ALMATEC Pulsation Dampers, T Series for the A-Series Pumps
The ALMATEC pulsation dampers series T represents the latest generation of active pulsation dampers. They
are specially designed to be used along with ALMATEC pneumatic double diaphragm pumps of the A-Series.
A general aspect to be considered is, that a pulsation damper decreases the total capacity of the system
depending on the point of operation.
Before putting an ALMATEC pulsation damper into operation, make sure, that the materials of construction are
resistant to the chemical to be pumped. To check this, the exact damper code is required. This code, as well
as the serial number, can be found in the following. Besides, these data are noted on the identification plates
on the damper itself.
Damper code Serial number
Example of the damper type code:
T 15 E A E
Diaphragm material: E EPDM
T PTFE/EPDM compound
Material of damper head: A PA
F PE conductive
Material of damper housing: E PE
F PE conductive
T PTFE
U PTFE conductive
Size, nominal connection size: 10: 3/8“, 15: 1/2“, 25: 1“, 40: 1 1/2“, 50: 2“
ALMATEC pulsation damper, T series
Air supply connection: T 10 - T 25: R 1/8“, T 40 / T 50: R 1/4“
Max. operating pressure: 7 bar
Max. operating temperature: for damper housing in PE 70°C
for damper housing in PTFE size T 10 100°C, for the other sizes 120°C (with
damper head in PE conductive 80°C)
For inflammable liquids as well as for applications in explosion protected areas, only dampers made of
conductive polymer materials (code F resp. U) may be used. It is not necessary to ground the damper
separately, as the damper is connected conductively to the A-Series pump, which is conductive and has to be
grounded itself.
In general, pump and damper are dispatched completely mounted. Still, they can be packed in separate boxes,
especially for the bigger sizes. If so, the damper has to be screwed into the thread at the top of the center
housing [1] carefully, but only until the damper is in contact with the pump. Exceeded tightening may damage
the thread. Besides, a correct positioning of the O-ring [30] within the groove has to be ensured.
An ALMATEC T-damper can easily be attached to an A-Series pump at any time without changes of the
piping, provided that the pump is configurated with product ports both horizontally. Make sure that the plug,
center housing (Pos. 8 in the exploded view of the pump) is in the right position. For pumps delivered without
dampers, this plug can be found at the bottom side of the pump generally. Therefore, the center housing has to
be turned 180°, to get the plug to the top of the pump. Take the plug out, insert the flange-O-ring [30] and
screw the damper onto the pump. When dismounting a pump which is already being in use, take care of the
warning advices on pages 5/6 of this manual. The use of a pulsation damper of the series T reduces the
capacity of the complete system in dependence of the point of operation.
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