heating of other piping. Fine adjustment is not possible.
3.
When installing heater accessories or mounting a heater, check insulation resistance at the
actual operating temperature. A current leakage breaker or fuse should be installed.
4.
If the valve is to be insulated, only the body should be insulated, excluding the bonnet part.
5.
In models with a heater, when the heater is in operation, the entire valve becomes hot.
Be careful not to touch the valve with bare hands, as burns will result.
6.
The heater temperature will initially decrease several % after the heating starts and then
gradually becomes stable. (The heater temperature may decrease approximately 5 to 10%
due to individual differences.)
1.
Before mounting, clean the surface of the flange seal and the O-ring with ethanol, etc.
2.
There is an indentation of 0.1 to 0.2mm designed to protect the flange seal surface.
Be careful when handling the product to prevent any damage to the seal surface .
If the fluid or reaction product (deposit) may cause the valve to become unsafe, the valve
should be disassembled, cleaned and re-assembled by an operator who has sufficient
knowledge and experience (e.g. a specialist).
1.
When removing deposits from the valve, take care not to damage any part of it.
2.
Replace the bonnet assembly when the valve is approaching the end of its service life.
* For details regarding endurance cycles, please reference Section 7 of this Operation
manual titled Period and scope of warranty. (pages 13)
3.
If potential damages are suspected prior to the end of the service life, perform maintenance
earlier than noted. If there are scratches, dents or cracks on the seals (bellows or valve) due
to handling or operating conditions, please replace the parts with new ones.
Refer to Chapter 2, “Product Specific Precautions 2” (P. 6) and Chapter 4, “Construction”
(P.9) for maintenance parts. Parts with the indication of "Maintenance part" can be replaced.
4.
SMC specified parts should be used for service. Refer to the Construction / Maintenance
parts table.
5.
When removing the valve seal and external seal, take care not to damage the sealing
surfaces. When installing the valve seal and external seal, be sure that the O-ring is not
twisted. (Refer to Section 8 Parts Replacement Procedure (pages 13 to 16) for details.)
Piping
Caution
Maintenance
Warning
Caution
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