DSP-4CL

dsp-4cl

Double Volute Twin Screw Pump with Shaft Seal

Flow Rate

max. 5.000 m³/h

Differential Pressure

max. 100 bar

Temperature Range

-120 °C to +350 °C

Viscosity

max. 100.000 mPas

KEY FACTS

  • Design according to API 676, 3rd Edition
  • Maintenance-friendly „PLUG & PUMP“ Cartridge Design
  • Dry-Run-Capable with double-acting Seals
  • Suitable for nearly every Liquids, incl. Multiphase Fluids and Polymers

DESIGN

  • Wide Application Range
  • Variable Rotor Designs
  • 'Plug & Pump'-Cartridge Design
  • Torque Transmission between the Drive Screw and the Idler Screw by Herringbone Gears
  • Rotors made from Single Piece Bar Stock
  • High Efficiency Execution
  • Low-Pulsation Design
  • Low-NPSHR Design
  • Clearances Designed to be contact free over the Complete Permissible Operating Range
  • Seal Options with Corresponding Flushing Plans Available

OPERATING RANGE

 
Performance Range
Flow Rate Q= max. 5.000 m³/h (22.000 GPM)
Differential Pressure P= max. 100 bar
Viscosity max. 100.000 mm²/s (cSt)
Temperature Range max. +350 °C
 

Higher Flow Rates upon Request

TYPICAL APPLICATION

  • Viscous Liquids Containing Considerable Amount of Solids
  • Lube, Crude or Fuel Oils
  • Bitumen
  • Tar
  • Asphalt
  • Fats
  • Resins
  • Residues
  • Multiphase Products Containing Liquids, Gas and Solids

CUSTOM MATERIALS

 
Pump casing 1.0619 / 1.4408 / 1.4470 / 1.4469
Casing cover 1.0425 / 1.4571 / 1.4462 / 1.4501
Screws 1.7227 / 1.4542 / 1.4571 / 1.4462 / 1.4501
Shaft seal Depending on the operating conditions

Upon Request, Klaus Union Twin Screw Pumps, Series DSP, can be offered in Special Construction Materials matching the Particular Application.

DESIGN VARIANTS

The pumps are outfitted with a foot heating (H4). This can be realized either separately or in conjunction with a bypass line. The heating system is rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C in the standard construction. It can also be used for cooling.

The thermal barrier (W) reduces ball bearing temperatures in the gearing when hot liquids are being transported.


TP NO

TP NO

submersible
centrifugal pump

Flow Rate

max. 1.600 m³/h

Delivery Head

max. 200 m L.C.

Temperature Range

-50 °C to +250 °C

Pressure Rating

max. PN 40

key facts

  • Design according to DIN EN ISO 2858 / 5199
  • Submerging Depth up to 10.000 mm
  • Design based on API 610 available on Request

DESIGN

  • Vertically Mounted, One-Stage Centrifugal Pump
  • Available with either an enclosed or unenclosed Impeller and a Liner Wall
  • Impeller integrates a Hydraulic Assist Mechanism
  • Shaft Wet-Mounted in radial SiC Bearings in the Support Tube
  • Roller Bearing packed in grease in the Bearing Lantern
  • Separate Pressure Line extends to above the Support Flange
  • Shaft Sealed via a Face Seal and Gland Packing
  • Design based on API 610 available on Request

OPERATING RANGE

 
Flow Rate Q 1.600 m³/h
Delivery Head H max. 200 m L.C.
Temperature Range t -50 °C to +250 °C
Pressure Rating p max. PN 40

Special constructions and higher outputs available.

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Heat Transfer Liquids
  • Liquid Gases

CUSTOM MATERIALS

 
Pump casing: 1.4408 or 1.0619
Impeller: 1.4408
Shaft: 1.4571
Shaft sheath: 1.4571
Internal Bearing: Silicon Carbide
Bearing Carrier: 1.0038
Shaft Seal: Acc. to product and/or customer specifications

Further materials upon request.


UP

up

vertical propeller pump
with shaft seal

Flow Rate

up to 21.500 m³/h

Delivery Head

up to 8,5 m L.C.

