6
• Make air line connection as shown in page 4, gure 1. Connect accessories to the wall or to a
xed place. Make sure that air line conducts electricity.
• Place conditioner (air regulator) before air line of the diaphragm pump. Water in pressurized
air line may cause frosting or outlet air freezing. This may cause that pump operates in an
unbalanced way or it stops completely. Moisture and water in the pressurized air from the
compressor may be decreased by being used with water retainer that may be used in addition
to air drying unit of user. This will prevent that polluted air enters in this pump. Besides, it will
decrease or prevent freezing in outlet line by keeping a sum of water within line.
• Open air valve approximately between 1/2” and 3/4” to operate the pump. After the pump
operates, air ow may be given to air valve at demanded degree. If valve opening increases
change frequency but does not increase ow speed, it means that uid formed a cavitation
within suction line. In this case, air coming to valve is decreased and the pump is activated
slowly. Thus, cavitation is prevented.
• Fluid ow in the diaphragm pump is controlled in two ways either by controlling pressurized air
line entering in the pump with a pressure regulator, ball valve or solenoid valve or by controlling
uid outlet line of the pump with a pressure regulator, ball valve or solenoid valve.
Suction Line
Connection of the pump to master suction line after suction nozzle should be made with exible
hoses. This situation prevents that some parts of the pump are broken during knocking and that
bolts are loosened.
• Place cut-off valve before the suction line during installation of the pump. The valve shall
provide that pump is removed easily at repair and maintenance times.
• You can observe whether there is regular uid ow in section line of the pump or not via
manometer placed on the line.
• Flexible and master line pipes to be connected to suction line should be conductive. Ground
the pipes if you did not use conductive pipes.
• Diaphragm life becomes shorter in uid inlet pressure higher than 1 bar. The most distinct
characteristic of this is that diaphragm life of the diaphragm pumps connected under high
tonnage tanks is short due to tank pressure.
• The suction is from the bottom by construction in top check valve diaphragm pumps.
• Compression line should be connected to master line with a exible hose just like suction line
so that pipes in the pump are not exposed to knocking, bolts are not dissolved and pump parts
are not damaged.
• Place ball cut-off valve before the compression line in a way to be close to the pump (see
gure 1).
• Place manometer before the compression line to be able to read the pressure (see gure 1).
• Flexible and master line pipes to be connected to suction line should be conductive. Ground
the pipes if you did not use conductive pipes (see gure 1).
Air pressurized between air line connected to the diaphragm pump (shown with 3 in
gure 1) should be relieved. Otherwise, pressurized air provides that the pump acts in
an unexpected way. This situation may cause accidents and intoxications due to moving
parts.
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