I
NDUSTRIES
, I
NC
.
I
NDUSTRIES
, I
NC
.
Since 1982
GripSafe Patents:
US – 9,927,058, 9,810,364 | CA – 3,004,787 | European Registration – 00626264-0001
Other US and Foreign Patents Pending
www.USAIndustries.com | (713) 941-3797
©2019, USA Industries, Inc.
FRM-23.1 Rev.B
8. GripSafe DBB Plug Removal
8.1 Depressurize the system through the hydro test pump and drain all water from the
Test Vent Port
and
Test Fill Port
.
8.2 Remove hydro test equipment and or gauges from the
Test Ports
①
.
NOTE:
Use caution to ensure the
Test Ports
①
do not become unthreaded or loosened within the
plug during removal of the hydro testing equipment when testing is complete. Failure to do so may
cause internal leaks when the plug is used again. Use appropriately sized wrenches.
8.3 Ensure there is no back pressure on the GripSafe DBB plug.
CAUTION: SLOWLY
open
Vent Port
⑲
to relieve any back pressure. Care must be taken when opening
valves or loosening fittings if any inadvertent backpressure was introduced to the vessel. Failure to do
so may result in hazardous pressure flow and/or fittings becoming violently hazardous projectiles that
may damage personnel and/or equipment. If utilizing a backpressure monitoring tee, fast flowing
gases or liquids through hosing can cause hose whip. Take caution to avoid this, failure to do so may
result in injury to personnel or equipment.
8.4 Loosen the
Compression Hex Nuts
⑱
in an even star pattern as to not place the whole
load on one bolt.
•
If a
Compression Hex Nut
⑱
runs free during loosening, run the nut back to flush with the top of
the
Spring Plate
. The
Seal
⑩
act as a spring containing a large amount of force, too great for one
All Threaded Shaft
⑪
to handle.
•
Once the seal has broken free from the pipe ID, continue loosening the
Compression Hex Nuts
⑱
until it is even with the top of the
All Threaded Shaft
⑪
.
NOTE:
Do not remove the
Compression Hex Nut
⑱
from the
All Threaded Shaft
⑪
. If this happens,
immediately reinstall the components.
CAUTION:
Ensure that all
Compression Hex Nuts
⑱
maintain a load on them during the entire
loosening process. Having all
Compression Hex Nuts
⑱
loose but one, means that a large load is left on
one
All Threaded Shaft
⑪
and the risk of breakage is probable. Once the seals have relaxed enough to
break the seal from the pipe ID the plug is now in a much more relaxed state and
Compression Hex
Nuts
⑱
can be loosened in full.
8.5 Remove the GripSafe DBB plug from the pipe.
•
Clean and store for later use or return to USA Industries, Inc.
•
Store out of direct sunlight in an area not exposed to above 150⁰F UV. Excessive heat will cause
seal degradation over time.
Page
17
of
24