Temperature Range

-50 °C to +400 °C

Pressure Rating

up to PN 10

key facts

  • Propeller pump for integration into a tank
  • Made of welded cast steel
  • Adjustable propeller blades screwed to the hub
  • Bearing close-coupled with integrated tank flange
  • Shaft mounted in grease packed roller bearings
  • Shaft seal: face seal or gland packing
  • Flow direction can be reversed by repositioning the propeller blades

DESIGN

  • Vertically mounted pump for integration into a tank
  • Made of welded cast steel
  • Adjustable propeller blades screwed to the hub
  • Bearing close-coupled with integrated tank flange
  • Shaft mounted in grease packed roller bearings
  • Shaft seal: face seal or gland packing
  • Flow direction can be reversed by repositioning the propeller blades

OPERATING RANGE

Special constructions and higher outputs available.

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Paper and Cellulose Mash
  • Brine (Evaporation Plants)
  • Mineral Fertilisers (Liquid)
  • Sea Water
  • Cooling Water
  • Dyes


P

p

Pipe-bend Propeller pump

Flow Rate

max. 12.000 m³/h

Delivery Head

max. 12 m L.C.

Temperature Range

-120 °C to +250 °C

Pressure Rating

max. PN 100

key facts

  • Horizontally Mounted Propeller Pump
  • Pipe-Bend Casing made of Welded Cast Steel
  • Adjustable Propeller Blades screwed to the Hub
  • Shaft Seal: Face Seal or Gland Packing
  • Propeller can reverse Direction

DESIGN

  • Horizontally Mounted Propeller Pump
  • Pipe-Bend Casing made of welded Cast Steel
  • Adjustable Propeller Blades screwed to the Hub
  • Shaft Seal: Face Seal or Gland Packing
  • Propeller can reverse Direction

OPERATING RANGE

 
Flow Rate Q 12.000 m³/h
Delivery Head H max. 12 m L.C.
Temperature Range t -120 °C to +250 °C
Pressure Rating p max. PN 100

Special constructions and higher outputs available

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Paper and Cellulose Mash
  • Brine (Evaporation Plants)
  • Mineral Fertilisers (Liquid)
  • Sea Water
  • Cooling Water
  • Dyes

Special configurations

  • PV: Propeller Blades can be adjusted steplessly while the Pump is running
  • PK: The Propeller Unit can be completely dismantled with the Casing intact
  • Flow Direction can be reversed by repositioning the Propeller Blades

CUSTOM MATERIALS

 
Components A-8 S-8
Casing 316 Austenite Stahlguss
Impeller 316 Austenite 316 Austenite
Containment Shell Hastelloy C Hastelloy C
Pump Shaft 316 Austenite 316 Austenite / C-Steel
Bearing Lantern / Bearing Carrier Stahlguss Stahlguss
Drive Shaft C-Steel C-Steel

Further Materials upon Request

DESIGN VARIANTS

The pumps are outfitted with a heat jacket and pump casing (H1) and/or a heat jacket in the bearing lantern (H2). Both heat jackets can be realized either separately or in conjunction with a bypass line. The heat jackets in the standard construction are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C. The heat jackets can also be used for cooling.

When solids-containing liquids are being transported, the internal filter prevents inadmissibly large particles from entering the flow channels, and from there the magnetic coupling and internal bearings.

These external connections allow for external flushing, feeding and/or venting. Connection E1 is used in situations where a continuous feed into the magnet drive is desired. Connection E2 is used suitable for short-term flushing, or for external venting of the magnetic coupling.

The double isolation shell should be used in situations requiring a high level of safety. The unit consists of two interlocking isolation shells, both of which are rated for the relevant operating conditions. If one of the two units is damaged, the casing still remains leaktight. The gap between the two units can be monitored.

Inducers are often used in cases where the installation’s NPSH values are extremely low. Inducers substantially reduce pump NPSH throughout the installation without altering pump characteristics. Inducer J can be retrofitted on existing pumps, in most cases with only a minimum amount of pump modification.


DSP-2C

dsp-2c

Single Volute Twin Screw pump with mechanical seal

Flow Rate

max. 1.800 m³/h

Differential Pressure

max. 40 bar

Temperature Range

-120 °C to +350 °C

Pressure Rating

max. PN 400

KEY FACTS

  • Design according to API 676, 3rd Edition
  • Wellenabdichtung über Gleitringdichtung, Wellendichtringe oder Stopfbuchspackung
  • Shaft Seal: Face Seal or Gland Packing
  • Mechanical Seals according API 610/682
  • Modular Construction (Multi-Part-Casing)
  • Adaptive Feet with Centerline Mounting

