DVZ Biomaster PLUS Series Final Documentation Download

Page: 100 / 145

Issue: 04.05.2011

DVZ-SKA-”BIOMASTER”-PLUS – Pump P2

Page 3 of 6

SKA-PLUS-ANNEX P2-Eng

Safety hints for maintenance, inspection and
assembly

The user must ensure that all maintenance, inspection and
assembly tasks are performed by authorised and qualified
expert personnel, who have adequately informed
themselves by thoroughly studying the operating
instructions.
On principle, work on the machine must only be performed
when the machine is at a standstill. The procedure for
shutting down the machine as described in the operating
instructions must be observed without fail.
Pumps or units handling noxious liquids must be de
contaminated.

All safety and protective devices must immediately be
refitted and made operational on completion on the
work.
Before re-starting, the items listed in the „Commissioning“
section must be observed.

Unauthorised modifications and genuine spare parts

Modifications or changes to the machine are only per-

missible after consultation with the manufacturer.

Safety can only be ensured by using genuine spare parts
and accessories authorised by the manufacturer. If other
parts are used the manufacturer cannot be held liable for
the consequences.

Transportation and intermediate storage

Packing

The graphic symbols on the packaging must be observed.

During transport and storage, the suction and discharge

and the auxiliary connections of the pump must be

plugged. The plugs must be removed when the pump

unit is installed.

Transportation

Due to their weight, lifting equipment must be used to

transfer progressive cavity pumps and all pump units to

their final location.

The generally applicable saftey regulations for lifting

loads must be observed. The crane device and cables
must not be attached to the attachment eyes of the motor.
When transporting the pumps by means of a crane, the
sling ropes must be placed safely around the suction
casing.
In case of complete pump aggregates, a rope must be
additionally fixed to the driving motor.
The sling ropes must be placed around the pump and/or
the pump aggregate so that when being lifted, they are in
exact balance.

ATTENTION:

During transportation ensure that the

aggregate is secured against toppling over.

Transport damage
ATTENTION:

Check the pump for damage on receipt. Any

damage detected must be notified immediately.

Installation/Mounting
Installation

The pumps can be installed horizontally or vertically,

with bearings arranged at the top

Foundation

The foundation design depends on the size of the pump

and/or the pump aggregate and the local installation

conditions.

For exact data on the pump and aggregate dimensions,

please refer to our table of dimensions.

The foundation may be designed as a concrete founda-

tion or load-carrying foundation frame, for example of

the steel type.

All foundation designs are subject to the following: The

foundation must be designed so that it can take the

weight of the pump aggregate on the entire surface.

Arrangement of a steel foundation plate

A steel foundation plate must be designed in such a way
that the base plate makes full contact and can be secured
with bolts or by welding.

ATTENTION

: If only some of the areas of the base plate

are supported, the plate sags in the center or the pump
aggregate can be twisted. This influences the alignment of
the pump aggregate and can cause high noise emission
and damage.

Arrangement of concrete foundations

Concrete foundations must be horizontal, straight and
clean and must fully absorb the load exerted on the
foundations. Concrete foundations must be designed in
such a way that the base plate makes full contact and can
be secured with suitable bolts drawing)

ATTENTION:

If only some of the areas of the base plate

are supported, the plate sags in the center or the pump
aggregate can be twisted. This influences the alignment of
the pump aggregate and can cause high noise emission
and damage.

Space requirements for maintenance and servicing

ATTENTION:

The pump must be accessible from all

sides, allowing necessary inspections to be performed with
ease.
Sufficient space must be provided for maintenance and
servicing operations, especially for the replacement of
pumping elements. The space required for removing the
stator and rotor is given in the pump or pump unit
dimensional or general arrangement drawings. In addition,
it must be ensured that all piping can be removed and
replaced without obstruction.

Installation of pipework
Nominal diameters

The nominal diameters of the suction and discharge
pipes should be designed in accordance with the nominal
diameters of the pump flanges. In the event of severe
deviations, especially on the suction side, the factory must
be consulted.

Supports and flange connections

The pipework must be connected in a stress-free manner,
via the flange connections, to the pump. Supports should
be provided close to the pump, and the connections
should be easy to make, in order to prevent any distortion.
After loosening the bolts, the flanges should be neither
skewed nor springy, nor should they rest on each other
under pressure. Appropriate measures (e.g. the