Calpeda NR4 65A/A In-line Centrifugal Pump – High-Efficiency Water Circulation Pump

✅ Calpeda NR4 65A/A is a single-stage in-line centrifugal pump designed for water circulation in heating, HVAC, cooling, and industrial water systems. Its in-line suction and discharge configuration minimizes installation space while simplifying piping layout and maintenance.

✅ The pump features a close-coupled monoblock design, ensuring smooth operation, reduced vibration, high efficiency, and reliable long-term performance with minimal maintenance.

✅ The pump casing and impeller are manufactured from cast iron, while the shaft is made of stainless steel and fitted with a Carbon/Ceramic/NBR mechanical seal, providing excellent durability and leak-free operation.

✅ With stable flow performance and moderate head, the Calpeda NR4 65A/A is ideal for hot water circulation, chilled water systems, HVAC installations, cooling circuits, and various industrial water applications.

✅ Standard flanged connections allow easy installation into industrial piping systems, making the pump suitable for factories, commercial buildings, hospitals, hotels, and other facilities requiring continuous circulation.

✅ Manufactured to European quality standards, the Calpeda NR4 65A/A delivers reliable performance, energy efficiency, and long service life for demanding water circulation applications.

Technical Specifications

✅ Product Name: In-line Centrifugal Pump

✅ Model: NR4 65A/A

✅ Brand: Calpeda

✅ Manufacturer: Calpeda

✅ Origin: Italy

✅ Pump Type: Single-Stage In-line Centrifugal Pump

✅ Motor Power: 0.33 kW (0.45 HP)

✅ Power Supply: 230/400V, 3-Phase, 50Hz

✅ Speed: 1450 rpm

✅ Maximum Flow Rate: 20 m³/h

✅ Maximum Head: 5.6 m

✅ Connection Size: DN65

✅ Pump Casing Material: Cast Iron

✅ Impeller Material: Cast Iron

✅ Shaft Material: Stainless Steel

✅ Mechanical Seal: Carbon / Ceramic / NBR

✅ Liquid Temperature: -10°C to +90°C

✅ Maximum Working Pressure: 10 bar

Applications

✅ HVAC Systems

✅ Central Air Conditioning Systems

✅ Heating Systems

✅ Cooling Systems

✅ Water Circulation Systems

✅ Water Supply Systems

✅ Industrial Plants

✅ Office Buildings

✅ Hotels

✅ Hospitals

✅ Commercial Buildings

✅ Mechanical & Electrical (M&E) Systems

Hotline: 0084 787900099