Installation - Flowserve MaxFlo4 User Instructions

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.
Prior to installation of the valve, we require, that you check the following conditions to reduce the risk of malfunction and
safety­related incidents.
No.
1 Confirm that the nominal / operational data on the
serial plate matches the operational data of the
facility.
2 Confirm that the line is clear of dirt, welding slag,
chips, scale or other foreign material.
3 Confirm the piping flanges are coaxial, parallel, and
correspond with the face-to-face dimension of the
valve.
4 Confirm the piping is routed correctly and the valve is
free of additional piping forces.
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.
7 Confirm removal of all hazards and ensure appropriate
protective measures are in place.
8 Confirm flow direction to ensure the correct valve
installation. Flow direction is indicated by the arrow on
the valve body.
9 Confirm that the air supply and instrument signal
lines are dry and clear of dirt and oil.
10 Confirm the valve 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.
Check
Table 1: Basic safety messages for installing the valve
MaxFlo 4 Control Valve FCD VLENIM0064-02-AQ – 09/16
Possible malfunction or safety­related incident
An operational mismatch can cause considerable damage to
the valve or may lead to a failure at the facility.
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)
Incompatible sizing may result in excessive tension, valve
malfunction or flange connection leakage.
Incorrect routing may result in leakage and / or potential valve
failure.
Not enough clearance will make disassembly and
repairs more difficult.
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.
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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