Flo-Tite MPF155 User manual

IOM-MPF155 2018
Page 1
Flo-Tite Bottom Entry Series
Models MPF155
Flanged End Ball Valves
Installation, Operation and Maintenance Manual
Note: Before using a valve, read the entire IOM carefully and make sure you have a clear understanding of all
information inc l uded .
This manual describes the procedures for the safe and efficient installation, operation and maintenance of
Flo-Tite Flanged Series Ball Valves. Failure to follow the procedures in this manualmayresultin Flo-Tite
warranties being voided. Problems with the operation and maintenance of these valves should be dir ec t e d
t o the nearest Flo-Tite Representative.
TheFlo-Tite Flanged
Series are designed as one piecebody. Thisline of valves utilizesthe “free floating” ball
principle. Theball is not fixed, but is freeto move with the line pressure. Asa result, these valves are capable
of tight shut-off with the flow in either direction or dead-ended, regardless of the position of the valve in t h e
line. Thedownstream seat,which is opposite the pressurized side, of a closed valve must carry the load
exerted bythe line pressure on the ball, whilethe upstream seat is subject to little load or wear. For this
r e a s o n, it is sometimes possibleto increase useful seat life byturning the valve end-for-end in the pipeline.
INSTALLATION:
A.
Receiving and Preparation P r o c ed ur e
A1.
Remove shipping p r o t ec tio n
A2.Inspect the valve(s) for transportation damag e *
A3.Inspect the valve bore and remove any deb r is
A4. Cycle the valve and inspect the valve for smooth operation, size p e r m i t tin g
A5.Asshipped from the factory, valves may contain a siliconebased lubricant. This is for break-in and may
be removed ifit is objectionable for a particular application bydisassemblingand solvent washing.
*If transportation damage is found, immediately take pictures for record purposes and contact the in bo und
carrier to submit a claim.
B. Installation P r o c ed ur e
B1. General – The valve may be fitted in any position in the pipeline. Prior to installing the valve, the pipe o n
either side of the intended installation should be checked to be freeof dirt, debris, weld slag, etc. to p r e v en t
damage to the seats, seals and surfaceof the ball. Thepiping must also be freeof tension or c o m p re ss i o n .
WARNING – Never use the valve asa pipe supportor structural member.

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B2. Installation of the Flo-Tite Flanged
Series valves is accomplished byinserting the valve between flanges
attached to piping and supplied byothers and attaching the valve to the mating flanges with fasteners of t h e
size and type specified byindustry standards. Fasteners should be tightened in a “star”pa tt er n.
Caution – Ensure that mating
flanges are of the same size, type and pressure rating as the valve and that
fasteners are of the sizeand type approved for the flange.
B3.
Valves with actuators should be checked for actuator-valve alignment. Angular or linear mis a lignmen t
will result in high operational torque. Electric and/or pneumatic connections should be made in acco r d a n ce
with the correct actuator IOM instr u c t io n s .
C. OPERATION:
C1.Manual operation of the valve is accomplished byturning the handle ¼ turn (90 degrees).
*The valve is open when the handle is “in-line” with the valve or pipeline. The valve is closedwhen t h e
handle is “across” or perpendicular to the valve or pipeline.
C2.Flo-Tite Flanged
Series valves can be operated with either electricor pneumatic actuators. For
instr uctions on installation and operation, refer to the IOM for the correct ac t u a t o r .
C3.Flo-Tite Flanged
Series valves may include one of several different styles of limit switchesand
p osi tio n ers. 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 m a n a g e
any liquid retained in the valve body when disassemblingthe 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 asaprons,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 flushthe 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 sealmaterials. Repair kits
can be ordered from the localFlo-Tite Representative. This should be done prior to any disassembly work.
CAUTION -
Valves with actuators, limit switches or positioners should have these devices disassembled f r o m
the valve prior to disassemblingof the valve.
WARNING- Use
extreme caution disconnecting any electrical and/or pneumatic sources to the valve t o
protectagainst personal injury. Isolatethe valve actuator priorto disconnecting.
StemPacking
Stem seal leakage may be corrected without disassembly. Tighten the packing gland nuts one flatat a time
alternating between nuts, until leakage stops. If leakage continues, or the val v e ’ s operating torque becomes
excessive, the seals are worn and replacement of the packing will be necessary.
WARNING- Do not
remove packing glandwhilethe line is underpressure. Personal injury could occur.

