NPK SERIES

The main area of applications of armoured pumps NPK, which are designed with metallic wear parts in wetted areas, are in applications with different mediums from normal to heavy wear.

By using selected material qualities, this pump type can also be used with corrosive/abrasive media with a grain size of up to 100 mm.

Impeller, wear plates and casing are dimensioned according to the requirements and optimised to achieve the best possible service life.

Even under the most severe operating conditions, the NPK series thus achieves the lowest life cycle costs.

The NPK series are single-stage centrifugal pumps with easily replaceable wear parts and adjustable suction gap. The housing and the wear plates are clamped over the two housing covers by means of tie rods.

The wear and corrosion resistant HBN materials are a result of our continuous research and development work.

HBN 440 – wear resistant cast iron, Ni-Hard IV replacement

HBN 450 – highly wear-resistant cast iron, hardness up to 650 HB

HBN 480 – corrosion resistant cast iron, hardness up to 650 HB

TECHNICAL DATA

MAX FLOW                                                                   until 4.600 m³/h

DELIVERY HEAD, SINGLE STAGE                                95 meters

ROTATING SPEED                                                         2.950 rpm

NOMINAL CONNECTION SIZES                                  DN32 – DN500

MAX. OPERATING PRESSURE                                    10 bar – 16 bar

MAX TEMPERATURE                                                   max. 160°C

PRESSURE PORT POSITION                                        STEPWISE

CORROSION RESISTANCE                                           ph 3-14

NPw SERIES

The NPW series of metal centrifugal pumps are mainly used in applications with light to medium wear.

By using selected material qualities, this type can also be used with slightly corrosive / abrasive media

This series is a single-stage centrifugal pump made of high-strength cast steel with easily replaceable wear parts and the possibility of suction gap adjustment.

Impeller, wear plates and housing are dimensioned according to the requirements and optimised to achieve the best possible service life. Even under the most difficult operating conditions, the NPW series thus achieves the lowest life cycle costs.

The NPW single-stage centrifugal pump series has easily replaceable wear parts. The wear plates and the housing are clamped via the two housing covers using tie rods.

The NPW pump series is a cost-effective pump for pumping slightly abrasive media and is used as:

Drainage pump in quarries

Feed pump in tunnel construction

Mixer pump in the ready-mix concrete industry

Your advantages:

Material qualities optimised for your application with low life cycle costs

Cost-effective pump variant for tough applications

TECHNICAL DATA

MAX FLOW                                                                   until 4.600 m³/h

DELIVERY HEAD, SINGLE STAGE                                70 meters

ROTATING SPEED                                                        2.950 rpm

NOMINAL CONNECTION SIZES                                  DN 40 – DN 450

MAX. PRESSURE                                                          6 bar

MAX. TEMPERATURE                                                 max. 160°C

PRESSURE PORT POSITION                                        STEPWISE

CORROSION RESISTANCE                                           ph 3-14

KB SERIES

KB-SERIE dredging pumps for tunneling and special civil engineering.

The metal centrifugal pump types KB/KBK/KBH/ KBKM are the right choice where the highest wear stresses are to be expected.

The compact pump series has been developed for the demanding operating conditions in tunneling and special civil engineering with a rough operating environment and cramped installation conditions.

The compact design of our high-performance and highly wear-resistant KB, KBK, KBKT series pumps are tailor-made for use as feed or transfer pumps under cramped installation conditions in microtunnelling and pipe jacking.

The wall thicknesses are generously dimensioned and thus take into account both the stress caused by sliding wear (fine solid particles) and the impact stress caused by a high proportion of coarse grains.

The pumps with ND 100, 125, 150 and 200 discharge nozzles are available for a wide range of applications. Low overall heights, highly wear-resistant materials and shaft seals by means of a balanced impeller or our self-developed mechanical seal HGD guarantee safe use in AVN drives worldwide.

Features:

■ Easy maintenance

■ Easy adjustment of the suction gap

■ Strongly dimensioned closed impellers, housing and wear plates

■ The generously dimensioned wall thicknesses provide extreme resistance, both under high impact stress and with a high proportion of coarse grain in the pumped medium.

TECHNICAL DATA

FLOW                                                                              50 m³/h – 5000 m³/h

DELIVERY HEAD, SINGLE STAGE                                 85 meters

ROTATING SPEED                                                         2.950 rpm

NOMINAL CONNECTION SIZES                                   DN 100 – DN 500

MAX. PRESSURE                                                            6 bar

MAX. TEMPERATURE                                                   max. 160°C

PRESSURE PORT POSITION                                         STEPWISE

CORROSION RESISTANCE                                            ph 3-14