DESIGN

  • Single Volute Twin Screw Pump in Process or in Tank Farm Design
  • Axial Split Modular Casing
  • Pressure Limiting Valve using Klaus Union Valve Series Internals
  • Centerline Mounting
  • Bearing Bracket with Oil-Lubricated or Greased-for-Life Anti-Friction Bearings
  • Spare parts are interchangeable with centrifugal pump series
  • Mechanical Seals acc. EN 12756 or API 682 / ISO 21049 as per customer preferences

OPERATING RANGE

 
Performance Range
Flow Rate Q= max. 1.800 m³/h
Differential Pressure P= max. 40 bar
Viscosity max. 100.000 mm²/s (cSt)

Higher Flow Rates upon Request

 
Pressure Ratings
Standard Construction PN 25 at +120 °C
Temperature Range t= -120 °C to +350 °C
Pressure Rating P= max. PN 400
 

Higher Pressure Ratings upon Request

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Bitumen / Asphalt
  • Tar
  • Fuel Oils (Light and Heavy)
  • Polymers
  • Aggressive, Explosive and Toxic Liquids
  • Liquids Containing Solids
  • High-Viscosity Liquids

CUSTOM MATERIALS

 
Pump Casing Cast Carbon Steel; Cast Stainless Steel; Duplex Stainless Steel; Super Duplex Stainless Steel
Liner Cast Carbon Steel; Cast Stainless Steel; Duplex Stainless Steel; Super Duplex Stainless Steel; Wear Resistant Coating
Rotors Carbon Steel, nitrated; Martensitic Stainless Steel, nitrated; Stainless Steel, hardened; Duplex Stainless Steel, hardened; Wear Resistant Coating
Shaft Seals Standard Cartridge Seals depending on the actual operating conditions following ANSI B73.1 / API 610 / API 682
 

Upon Request, Klaus Union Screw Pumps, Series DSP-2C, can be supplied also in Hastelloy, Inconel, other High Nickel Alloys or Titanium.

DESIGN VARIANTS

The pumps are outfitted with a foot heating (H4) and/or a heat jacket in the bearing lantern (H2). Both can be realized either separately or in conjunction with a bypass line. Both heating systems are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C in the standard construction. They can also be used for cooling.


NOV

nov

Single-stage centrifugal pump with mechanical Seal

Flow Rate

max. 3.500 m³/h

Delivery Head

max. 220 m L.C.

Temperature Range

-120 °C to +450 °C

Pressure Rating

max. 400 PN

key facts

  • Design according to DIN EN ISO 2858 / 5199
  • Modular System
  • Shaft Seal Packing; Single or Double Mechanical Seal (also available as a Cartridge Unit)
  • Heating for Casing and Casing Cover available
  • Mechanical Seal-Cover available

DESIGN

  • Single-Stage Centrifugal Pump
  • Shaft Sealing Space for Installation of Mechanical Seals according to DIN EN 12756 or Stuffing Box Packings Unit)
  • Heating for Casing and Casing Cover available
  • Mechanical Seal-Cover available
  • Bearing Bracket with Oil-Lubricated Anti Friction Bearings

OPERATING RANGE

 
Flow Rate Q 3.500 m³/h
Delivery Head H max. 220 m L.C.
Temperature Range t -120 °C to +450 °C
Pressure Rating p max. PN 400

Special configurations available up to PN 400, Higher outputs available

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Heat Transfer Liquids
  • Coolants
  • Liquid Gases
  • Sewage
  • Colouring Matters
  • Salt Solutions
  • Pulp

CUSTOM MATERIALS

 
Pump casing: 1.4408 or 1.0619
Impeller: 1.4408
Casing cover: 1.4571
Shaft: 1.4462
Shaft sheath: 1.4571
Bearing lantern: 1.0619
Bearing carrier: 0.7043
Shaft seal: Acc. to product and/or customer specifications

Further Materials upon Request

IDENTIFICATION CODE:

 
Bearing carrier Realization Comments
NOV Standard Oiled, with deep groove ball bearing

NACHSETZZEICHEN (AUSFÜHRUNGEN):

 
H1 heated pump casing
H2 jacketed bearing lantern
J inducer
 

DESIGN VARIANTS

The pumps are outfitted with a heat jacket and pump casing (H1) and/or a heat jacket in the bearing lantern (H2). Both heat jackets can be realized either separately or in conjunction with a bypass line. The heat jackets in the standard construction are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C. The heat jackets can also be used for cooling.

Inducers are often used in cases where the installation’s NPSH values are extremely low. Inducers substantially reduce pump NPSH throughout the installation without altering pump characteristics. Inducer J can be retrofitted on existing pumps, in most cases with only a minimum amount of pump modification.


