vda050710sdsm-rev0419
Surge Dampeners •
4
www
.
versamatic
.
com
Principle of Operation
The Versa-Matic Surge Dampener reduces flow and pressure pulsation which is
characteristic of reciprocating pumps.
PRINCIPLE OF OPERATION
The surge dampener uses a flexible virgin PTFE diaphragm to separate a liquid
chamber from a compressed air chamber. After the dampener is manually
charged with air, the diaphragm strokes at the same rate as the pump strokes.
This movement effectively "dampens" flow and pressure fluctuations.
TEMPERATURE LIMITATIONS
Operating temperature limitations are as follows.
Material
Minimum Temp.
Maximum Temp.
PVDF
0°F/ -18°C
212°F / 100°C
Nylon
32°F/ 0°C
180°F / 82°C
Polypropylene
32°F/ 0°C
180°F / 82°C
Virgin PTFE
-35°F/ -31°C
212°F / 100°C
Nitrile
-10°F/ -23°C
190°F / 88°C
INSTALLATION & START-UP
Locate the unit in the discharge piping near the pump. The dampener will operate
in any position. However, when used with liquids that tend to settle out, the unit
should be installed at the top side of piping to provide easy discharge of foreign
solids by gravity.
Adjust the inlet air pressure to the dampener until the pump runs as smoothly
as possible. Watch the liquid discharging, or use a gauge, to detect pressure
fluctuations. Then adjust pressure to the unit as needed.
NOTE:
Self-relieving regulator 020-039-000 will make these adjustments easier.
SERVICE
When service is required on the dampener, remove the 8 capscrews. The wetted
chamber can be removed from the unit and exposes the diaphragm. Remove the
diaphragm. When reassembling the wetted chamber onto the air chamber, use
a torque wrench set at 70 in/lbs. (7.9 Newton meters)
