Masoneilan 35002 Series Camflex II Instruction Manual | 4
Copyright 2020 Baker Hughes Company. All rights reserved.
Note: If a flanged Camflex II is being installed and the
distance between flanges is established by ANSI or DIN,
spool pieces (spacers) are inserted between the line
flange and the valve body flange. Gaskets and valve
bolting are then installed and torqued using standard
flange and line bolting criteria.
D.
For flangeless valves, refer to Figure 23 and determine the
correct size and quantity of bolts to be used for the valve and
flange rating.
E.
If the valve is to be installed in a horizontal position, install
the lower flange bolting to provide a cradle, which will help
support the valve while installing the remaining bolts.
F.
Place the valve in the line.
G.
Select and install correct gaskets.
Note: Spiral wound gaskets, suitable for service
conditions are recommended.
H.
Insert remaining flange bolting ensuring that the bolts align
with the special bosses on the body, which assure the valve
is centered in the line and also prevent rotation.
Note: For certain flange standards, through bolting is
not possible because of the valve body neck or bonnet.
To accommodate flange bolting, guide arms with
threaded holes or slots are provided on the valve body
to receive flange bolts (refer to Figure 22).
I.
Tighten flange bolts evenly and firmly.
If the valve is to be insulated, do not insulate the
valve bonnet.
Note: If the valve is equipped with manual handwheel,
it may now be placed in service.
6. Air Supply Piping
Air is supplied to the actuator through the 1/4" NPT tapped
connection in the diaphragm case. Refer to Figure 14 to
determine the correct supply pressure and tubing size, then
connect air supply piping.
Do not exceed maximum air pressure indicated. Per-
sonal injury and equipment malfunction could result.
Note: When the valve is equipped with regulators or other
accessories supplied by Baker Hughes, only connections
to those accessories are required since the piping to the
actuator is connected at the factory. Some valves equipped
with electrical accessories will require appropriate wiring.
Refer to manufacturer’s instructions for correct wiring
information.
7. Placing in Service
With the valve properly installed in the line and all air or electrical
service connected, it is recommended that the valve be run
through one cycle to ensure proper functioning. Proceed as
follows:
A.
Back off the handwheel (53) so that it will not interfere with
the operation of the valve and tighten the handwheel lock
(52).
Note: If the valve is equipped with the optional limit stop
(77), it should also be backed off to prevent interference
with the operation of the valve.
B.
Apply correct air pressure to the actuator.
Note: Valve should function smoothly and with
maximum pressure, the valve indicator (6) should show
full open or full close depending on valve mode.
C.
Relieve air pressure and return valve to normal mode.
D.
Gradually open process lines to place the valve in service.
E.
Check for leaks. Repair as required.
Always ensure process pressure, air pressure and
electrical service are off and the valve is isolated and
relieved of pressure before performing maintenance
on the valve.
F.
If desired, the handwheel may be used as a limit stop. Set
in desired position and lock.
G.
If the optional limit stop (77) is used, set and tighten locknut.
8. Disassembly
8.1 Actuator Removal From Body S/A
(Refer to Figures 16 and 17)
Maintenance required on the internal components of the valve
or re-orientation of the actuator and body, requires that the
actuator and yoke be removed from the valve. On the size 6,
7 and 9 actuators, for ease of handling and reassembly, it is
recommended that the spring barrel be removed from the yoke
and then the yoke separated from the valve body.
Prior to performing maintenance on the valve, isolate
the valve, vent the process pressure and shut off
supply and signal air lines to the actuator.
Note: If the valve will be reassembled in the same orientation,
it is recommended that the body to yoke orientation and the
actuator to yoke orientation be marked in relation to each
other. This will simplify reassembly.
A.
If required, remove the valve from the line.
B.
Remove rear cover (29) and front cover (32) by removing
the two cover screws (30).
C.
Remove bottom cover (11) and spring barrel boss cover
(58).
