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Alfa Laval LKH Solid C Centrifugal Pump

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The Standard Duty Pump

SolidC Pump

Solid CThe SolidC pump is designed for standard duty applications, like pumping CIP (Cleaning In Place) solutions, utilities, water (processing, heating, cooling), washing machines, simple transport duty within working range. SolidC is suited for use in the food, dairy, beverage, personal care, pharmaceutical, light chemical and water industries.
Standard design
The SolidC pump consists of a standard motor, stub shaft, mechanical compression coupling, adaptor, back plate, impeller, pump casing and shaft seal.
The SolidC pump is designed for CIP with emphasis on large internal roundings and cleanable seals.
SolidC has a stainless steel shroud for protection of the motor, and the complete unit is supported on four adjustable legs.
Shaft seals
The SolidC pump is equipped with either an external single or a flushed shaft seal. Both have stationary seal rings in acid-resistant steel AISI 329 with sealing surface in silicon carbide and rotating seal rings in carbon. The secondary seal of the flushed seal is a long lasting lip seal.


Product wetted steel parts: Acid-resistant steel 1.4404 (316L).
Other steel parts: Stainless steel 1.4301 (304).
Finish: Blasted (standard)3A polishing (Ra 0.8).
Product wetted seals: EPDM rubber (acc. to FDA).

Technical data

Max. inlet pressure: 400 kPa (4 bar).
Temperature range: -10C to +120C (EPDM).

Flushed shaft seal (FSS):

Water pressure inlet: max. 100 kpa (1 bar).
Water consumption: 0.25 -0.5 l/min.

Connections for FSS:

R 1/8" (BSP) external thread.


Foot-flanged motor according to the IEC metric standard (EFF II), 2 poles = 3000/3600 rpm. at 50/60 Hz, IP 55 (with drain hole with labyrinth plug), insulation class F.

Voltage and frequency

3 ~, 50 Hz, 220-240V Δ/380-420VY ≤ 4 kW
3 ~, 60 Hz, 250-280V Δ/440-480VY ≤ 4.6 kW 
3 ~, 50 Hz, 380-420V Δ/660-690VY ≥ 5.5 kW
3 ~, 60 Hz, 440-480V Δ ≥ 6.4 kW

Motor sizes

50 Hz: 1.1, 1.5, 2.2, 3, 4, 5.5, 7.5, 11, 15, 18.5, 22 kW
60 Hz: 1.3, 1.75, 2.5, 3.5, 4.6, 6.4, 8.6, 12.5, 17, 21, 25 kW.

When used with frequency converter the 22 kW motor only has 20 kW effect.


Extended 3-years warranty on the SolidC Centrifugal Pump range. The warranty covers all non wear parts on the condition that genuine Alfa Laval Spare Parts are used.

Dimensions (mm)



- Impeller with reduced diameter.
- Motor for other voltage and/or frequency.
- 1500 rpm. motor.
- Flushed shaft seal.
- Product wetted seals of Nitrile (NBR), Fluorinated rubber (FPM) or FEP.
- Rotating seal ring of Silicon Carbide.
Please state the following when ordering:
- Pump size.
- Connections.
- Impeller diameter.
- Motor size.
- Voltage and frequency.
- Flow, pressure and temperature.
- Density and viscosity of the product.
- Options. 
For further details, see also IM 70821.
This product has EHEDG certification
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