PSG Wilden XSD Series, Инженерия, эксплуатация и обслуживание

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All reciprocating pumps generate discharge pressure
fluctuation. The Equalizer
®
minimizes unwanted pressure
fluctuation by providing a supplementary pumping action.
This is accomplished by using a diaphragm as a separation
membrane within the Equalizer
®
to trap a given volume of
liquid on one side and pressurized air on the other.
When the fluid pressure falls in the system, the Equalizer
®
supplies additional pressure to the discharge line between
pump strokes by displacing fluid via diaphragm movement.
This movement provides the supplementary pumping
action needed to reduce pressure variation and pulsation.
The Equalizer
®
automatically sets and maintains the
correct air pressure matching the variations in liquid
flow or discharge pressure generated by the pump. A
shaft attached to the Equalizer
®
diaphragm triggers the
addition or removal of the air within the non-wetted side
of the Equalizer
®
. The Equalizer
®
automatically adjusts
to any pressure and/or flow setting of the pump with no
need for manual adjustment of the unit and/or system.
The Equalizer
®
has proven to be the cost effective choice
for protecting your liquid process system from unwanted
pulsation or pressure fluctuation. Contact your local Wilden
distributor for further information on the Equalizer
®
and
other pumping solutions.
A compressed air line attached to the air regulator body sets
and maintains pressure on the air side of the diaphragm. As
the reciprocating pump begins its stroke, liquid discharge
pressure increases which flexes the Equalizer
® diaphragm
inward. This action accumulates fluid in the liquid chamber
(see Phase 2) and the air regulator allows compressed air
to enter the air side. When the pump redirects its motion
upon stroke completion, the liquid discharge pressure
decreases and compressed air in the air side forces the
Equalizer
®
diaphragm to flex outward displacing the fluid
into the discharge line (see Phase 3). This motion provides
the supplementary pumping action needed to minimize
pressure fluctuation.
AIR
REGULATOR
BODY
AIR
REGULATOR
BODY
AIR
REGULATOR
BODY
LIQUID SIDE LIQUID SIDE LIQUID SIDE
DIAPHRAGM DIAPHRAGM DIAPHRAGM
AIR
SIDE
AIR
SIDE
AIR
SIDE
AIR
REGULATOR
BODY
AIR
REGULATOR
BODY
AIR
REGULATOR
BODY
LIQUID SIDE LIQUID SIDE LIQUID SIDE
DIAPHRAGM DIAPHRAGM DIAPHRAGM
AIR
SIDE
AIR
SIDE
AIR
SIDE
AIR
REGULATOR
BODY
AIR
REGULATOR
BODY
AIR
REGULATOR
BODY
LIQUID SIDE LIQUID SIDE LIQUID SIDE
DIAPHRAGM DIAPHRAGM DIAPHRAGM
AIR
SIDE
AIR
SIDE
AIR
SIDE
PHASE 1 PHASE 3 PHASE 2
WIL-19011-E-07
3 WILDEN PUMP & ENGINEERING, LLC
S e c t i o n 3
H O W I T W O R K S — D A M P E N E R
REV 10/11/04 WSA