SMC Networks PA3000 Series Manual Download Page 24

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<Starting and Stopping> Refer to circuit example (1)
1. Connect air piping to the air supply port <AIR SUR> and connect piping for the fluid to be transferred 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
priming. (Dry state suction lifting range: max. 2 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

suction side to ensure the minimum flow rate inside the process pump. With a discharge flow rate below the minimum flow rate, the
process pump may stop due to unstable operation. Refer to circuit example (2). (Minimum flow rates: PAX1000 0.5

/min)

<Reset Button>
1. When the pump stops during operation, press the reset button. This makes it possible to restore operation in case the switching valve

becomes clogged due to foreign matter in the supply air. Maintenance is necessary if the reset button needs to be pressed frequently.

Operation

Piping: Automatically Operated Type, Built-in Pulsation Attenuator

Piping diagram

Pilot air supply port

AIR SUP

Pilot air exhaust port

AIR EXH

Silencer

(Optional)

Reset button

Discharge port

FLUID OUT

Suction port

FLUID IN

PROCESS PUMP

Caution

Mounting posture of the pump is set with the bottom surface at the bottom. Air to be supplied to the AIR SUP port should be cleaned and
filtered through AF filter, etc. Air with foreign matter or drainage etc. will have negative effects on the built-in switching 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.

Air filter

Process pump

PAX1

쏔

Strainer

Silencer

Throttle

Transfer fluid

AIR

SUP

AIR

EXH