KeyCHC - CHC Series

Database Version: 260717 · KeyCHC V3.4.7 · KeySuite V4.03.00

Required Duty

Enhanced

Flow

Head

Multiple Duty Points

D1 is the Required Duty above and controls pump selection. Add D2–D6 as reference points; they do not change the recommended pump.

Extra duty points use the same Flow and Head units selected for D1.

Operating Speed

0 Hz = 0 RPM · 50 Hz = 2900 RPM (Max)

Before selection, this speed is used to size the pump at D1. After a pump is selected, changing speed updates that selected model's curves live. Press Select Pump again only when you want to re-size/re-select at the new speed.

Calculated Speed2900 RPM

Motor Efficiency

Motor Phase

Motor Voltage

380–415 V

IE3 · 3 Phase · 380–415 V

Display Settings

Global CHC display setting used by Selection, Quick Selection and Product. Parallel curves are optional references; D1 remains the single-pump selection duty.

Selector Screen

PDF Page 1

Follow Display Setting Hide Duty Point

System Curve

Static head + calculated friction resistance through Required Duty. Display stops at whichever comes first: selected pump shut-off head or the maximum flow of the highest enabled 2P–6P reference curve, or the normal single-pump curve when no parallel reference is enabled.

Static Head

Enter a duty point to calculate the system curve.

Orifice

Uses the selected CHC pump discharge DN automatically. After-orifice head = Pump Head − Orifice Friction Loss.

Orifice Size (mm)K-Factor

Select a CHC pump to derive the discharge size.

Most Suitable ranking

Hydraulic validity → BEP Group 1 (-5%/+3%), Group 2 (-10%/+8%), Group 3 (-18%/+13%) → highest duty efficiency.

Enter a duty point and select a CHC pump.