Dickow - API & ISO Centrifugal Process Pumps

DICKOW PUMP COMPANY has produced pumps for over 100 years. Their pumps are working steadily and dependably in all corners of the globe. 

As the technical world leader in magnetic drive pumps, Dickow holds many patents, is ISO 9001 certified, and is a supplier-partner of major chemical companies. 

A. SEAL-LESS MAG-DRIVE PUMPS

1. Process Pump ANSI to API 685 series PRM

General
Magnetic coupled DICKOW-pumps of the series PRM according to API 685 are heavy duty sealless pumps. The containment shell forms a closed system to separate the pumped liquid from the atmosphere by confined gaskets. The equipment (including auxiliaries) is designed and constructed for a minimum service life of 20 years (excluding normal wear parts) and an uninterrupted operation of at least 3 years.

Applications
Magnetic coupled PRM-pumps improve plant and personnel safety and reduce maintenance costs, because 90% of these costs are caused by lea king seals. The PRM-pumps will handle nearly all kinds of liquids in the chemical and petrochemical industry, in refineries and industrial heating plants. Especially liquids which are toxic, flammable, bad smelling or which react on contact with the atmosphere, that means if no leakage is acceptable. For all these services the containment shell replaces the double acting mechanical seal with its external flushing system and the related control equipment. The performance range of the PRM-pumps is subdivided such that the best efficiency is guaranteed for all service conditions. The capacity goes up to 900 m3/h (4000 USgpm), the differential head up to 150 mLC (500 ft).  

2. Sealless Magnetic Driven Centrifugal Pumps Type KML/KMB/KMV

General
The DICKOW pump series KM are sealless centrifugal pumps. The static containment shell forms a closed system with hermetically sealed liquid end.  Model AMB pumps match ANSI casing dimensions.

Applications
Magnetic driven KM-pumps are designed to improve plant and personnel safety. Especially when handling toxic, explosive or other dangerous liquids which react on contact with the atmosphere. The KM-pumps operate maintenance-free and their containment shells replace double acting mechanical seals, along with external fluid reservoirs and the necessary control equipment.
Maximum capacity appr. 70 m3/h (300 US-gpm), differential head 65 mLC (213 ft). Temperature range -30°C to 200°C (390°F), working pressure 16 bar (232 psi). 

3. Sealless Magnetic Driven Centrifugal Pumps type NM

General
Magnetic coupled DICKOW-Pumps of series NMB/NML are of sealless design. The containment shell forms a closed system with hermetically sealed liquid end.

Applications
Magnetic driven NM-pumps are designed to improve plant and personnel safety, especially when handling toxic, explosive or other danger ous liquids which react on contact with the atmos phere. For all these services the containment shell replaces double acting mechanical seals, along with external fluid reservoirs and the necessary control equipment. NM-pumps therefore offer exceptional benefits to the chemical, petrochemical and allied industries and fulfill all environment protection regulations.
Maximum operating temperature 240°C (465°F) for the standard NMB/NML-type. The NMW-design with no internal circulation and dead-ended magnet end allows temperatures up to 400°C (750°F). The maximum allowable working pressure is 25 bar (364 psi). 

4. Sealless Magnetic Coupled Centrifugal Pumps Type NMR

General
Magnetic coupled DICKOW-Pumps of series NMR are of sealless design. The containment shell forms a closed system with hermetically sealed liquid end. The NMR are designed for the chemical process industry. A leak-free magnetic drive is used to improve plant and personnel safety in industrial heating plants.

Applications
Magnetic driven NMR-pumps are designed to improve plant and personal safety, especially when handling toxic, explosive or other dangerous liquids which react with the atmoshpere. For all these services the containment shell replaces double acting mechanical seals with external fluid reservoirs and the necessary control equipment. NMR-Pumps therefore offer exceptional benefits to the chemical, petrochemical and allied industries and fulfill all environment protection rules. 

5. Hot Oil Circulation Pumps series NMW/ NMWR/ PRMW

General
Magnetic coupled DICKOW-pumps of the series NMW/PRMW are of sealless design. The containment shell forms a closed system with hermetically sealed liquid end.

