Application

The LKHPF pump is a highly efficient and economical centrifugal

pump, specially designed for high inlet pressures, e.g. for use in

filtration systems. The LKHPF pump meets the requirements of

sanitary and gentle product treatment and chemical resistance, and is

available in nine sizes, LKHPF-10, -20, -25, -35, -40, -45, -50, -60, -70.

Standard Design

The LKHPF pump is designed for CIP-cleaning with an emphasis on

large internal radii and easily cleanable seals.

The LKHPF pump is a sanitary pump with a stainless steel shroud

for protection of the motor. The complete unit is supported on four

adjustable stainless steel legs.

Shaft Seals

The LKHPF pump can be fitted with two types of mechanical seal:

- Single internal seal.

- Flushed seal.

Both seal types have a stationary seal ring and rotating seal ring in

silicon carbide.

The secondary seal of the flushed seal is a long lasting lip seal.

TECHNICAL DATA

Materials

Product wetted steel parts: . . . . . . . . W. 1.4404 (316L).

Other steel parts: . . . . . . . . . . . . . . W. 1.4301 (304).

Product wetted seals: . . . . . . . . . . . EPDM rubber.

Finish: . . . . . . . . . . . . . . . . . . . . . Semi bright.

Connections for flushed shaft seal:

6 mm tube/Rp 1/8”.

Motor Sizes

50 Hz: . . . . . . . . . . . . . . . . . . . . . 1.5 - 75.0 kW.

60 Hz: . . . . . . . . . . . . . . . . . . . . . 1.75 - 86.0 kW.

Motor

Foot-flanged special motor with a fixed angular contact bearing

according to the IEC metric standard, 2 poles = 3000/3600 rpm at

50/60 Hz, IP 55 (with drain hole sealed with labyrinth plug), insulation

class F.

Warranty

Extended 3-year warranty on LKHPF pumps. The warranty covers all

non- wear parts on the condition that genuine Alfa Laval spare parts

are used.

OPERATING DATA

Pressure

Max. inlet pressure: . . . . . . . . . . . . . 4000 kPa (40 bar).

Water pressure: . . . . . . . . . . . . . . . Max. 100 kPa (1 bar).

(Flushed seal)

Temperature

Temperature range: . . . . . . . . . . . . . -10°C to +140°C (EPDM).

Water consumption

Water consumption: . . . . . . . . . . . . Approx. 0.25-0.5 l/min.

(Flushed seal)

Noise

Noise level (at 1m): . . . . . . . . . . . . . 60 - 80 dB (A).

Dimensions (mm)

Flow chart

Frequency: 50 Hz, Speed (Synchr.): 3000 rpm

Options

A. Impeller with reduced diameter.

B. Impeller screw.

C. Motor for other voltage and/or frequency.

D. Flushed shaft seal.

E. Seals in Nitrile (NBR) or Fluorinated rubber (FPM).

F. Surface roughness, product wetted parts: Ra≤0.8μm

Ordering

Please state the following when ordering:

- Pumpsize.

- Connections.

- Impeller diameter.

- Motor size.

- Voltage and frequency.

- Flow, pressure and temperature.

- Density and viscosity of the product.

- Options.

Note!

- The curves for LKHPF are identical to those for LKH.

- For further details, see also ESE01950.