Reductions in flow due to turbulence as water passes through hoses, pipes, valves, and fittings. This includes both suction and discharge friction losses.

The amount of pressure lost as water flows through the water meter, pipe, fittings and valves of an irrigation system. As the velocity of water flowing through the system increases, the friction loss will also increase. These losses can be used to calculate the approximate dynamic (working) pressure at any given point of a system.

The part of the total pressure loss experienced by water while it travels through pipe, hose, fittings, adapters, and appliances on its way to the nozzle. The basis for fire hose friction loss calculations are the size of the hose, the amount of water flowing (gpm), the length of the hose lay, the age of hose, and the condition of the lining. Friction loss calculations are taken into account when determining what pressure the pump operator needs to deliver to different lines in order to give the fire personnel the appropriate amount of water.

The amount of head (pressure) required to move the water through the hoses and fittings. This must be allowed for when selecting a suitable pump for the pond. See our chart

the loss of pressure caused by water flowing in a pipe system. Pressure loss due to turbulence produced by water flow against the inside wall of the pipe. Friction loss is a function of the pipe inside diameter, wall surface roughness, and the velocity of the water flow.

Pressure lost in a pipe due to turbulence created by water traveling through pipe.

Loss of pressure, in terms of feet of head per unit of pipe length, from internal resistance to flow in the product itself (viscosity) and from resistance offered by pipe walls, pipe fittings, and reductions in pipe diameter. FSSP fuel-system supply points ft foot (feet)

The loss of pressure through a pipe/system etc. caused by the friction (drag) of the system components. As flow increases in any given pipe so will friction loss, therefore reducing the available pressure at the outlet.

A calculation of pressure consumed via water moving through a pipe encountering resistance via velocity, length, volume, size, and pressure.

a reduction in the pressure of a fluid caused by its motion against an enclosed surface (such as a pipe). As the fluid moves through the pipe, friction between the fluid and the pipe wall and within the fluid itself creates a pressure loss. The faster the fluid moves, the greater are the losses.

The pressure drop along a pipe as a direct result of the movement of the fluid within it.

The loss of pressure (force) as water flows through the piping system.

refers to reductions in flow due to turbulence as water passes through hoses, pipes, fittings and elbows.

A loss of pressure caused by friction as water moves through the irrigation system.

Resistance to air flow through any duct or fitting, given in terms of static pressure.

Reduction of flow in a firehose caused by Friction between the water and the lining of the hose. Depends primarily upon diameter, type and length of hose, and amount of water (GPM) flowing through.

The loss of pressure resulting from water rubbing against and being agitated by the interior walls of fire hose, pipe, or fittings. Friction loss is measured in psi (pounds per square inch) per hundred feet.

Loss in efficiency due to friction.

Friction loss refers to that portion of pressure lost by fluids while moving through a pipe, hose, or other limited space.