Applications
The magnetic driven NMW/PRMW-pumps are designed for hot oil applications, to improve plant and personnel safety in industrial heating plants. Mechanical seals are eliminated. No utility cooling needed. In these cases, double mechanical seals are required in conventional pumps. 

6. Side-channel Pumps Type SCM

General
The DICKOW-pump, type SCM, is a one or multistage, self-priming horizontal side-channel pump with magnet coupling. The side-channel pump with its high differential head has the advantage of operating more economically than normal centrifugal pumps applied for low capacity and high heads. Due to these facts, the side-channel pumps are appropriate to solve many pumping problems in the chemical and petrochemical process. The SCM-pump is a heavy duty unit for handling clean pumpage without solids. Sealless magnetic driven pumps are designed to improve plant's and personnel safety, especially when handling toxic, explosive or other dangerous liquids which react on contact with the atmosphere. For all such services, the static shroud replaces double acting mechanical seals, along with external fluid reservoirs or barrier fluid circulating systems. Due to the fact that 90% of pump failures and required service base on leaking mechanical seals, the sealless design will save maintenance and spare parts costs remarkably. Considerable are the total cost savings of ownership. 

7. Sealless Magnetic Driven Vertical Centrifugal Pumps Type KML/KMB/KMV

General
The DICKOW pump series KM are sealless centrifugal pumps. The static containment shell forms a closed system with hermetically sealed liquid end.  Model AMB pumps match ANSI casing dimensions.

Applications
Magnetic driven KM-pumps are designed to improve plant and personnel safety. Especially when handling toxic, explosive or other dangerous liquids which react on contact with the atmosphere. The KM-pumps operate maintenance-free and their containment shells replace double acting mechanical seals, along with external fluid reservoirs and the necessary control equipment.
Maximum capacity appr. 70 m3/h (300 US-gpm), differential head 65 mLC (213 ft). Temperature range -30°C to 200°C (390°F), working pressure 16 bar (232 psi). 

8. Vertical Self-priming Side Channel Pumps Type SMV

Field of application
The side-channel pumps are self-priming and operate more economically (better efficiency) than normal centrifugal pumps, when handling low flows and high heads. Due to these facts, the side-channel pumps are appropriate to solve many pumping problems in industrial processes. They can be used for almost all liquids which are free of any abrasive solids and of suitable viscosity. The vertical side-channel pumps are suitable especially for tank farms with underground storage tanks with a diameter of max. 2,5 m (8.2 ft). The construction of the pumps enables an installation directly on the dome cover. That means, suction lift is only slightly above the tank diameter and the priming pipe can be kept short. For handling toxic, explosive and other dangerous liquids in chemical and petrochemical industries, a sealless pump design with permanent magnetic coupling - without shaft duct to the atmosphere - is also available. Since the static containment shell forms a closed system with hermetically sealed liquid end, an operation with zero leakage is granted. These pumps are maintenance free because no shaft sealing is provided. 

9. NMT Submersible Long Shaft Centrifugal Pumps for the Chemical Industry

General

The DICKOW® submersible pump, type NCT, for the chemical industry is a vertical pump with separate discharge pipe.
The maximum capacity goes up to 700 m³/h. Higher capacities are available on request.

The pump type NCT has been developed for chemical, petrochemical and related industries. With a wide selection of materials, the DICKOW® submersible pumps are suitable for handling almost all liquids which are used in above mentioned industries.
For example: acids, lyes, hydrocarbons, condensation products, solvents etc. 

10. Multistage Centrifugal Pumps Type HZSM/HZSMA

General
Magnetic coupled DICKOW-Pumps of series HZSM / HZSMA are of sealless design. The containment shell forms a closed system with hermetically sealed liquid end. The properties of the integrated side channel stage allows the handling of entrained gas and operation under suction lift conditions.

