Ditch Witch JT920, Manual

Page: 60 / 169

60
JT920/JT920L - PREPARATION
PLAN BORE PATH
60
JT920/JT920L - PREPARATION
PLAN BORE PATH
Recommended Bend Limit
Though Ditch Witch pipes are designed to bend, bending beyond
recommended limits will cause damage that might not be seen.
This damage adds up and can lead to sudden pipe failure.
JT920 drill pipes have a tested bend radius of 85’ (25.9 m),
meaning a 90 degree bend, whether during entry and exit or
when turning, requires 85’ (25.9 m) of forward distance and
approximately 134’ (40.8 m) of pipe. Use
APPENDIX , sections A
and B, to keep bends within safe limits and make sure pitch
changes no more than 7% per pipe.
JT920L drill pipes have a tested bend radius of 100’ (30 m),
meaning a 90 degree bend, whether during entry and exit or
when turning, requires 100’ (30 m) of forward distance and
approximately 160’ (48 m) of pipe. Use
APPENDIX , sections A
and B, to keep bends within safe limits and make sure pitch
changes no more than 9% per pipe.
NOTICE: Bending pipe more sharply than recommended will
damage pipe and cause failure over time.
om2258a.eps
Recommended Bend Limit
Though Ditch Witch pipes are designed to bend, bending beyond
recommended limits will cause damage that might not be seen.
This damage adds up and can lead to sudden pipe failure.
JT920 drill pipes have a tested bend radius of 85’ (25.9 m),
meaning a 90 degree bend, whether during entry and exit or
when turning, requires 85’ (25.9 m) of forward distance and
approximately 134’ (40.8 m) of pipe. Use
APPENDIX , sections A
and B, to keep bends within safe limits and make sure pitch
changes no more than 7% per pipe.
JT920L drill pipes have a tested bend radius of 100’ (30 m),
meaning a 90 degree bend, whether during entry and exit or
when turning, requires 100’ (30 m) of forward distance and
approximately 160’ (48 m) of pipe. Use
APPENDIX , sections A
and B, to keep bends within safe limits and make sure pitch
changes no more than 9% per pipe.
NOTICE: Bending pipe more sharply than recommended will
damage pipe and cause failure over time.
om2258a.eps