3. Upon removing the control valve from the packaging, we
recommend that you:
• Promptly touch up any damage to the corrosion protection.
• Contact your shipper immediately to report any damage.
• Call your Flowserve representative if you experience
any problems.
Prior to installation of the valve, we require, that you check the following conditions to reduce the risk of malfunction and
safetyrelated incidents.
No.
Check
Possible malfunction or safetyrelated incident
1 Confirm that the nominal / operational data on the
serial plate matches the operational data of the
facility.
An operational mismatch can cause considerable damage to
the valve or may lead to a failure at the facility.
2 Confirm that the line is clear of dirt, welding slag,
chips, scale or other foreign material.
The risk of control valve damage due to foreign particles will be
reduced if a suitable strainer is installed upstream of the valve.
(Suggested mesh size of 0.004 inch (0.1 mm)
3 Confirm the piping flanges are coaxial, parallel, and
correspond with the face-to-face dimension of the
valve.
Incompatible sizing may result in excessive tension, valve
malfunction or flange connection leakage.
4 Confirm the piping is routed correctly and the valve is
free of additional piping forces.
Incorrect routing may result in leakage and / or potential valve
failure.
9 Installation
The control valve must be installed and commis sioned by qualified staff — personnel who are fa miliar with
the installation, commissioning and operation of this product and possess the rele vant qualifications in
their field of activity.
5 Refer to the MaxFlo 4 technical brochure for proper
clearances
6 Confirm there are suitable piping lengths upstream
and downstream of the valve installation site in order
to minimize a sudden pressure surge in the flow.
Absence of suitable piping lengths can create critical operating
conditions and cause unacceptable levels of noise and
vibration.
7 Confirm removal of all hazards and ensure appropriate
protective measures are in place.
none
8 Confirm flow direction to ensure the correct valve
installation. Flow direction is indicated by the arrow on
the valve body.
Improper flow direction causes critical changes to
operating conditions that may damage the control valve.
9 Confirm that the air supply and instrument signal
lines are dry and clear of dirt and oil.
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.
10 Confirm the valve is grounded in order to prevent an
electrical discharge.
Noncompliance may result in electrical discharges.
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.
Not enough clearance will make disassembly and
repairs more difficult.
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.
Table 1: Basic safety messages for installing the valve
5
MaxFlo 4 Control Valve FCD VLENIM0064-02-AQ – 09/16
flowserve.com