SLM NVT

slm nvt

Single-stage submersible centrifugal pump
with Magnet Drive

Flow Rate

up to 900 m³/h

Delivery Head

up to 200 m L.C.

Temperature Range

-40 °C up to +200 °C

Pressure Rating

up to PN 40

key facts

  • Design according to DIN EN ISO 2858 / DIN EN ISO 15783
  • Maintenance-Free Permanent Magnet Drive
  • Modular Design
  • No Dynamic Seal, Separation of Liquid Chamber and Atmosphere by Means of Containment Shell
  • Submerging depth up to 6.000 mm

DESIGN

  • Submerged pump with magnet drive
  • Submerging depth up to 6.000 mm
  • Dry support tube
  • Synchronous Permanent Magnet Drive
  • Easy to Maintain
  • Separation of liquid Chamber and Atmosphere by means of Containment Shell
  • Greased-for-Life Anti-Friction Bearings
  • Product-Lubricated Journal Bearings; Made of Silicon Carbide (SSiC); Customized Materials (e.g. Carbon, WOC etc.) on demand

OPERATING RANGE

Flow Rate Q 900 m³/h
Delivery Head H max. 200 m L.C.
Temperature Range t -40 °C to +200 °C
Pressure Rating p max. PN 40

Special constructions up to PN100. Higher outputs available.

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Heat Transfer Liquids
  • Aggressive, Explosive, Toxic and Malodorous Liquids
  • Valuable Liquids
  • Industrial Effluent

CUSTOM MATERIALS

Pump casing: 1.4408 oder 1.0619
Impeller: 1.4408
Containment shell: 1.4571/2.4610
Magnet carrier: 1.4571
Radial journal bearings: Silicon Carbide
Intermediate lantern: 1.4571
Bearing carrier: 0.7043
Discharge pipe: 1.4571
Support tube: 1.4571

Tank flange: 1.4571 or according to customer’s specifications. Other materials available.

NACHSETZZEICHEN (AUSFÜHRUNGEN):

AUSFÜHRUNGSVARIANTEN

The pumps are outfitted with a heat jacket and pump casing (H1) and/or a heat jacket in the bearing lantern (H2). Both heat jackets can be realized either separately or in conjunction with a bypass line. The heat jackets in the standard construction are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C. The heat jackets can also be used for cooling.

When solids-containing liquids are being transported, the internal filter prevents inadmissibly large particles from entering the flow channels, and from there the magnetic coupling and internal bearings.

These external connections allow for external flushing, feeding and/or venting. Connection E1 is used in situations where a continuous feed into the magnet drive is desired. Connection E2 is used suitable for short-term flushing, or for external venting of the magnetic coupling.

The double isolation shell should be used in situations requiring a high level of safety. The unit consists of two interlocking isolation shells, both of which are rated for the relevant operating conditions. If one of the two units is damaged, the casing still remains leaktight. The gap between the two units can be monitored.


SLM AV

slm av

single-stage centrifugal pump
with magnet drive

Flow Rate

up to 200 m³/h

Delivery Head

up to 155 m L.C.

Temperature Range

-200 °C to +450 °C

Pressure Rating

up to PN 400

KEY FACTS

  • Design according to ASME B73.3-2015
  • Maintenance-Free Permanent Magnet Drive
  • Modular Design
  • No Dynamic Seal, Separation of Liquid Chamber and Atmosphere by Means of Containment Shell

DESIGN

  • Single-Stage Centrifugal Pump in Process Design
  • Synchronous Permanent Magnet Drive
  • Easy to Maintain
  • Separation of liquid Chamber and Atmosphere by means of Containment Shell
  • Bearing Bracket with Oil-Lubricated or Greased-for-Life Anti-Friction Bearings; Optional: Close-Coupled Design
  • Product-Lubricated Journal Bearings; Made of Silicon Carbide (SSiC); Customized Materials (e.g. Carbon, WOC etc.) on demand

OPERATING RANGE

Flow Rate Q 200 m³/h
Delivery Head H up to 155 m L.C.
Temperature t -200 °C to +450 °C
Pressure Rating p up to PN 400

Higher flow rates upon request

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Heat Transfer Liquids
  • Coolants
  • Liquid Gases
  • Aggressive, Explosive, Toxic and Malodorous Liquids
  • Valuable Liquids
  • Liquids Containing Solids

CUSTOM MATERIALS

Pump casing: 1.4408
Impeller: 1.4408
Containment Shell: 1.4571/2.4610
Magnet Carrier: 1.4571
Radial journal Bearings: Silicon Carbide
Intermediate Lantern: 1.0619
Bearing Carrier: 0.7043

Further materials are available.

