Description Of The Product; Construction; Function; Set Up And Installation - Speck pumpen V Mode D'emploi

OPERATING INSTRUCTIONS

Description of the Product

14

Construction

14.1
SPECK liquid ring vacuum pumps of the
V / VG - type are closed coupled pumps. The
motor is also serving as pump shaft. The shaft
sealing is effected
mechanical seal.
The pump is of simple, robust construction.

Function

14.2
The liquid ring rotates inside the working area
eccentrically to the
transmits the drive performance by the
circulating liquid ring as compression power to
the gas to be delivered. This produces low
pulsation compression.
Illustr 1: Function
The service liquid - normally water - must be
added and cooled
dissipates the resulting compression heat and
adds liquid to the ring, since part of the liquid is
continuously dissipated along with the gas on
the pressure side. The liquid can be separated
from the gas in a discharge separator
attached.

Set up and Installation

15
CAUTION
The non-observation of all safety
informations given under "5 Setting
up/Installation" shall invalidate any claims
of warranty including claims for
compensation of damages.
by a single acting
shaft. The impeller
continuously. This

Place of Installation

15.1
Always choose a place of installation, where
pump is easily accessible.

Setting-up the Unit

15.2
The vacuum pump has to be screwed with the
motor feet without warping to the base plate
or a plain base plate.
If low vibration running is a high priority, the
unit must be fixed to a vibration insulated
foundation (with no fixed connection between
the base plate and the foundation or the
equipment frame).
If the floor is uneven, chock up the base
plate/foot with appropriate flat objects, cement
or similar. Any warping of the base plate badly
affects the alignment of the coupling. It is
advisable to check the alignment of the
coupling with a ruler or a gauge (before and)
after tightening the base plate.
The mounting position is to be horizontal. The
suction and discharge fitting of the pump
should be positioned vertically facing upward
or horizontally to the right (view towards
pump). The horizontal discharge connection is
situated at bottom. In order to avoid the pump
to be drained out, when not being used, the
pressure pipe has to be raised up to the middle
of the shaft.

Pipes

15.3
Suction and discharge connections as well as
the connection for the operating liquid are
sealed, when the pumps is supplied, in order
to avoid the penetration of any foreign bodies.
The seals are not to be removed before the
pipes are fitted.
The internal diametre of the suction and
discharge pipe as well as the pipes for the
operating liquid should not be smaller than the
corresponding pump connections and as short
as possible. For longer pipes wider internal
diametres should be chosen.
The pipes should be fitted to the pump without
strain. In case of big temperature differences,
a compensator in the pipe should be provided
additionally for the suction and discharge side.
Before starting the pump the sealings of the
pipes have to be checked carefully.

15.3.1 Suction pipes

In the suction pipe a non return valve has to be
mounted in order to avoid the filling of the
vacuum pipe with the operating liquid resp. in
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