Black pipe is an amateur term for common steel or iron pipe.
pipe schedule is an American definition to define pipe thickness and how much pressure can the pipe stand, schedules are 10,20,40,80.., pipe schedule is nearly close to the eurobian definition for pipe class.
A portable pipe instrument
If you are asking what is the spring line of a pipe, it is the point of greatest horizontal dimension when looking at an end cross section of a pipe.
potassic volcanic rock best known for sometimes containing diamonds
A freedman was any freed black individual
pipe schedule is an American definition to define pipe thickness and how much pressure can the pipe stand, schedules are 10,20,40,80.., pipe schedule is nearly close to the eurobian definition for pipe class.
GI Pipe is "Galvanized Iron" Pipe. These days the pipe will likely be made from steel rather than iron.
A pipe that carries magma inside a volcano.
a black pipe can not be used in plumbing.Of course black pipe has many used in "plumbing" gas fitting and steam fittingPneumatic lines are specified as black , Fire suppression systems black pipe, gas piping , oil supply , steam and hydronics black pipe
Bi pipe is a black iron pipe.
Black of course
With a pipe threader.
A portable pipe instrument
carbon .
Black iron pipe is used for gas installations but ONLY if the piping is indoors. Outdoor gas piping is usually done in galvanized pipe. Steam is also piped with black pipe, fire sprinkler and standpipe systems also use black pipe.
Black pipe is used mainly for gas lines. Like it's name it is black in color and made from a heavy gauge steel. Galvanized pipe is pipe that has been coated with a material that reduces the effects of rust. It is silver in color.
Definition: Wet vent means a waste pipe that also serves as a vent pipe