Nipple wrench (plumbing)
Encyclopedia
In plumbing
, a nipple wrench is often known as an inside pipe wrench
.
An eccentric toothed gear is mounted on a hexagonal shaft. The wrench is introduced inside the pipe (especially a close nipple, which has threading its entire length, and therefore no surface for an outside wrench). As the wrench
is turned, the eccentric gear is forced to grip the inside of the pipe. As with a regular pipe wrench, the mechanism is such that the grip on the pipe increases with the torque applied on the wrench.
It is a relatively obscure but often useful tool.
Plumbing
Plumbing is the system of pipes and drains installed in a building for the distribution of potable drinking water and the removal of waterborne wastes, and the skilled trade of working with pipes, tubing and plumbing fixtures in such systems. A plumber is someone who installs or repairs piping...
, a nipple wrench is often known as an inside pipe wrench
Pipe wrench
The pipe wrench is an adjustable wrench used for turning soft iron pipes and fittings with a rounded surface. The design of the adjustable jaw allows it to rock in the frame, such that any forward pressure on the handle tends to pull the jaws tighter together. Teeth angled in the direction of turn...
.
An eccentric toothed gear is mounted on a hexagonal shaft. The wrench is introduced inside the pipe (especially a close nipple, which has threading its entire length, and therefore no surface for an outside wrench). As the wrench
Wrench
A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects—usually rotary fasteners, such as nuts and bolts—or keep them from turning....
is turned, the eccentric gear is forced to grip the inside of the pipe. As with a regular pipe wrench, the mechanism is such that the grip on the pipe increases with the torque applied on the wrench.
It is a relatively obscure but often useful tool.