Flowserve FlowAct Series User Instructions page 6

No.
2 Confirm that the ambient temperature is not elevated
permanent above 160 °F (70 °C)(unless restricted by
the accessories).
3 Confirm that the air supply and instrument signal
lines are dry and clear of dirt and oil.
4 Confirm that the actuator and valve can be installed in
an upright position.
5 Confirm that the yoke and needed parts are available
for mounting on the valve.
6 Confirm that the valve stem and connecting parts
match.
7 Confirm the actuator has enough overhead clearance
to disassemble the valve from the pipeline.
8 If there is an unused air connection ensure that it is
properly sealed (see page 7).
9 Confirm removal of all hazards and ensure appropriate
protective measures are in place.
10 Confirm the valve / actuator is grounded in order to
prevent an electrical discharge.
11 Throttling control valves are typically equipped with
a pneumatic actuator and valve positioner. Refer to
the appropriate positioner manual for connections
and maximum air supplies.
After these requirements are confirmed the actuator can be installed and connected to the valve.
6
FlowAct Diaphragm Linear Actuator
Check
Table 1: Basic safety massages for installing the actuator
Possible malfunction or safety related incident
A sustained exceeding of the permissible ambient temperature
of 18 °F (10 °C) may halves the lifetime of non-metallic com-
ponents, such as diaphragms, O-rings and scraper rings.
At a minimum, the instrument air must conform to ISA- 7.0.01-
1996 (ISO 8573-1 Compressed Air - Class 2) requirement or
those of the accessory manufacturer.
Non-upright positioning may result in premature wear.
Yoke - connection dimensions see page 7
Yoke - connection dimensions see page 7.
Minimum clearance zone see page 8
The venting chamber of the pneumatic actuator is always
equipped with a venting plug. The pneumatic actuator types
253, 503 and 701 have two air connectors joining the pres-
sure-tight actuator housing. One of this air connectors is used
to control the actuator depending on the mounted accessories.
The remaining connector on the actuator (S) or on the yoke (T)
must be appropriately sealed. This feature is not applicable for
type 1502 and 3002.
none
Noncompliance may result in electrical discharges.
The air supply must be limited to less than 87 psig (6 bar)
per the actuator serial plate. An air filter regulator should be
installed to ensure that the supply pressure to the pneumatic
actuator does not exceed the air supply pressure indicated on
the serial plate.
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