Equalizer International SWi12/14TM, Инструкция оператора

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OPERATOR INSTRUCTION MANUAL
IM_SWi_REV07_A4_English
SWi12/14TM; SWi20/25TE; SWi20/25TI
FLANGE SPREADING WEDGES
11
Using SWi20/25TE Sub-Sea
The SWi20/25TE is actuated by means of single-acting
spring-return hydraulic cylinder and can be used sub-sea
providing the following actions are taken:
‡ The gauge and manifold are removed from the
Equalizer HP350S/D hydraulic hand-pump and the
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‡ The tool is connected to the Equalizer HP350S/D
pump whilst still top-side.
‡ The pump release valve is fully opened and remains
open until the tool has descended to the working
depth. This will allow the pressure to equalise.
‡ The tool is actuated via the hand pump by a diver.
‡ Upon completion of works the release valve is left in
the fully-open position until the tool has ascended to
the surface.
‡ The tool and pump are stripped-down, cleaned and
lubricated immediately to minimise corrosion.
Please note that a sub-sea SWi20/25TE tool cannot be
operated from top-side by use of a down-line. The return
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force to close the tool if used with a down-line from a
top-side pump, therefore the standard hydraulic tools will
not function correctly and may jam in place if used in this
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4.6
OPERATING CONDITIONS
GREASE LIMITATIONS:
Minimum Temperature: -5ºC (23ºF)
Maximum Temperature: 40ºC (104ºF)
MECHANICAL TOOLS:
Minimum Jaw Contact Temperature: -30ºC (-22ºF)
Maximum Jaw Contact Temperature: 150ºC (302ºF)
HYDRAULIC TOOLS:
Minimum Jaw Contact Temperature: -30ºC (-22ºF)
Maximum Jaw Contact Temperature: 70ºC (158ºF)
4.7
SUB-SEA USAGE
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with a sealed-bladder type reservoir system that allows
for sub-sea operation.
Using SWi12/14TM Sub-Sea
The SWi20/25TM is actuated mechanically and can be
used sub-sea providing the following actions are taken:
‡ The tool is actuated via the torque-wrench by a diver.
‡ The tool and pump are stripped-down, cleaned and
lubricated immediately to minimise corrosion.
Using SWi20/25TI Sub-Sea
The SWi20/25TI is actuated by means of single-acting
spring-return hydraulic cylinder and can be used sub-sea
providing the following actions are taken:
‡ The pump release valve is fully opened and remains
open until the tool has descended to the working
depth. This will allow the pressure to equalise.
‡ The tool is actuated via the hand pump by a diver.
‡ Upon completion of works the release valve is left in
the fully-open position until the tool has ascended to
the surface.
‡ The tool and pump are stripped-down, cleaned and
lubricated immediately to minimise corrosion.