Flo-Tite F150 Installation Operation & Maintenance

DESIGN
Split body, two-piece construction, allows ease in maintenance of valve ball and seat, without special tools. This line of valves
utilizes the "free floating" ball principle. The ball is not fixed, but is free to move with the line pressure. As a 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 the line. The
downstream seat, which is opposite the pressurized side of closed valve must carry the load exerted by the line pressure on the ball,
while the upstream seat is subject to little load or wear. For this reason, it is sometimes possible to increase useful seat life by
turning the valve end-for-end in the pipeline.
USE
Maximum results and long life of valves can be maintained under normal working conditions and in accordance with pressure/
temperature chart.
MANUAL OPERATIONS
The opening and closing of the valve is done by turning the handle a ¼ turn (90 degrees)
The valve in open position: the handle is in-line with the valve or pipeline.
The valve in closed position: the handle is across or perpendicular to pipeline.
AUTOMATED OPERATION
Valves with actuators should be checked for actuator-valve alignment. Angular or linear misalignment will result in high opera ­
tional torque.
GENERAL INFORMATION FOR ON-SITE INSTALLATION
The valve may be fitted in any position on the pipeline. Before installing the valve, the pipe should be clean of dirt, burrs and
welding residues, or you will damage the seats and ball surface.
DISASSEMBLY & CLEANING PROCEDURES
If the valve has been used to control hazardous media, it must be decontaminated before disassembly. It is recommended that the
following steps are taken for safe removal and reassembly.
1. Remove the line pressure
2. Place the valve in half-open position and flush the line to remove any hazardous material from valve.
3. All persons involved in the removal and disassembly of the valve should wear the proper protective
clothing, such as face shield, gloves, apron, etc.
As shipped from the factory, valves contain a silicone based lubricant. This is for break-in and may be removed, if it is objectionable
for a particular application, by disassembling and solvent washing.
DISASSEMBLY FOR SEAL & PACKING
Stem seal leakage may be corrected without disassembly. Tighten the packing gland nuts until leakage stops. If leakage continues
or valve's operating torque becomes excessive, the seals are worn and replacement will be necessary. WARNING: do not remove
packing gland while line is under pressure! Begin with the valve partially open in a depressurized line.
1. Remove the flange bolts and nuts and lift valve from line for servicing. NOTE: care should be taken to avoid scratching or
damaging serrated gasket. These valves can be heavy depending on what size you are repairing. They should be adequately
supported before removal from the line has begun.
2.
Loosen handle set screw and remove handle and stop plate. Next, remove gland nuts, gland flange and gland.
3. Remove body end nuts, using proper wrench size. Lift off body end. One seat should come out with body end.
4. Remove body seal.
5. To take out the ball, rotate stem so ball is in fully closed position. Lift ball from body, using a strap and lift device, if necessary.
NOTE: extreme caution should be taken to avoid damage to the ball.
6. Take out the other seat.
7. Stem must be removed from inside the body. (tap on the top of stem with rubber coated tool should loosen it. The thrust
washer should come out with the stem. Then remove the stem packing.)
Installation, Operation & Maintenance
F150 and F300 2-Piece Ball Valves
(F150, F300)
IOM-F150