DP DPHM, Инструкция по установке и эксплуатации

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5 Pump Introduction
5.1 Model key
Table 4: Model key Example
5.2 Description of the product
The horizontal multi-stage centrifugal pump is
designed for pumping clean, or slightly aggressive,
watery mediums. The pump is easy to install,
commission and operate.
The hydraulic assembly is driven by an electric motor.
All hydraulic parts of the pump are made of stainless
steel. Pump casings are available in stainless steel or
cast-iron.
5.3 Intended use
The pumps DPHM are suitable to transport and
increase the pressure of cold and hot water without
wear to parts within the indicated working range. The
transport of liquids with a different viscosity or density
than water is possible as well. For this a motor with an
adjusted power could be required. Ask DP-Pumps or
your distributor for advice.
Any other or further use of the pump is not in
conformity with its intended use. DP-Pumps does not
accept any liability for any damage or injury that
results from this. The pump is produced in
accordance with the current standards and
guidelines. Use the pump only in a perfect technical
state, in conformance with the intended use
described below.
The
Intended use
as laid down in ISO 12100:2010 is
the use for which the technical product is intended
according to the specifications of the manufacturer.
The use of the product has been described in the
sales brochure and in the user manual. Always
observe the instructions given in the user manual.
When in doubt the product must be used as becomes
evident from its construction, version and function.
5.4 Operation
The rotating impeller causes the pressure at the inlet
of the impeller to drop. This decrease in pressure
creates the flow through the suction connection (A).
Every stage (B) consists of an impeller and a diffusor.
The capacity of the pump is determined by the size of
the passageway of the stage. The pressure of the
stage is determined by the diameter of the impeller.
Because of the modular type of construction it is
possible to choose the number of impellers most
suited to the required duty point. After leaving the last
impeller the medium flows between the pump stages
and the outer sleeve (C) and exits the pump at the
discharge connection (D)
DP H M C 2 /2 B
Label DP Product Label
Material/
Construction H Horizontal
M All hydraulic parts Stainless Steel 1.4301 / AISI 304 with close coupled motor
C Cast Iron pump casing
Connections DIN connection size: suction G 5/4 - discharge G 1
2 Size (Capacity in m
3
/h at Q
opt
)
/2 Number of stages
B Design version B
ID4376
Figure 3: DPHM(C) 2/4/6
2013
1394
A
D
E
F
B
C