6 Technical data
It is important to observe the technical data during installation, operation and maintenance.
Inform personnel about the technical data.
6.1
Technical data
The LKH pump is a highly efficient and econominal centrifugal pump, which meets the requirements of sanitary and gentle
product treatment and chemical resistsnce. LKH Prime is available in the following sizes -20. The instruction manual is part of
the delivery. Read the instructions carefully. The pump is very heavy. Alfa Laval therefore recommends the use of a lifting crane
when handling the pump.
Data
Max. inlet pressure
500 kPa
(5 bar)
(72.5 psi )
Temperature range
-10
o
C to +140
o
C (EPDM) (14 to 284
o
F )
Max. speed:
3600 rpm
Min. speed, pumping product (no air):
900RPM
Min. speed, evacuating air:
2800RPM (full speed 2 poled motor, 50Hz)
Materials
Product wetted steel parts
AISI 316L
Other steel parts
Stainless steel
Finish
Standard blasted
Product wetted seals
EPDM (standard)
Other O-rings
EPDM (standard)
Alternative seals
Nitrile (NBR) and fluorinated rubber (FPM)
Shaft seal
Seal types
External single or double mechanical seal
Max. temperature flush media
70
o
C
Max. water pressure (DMS)
Normally atmospheric (max. 5 bar) (max. 72.5 psi)
Water consumption (double mechanical seal)
0.25-0.5 l/min. (0.07-0.13 gl )
Material, stationary seal ring
Acid-resistant steel with sealing surface of silicon carbide
Material, rotating seal ring
Carbon (standard) or silicon carbide
Material, O-rings
EPDM (standard)
Alternative material, O-rings
Nitrile (NBR) and fluorinated rubber (FPM).
Air evacuation time (no media supply)
Max 15 min
NOTE: If running SiC/SiC single seal, the static seal face must be marked “LKH Prime”.
Motor
Foot-flanged motor according to IEC metric or NEMA standard, 2 poles = 3000/3600 rpm. at 50/60 Hz IP55, insulation class F
For further information, see PD sheet.
31
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