Applications
Magnetic driven HZSM / HZSMA-pumps are designed to improve plant and personnel safety, especially when handling toxic, explosive or other dangerous liquids which react on contact with the atmosphere. For all these services the containment shell replaces double acting mechanical seals, along with external fluid reservoirs and the necessary control equipment. HZSM / HZSMA-pumps therefore offer exceptional benefits to the chemical, petrochemical and allied industries and fulfill all environment protection rules. Due to the fact that 90% of pump failures are caused by leaking shaft seals, the sealless design increases the availability and reduces maintenance costs. The HZSM-type is used in tank farms, for offloading rail cars and trucks, filling of storage tanks and other applications where priming of empty suction pipes is required. Considering low NPSH-values, gas handling capability and sealless design, the HZSMA-type offers special benefits to liquified gas applications. Typical application is filling of LPG-trucks and rail cars in refineries. 

11. HZMR Multistage Centrifugal Pumps

DICKOW®-pumps of series HZMR are sealless multistage horizontal centrifugal pumps, driven by a synchronous permanent magnetic coupling. The containment shell is sealed by a confined gasket and separates the pumped liquid from the atmosphere. There are no leakage endangered dynamical shaft sealing available.

Due to the fact that 90% of pump failures are caused by leaking shaft seals, the sealless design increases the availability and reduces maintenance costs. 

B. SHAFT SEALED PUMPS

1. Heavy Duty Process Pump according to API 610, 10th ED. Series NCR

GENERAL
The DICKOW-pumps, type NCR, are heavy duty centrifugal pumps for petroleum, petrochemical and natural gas industries. The pumps are designed and manufactured according to API 610, 10th ed. / ISO 13709. This international standard specifies requirements for centrifugal pumps used in the above industries. The standard does not refer to any outline dimensions of the pumps.

APPLICATIONS
The performance range of the NCR-pumps is subdivided such that acceptable efficiencies can be achieved for all service conditions. The maximum capacity goes up to 700 m3/h (3100 USgpm). Differential head up to 145 mLC (480 ft) at 2900 rpm and 220 mLC (660 ft) at 3500 rpm.
With a wide selection of materials and the possibility to install all shaft sealing systems according to API 682, DICKOW-NCR-pumps are suitable to convey nearly all kinds of liquids which are usual in the above mentioned industries. E.g. acids, lyes, chlorinated hydrocarbons, heat transfer media (HTM), all kinds of hydrocarbon fuels, liquid sulphur, melted plastics, bitumen etc.
If the application requires sealless pumps, consider also our magnetic coupled PRM-pumps according to API 685. 

2. Circulation Pumps series NKLs, design N10q

General
The DICKOW-Standard pumps, series NKLs according to EN 733, are designed as centrifugal pumps of light duty for handling heat transfer media.
Dimensions and performance range comply with the requirements of EN 733. Thus, the performance range is subdivided such that best efficiency is granted at all service conditions.

Application
The NKLs pumps will be applied as circulating pumps in industrial heating plants. The performance range covers capacities up to 400 nf/h and differential heads up to 90 mLC in 50 cycles service.
The maximum allowable operating temperature PT is 340°C without additional cooling. The NKLs-pumps with the single acting N10q- seals can be applied when handling HTM with boiling pressure at operating temperature below the atmospheric pressure (<1 bar abs). 

3. NCL Medium Duty Centrifugal Pumps

The DICKOW® medium duty pump is designed for handling liquids in the chemical and petrochemical industry, in refineries, for heat transfer liquids etc.

Dimensions and performance range are developed in accordance to EN 22858 (ISO 2858). The whole range is so subdivided that for all service conditions the best efficiency is guaranteed. The maximum capacity goes up to 900 m³/h or 3960 US gpm.

With a wide selection of materials and shaft sealing systems they are suitable to handle nearly all kind of liquids which are usual in the above mentioned industries. For example we call light fuels (all kinds), acids, lye, solvents, hydrocarbons, heat transfer liquids, heavy fuel, liquid sulphur, melted plastics, bitumen etc.

For handling hot water above 190 ºC (375 ºF), our pump types NHL are available. 

