8
3. Use appropriate protective equipment.
When touching the process pump for maintenance, wear protective equipment such as gloves
which are compatible with the fluid used. There is a risk of chemical burns.
4. Do not disassemble the product, as disassembly will invalidate the product's
warranty.
When disassembly is necessary, please consult with SMC or our distributor.
5. Drain discharge
Operating the system with drain accumulated in the equipment or piping may cause malfunction
of the equipment, splash over into the downstream side, or unexpected accident. Periodically
discharge drain from components including the air filter.
6. Caution when transferring a high-temperature fluid
The product itself will become hot due to the high-temperature fluid. Since touching the product
directly may cause burns, allow sufficient time for the product to cool down when transferring a
high-temperature fluid. The measurement of the product temperature is recommended to confirm
the safety of the system before performing work.
Caution
1. Caution when transferring a highly penetrating liquid
When transferring a liquid that is highly penetrating through fluoropolymer, components of the
transfer liquid may enter the openings inside the equipment. Also, they may become attached to
the external surface of the equipment. In this case, take the same measures as handling the
transfer liquid.
2. Service life of diaphragm and maintenance of consumable items
- Disassembly of the process pump is not recommended. Replacement with new process pump
based on the reference life of the diaphragm is recommended.
- If the operating cycle of the process pump exceeds the service life of diaphragm, the diaphragm
may be damaged due to deterioration. If it is damaged, the fluid will leak from the pilot air
exhaust port and the air will blow out into the liquid circuit. Consider the pump operation
(breathing, decline of discharge pressure, etc.) and the reference service life of diaphragm, and
replace with new process pump or conduct necessary maintenance as early as possible.
- Items such as check valves may experience malfunction earlier than the diaphragm depending
on the operating conditions. Please replace with new process pump or conduct periodic
maintenance.
- When conducting maintenance, obtain the necessary parts indicated in the maintenance parts
list (Refer to P.15), and perform work according to the maintenance and operation manuals.
[Calculation of reference service life (days) of diaphragm]
The amount of discharge per cycle for the air operated type varies depending on the piping
resistance. Therefore, calculate the service life (days) using the operating frequency of a
solenoid valve.
Reference Service
life (days)
=
A (reference number of cycles in service life)
Operating frequency of solenoid valve (Hz) x 60 (sec)
x Operating time per day (hour) x 60 (min)
Model
Operating
conditions:
Method
Diaphragm
material
Amount
of discharge
per cycle
Reference number
of cycles
in service life A
Volume
inside pump
(wetted part)
PA(P)3313
Air operated
type
PTFE
Approx. 0.037 L
50 million cycles
Approx. 85 mL
3. Please understand the following concerning the inability to repair the product.
To enable the process pump to be used with various fluids, please note that from the aspects of
ensuring worker safety and also the facilities, SMC is unable to carry out repair.