Flow Rate

up to 200 m³/h

Delivery Head

up to 155 m

Temperature Range

-120 °C to +400 °C

Pressure Rating

up to PN 400

key facts

  • No Alignment between Pump and Motor
  • No Coupling and Coupling Guard
  • No Ball Bearings
    • Pump does not require scheduled Maintenance
    • No Oil Lubrication necessary
    • Lower noise level
  • High Stiffness of the Pump Shaft because of small overhung compared to Pumps with Shaft Seals
  • Use of standard high efficient IEC and NEMA Motors contrary to canned Motors
    • Better availability with standard Motors
    • Maintenance of Motors is standardized and can be done by the customer on site
  • Base Plates for Close-Coupled Design do not need to be rigid acc. to API 685 – 7.3

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Aggressive, Explosive and Toxic Liquids
  • Liquid Petroleum Gases (LPG)
  • Heat Transfer Liquids
  • Coolants
  • Liquids Containing Solids
  • High-Viscosity Liquids

OPERATING RANGE

Flow Rate Q= 3.500 m³/h
Delivery Head H= up to 220 m
Temperature t= -120 °C to +400 °C
Pressure Rating p= up to PN 400

Higher flow rates upon request

CUSTOM MATERIALS

  • Pump casing: 1.4408
  • Impeller: 1.4408
  • Containment Shell: 1.4571/2.4610
  • Magnet Carrier: 1.4571
  • Journal Bearings: Silicon Carbide
  • Intermediate Lantern: 1.0619
  • Bearing Bracket: 0.7043

Further Materials are available

Close-Coupled Design:

Variants Design Note
SLM AVB Close-Coupled Pump Motor lantern (without shaft coupling)

NACHSETZZEICHEN (AUSFÜHRUNGEN):

H1 Heated Pump Casing
H2 Heated Bearing Lantern
S Thermal Barrier without Secondary Seal
W Thermal Barrier with Secondary Seal
F Internal Filter
E1 External feed, internal partial flow holes closed off
E2 External Flushing / Venting, internal partial flow holes open
E1F External partial flow with main flow filter according to DGRL
D Double Containment Shell
J Inducer

DESIGN VARIANTS

The pumps are outfitted with a heat jacket and pump casing (H1) and/or a heat jacket in the bearing lantern (H2). Both heat jackets can be realized either separately or in conjunction with a bypass line. The heat jackets in the standard construction are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C. The heat jackets can also be used for cooling.

The thermal barrier acts as a structural element between the bearing carrier (in the bearing carrier model) or drive motor (in the close coupled model), whereas the hydraulic system allows for heat transfer. This reduces ball bearing temperatures in the gearing when hot liquids are being transported. A radial shaft sealing ring can also be integrated into the thermal barrier for purposes of sealing the magnet driver. The sealing ring acts as a secondary seal that prevents the product from leaking into the environment through a leak in the isolation shell. In order for this secondary seal to be used, the magnet driver chamber must be monitored so that leaks can be detected in good time.

When solids-containing liquids are being transported, the internal filter prevents inadmissibly large particles from entering the flow channels, and from there the magnetic coupling and internal bearings.

These external connections allow for external flushing, feeding and/or venting. Connection E1 is used in situations where a continuous feed into the magnet drive is desired. Connection E2 is used suitable for short-term flushing, or for external venting of the magnetic coupling.

The double isolation shell should be used in situations requiring a high level of safety. The unit consists of two interlocking isolation shells, both of which are rated for the relevant operating conditions. If one of the two units is damaged, the casing still remains leaktight. The gap between the two units can be monitored.

Inducers are often used in cases where the installation’s NPSH values are extremely low. Inducers substantially reduce pump NPSH throughout the installation without altering pump characteristics. Inducer J can be retrofitted on existing pumps, in most cases with only a minimum amount of pump modification.


SLM NHO

slm nho

Single-stage centrifugal pump with Magnet Drive for high temperature applications

Flow Rate

max. 1.200 m³/h

Delivery Head

max. 215 m L.C.

