KDN 80 (2 900 rpm) – horizontal DIN-EN 733 pump, mounted on a baseplate, DN 80

Name: KDN 80 (2 900 rpm) – horizontal DIN-EN 733 pump, mounted on a baseplate, DN 80
Brand: Pokorny Industries
SKU: 409

Standardized single-stage pump DIN-EN 733 on a baseplate with a flexible coupling. DN discharge 80 / DN suction 100. 2-pole. 4 casing sizes, motor selection up to 45 kW. GG25 cast iron, AISI 420 shaft.

Product description

KDN 80 (2 900 rpm) is a standardized horizontal single-stage pump to DIN-EN 733, supplied on a baseplate with a flexible coupling. Nominal discharge nozzle diameter DN 80, suction nozzle diameter DN 100. Flanged connection PN 16 to DIN 2533.

Volute casing made of GG25 cast iron (UNI ISO 185), shaft made of AISI 420 stainless steel. Impeller made of GG25 cast iron, dynamically balanced. Standard carbon/silicon carbide mechanical seal with Viton O-rings to DIN 24960. Gland packing (PTFE-impregnated ramie) available on request.

Available as a hydraulic unit / wet end (bare shaft), a pump on a baseplate without a motor, or a complete assembly with motor. Casings 160–250 are available with a 2-pole motor. Fluid temperature -10 °C to +140 °C, max. operating pressure 16 bar.

KDN 80 (2 900 rpm) is suitable for applications requiring high flow rates and high heads that the NKP-G/NKM-G close-coupled range cannot cover—especially with motors up to 45 kW.

Main technical specifications

Parameter	Value
Model range	KDN 80 (2 900 rpm) (SACI pumps)
Standard	DIN-EN 733 (ex DIN 24255)
Design	on a baseplate with flexible coupling
Number of poles	2P
DN discharge / suction	80 / 100
Flow rate range Q	up to 360 m³/h (2P) / up to 180 m³/h (4P)
Head range H	up to 88 m (2P) / up to 41 m (4P)
Motor power P2	1,5–45 kW (depending on configuration)
Power supply	230/400 V (up to 2,2 kW) · 400 V (above 2,2 kW)
Pumped fluid temperature	-10 °C to +140 °C
Max. ambient temperature	40 °C
Max. operating pressure	16 bar
Flanges	PN 16 DIN 2533
Casing material	GG25 cast iron (UNI ISO 185)
Impeller material	GG25 cast iron (bronze on request)
Shaft material	AISI 420 stainless steel
Mechanical seal	carbon/silicon carbide, Viton, DIN 24960
Gland packing	PTFE-impregnated ramie (on request)

Available pumps (bare shaft)

Casing	Number of poles	Bare-shaft weight
KDN 80-160	2P	55 kg
KDN 80-200	2P	84 kg
KDN 80-250	2P	104 kg

The hydraulic unit is identical to the NKP-G 80 / NKM-G 80. Contact us for the exact selection of casing and motor.

Applications

Water supply – waterworks, main distribution networks, transmission mains.
Industrial piping systems – cooling circuits, process systems, process water.
Heating large buildings – circulation up to 140 °C.
Fire protection systems – main pump in fire-fighting systems.
Agriculture – irrigation of large areas, pumping stations.

Key benefits

DIN-EN 733 – standardised dimensions, interchangeable with products from other manufacturers.
Motor options up to 45 kW – significantly higher power ratings than enbloc NKP-G/NKM-G 80.
Head up to 88 m (2P) – for demanding high-pressure applications.
AISI 420 shaft – greater resistance to corrosion and wear.
Gland packing – an alternative to a mechanical seal.

Supply configurations

Bare shaft (code 0) – hydraulic section only, without coupling or motor.
Pump on baseplate without motor – pump with coupling mounted on a baseplate.
Complete assembly (code 1/2) – pump with motor and a standard or spacer coupling.

Optional accessories

Bronze impeller GCuSn5Zn5Pb5 (version B)
Wear rings (Wr) – extended service life
Alternative mechanical seals – SiC/Viton, SiC/EPDM, bellows seals
Gland packing – PTFE-impregnated ramie

The hydraulic section is identical. The KDN 80 (2 900 rpm) mounted on a baseplate offers motor options up to 45 kW (enbloc max. 30 kW for NKP-G, 22 kW for NKM-G) and easy servicing. KDN also features an AISI 420 shaft, Viton seals and gland packing.

KDN pumps come with a 24-month warranty.

Features

Feature	Value	Unit
DNA = input / suction	100	DN
DNM = output / displacement	80	DN
Flow rate Q	0 to 360	m³/h
Displacement range H	0 to 88	m
Temperature of the pumped medium	-10 to 140	°C