Which factor is specifically associated with friction loss in piping for dosing systems?

Which factor is specifically associated with friction loss in piping for dosing systems?

• A. Only the height to be pumped
• B. Only the pipe material
• C. The resistance to movement through the pipe caused by type, diameter and distance pumped
• D. Ambient temperature

Answer: (C)

Friction loss comes from the resistance inside the pipe as the dosing fluid flows. This resistance is determined by how rough the pipe’s interior is (pipe material), the pipe’s diameter, and how far the fluid has to travel (length of the run). Rougher walls create more resistance, a smaller diameter speeds the flow for a given rate and increases friction, and a longer piping run adds up more friction losses over distance. In dosing systems, this friction reduces the pressure head available to deliver the dose, so those factors directly determine how much friction loss you’ll have and must be considered when sizing piping and pumps. The other options miss the mark because height to be pumped relates to static head rather than friction, ambient temperature isn’t the primary factor in friction loss for typical dosing conditions, and pipe material by itself doesn’t capture the combined effect of roughness, diameter, and length.

Friction loss comes from the resistance inside the pipe as the dosing fluid flows. This resistance is determined by how rough the pipe’s interior is (pipe material), the pipe’s diameter, and how far the fluid has to travel (length of the run). Rougher walls create more resistance, a smaller diameter speeds the flow for a given rate and increases friction, and a longer piping run adds up more friction losses over distance. In dosing systems, this friction reduces the pressure head available to deliver the dose, so those factors directly determine how much friction loss you’ll have and must be considered when sizing piping and pumps. The other options miss the mark because height to be pumped relates to static head rather than friction, ambient temperature isn’t the primary factor in friction loss for typical dosing conditions, and pipe material by itself doesn’t capture the combined effect of roughness, diameter, and length.