Liquid suitable for pumping:

These pumps are designed for liquids which are

thin, clean, non-aggressive, non-explosive, not

containing solid particles or fibres.

Special versions made of stainless steel AISI 316

are available for applications involving aggressive

liquids.

General

• Tolerances in accordance with ISO 9906, Annex A.

• The motors used for the measurement are standard motors.

• Test results with clean cold water, without gas content. Measurements have been made with airless water at a temperature of 20°C.

• Head and power values valid for liquids with density = 1.0 kg/dm3 and kinematic viscosity v = max 1 mm2/s (1 cSt).

• When pumping liquids with a density higher than that of water, motors with correspondingly higher outputs must be used.

• The QH curves apply to a rated motor speed of 2900 min-1.

• The performance curves are inclusive of possible losses such as non return valve losses.

• A safety margin of + 2 feet is recommend for the NPSH value.

4” curves

• QH: The curves are inclusive of valve and inlet losses at the actual speed.

• Power curve: The power curve shows pump power input at the actual speed for one stage.

• Efficiency curve: p% shows pump stage efficiency.