KSB Calio 65-60 Frequency Converter Circulation Pump
Cut energy costs with smart, variable-speed circulation.
KSB Calio 65-60 Circulation Pump is engineered to boost energy efficiency in modern heating and cooling systems, delivering up to 50% energy savings through variable speed control. In addition, its frequency converter automatically adjusts speed to system demand, while variable differential pressure control minimizes pressure fluctuations in valves and radiators. Furthermore, with 350 W of power it is an ideal choice for medium-sized installations.
This pump delivers a maximum flow rate of 23 m³/h and a maximum head of 6 mH2O. The cast iron body features cathodic coating for corrosion protection, while the stainless steel impeller (AISI 304) and motor shaft (AISI 431) enhance durability. Moreover, a carbon/ceramic mechanical seal allows reliable operation with liquid temperatures from -10°C to +110°C. The pump operates at 230 V monophase / 50 Hz with IE2 motor efficiency, insulation class F, IP 44 protection, and S1 continuous duty.
KSB Calio 65-60 Circulation Pump — Technical Specifications
This pump is used across a wide range of applications, from heating systems to industrial circulation lines. In particular, it provides high efficiency in radiators, combi boilers, and underfloor heating systems, and is also suitable for air conditioning cooling groups (chillers, fan coils). Moreover, it operates safely in solar and geothermal heating circuits, and is compatible with water and water/glycol mixtures.
Key Advantages
- Up to 50% energy savings thanks to frequency converter
- Quiet operation and compact design (340 mm) for easy installation in tight spaces
- High quality assurance with tests compliant with VDI 2035 standards
Applications
- Heating systems (radiators, combi boilers, underfloor heating)
- Air conditioning and cooling groups (chillers, fan coils)
- Industrial circulation lines and solar energy systems
In conclusion, KSB Calio 65-60 Circulation Pump is the right choice for professionals aiming to reduce energy costs and improve system efficiency. ORFA Industrial has been your reliable partner in industrial flow technologies since 1985. We supply worldwide and provide technical support and procurement through our expert team.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies



Reviews
There are no reviews yet.