, protective coatings, etc., to prevent pollution
and other hazards.
Although this is not an absolute requirement, it is best to
store unit in an area that is not directly exposed to the weather.
Note that equipment should not be covered or wrapped in plastic
unless a desiccant is included or moisture will become trapped
inside worsening conditions instead of improving them.
Storage More Than 6 Months
When storing a Production Equipment Package for over 6 months
the following precautions should be taken to ensure that the unit
remains operable upon startup. The storage precautions listed below
are in addition to the short-term storage recommendations listed
above. A drawing should be prepared to show the installation of the
temporary items below and marked so that they will be removed
before shipping/Start-Up.
For Pressure Rated Equipment - Blind flanges w/ taps and coated
with zinc should be installed at open piping flanges. Interconnect
all piping and vessels as necessary with stainless steel tubing. A
nitrogen source with pressure reducing regulator and gauge should
be tied into the process piping at the lowest accessible point. Use
a pressure-reducing regulator with a minimum design inlet pressure
of 3000 psig, and a maximum outlet pressure of 0-65 psig, (Victor
model SR-450-D or equal). Install a pressure gage with a pressure
range of 0-30 psig downstream of the regulator. A vent valve should
be installed at the highest point. Open the vent valve, then open
nitrogen source valve to allow the nitrogen to purge all air. Open
the nitrogen source to the system for several minutes until cool
nitrogen can be felt escaping from the outlet vent. Close the vent
valve and bring the pressure up to about 5 psig. The nitrogen
pressure should be maintained at 5 psig at all times throughout the
storage period.
Storage More Than 6 Months (contd)
For Atmospheric Rated Equipment (heaters, reboilers, sump tanks,
etc.) Cover all openings with liquid-tight covering, and make
provision to interconnect all tanks and piping. Fill the tank and
piping with a 50/50 water glycol solution with corrosion
inhibitors. A small pump, such as a Wilden T-2, should be connected
with the suction off the drain and the discharge plumbed back into
a high point on the system being protected. This can be tied into
the gauge glass connection or any other point that is high and
convenient tank or piping. The glycol should be circulated for a
minimum of six hours each month to maintain a good mixture and
prevent the glycol and water from separating. Please note some
brands of propylene glycol and water mixture will retain a better
in solution mixture that will not require circulation for periods
longer than 6-12 months.
Shipping Preparation (As required)
All temporary Gauges, Valves, Blinds Etc shall be removed prior
to Shipping
Units shall be Cleaned Up and Washed down and the Paint Touched
up.( A Full Top Coat can be applied as an option if the millage is
acceptable)
Note: Failure to follow the storage procedure may void any
warranty claims relating to failures that may be attributed to
corrosion or other storage related problems.
Documents Required
Signed Acceptance of the units at the point of completion,
before storage process begins.
Customer must provide a Signed Ship in Place Letter for the
original Contract That will allow invoicing to occur. This document
must meet Hanover Legal Standards for Acceptance.
Purchase Order for Acceptance of The Hanover Companys proposal
to Store and Preserve subject Units.
Signed Acceptance of the Unit after Storage but Prior to
Shipping.
.
5/23/2006
Page 1 of 35/23/2006
Page 2 of 3
_1209881448.bin
_1209881495.bin
