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For GripSafe
®
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FRM-22.1-Rev.H-SMDBB
5.
Preparing
the GripSafe ST DBB Plug for Installation
5.1 The GripSafe ST DBB plug should be in the Retracted position (Not Ready to Install) from
the factory, see Figure 4.
5.2 Tighten the
Compression Hex Nut(21)
so that the
DBB Spring Plate(3)
is flush the
Wedge Cone(10)
, see Figure 5.
•
Do not over tighten or torque the
Compression Hex Nut(21)
to the point that the
Seals(14)
start to swell or extrude over the OD of the plug.
•
In the Compressed state, shown in Figure 5, the GripSafe Plug will immediately
grip on the pipe upon insertion.
Figure 4: Not Ready to Install State (Retracted)
Figure 5: Ready to Install State (Compressed)
CHECK:
Ensure plug is clean of debris, fouling, and contaminants before each use.
Each
Wedge Gripper(16)
should slide freely up and down in its slot with a full range of
motion and without resistance.
Wedge Gripper(16)
with impeded movement due to
debris, dirt, contaminants or other fouling will cause the plug to not grip on the pipe’s
inner diameter, which can cause the plug to eject under pressure, leading to personnel
injury or death, material loss, and damage to equipment.
