- 5 -
- 5 -
After unpacking the product, check the following
points to ascertain that the product is exactly your
ordered one.
(1) if the model code on the nameplate is the same as
your order.
(2) if the product is not broken or bolts and nuts are not
loosened during transportation.
IWAKI auto-dampener the PDA-W series are
exclusively designed for the pneumatic driven bel-
lows pump to dampen the liquid pulsation.
The liquid discharged from the pump is transferred
to outlet through bellows. At this moment, the sup-
ply air is automatically adjusted by the pressure
regulating valve and this functions to dampen the
liquid pulsation.
Inlet
Pressure
adjusting valve
Pressure
adjusting valve
Air supply
Bellows
Outlet
Air exhaust
PDA - 20 W -
Series code
Capacity (Max. discharge capacity of corresponding pump)
20 : 20 L/min. 40 : 40 L/min. 80 : 80 L/min.
Special version
No symbol : Standard version With symbol : Special version
1. Unpacking and inspection
2. Outline of product
3. Model code
