Depa DH 40-TP, Инструкции по эксплуатации и монтажу

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19
DEPA
®
Air Operated Diaphragm Pumps
must wear ear
defenders.
above 85 dB (A): Room with dangerous
noise level! Each door
must have a clearly
noticeable warning sign
to warn persons from
entering the room
without ear defenders.
Measured mean sound pressure level
Lp [dB(A)] acc. to DIN EN 29614-2 (ISO
9614-2) in 1m distance with a pump head
of 60 m, pump DL50-FA-NNN, control air
7 bar, medium water, 20 °C = 66.8 dB(A).
With a different pump rating and pump size
or other application related conditions the
mean sound pressure level may deviate.
3.0 Installation
3.1 To be observed before
installation
1 The installation must only be carried out
by persons who have the necessary skills
for this work (see chapter 2 “Safety”).
2 Before installation align the pump
correctly and fasten it without any
tension. Pipelines must be assembled in
a way that the basic weight of the lines is
not reasting on the pump.
3 In order to avoid damage to the pump new
installations should generally be checked
for any debris (welding beads, pieces of
wire, etc.) in tank and pipeline system.
4 Consider the arrangement of the pump
with respect to suction and discharge
heads.
5 The pump system must be designed
according to the requirements of the
application. Valves or spools must
be installed as close as possible to
pressure port.
This also applies for T-fittings with valve
for bypass control or pressure relief
valves, pressure gauges, flow control
valves and shut-off valves.
6 Thoroughly examine the alignment of the
pump with the pipelines, in order to avoid
strain and premature wear.
7 Check all pipelines for leaks. This applies
in particular for the suction line, in order
to avoid the intake of air.
8 If the fluid to be pumped contains solid
particles bigger than specified in Table
1 in Section 1.4.4), a filter must be
installed. The filter must be of such a
size, that the change in resistance at the
pump inlet port is only minor. This filter
must be permanently monitored and
cleaned if necessary. Insert a suction
basket.
9 Fluids which change their viscosity must
be permanently agitated, or the tank must
be fitted with a temperature sensor. With
increasing viscosity start the agitator
and/or the heating. This is of special
importance for intermittent operation!
10 Retighten the clamps bands on pump
and pulsation dampener before initial
start-up. The torques specified on Page
45 ff must be observed.
3.2 Design and arrangement of
connecting lines
By experience, the cross section of the
pipelines must be designed to allow a flow
velocity of 1 to 3 m/s in the pressure line and
0.5 to 1.5 m/s in the suction line (see Section
9.0 for pump connection sizes).