www.USAIndustries.com | (713) 941-3797
©2021, USA Industries, Inc.
FRM-22.1 Rev.G
For most current patent and trademark identifi cations, go to:
https://www.USAIndustries.com/piping-isolation-products/Gripsafe-Patents-Trademarks/
5. Preparing the GripSafe DBB Plug for Installation
5.1 Th e GripSafe DBB plug should be in the relaxed position from the factory. Th ere are
two methods of insertion of the plug.
Method 1: Auto-Locking
, the preferred method, allows the
Wedges
⑪
to immediately conform
and engage to the pipe ID ensuring the plug is immediately incapable of being pushed out of the
pipe in the event of accidental discharge of pressure, i.e. when the
Wedges
⑪
are fully inserted
into the pipe.
Method 2: Free Insertion
is used when the plug is met with an obstruction in the pipe that is not
allowing free entry of the plug into the pipe, i.e. weld droop or other pipe interior discontinuity.
5.2 Method 1: Auto-Locking for immediate gripping upon insertion
•
Expand the
Wedge Grippers
⑪
to the end of the
Wedge Cone
⑫
by advancing the
Compression
Hex Nut
㉑
(see Figure 3). At this point, the
Wedge Grippers
⑪
expanded outside diameter will
be larger than the ID of the pipe.
•
Th e plug is ready to be installed, continue to Section 6.
Figure 3: Immediate Gripping Upon Insertion
Page
8
of
16