Temperature Range

-120 °C to +450 °C

Pressure Rating

max. PN 40

key facts

  • Design according to DIN EN ISO 2858 / DIN EN ISO 15783
  • Temperature Range up to 450 °C
  • Maintenance-Free Permanent Magnet Drive
  • Modular Design
  • No Dynamic Seal, Separation of Liquid Chamber and Atmosphere by Means of Containment Shell

DESIGN

  • Single-Stage Centrifugal Pump in Process Oriented Design
  • Temperature Range up to 450 °C
  • Synchronous Permanent Magnet Drive
  • Easy to Maintain
  • Seperation of Liquid Chamber and Atmosphere by Means of Isolation Shell
  • Bearing Bracket with Oil-Lubricated Anti-Friction Bearings; Optional: Close-Coupled Design
  • Product-Lubricated Journal Bearings; Made of Silicon Carbide (SSiC); Customized Materials (e.g. Carbon, WOC etc.) on demand

OPERATING RANGE

Flow Rate Q 1.200 m³/h
Delivery Head H max. 215 m L.C.
Temperature Range t -120 °C to +450 °C (uncooled)
Pressure Rating p max. PN 40

Special constructions up to PN400. Higher outputs available.

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Aggressive, Explosive, Toxic and Malodorous Liquids
  • Liquid Gases
  • Heat Transfer Liquids
  • Coolants
  • Liquids Containing Solids
  • High-Viscosity Liquids

CUSTOM MATERIALS

 
Pump casing: 1.0619 or 1.4408
Impeller: 1.4408
Containment shell: 1.4571/2.4610 or Titanium
Magnet carrier: 1.4571
Radial journal bearings: Silicon Carbide
Bearing carrier: 0.7043

Further materials upon request.

Flow Rate

max. 1.200 m³/h

Delivery Head

max. 215 m

Temperature Range

-120 °C to +450 °C

Pressure Rating

max. PN 40

Key facts

  • No Alignment between Pump and Motor
  • No Coupling and Coupling Guard
  • No Ball Bearings
    • Pump does not require scheduled Maintenance
    • No Oil Lubrication necessary
    • Lower noise level
  • High Stiffness of the Pump Shaft because of small overhung compared to Pumps with Shaft Seals
  • Use of standard high efficient IEC and NEMA Motors contrary to canned Motors
    • Better availability with standard Motors
    • Maintenance of Motors is standardized and can be done by the customer on site
  • Base Plates for Close-Coupled Design do not need to be rigid acc. to API 685 – 7.3

DESIGN

  • Close-Coupled Design
  • Process oriented design
  • Magnet drive
  • Leakproof
  • Horizontally mounted
  • Modular system

OPERATING RANGE

 
50Hz 60Hz
Flow Rate Q 3.500 m³/h 4.200 m³/h
Delivery Head H 150 m 215 m
Temperature Range t -50 °C bis +250 °C bis +300 °C Typ NVN/NVS TYP NVO
Pressure Rating p PN16

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Aggressive, Explosive and Toxic Liquids
  • Liquid Gases
  • Heat Transfer Liquids
  • Coolants
  • Liquids Containing Solids
  • High-Viscosity Liquids

CUSTOM MATERIALS

  • Pump casing: 1.4408 oder 1.0619
  • Impeller: 1.4408
  • Containment shell: 1.4571/2.4610
  • Magnet carrier: 1.4571
  • Internal bearings: Siliciumcarbid
  • Bearing lantern: 1.0619
  • Other materials available

NACHSETZZEICHEN (AUSFÜHRUNGEN):

 
H1 heated pump casing
H2 jacketed bearing lantern
S thermal barrier without secondary seal
W thermal barrier with secondary seal
F internal filter
E1 external feeding, internal secondary-flow boring enclosed
E2 external flushing and venting; internal secondary-flow boring non-enclosed
E1F external secondary flow  with main flow filter per DGRL
J inducer

DESIGN VARIANTS

The pumps are outfitted with a heat jacket and pump casing (H1) and/or a heat jacket in the bearing lantern (H2). Both heat jackets can be realized either separately or in conjunction with a bypass line. The heat jackets in the standard construction are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C. The heat jackets can also be used for cooling.

The thermal barrier acts as a structural element between the bearing carrier (in the bearing carrier model) or drive motor (in the close coupled model), whereas the hydraulic system allows for heat transfer. This reduces ball bearing temperatures in the gearing when hot liquids are being transported. A radial shaft sealing ring can also be integrated into the thermal barrier for purposes of sealing the magnet driver. The sealing ring acts as a secondary seal that prevents the product from leaking into the environment through a leak in the isolation shell. In order for this secondary seal to be used, the magnet driver chamber must be monitored so that leaks can be detected in good time.

