up to 3.500 m³/h up to 220 m L.C. -120 °C to +450 °C up to PN 400 KEY FACTS
DESIGN OPERATING RANGE Higher flow rates upon request TYPICAL APPLICATION CUSTOM MATERIALS Further materials are available. up to 3.500 m³/h up to 220 m -120 °C to +400 °C up to PN 400 key facts
TYPICAL APPLICATION OPERATING RANGE Higher flow rates upon request CUSTOM MATERIALS Further Materials are available Close-Coupled Design: NACHSETZZEICHEN (AUSFÜHRUNGEN):Flow Rate
Delivery Head
Temperature Range
Pressure Rating
Design according to ASME B73.3-2003
Maintenance-Free Permanent Magnet Drive
Modular Design
No Dynamic Seal, Separation of Liquid Chamber and Atmosphere by Means of Containment Shell
Flow Rate
Q
3.500 m³/h
Delivery Head
H
up to 220 m L.C.
Temperature
t
-120 °C to +450 °C
Pressure Rating
p
up to PN 400
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
Flow Rate
Delivery Head
Temperature Range
Pressure Rating
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
Variants
Design
Note
SLM AVB
Close-Coupled Pump
Motor lantern (without shaft coupling)
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.
