Acer AIR-104 Bedienungshandbuch PDF herunterladen (Seite 6)

GENERAL PUMP

A member of the Interpump Group

LH SERIES

Page 6

7. GENERAL INFORMATION ABOUT PUMP

USE

The LH pump has been designed to pump fresh filtered

water at room temperature. LHZ and LHN special stainless

steel versions are also available for critical fluids.

7.1 Water temperature

Water temperature is critical for the pump life, the higher it

is, the more likely it is to create cavitation, resulting in

premature seal and valve failures.

Below is the temperature chart

and relevant limitations:

<104

Water is considered to be at room

temperature.

from

104

140

feed the plunger pump with a centrifugal

pump supplying at least twice the plunger

pump volume at 30 to 45 PSI

reduce pump rated RPM by 30% to 50%

Make sure the crankshaft turns as

indicated by the arrows located neat the

drive shaft projection

>140

standard pump not suitable, contact our

Customer service Department

7.2 Max flow and pressure ratings

The performance data indicated in the catalog and on the

rating plate refer to the maximum performance of the

pump. The use of the pump below the rated performances

does not allow the drop in power absorbed to be balanced

by altering the pressure or volume of the pump above its

maximum value.

7.3 Lowest operating RPM

The lowest operating speed of the crankshaft for all

LH’s (all versions) is 350 RPM

8. CONNECTIONS AND PLUGS

LH pumps are provided with (Fig. 3):

1 - 2 inlet ports IN Ø 3”.

Suction line connection to any of the two inlet ports

is acceptable, the port not being used should be

sealed with the correct plug.

2 - 2 outlet ports OUT Ø 1.4”.

3 - 1 hole DRAIN provided underneath the crankcase

and designed to drain out the water leakage of the

pressure packings. This hole must always be left

open (see paragraph 10.3, Fig 7, page 9).

1 2 3 4 5 6 7 8 9 10 11 ... 20 21

Owner’s Manual 1
LH SERIES 10

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