When solids-containing liquids are being transported, the internal filter prevents inadmissibly large particles from entering the flow channels, and from there the magnetic coupling and internal bearings.

These external connections allow for external flushing, feeding and/or venting. Connection E1 is used in situations where a continuous feed into the magnet drive is desired. Connection E2 is used suitable for short-term flushing, or for external venting of the magnetic coupling.

Inducers are often used in cases where the installation’s NPSH values are extremely low. Inducers substantially reduce pump NPSH throughout the installation without altering pump characteristics. Inducer J can be retrofitted on existing pumps, in most cases with only a minimum amount of pump modification.


SLM NV

slm nv

single-stage centrifugal pump
with magnet drive

Flow Rate

up to 3.500 m³/h

Delivery Head

up to 220 m L.C.

Temperature Range

-120 °C to +450 °C

Pressure Rating

up to PN 400

key facts

  • Design according to DIN EN ISO 2858 / DIN EN ISO 15783
  • Maintenance-Free Permanent Magnet Drive
  • Modular Design
  • No Dynamic Seal, Separation of Liquid Chamber and Atmosphere by Means of Containment Shell
  • Greased-for-Life Anti-Friction Bearings as standard

DESIGN

  • Single-Stage Centrifugal Pump in Process Design
  • Synchronous Permanent Magnet Drive
  • Easy to Maintain
  • Separation of liquid Chamber and Atmosphere by means of Containment Shell
  • Bearing Bracket with Oil-Lubricated or Greased-for-Life Anti-Friction Bearings; Optional: Close-Coupled Design
  • Product-Lubricated Journal Bearings; Made of Silicon Carbide (SSiC); Customized Materials (e.g. Carbon, WOC etc.) on demand

OPERATING RANGE

Flow Rate Q 3.500 m³/h
Delivery Head H up to 220 m L.C.
Temperature Range t -120 °C to +450 °C
Pressure Rating p up to PN 400

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Heat Transfer Liquids
  • Coolants
  • Liquid Petroleum Gases (LPG)
  • Aggressive, explosive, toxic and odorous media
  • Valuable media
  • Liquids Containing Solids
  • High-Viscosity Liquids

CUSTOM MATERIALS

  • Pump casing: 1.4408 or 1.0619
  • Impeller: 1.4408
  • Containment Shell: 1.4571/2.4610
  • Magnet Carrier: 1.4571
  • Journal Bearings: Silicon Carbide
  • Intermediate Lantern: 1.0619
  • Bearing Bracket: 0.7043
  • Further Materials are available

Flow Rate

up to 3.500 m³/h

Delivery Head

up to 220 m

Temperature Range

-120 °C to +400 °C

Pressure Rating

up to PN 400

key facts

  • No Alignment between Pump and Motor
  • No Coupling and Coupling Guard
  • No Ball Bearings
    • Pump does not require scheduled Maintenance
    • No Oil Lubrication necessary
    • Lower noise level
  • High Stiffness of the Pump Shaft because of small overhung compared to Pumps with Shaft Seals
  • Use of standard high efficient IEC and NEMA Motors contrary to canned Motors
    • Better availability with standard Motors
    • Maintenance of Motors is standardized and can be done by the customer on site
  • Base Plates for Close-Coupled Design do not need to be rigid acc. to API 685 – 7.3

DESIGN

  • Close-Coupled Design
  • Process Design
  • Magnet Drive
  • Leak-free
  • Horizontal set up
  • Modular Design

OPERATING RANGE

Flow Rate Q= 3.500 m³/h
Delivery Head H= up to 220 m
Temperature Range t= -120 °C to +450 °C
Pressure Rating p= up to PN 400

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Aggressive, Explosive and Toxic Liquids
  • Liquid Petroleum Gases (LPG)
  • Heat Transfer Liquids
  • Coolants
  • Liquids Containing Solids
  • High-Viscosity Liquids

CUSTOM MATERIALS

  • Pump casing: 1.4408 or 1.0619
  • Impeller: 1.4408
  • Containment Shell: 1.4571/2.4610
  • Magnet Carrier: 1.4571
  • Journal Bearings: Silicon Carbide
  • Intermediate Lantern: 1.0619
  • Further Materials are available

Flow Rate

up to 1.200 m/h

Delivery Head

up to 215 m

Temperature Range

-50 °C to +300 °C

Pressure Rating

up to PN 400

KEY FACTS

  • Pressure Rating: up to PN 400
  • Design according to DIN EN ISO 2858 / DIN EN ISO 15783
  • Maintenance-Free Permanent Magnet Drive
  • Modular Design
  • No Dynamic Seal, Separation of Liquid Chamber and Atmosphere by Means of Containment Shell
  • Greased-for-Life Anti-Friction Bearings as standard

