SMC Networks PA3000 Series, Manual, Page: 7 / 29

Mounting posture of the pump is set with the mounting bracket facing downward. Air to be supplied to the air supply port <AIR SUP>
should be cleaned and filtered through AF filter, etc. Air with foreign matter or drainage etc. will have negative effects on the built-in sol-
enoid valve and will lead to malfunction. When air needs additional purification, use a filter (Series AF), and a mist separator (Series
AM) together.
Maintain the proper tightening torque for fittings and mounting bolts, etc. Looseness can cause problems such as fluid and air leaks,
while over tightening can cause damage to threads and parts, etc.
<Starting and Stopping> Refer to circuit example (1)
1. Connect air piping to the air supply port <AIR SUP> and connect piping for the fluid to be transfered to the suction port <FLUID IN>
and the discharge port <FLUID OUT>.
2. Using a regulator, set the pilot air pressure within the range of 0.2 to 0.7 MPa. Then, the pump operates when power is applied to the 3
port solenoid valve of the air supply port <AIR SUP>, the sound of exhaust begins from the air exhaust port <AIR EXH> and fluid flows
from the suction port <FLUID IN> to the discharge port <FLUID OUT>.
At this time, the ball valve on the discharge side is in an open state. The pump performs suction with its own power even without pri-
ming. (Dry state suction lifting range: max. 1 m) To restrict exhaust noise, attach a silencer (AN200-02: option) to the air exhaust port
<AIR EXH>.
3. To stop the pump, exhaust the air pressure being supplied to the pump by the 3 port solenoid valve of the air supply port <AIR SUP>.
The pump will also stop if the ball valve on the discharge side is closed.
<Discharge Flow Rate Adjustment>
1. Adjustment of the flow rate from the discharge port <FLUID OUT> is performed with the ball valve connected on the discharge side or
the throttle connected on the air exhaust side. For adjustment from the air side, use of the silencer with throttle ASN2 (port size 1/4)
connected to the air exhaust port <AIR EXH> is effective. Refer to circuit example (1).
2. When operating with a discharge flow rate below the specification range, provide a by-pass circuit from the discharge side to the suc-
tion side to ensure the minimum flow rate inside the process pump. With a discharge flow rate below the minimum flow rate, the pro-
cess pump may stop due to unstable operation. Refer to circuit example (2). (Minimum flow rates: PA3000 1
l
/min, PA5000 5
l
/min)
<Reset Button>
When the pump stops during operation, press the reset button. This makes it possible to restore operation in case the switching valve be-
comes clogged due to foreign matter in the supply air.
Operation
Circuit example (1)
Air filter
Ball valve
Process Pump
Process Pump
Bypass
Strainer
Silencer Throttle
Transfer fluid
AIR
SUP
AIR
EXH
FLUID
OUT
FLUID
IN
Air supply
Regulator
3 port
solenoid valve
Circuit example (2)
Piping diagram
Discharge port
FLUID OUT
Pilot air supply port
AIR SUP
Silencer
Option
Pilot air exhaust port
AIR EXH
Suction port
FLUID IN
Caution
Piping and Operation: Automatically Operated Type
Reset button
For related products, refer to page 728 and 729.
675
Series
PA
Process Pump
Automatically Operated Type
PA
PAP
PAX
PB
PAF
PA
첸
PB