Flo-Tite MPF155 Panduan Pemasangan, Pengoperasian, dan Pemeliharaan - Halaman 2

Jelajahi secara online atau unduh pdf Panduan Pemasangan, Pengoperasian, dan Pemeliharaan untuk Unit Kontrol Flo-Tite MPF155. Flo-Tite MPF155 5 halaman. Flo-tite bottom entry series, flanged end ball valves

Halaman Cetak
B2. Installation of the Flo-Tite Flanged Series valves is accomplished by inserting the valve between flanges
attached to piping and supplied by others and attaching the valve to the mating flanges with fasteners of the
size and type specified by industry standards. Fasteners should be tightened in a "star" pattern.
Caution
– Ensure that mating flanges are of the same size, type and pressure rating as the valve and that
fasteners are of the size and type approved for the flange.
B3. Valves with actuators should be checked for actuator-valve alignment. Angular or linear misalignment
will result in high operational torque. Electric and/or pneumatic connections should be made in accordance
with the correct actuator IOM instructions.
C. OPERATION:
C1. Manual operation of the valve is accomplished by turning the handle ¼ turn (90 degrees).
*The valve is open when the handle is "in-line" with the valve or pipeline. The valve is closed when the
handle is "across" or perpendicular to the valve or pipeline.
C2. Flo-Tite Flanged Series valves can be operated with either electric or pneumatic actuators. For
instructions on installation and operation, refer to the IOM for the correct actuator.
C3. Flo-Tite Flanged Series valves may include one of several different styles of limit switches and
positioners. Please refer to the appropriate IOM for each device.

MAINTENANCE:

CAUTION
– Ball valves can trap fluid in the ball cavity when closed. Be prepared to capture and manage
any liquid retained in the valve body when disassembling the valve.
WARNING
– If the valve has been in hazardous fluid service, review applicable MSDS sheet and
decontaminate the valve before disassembly. All persons involved with the disassembly should wear
personal protective equipment such as aprons, gloves, face shield, etc. to prevent personal injury.
Access to the valve internals starts with relieving pressure in the pipeline. Turn the valve handle to the 45
degree, half open, position and flush the line, when applicable, to remove any hazardous material from the line.
Consult the metal tag attached to the valve body to determine the correct seat and seal materials. Repair kits
can be ordered from the local Flo-Tite Representative. This should be done prior to any disassembly work.
CAUTION
- Valves with actuators, limit switches or positioners should have these devices disassembled from
the valve prior to disassembling of the valve.
WARNING- Use extreme caution disconnecting any electrical and/or pneumatic sources to the valve to
protect against personal injury. Isolate the valve actuator prior to disconnecting.
Stem Packing
Stem seal leakage may be corrected without disassembly. Tighten the packing gland nuts one flat at a time
alternating between nuts, until leakage stops. If leakage continues, or the valve's operating torque becomes
excessive, the seals are worn and replacement of the packing will be necessary.
WARNING- Do not remove packing gland while the line is under pressure. Personal injury could occur.
IOM-MPF155 2018
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