DESIGN

  • Single-Stage Centrifugal Pump
  • Process Design
  • Design High-Pressure Applications
  • Magnet Drive
  • Leak-free
  • Horizontal set up
  • Modular Design
  • Bearing Bracket with Oil-Lubricated Anti-Friction Bearings

OPERATING RANGE

Flow Rate Q 3.500 m³/h
Delivery Head H up to 220 m
Temperature Range t -120 °C to +450 °C
Pressure Rating p up to PN 400

TYPICAL APPLICATION

  • Acids
  • Lyes
  • Hydrocarbons
  • Aggressive, Explosive and Toxic Liquids
  • Liquid Petroleum Gases (LPG)
  • Heat Transfer Liquids
  • Coolants
  • Liquids Containing Solids
  • High-Viscosity Liquids

CUSTOM MATERIALS

  • Pump Casing: 1.4571
  • Impeller: 1.4408
  • Containment Shell: Titanium
  • Magnet Carrier: 1.4571
  • Journal Bearings: Silicon Carbide
  • Intermediate Lantern: 1.0619
  • Bearing Bracket: 0.7043
  • Further Materials are available

DESIGN VARIANTS:

H1 Heated Pump Casing
H2 Heated Bearing Lantern
S Thermal Barrier without Secondary Seal
W Thermal Barrier with Secondary Seal
F Internal Filter
Z, C Containment Shell of Zirconium Oxide (Z); Containment Shell plasic-coated CFK (C)
E1 External feed, internal partial flow holes closed off
E2 External Flushing/ Venting, internal partial flow holes open
E1F External partial flow with main flow filter according to DGRL
OT Pump without partial flow, see description SLM NV OT
Double Containment Shell Double Containment Shell
J Inducer
L Secondary seal between Anti-Friction Bearings

AUSFÜHRUNGSVARIANTEN

The pumps are outfitted with a heat jacket and pump casing (H1) and/or a heat jacket in the bearing lantern (H2). Both heat jackets can be realized either separately or in conjunction with a bypass line. The heat jackets in the standard construction are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C. The heat jackets can also be used for cooling.

The thermal barrier acts as a structural element between the bearing carrier (in the bearing carrier model) or drive motor (in the close coupled model), whereas the hydraulic system allows for heat transfer. This reduces ball bearing temperatures in the gearing when hot liquids are being transported. A radial shaft sealing ring can also be integrated into the thermal barrier for purposes of sealing the magnet driver. The sealing ring acts as a secondary seal that prevents the product from leaking into the environment through a leak in the isolation shell. In order for this secondary seal to be used, the magnet driver chamber must be monitored so that leaks can be detected in good time.

When solids-containing liquids are being transported, the internal filter prevents inadmissibly large particles from entering the flow channels, and from there the magnetic coupling and internal bearings.

This isolation shell generates no Eddy Current losses in the magnet drive. This isolation shell offers maximum pump effi ciency and is particularly benefi cial where heat input into the pumped liquid is to be avoided.

These external connections allow for external flushing, feeding and/or venting. Connection E1 is used in situations where a continuous feed into the magnet drive is desired. Connection E2 is used suitable for short-term flushing, or for external venting of the magnetic coupling.

The self-cleaning discharge fi lter is used for applications where liquids with a moderate percentage of solids are handled. The flush flow is picked up externally from the discharge filter and re-introduced into the magnet coupling. The internal flush flow ports are closed.

This construction type is used for applications where liquids with a high percentage of solids are handled. The casing cover is equipped with two external connections for feeding and draining of the isolation shell area. The specially designed journal bearings prevent any solids within the pumped liquid from entering the magnet drive.

The double isolation shell should be used in situations requiring a high level of safety. The unit consists of two interlocking isolation shells, both of which are rated for the relevant operating conditions. If one of the two units is damaged, the casing still remains leaktight. The gap between the two units can be monitored.

Inducers are often used in cases where the installation’s NPSH values are extremely low. Inducers substantially reduce pump NPSH throughout the installation without altering pump characteristics. Inducer J can be retrofitted on existing pumps, in most cases with only a minimum amount of pump modification.

The secondary sealing consists of a highperformance radial shaft seal ring, which ensures that there is no immediate leakage of the liquid to the atmosphere in the drive shaft area in the event of an isolation shell failure.