11-13
11-6. Application to existing control valves
If Certified ISO 15848-1 low emission gland packing is used for an existing control valve,
please note the following:
If there are scratches on the inner surface of the stuffing box or the surface of the stem of
the current valve, the specified seal performance of Certified ISO 15848-1 low emission
gland packing may not be achieved. If scratches are found, replace the affected parts with
new ones.
Check if Certified ISO 15848-1 low emission gland packing can be used for the current
valve and actuator by referring to the specification sheet for Certified ISO 15848-1 low
emission gland packing (SS2-SSL100-0100) or by contacting us. Because the resistance to
sliding of Certified ISO 15848-1 low emission gland packing is greater than general gland
packing systems, it may not be possible to use Certified ISO 15848-1 low emission gland
packing with the current actuator. In addition, if it is used with the actuator, the shutoff
differential pressure will decrease. If supply air pressure to the actuator is increased in
order to meet the required shutoff differential pressure, check that the specifications for the
pressure gauge of the positioner and pressure reducing valve are satisfied and that there is
no effect on the pressure at the source.
Check if the operating temperature range of the gland packing (main packing and adapter
packing) of Certified ISO 15848-1 low emission gland packing meets the temperature
requirements of the current control valve. Attention is needed for expanded graphite
Certified ISO 15848-1 low emission gland packing in particular, because the operating
temperature high limit of the main packing used for this packing system is lower than that
of general expanded graphite packings.
11-7. Disposal
If this product is no longer needed, dispose of it appropriately as industrial waste, in
accordance with local regulations. Do not reuse all or any part of it.
To Next Page
Loading...
