In many industrial facilities, pipes are color-coded to signify the type of content or the purpose of the pipe. Red is frequently chosen for fire water lines. This makes these pipelines easier to spot and differentiate, highlighting their significance for emergency response and firefighting. Since color codes might differ and extra marks or labels may also be used to transmit information about the pipes in a facility, it is always advisable to consult the specific local codes and standards.
The pipe's wall thickness is indicated by the schedule number, such as "Schedule 40S," in pipe specifications. Regarding pipes made of stainless steel, the "S" in "Schedule 40S" refers to "Stainless."
The technique of creating helical submerged arc-welded (SAW) pipes frequently involves the usage of steel coils. Large-diameter helical SAW pipes are frequently utilized in pipeline applications, especially for the transportation of natural gas and oil.
A specification for seamless carbon steel pipe intended for high-temperature usage is ASTM A106 Grade B (Grb). As a result, seamless pipes are connected to the material grade ASTM A106 Grb. For the intended use of ASTM A106 Grade B, seamless pipes—which are constructed without any welded seams—offer superior strength and efficiency in high-pressure and high-temperature applications.
A pipe length that is typically between 10 and 20 feet (3 and 6 meters) long is referred to as "double random". It does not state clearly that 4.8 meters must be the minimum length.
The internal diameter, pipe thickness, and external diameter of a pipe are not explicitly indicated by NPS, or nominal pipe size. As an alternative, the NPS is a North American standard that gives pipes a notional reference size. The NPS does not correspond to any particular physical dimension; rather, it is a designation used to standardize pipe sizes.
The ASME B36.19 standard typically provides pipe specifications made of stainless steel. Stainless steel pipe weights and dimensions are covered in detail in ASME B36.19. In order to guarantee consistency and suitability in a range of applications, it offers details on standard sizes, schedules, and dimensions for stainless steel pipes.