4. NHL/HPL/HPR/NHM Hot Water Circulation Centrifugal Pumps

DICKOW® hot water circulation pumps, type NHL, HPL, HPR and NHM, have been developed for medium and large size heating plants, for heating calendars, presses, large buildings and similar applications which require temperatures > 140 ºC (284 ºF).
The design of the pumps is based on long years of experience in the field of handling hot water and grants high availability and reliability in operation.
The NHL series is designed for pressures up to 45 bar @ 238 ºC (464 ºF), maximum capacity is approximate 900 m³/h (3960 gpm) and differential head approximate 150 mLC (492 ft).
The HPL/HPR series is designed for pressures up to 80 bar @ 280 ºC (536 ºF), maximum capacity is approximate 300 m³/h (1320 gpm) and differential head approximate 60 mLC (197 ft). 

5. Self-Priming Side-Channel Pumps Type SC

The DICKOW-pump, type SC, is a one or multi-stage, self-priming horizontal side-channel pump. The side-channel pump with its high differential head - also at low speed - has the advantage of operating more economically than normal centrifugal pumps applied for low capacity and high heads. Due to these facts, the side-channel pumps are able to solve many pumping problems in the chemical and petrochemical process plants. The SC-pumps are also able to prime empty suction lines after initially filling with liquid before start-up. The maximum allowable operating temperature is 240 C (465 F). 

6. HZV Multistage Submerged Centrifugal Pumps

General, field of application

The DICKOW® vertical submersible long shaft pump is a one or multistage centrifugal pump. The performance range covers capacities up to 500 m³/h (2200 US gpm) and differential heads up to 400 mLC (1310 ft) and is subdivided such that best efficiency is granted at all service conditions.

With a wide selection of materials, several design options and shaft sealing systems, the HZV pumps are suitable for handling almost all kinds of liquids There are 5 sentencesare free of abrasive solids and of suitable viscosity.

Common applications are unloading of fuels and solvents from underground tanks, e.g. for kerosene respectively jet fuel in hydrant systems for aircraft refueling (Cat.1-design) and pumping condensate or ammonia (barrel casing design).

7. NCV/NCVL Inline Vertical Centrifugal Pumps

The DICKOW®-Inline-Pumps, series NCV / NCVL, have been developed for the chemical, petrochemical and related industries.

Since the pumps are installed inline, only a minimum of space is required and therefore, these pumps are suitable for package units. No time-consuming alignment of couplings is required. Ball bearing failures through inadequate alignment are excluded.

With a wide selection of materials and shaft sealing systems, the NCV-pumps are suitable for handling nearly all kinds of liquids used in the above mentioned industries.
For example: acids, lyes, hydrocarbons, hot water up to 234 ºC (455 ºF), hot oil up to 350 ºC (660 ºF), cooling fluids, solvents etc. 

8. NCT Submersible Long Shaft Centrifugal Pumps for the Chemical Industry

General

The DICKOW® submersible pump, type NCT, for the chemical industry is a vertical pump with separate discharge pipe.
The maximum capacity goes up to 700 m³/h. Higher capacities are available on request.

The pump type NCT has been developed for chemical, petrochemical and related industries. With a wide selection of materials, the DICKOW® submersible pumps are suitable for handling almost all liquids which are used in above mentioned industries.
For example: acids, lyes, hydrocarbons, condensation products, solvents etc. 

8. Centrifugal Multi-Stage Pumps Type HZ/HZA

General
HZ/HZA-pumps are applied in industrial and municipal water supply, for handling condensates boiler feed water, fuels and for various other applications.
The type HZA of end suction design has been developed for operating conditions with low NPSHA-values. The wear resistant SiC-sleeve bearing on the suction side reduces the maintenance costs because there is no second mechanical seal required.
The performance range is subdivided to achieve best efficiencies for all service conditions.
With a wide selection of materials and the possibility of applying several shaft sealing systems as well as a hermetically sealed permanent magnetic coupling, the HZ / HZA- pumps are suitable for handling almost all kinds of liquids which are free of abrasive solids and of suitable viscosity.