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Line Mole Backout Preventers
Safe Line Mole Operations Require:
• Safety Dump Valve - Located as near the pipe
entrance as possible, operated by the person
inserting the mole.
* Rigid Pipe Stinger - Sufficient length of rigid pipe
to prevent mole from turning around inside pipe.
• Mole Backout Preventer - Prevents mole from
backing out due to plugged jet, “hydraulicing”,
hose or mole failure.
Because....
• Jets can plug at any time, causing unbalanced forces,
and unpredictable reactions.
• Long hoses store a great deal of energy, which can be
released in an unpredictable manner if equipment
fails.
• Personal protective equipment designed to protect against
splash-back may not offer adequate protection from
impact of a line mole and hose flying out-of-control.
• Adequate Personal
Protective Equipment
• Follow “Recommended
Practices” of Water Jet
Technology Association
for safe operation.
Available from
StoneAge.
BJ 310
Backout
Preventer
Fits Pipes 4 - 8 in. Ø
• Backout Preventers do not
prevent hose from backing out
BJ 320
Backout
Preventer
• Attach securely to pipe
• Accept 1/4 to 1 inch OD hose
BJ 340
No Flange Kit
• Adapts BJ 320 for secure
fit to pipes without flanges
• Fits pipes of 6 - 36 in. Ø
Kits convert BJ 320 to fit
bigger diameters, or
flangeless pipe
Fits flange bolt circle 5 - 17 in. Ø
BJ 325
Extension Kit
• Expands to fit flange bolt
circle 15 - 36 in. (38 - 90 cm)
diameter
Durango, Colorado Phone 970-259-2869
www.stoneagetools.com FAX 970-259-2868
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