GESTRA UNA 38, Original Installation Instructions

Page: 16 / 48

16
Operation
WARNING
Hot liquids and steam can cause scalding.

Wear protective clothing that is
suitable for the fluid and, if necessary,
wear protective gear.
Protective clothing and protective gear must protect
the whole body against contact with escaping hot
steam.
For more information on suitable protective clothing
and safety gear refer to the safety data sheet of the
fluid in question.
You can carry out the following work during
operation:

Open and close the optional manual vent valve

Open and close the optional manual lifting lever
The UNA 38 comes with its own tool, a socket
wrench with material number 526110.
The UNA 39 is supplied with a lever for operating
the manual vent valve or manual lifting lever.
The optional hand vent valve allows manual air
venting.

To air vent the equipment turn the hand-vent
valve (viewed from top) anticlockwise.

To close the hand-vent valve after air-venting
turn it clockwise.

Fasten the hand-vent valve hand tight.
The optional float-lifting lever allows the float to be
manually lifted irrespective of the liquid level. It can
be used to purge any dirt away from the seat area
and out of the equipment by opening the orifice and
draining the liquid.
The correct direction of rotation differs in the
UNA 38 and the UNA 39.
For the UNA 38, proceed as follows:

Turn the socket wrench clockwise to open.

Turn the socket wrench anti-clockwise to close.
For the UNA 39, proceed as follows:

Turn the socket wrench anti-clockwise to open.

Turn the socket wrench clockwise to close.
You can check the correct functioning of the
equipment during operation using the GESTRA
ultrasonic measuring unit VAPOPHONE
®
or
TRAPTEST
®
(VKP 40 and VKP 40plus).

For more details refer to the installation &
operating manual of the ultrasonic measuring
unit.