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Horizontal single-stage centrifugal pumps of the KDN series from SACI Pumps are used in industrial operations, heating and cooling systems, as well as in water supply. They are designed according to the EN 733 standard and feature a separate mounting of the pump and the electric motor, which are connected by a flexible coupling on a common base plate. The range includes eight size series with discharge connections from DN 32 to DN 150.
These values are approximate and may be influenced by other factors. We will be happy to consult with our expert to make sure you make the right choice.
Standardized single-stage pump DIN-EN 733 mounted on a baseplate with a flexible coupling. DN discharge 32 / DN suction 50. 4-pole (1 450 rpm). 6 casing sizes, motor selection. GG25 cast iron, AISI 420 shaft.
Standardized single-stage pump DIN-EN 733 on a baseplate with flexible coupling. DN discharge 32 / DN suction 50. 2-pole (2 900 rpm). 6 casing sizes, choice of motor. GG25 cast iron, AISI 420 shaft.
Standardized DIN-EN 733 single-stage pump on a baseplate with flexible coupling. DN discharge 40 / DN suction 65. 4-pole (1 450 rpm). 4 casing sizes, choice of motor. GG25 cast iron, AISI 420 shaft.
DIN-EN 733 standard single-stage pump mounted on a baseplate with a flexible coupling. DN 100 discharge / DN 125 suction. 4-pole. 3 casing sizes, motor options up to 55 kW. GG25 cast iron, AISI 420 shaft.
Standardized single-stage pump to DIN-EN 733, mounted on a baseplate with a flexible coupling. DN 100 discharge / DN 125 suction. 2-pole. 3 casing sizes, with motor options up to 55 kW. GG25 cast iron, AISI 420 shaft.
Standardized single-stage pump to DIN-EN 733, mounted on a baseplate with a flexible coupling. DN 125 discharge / DN 150 suction. 4-pole (1 450 rpm). Casing 250, motor selection up to 75 kW. GG25 cast iron, AISI 420 shaft.
Standardized single-stage pump to DIN-EN 733, mounted on a baseplate with a flexible coupling. DN 150 discharge / DN 200 suction. 4-pole (1 450 rpm). Casing size 200, motor options up to 132 kW. GG25 cast iron, AISI 420 shaft. PN 10 flanges.
KDN pumps utilize a single-stage centrifugal design with a cast iron spiral casing and a closed, dynamically balanced impeller. Unlike the monoblock series NKM-G and NKP-G, the pump and the electric motor are separate units connected by a flexible coupling and mounted on a common base plate.
The standard version includes a cast iron impeller, a shaft made of AISI 420 stainless steel supported in two ball bearings, and a mechanical seal with a sealing pair made of carbon and silicon carbide with Viton elastomer.
The pumps are available with either a four-pole or two-pole electric motor depending on the specific design. They are intended for pumping water and chemically neutral liquids with similar properties, free of solid and abrasive particles. The temperature range of the pumped liquid is −10 to +140 °C, and the maximum operating pressure of the standard version is 16 bar.
The KDN series includes eight size variants that differ in connection dimensions, hydraulic parameters, and electric motor power:
KDN pumps have a flange connection PN 16, except for the KDN 150 size, which has a PN 10 flange. The selection of a specific design is based on the required flow rate, head, properties of the pumped liquid, and operating conditions.
KDN pumps are designed for water supply, water circulation in heating systems, and in air conditioning or cooling systems. They are also used for pumping liquids in agriculture, horticulture, and industrial operations.
The main difference is the construction arrangement. While the NKM-G and NKP-G series have a monoblock design, KDN pumps have the electric motor and pump as separate units connected by a flexible coupling on a common base plate.
KDN pumps are offered with either a two-pole or four-pole electric motor. The different designs vary in speed, which affects their operating parameters. Availability of variants depends on the specific size of the pump.
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