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10.2 Warning and caution for maintenance
Warning
(1) Do not touch the valve or piping directly with bare hands
*Failure to follow this notice may result in burns
(2) Do not disassemble the valve unreasonably
*Disassembling the valve at your discretion may affect the original performance
*In case of disassembling, please be sure to ask our staff
Caution
(1) In case of no operation for a long period of time or regular inspection, discharge
internal pressure from the valves, lines, and equipment completely.
* The scale or foreign matter inside of the pipe may cause malfunction.
(2)
After having the long term suspension, please do the inspection before re-operation.
10.3 Daily inspection
Please check the leakage from the pipe and the body portion (leak sound, etc.) following
items during operation of facilities.
10.4 Regular inspection （1 time／Month）
(1)
Please make sure that there is no
side of the
product.
(2)
Giving a false signal of 4-20mA DC to positioner, when it is changed by the opening
signal from 0 to 100%, please make sure that the product is operated by the opening
degree of 0 to 100%
*If the abnormality is found, please contact
10.5 Replacing gaskets, packings and positioners
For disassembling the product by replacing the gasket, packing, or positioner, please
refer to SM-741 "CT-1 Disassembly and Assembly Procedure".
Although it varies greatly depending on the use conditions, the recommended period for
replacing gaskets and packings is about two years.
looseness on the installed piping of inlet and outlet
us.
-18-
■ EPDT-318a ■
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