Flowserve Valtek FlowTop V750 User Instructions page 7

Valtek FlowTop
No.
6 Confirm the actuator has enough overhead clearance
to disassemble the plug from the valve body.
Removal Space
Actuator
Code
mm
253
503 180
701
Table 2: Overhead clearance dimensions
7 Confirm there are suitable straight piping run up-
stream and downstream of the valve installation site in
order to minimize a sudden pressure surge in the flow.
8 Confirm removal of all hazards and ensure appropriate
protective measures are in place.
9 Confirm flow direction to ensure the correct valve
installation. Flow direction is indicated by the arrow on
the valve body.
10 Confirm that the air supply and instrument signal
lines are dry and clear of dirt and oil.
11 Confirm the valve is grounded in order to prevent an
electrical discharge.
12 Confirm that the bonnet bolting of valves used in
NACE MR 0175 / MR 0103 or ISO 15 156 applications
are ventilated.
13 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 valve can be installed and connected in the piping.
FCD VLEEIM1485-04 (EN/A4) November 2022
Check
≈ R
inch mm inch
260 10.2
7.1 290 11.4
330 13.0
Table 1: Basic safety massages for installing the valve
Possible malfunction or safety related incident
≈ R
Figure 6: Overhead clearance drawing
Absence of suitable piping lengths can create critical operating
conditions and cause unacceptable levels of noise and
vibration.
none
Improper flow direction causes critical changes to operating
conditions that may damage the control valve.
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.
Noncompliance may result in electrical discharges.
Do not cover or insulate over bonnet flange bolting !
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 WW or EU serial plate.
Fa ce to fa ce
s
d im en si o n
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