The Pedrollo CPm 158 is a 1.0 HP (0.75 kW) single-impeller centrifugal surface pump. It is engineered for moving high volumes of clean water at moderate pressures, making it suitable for residential pressure boosting, overhead tank filling, and agricultural/garden irrigation.
Performance Specifications
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Motor Power Output: $0.75\text{ kW}$ / $1.0\text{ HP}$
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Electrical Supply: Single-phase $220\text{V}$–$240\text{V}$ AC, $50\text{Hz}$
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Full Load Current: $6.0\text{ A}$
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Maximum Flow Rate ($Q$): $160\text{ L/min}$ ($9.6\text{ m}^3\text{/h}$)
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Maximum Head ($H$): $36\text{ meters}$
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Optimal Working Point: $90\text{ L/min}$ @ $30\text{ meters}$
Head vs. Flow Curve Breakdowns
| Flow Rate (Q) |
Total Head (H) |
| $20\text{ L/min}$ ($1.2\text{ m}^3\text{/h}$) |
$34.0\text{ m}$ |
| $60\text{ L/min}$ ($3.6\text{ m}^3\text{/h}$) |
$32.0\text{ m}$ |
| $100\text{ L/min}$ ($6.0\text{ m}^3\text{/h}$) |
$28.5\text{ m}$ |
| $140\text{ L/min}$ ($8.4\text{ m}^3\text{/h}$) |
$22.0\text{ m}$ |
| $160\text{ L/min}$ ($9.6\text{ m}^3\text{/h}$) |
$17.5\text{ m}$ |
Technical & Operating Limits
| Feature |
Rating |
| Suction Lift |
Up to $7\text{ meters}$ (manometric lift with foot valve) |
| Max Working Pressure |
$6\text{ bar}$ |
| Liquid Temperature Range |
$-10^\circ\text{C}$ to $+90^\circ\text{C}$ |
| Ambient Temperature |
Up to $+40^\circ\text{C}$ |
| Inlet / Outlet Ports |
1″ Female BSP × 1″ Female BSP |
| Duty Rating |
Continuous Duty (S1) |
| Inclosure Rating |
IPX4 / Class F Insulation |
Build Materials
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Pump Body: Cast iron with cataphoresis anti-corrosion treatment.
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Impeller: Stainless steel (AISI 304).
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Motor Shaft: Stainless steel (AISI 431).
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Mechanical Seal: Ceramic / Graphite / NBR.
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Motor: Fitted with built-in thermal overload protector in the winding.
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