PUMP CHARACTERISTICS
MODELS AND PERFORMANCE SPECIFICATIONS
Pump Type: CR (or CRT) represents the core pump type.
Motor (Phase):
Blank (no letter) = 1-phase (1~)
T = 3-phase (3~)
Motor Bracket Material:
0 = cast iron
Impeller Material:
0 = Noryl®
1 = brass
PERFORMANCE CHARTS
How to Read a Pump Performance Curve
A pump performance curve shows the relationship between Flow Rate (water volume) and Total Head (pressure). As head increases, flow rate decreases.
Axes and Units Breakdown
Top Axis (Flow Rate): Imperial Gallons per Minute (imp g.p.m.) and US Gallons per Minute (US g.p.m.).
Bottom Axis (Flow Rate): Cubic Meters per Hour (m3/h) and Liters per Minute (l/min).
Left Axis (Total Head): Meters (m). Note: 10 meters of head equals approximately 1 bar of pressure.
Right Axis (Total Head): Feet (ft).
Model Curves (45-50, 65, 80, 90): Individual performance lines for specific pump models in this series.
Head vs. Flow Rate: What is More Important?
Both parameters are equally important and work together:
Total Head: Overcomes elevation height and pipe friction so water reaches your outlets.
Flow Rate: Provides enough water volume to run multiple fixtures at the same time.
💡 Expert Tip for Pump Selection: Find your duty point where required flow rate and total head intersect. Choose a pump model where this point falls near the middle of its curve for maximum efficiency and longer service life.
DIMENSION PENTAX СR PUMPS
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