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D.
Valve Disassembly-
WARNING – Use
extreme caution whenremovingthe flanged valve from the pipeline to prevent
personal injury thatmaybe caused by“cold springing” of the p i p i n g .
CAUTION – valves shall be adequately supported prior to unfastening the studs and nuts that hold the valve
in line and secured with liftingstraps or slings to hold the weight of the valve.
D1.
Remove the flange bolts and nuts and liftthe valve from the line for servicing. Note – care should be
taken to avoid scratching or damaging the flange gaskets. Damaged gaskets must be replaced prior to
r einstallingin the line.
D2. Safely placethe valve on a clean,secure and stablework surface. Protect the flange faces when handlin g
to prevent scratching and damage.
D3. Match mark the body and body end to insure correct alignment when the valve is reassembled.
D4. Remove body cap. One body sealand seat should come out with the body end .
D5. Theball may be removed byfirst placing the valve in the fully closedposition. Use a liftingstrap and
lifting device for safety purposes when the weight of the ball dicta t es
CAUTION – Use extreme care in handling the ball to avoid damage.
D6.
Remove the second seat and seal.
D7.
Remove Stem -
a.) 2” valves – Remove handle nut, handle, lock washer, Belleville washer, packing follower, packing protector,
stem packing, o-ring, packing protector and stem.
b.) 3 & 4 ” – Lose screw on handle and then r emove handle, snap ring, travel stopper, gland bolt, stop housing,
housing bolt, packing gland, lock washer, Belleville follower, packing protector, stem packing, o-ring, thrust
washer and stem.
The stem must be removed from the inside of the body. Gently tap the top of the stem with a
non-met allic
mallet. Thethrust washer should come out with the stem. Stem packing can now be removed. If a packing
pick is used to remove packing, care must be taken not to scratch any surface.
VisualInspection-
Clean and inspect all metal parts. It is not
necessary to replace the ball and stem unless the seating surfaces
have been damaged byabrasion or corrosion. Flo-Tite strongly recommends that allseats, seals and packing
be replaced whenever a valve is disassembledfor reconditioning. This is the surest protection against subse-
quent leakage after reassembly. Replacementparts are sold in kit form. Refer to the metal tag attached to t h e
side of the valve body to identifythe specific sealing materials used. Kitscan be obtained viathe localFlo-
Tite Distributor. Replacementparts should be purchased prior to valve disassembly. Required info r ma tio n
to purchase replacement parts include:
a. Linesize
b. Model designa tio n
c. Seat/seal materials – seestamping on metal tag attached to the valve body.
Valve Reassembly -
Note- the valve may be reassembled and operated dry when no lubricants are allowed in the system;
how ever, a light lubricant on the ball and stem will aid in assembly or reduce initial operating torque.
Lubri cantused must be compatiblewith the intended systemfluid.

IOM-F150F300-TB58 2018
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Install one new seat and sealin the body
cavity with the spherical curvature facingthe ball. Replace the s t em
in the reverseorder from above based on valve size, including reattaching the handle. Turn the handle to t h e
closedposition. This will align the stem tang and the ball slot. Slide the ball into position. Turn the h a n d le
t o the open position to help hold the ball in place. Install the second sealand seat into the body en d .
Placethe body sealgasketinto the shoulder counter-bore at the flange in the valve body. Using t h e
match marks to realign the body and body end, carefully placethe cap end back into the body. Install the cap
end nuts and tighten in a star pattern to the torque values specified below.
Note: Make sure ball is in closed position before tightening up the end connections.
WARNING- extreme care must be exercised duringtightening of the bodyend nuts to make surethat
complete engagement of studs with the body flange is maintained. There should be at leastone stud
thread exposedon each side.
Cycle the valve slowly, with a gentle back andforth motion to build gradually to afull quarter turn. By
cycling slowly, the newseatlips will conformto the seal shape againstthe ball. An initial fastturning
motion, atthis point, maycutthe seatsbeforethey have a chance to form the proper seal. Whenpossible
and practical, test the valve priorto reinstallinginto the p i pe line.
Reinstallation-
Carefully inspect the faces of both the valve flanges and the mating flanges to ensure they are clean and
un damaged. Placethe valve in the preferred position and support it from moving. Install a sealing gasket
b e tween each pair of flanges and reinsert the bolting and hand tighten. Secure the bolting to the
r e co mmended torque values in a star pattern to ensure that the gasketis compressed evenly around the entire
circumference.
Repa ir K i ts –
Repair kits typically consist of replaceable seats,
body seals and packing seals. Refer to the uni t
nameplate, as shown below, to confirm what
ma terials are currently installed.Contact your
local Flo-Tite Representativeto order and
receive t h e kits prior to any maintenance work.
Fl o-T it e ’ s marking systemfollows MSS SP-25-1998
Valve Markings - Casted into valve bodies include the following; Flo-Tite Name, Model Numbers, Body
Material, Valve Size, &Class Pressure Rating
All Flo-Tite valves have metal nameplates spot weldedto the valve body.
Standard TrimSoftParts Valve Side A
ID-Codes
Seat material Viton
O-r in g
Stem sealmaterial Body seal material
Flo-Tite Name
Flo-Tite Name Valve Side B
Valve Model
ANSI Class
VALVE - SOFT P A R T S
SEAT STEM SEALS BODY SEAL O-RINGS
TFM
F
TFM
F
TFM
F
VITON
V
CTFM
Y
CTFM
Y
CTFM
Y
EPDM
E
PTFE
T
RTFM
X
PTFE
T
PTFE
T
RPTFE
R
PTFE
T
RPTFE
R
BUNA
B
50/50
S
RPTFE
R
50/50
S
NONE
N
UHMWPE
U
50/50
S
UHMWPE
U
PEEK
P
UHMWPE
U
PEEK
P
Cavity Filled
C
PEEK
P
Graphite
G
Metal
M
Graphite
G
Kel-F
K
Kel-F
K
Body Material

IOM-F150F300-TB58 2018
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No.
Part List
1
Body
2
End Cap
3
Stem
4
Packing Gland
5
Packing Follower
6
Ball
7
Seat
8
Stem Packing
9
Packing Protector
10
Gasket
11
Thrust Washer
12
O-Ring
13
Anti-Static
14
Travel Stop
15
Snap Ring
16
Handle
17
Gland Bolt
18
Stop Housing
19
Housing Bolt
20
Body Stud
21
Body Nut
22
O-Ring
23
Set Screw
2.5” - 12” Valve
Component
Higher Temperature Requirements
Saturated steam services above 150 psi use either Super Tek III or S-Tek. Saturated steam services above 250 psig use metal seats.
Metal Seated Ball Valve will take full ANSI body metal material ratings
Please carefully review all important procedures in this manual. If anything is unclear, please feel free to
contact Flo-Tite directly.
Flo-Tite,I n c.
4815 West 5th St.
Lumberton, NC 28358
P. O.
Box 1293
Lumberton, NC
28359
Website: www .maxs e alinc.co m
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
F150 Size 3"