WIL-19013-E-02
11
ISD820
Legend: ND = No Dampener; WD = With Dampener
This chart shows discharge head fluctuations for a diaphragm pump with and without a dampener. By reviewing the
variation in pressure, the level of dampening can be estimated for an application. For example, the head pressure
generated by a 51 mm (2
″
) pump operating at 6.89 bar (100 psig) air inlet pressure and 6.2 bar (90 psig) head
pressure varies between 2.3 bar (33 psig) and 6.4 bar (93 psig) resulting in a total pressure fluctuation of 4.1 bar (59
psig) for each stroke. When an ISD820/SZSS/TBL dampener is installed in the application, the head pressure varies
between 4.2 bar (61 psig) and 5.9 bar (85 psig) resulting in a pressure fluctuation of only 1.6 bar (23 psig).
PERFORMANCE
Summary of Contents for WILDEN PSG Equalizer ISD1520
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