Description

Application :
The QF pumps are suitable for the following application :

• Raw water supply.
• Irrigation systems.
• Groundwater lowering.
• Pressure boosting.
• Industrial applications.

TYPE KEY :
Example:

Type range ———————————————————————- QF
Nominal flow rate x 10 Ipm ———————————————– 210
Number of impellers ——————————————————– -5
First impeller with reduced diameter (A,B or C) ——————- -A
Second impeller with reduced diameter (A,B or C) ————– B
SS-304, SS-316 —————————————————————– N

PUMPED LIQUIDS:
Clean, thin, non-aggressive liquids without solid particles or fibers

OPERATING CONDITIONS:

• Flow rate, Q: 1.2 m3/h – 280 m3/h
• Head, H: Max 670m

Maximum Liquid Temperature

The speed of the motors is approximately :

• 4″ motors : n=2870 min-1
• 6motors : n=2870 min-1
• 8″ to 12″ motors : n=2870 min-1
• The measurements were made with airless water at a temperature 2 of 20°c.The curves apply to a kinematic viscosity of 1mm /s. When pumping liquids with a density higher than that of water, motors with correspondingly higher outputs must be used.
• The bold curves indicate the recommended performance range.
• The performance curves are inclusive of possible losses such as non-return valve loss.

QF2, QF5, QF6, QF12, QF20, QF25 CURVE :

• Q/H: The curves are inclusive of valve and inlet losses at the actual speed
• Power Curve: Bpkw/Stage shows pump power input per stage
• Efficiency Curve: Efficiency shows pump stage efficiency

QF10, QF15, QF30, QF50, QF75, QF100, QF125, 0F160, QF210, QF270, QF360 CURVE

• Q/H: The curves are inclusive of valve and inlet losses at the actual speed
  Operation without non-return valve will increase the actual head at nominal performance by 0.5 to 1.0 m
• NPSHR The curve is inclusive of suction case and shows required inlet pressure
• Power Curve: It shows pump power input at the actual speed for each individual pump size
• Efficiency Curve: Efficiency shows pump stage efficiency