Physical properties and Theory    

Physical properties and Theory

Pressure loss

Frictionless fluid flow


Pressure loss of the viscous flow

Hydraulic diameter


Straight Piping

Hagen, Poiseuille, Couette

Pressure loss of the straight pipe



Bend 90°

Pressure loss in pipe bends

Resistance coefficient Bend 90°

Miscellaneous: fittings, filter, valves, flow meter, heat exchanger, etc.

Flow coefficient kv, cv

Flow coefficient kv for diverse fittings

Resistance coefficient (Friction Factor)

Resistance coefficient for diverse fittings


Centrifugal pumps DIN EN ISO 2858

pump and ventilator efficieny

Speed adjustment of pumps


Pipe insulation and heat losses

Thermal conductivity pipe material and insulation material

Check for dew formation on the surface

Wind strength and air speed

Wet cooling tower

Humid Air

Wet Bulb Temperature


Span and Beam Theory

Steel Pipe Elastic modulus

Physical properties and Pipe

Physical properties of liquids and gases

Water hardness

Steel Pipe dimensions

Plastic pipe dimensions

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