Alfa Laval LKHI Centrifugal Pump for 16 bar Inlet Pressure

Application

The LKHI pump is a highly efficient and economical centrifugal pump, specially designed for inlet pressures up to 16 bar. LKHI meets the requirements of hygienic and gentle product treatment and chemical resistance, and is available in nine sizes, LKHI-10, -15, -20, -25, -35, -40, -45, -50, -60.

Standard Design

The LKHI pump is designed for CIP-cleaning with emphasis on large internal roundings and easily cleanable seals. LKHI is a hygienic pump with a stainless steel shroud for protection
of the motor. The complete unit is supported on four adjustable stainless steel legs.

Shaft Seals

LKHI can be fitted with two types of mechanical seals:
– Single internal seal.            – Flushed seal.
Both seal types have stationary seal rings of silicon carbide and rotating seal rings of carbon or silicon carbide:
1. Silicon carbide/carbon for inlet pressure up to 10 bar.
2. Silicon carbide/silicon carbide for inlet pressure higher than 10 bar.
The secondary seal of the flushed seal is a long lasting lip seal.

Technical Data

Product wetted steel parts: . . . . . . . . W. 1.4404 (316L).
Other steel parts: . . . . . . . . . . . . . . Stainless steel.
Product wetted seals: . . . . . . . . . . . EPDM.
Other O-rings: . . . . . . . . . . . . . . . . EPDM.
Finish: . . . . . . . . . . . . . . . . . . . . . Standard blasted

Connections for flushed shaft seal:
6 mm tube/Rp 1/8”

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

Motor types:
Inlet pressere 0-10 bar: .Standard motor with a fixed ball bearing on drive side.
Inlet pressure 10-16 bar .Special motor with a fixed angular-contact ball bearing on drive side.

Motor sizes
50 Hz: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 – 30.0 kW.
60 Hz: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.75 – 35.0 kW

Operating Data

Pressure
Max. inlet pressure: . . . . . . . . . . . . . 1600 kPa (16 bar).
Water pressure: . . . . . . . . . . . . . . . Normally atmospheric.
(max. 1 bar).

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

Water consumption

Water consumption: 0.25 -0.5 l/min
(Flushed seal)

Noise
Noise level (at 1 m): . . . . . . . . . . . . . 60 – 80 dB (A).
Noise level (at 3 ft.): . . . . . . . . . . . . . 60 – 80 dB (A)

Pump specific measures

Moter specific measures

*Possible to reduce dimension F by min. 59 mm for all pump models. For smaller models it will be possible to reduce dimension F even further.

Moter overview

Dimensional data are based on 2 pole, ABB motors.

Connections

* Other dimensions available on request.

 Options Ordering

A. Impeller with reduced diameter.
B. Impeller screw.
C. Motor for other voltage and/or frequency.
D. 1500 rpm. motor.
E. Motor with increased safety/flame proof motor.
F. Flushed shaft seal.
G. Seals in Nitrile (NBR) or Fluorinated rubber (FPM).
H. Surface roughness, product wetted parts: Ra ≤ 0.8 µm.
I. Seal faces in SIC/SIC (Silicon Carbide).

Please state the following when ordering
– Pump size.
– Pressure.
– Connections
– Impeller diameter.
– Motor size.
– Single or flushed shaft seal.
– Optional extras.

Note!
– The curves for LKHI are the same as those for LKH.
– For further details, see also Instruction Manual, ESE00700.

Keeping you processing

For more information about our products and services please get in touch!

JAMIE WETHERILL
Internal Sales Manager

Call: 01777 712101
Email: jamie.wetherill@moodydirect.com