Jordan Valve Mark ED & ET Series Globe Style Control Valve (1-6) - Manual

I
ntroductIon
Contained in this manual are installation instructions,
maintenance and parts information for the 1 through
6-inch Mark E Series, Mark ED and Mark ET Globe
Style Control Valves. Refer to the appropriate manuals
for instructions for the accompanying actuator, posi-
tioner and additional accessories.
Only trained or experienced personnel should carry
out the operation and installation of all pressure equip-
ment. If you have any questions regarding the equip-
ment, contact your Jordan Valve Controls representa-
tive.
I
nstallatIon
1. Before installing a Mark ED or ET Series valve
carefully inspect for damage that
may have occurred in shipment.
2. Remove all welding slag, pipe scale and any
other foreign matter by cleaning out the lines
before installation.
3. Install the valve so that the flow direction arrow
on the body coincides with the actual process
flow through the valve.
4. Use accepted piping practices when install-
ing the valve. Use a suitable gasket between
pipeline flanges and valve body.
5. Although the control valve can be installed in
any position, the typical installation has the
actuator vertical above the body.
6. Installing a conventional 3-valve bypass
around the body will allow for continuous op-
eration during maintenance and inspection.
7. Mark E Series valve bodies are rated at 150,
300 and 600 lb. ANSI. Be sure not to install
the valve in any system where working pres-
sures are greater than those specified in the
standards.
M
aIntenance
Warning:
To avoid damage to the process system or personal
injury, isolate the valve from the system and relieve
any pressure contained within prior to disassem-
bly. Disconnect any operating lines providing air
pressure, control signals or electrical power to the
actuator.
Disassembly
Except where indicated, refer to Figure 1 for part de-
scriptions used in the following procedure.
1. With the actuator disconnected and removed
from the body, remove the hex nuts, (key 15,
figure 8).
2. Remove the bonnet with the valve plug and
stem.
3. Loosen the packing flange nuts (key 5, fig-
ure 7) and remove the valve plug and stem
from the bonnet. If the valve stem needs
replacement, punch out the groove pin and
unscrew the stem. If the valve plug needs
replacement, a new valve plug and stem as
sembly is required.
Warning: Do not use an old stem with a new valve
plug. Using an old stem requires drilling a new hole
for the groove pin and as a result, the integrity of
the stem is weakened.
4. If desired you may disassemble the internal
parts of the bonnet. To replace the Packing,
see instructions titled “Packing Replacement”
in this manual.
Warning: The portion of the cage which is exposed
provides a guiding surface. Ensure that this sur-
face is not damaged during disassembly or mainte-
nance. If the cage is seized in the body, use a rub-
ber mallet to strike the exposed portion at varying
points around its circumference.
3170 Wasson Road • Cincinnati, OH 45209
Phone 513.533.5600 • Fax 513.871.0105 (f)
[email protected] • www.jordanvalve.com
I & M Mark ED & ET Series 1-6 Inch
Installation & Maintenance Instructions for the
Mark ED & ET Series 1-6 Inch Globe Style Control
Valve
Warning: Jordan Valve Control Valves must only be used, installed and repaired in accordance with these Installa-
tion & Maintenance Instructions. Observe all applicable public and company codes and regulations. In the event
of leakage or other malfunction, call a qualified service person; continued operation may cause system failure or
a general hazard. Before servicing any valve, disconnect, shut off, or bypass all pressurized fluid. Before disassem-
bling a valve, be sure to release all spring tension.