Jordan Valve Mark 80 Series – Self Operated Temperature Regulator - Manual

3170 Wasson Road • Cincinnati, OH 45209 USA
Phone 513-533-5600 • Fax 513-871-0105
[email protected] • www.jordanvalve.com
I & M Mark 80
Installation & Maintenance Instructions for
Mark 80 Temperature Regulator
Warning: Jordan Valve Temperature Regulators must only be used, installed and repaired in accordance with these
Installation & 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.
Please read these instructions carefully!
Your Jordan Valve product will provide you with long,
trouble-free service if it is correctly installed and main-
tained. Spending a few minutes now reading these in-
structions can save hours of trouble and downtime later.
When making repairs, use only genuine Jordan Valve
parts, available for immediate shipment from the factory.
Ideal Installation
To protect the valve from grit, scale, thread chips 1.
and other foreign matter, ALL pipelines and piping
components should be blown out and thoroughly
cleaned before the installation process begins.
Shutoff valves, pressure gauges and by-pass piping 2.
should be installed as indicated in the Ideal Installa-
tion Schematic to provide easier adjustment, opera-
tion, and testing.
A line strainer should be installed on the inlet side 3.
of the valve to protect it from grit, scale and other
foreign matter. A 0.033 perforated screen is usually
suitable for this purpose. Line strainers are avail-
able from Jordan Valve.
For best control, 3’ 0” straight sections of pipe 4.
should be installed on either side of the valve.
In preparing threaded pipe connections, care 5.
should be exercised to prevent pipe-sealing com-
pound from getting into the pipelines. Pipe-sealing
compound should be used sparingly, leaving the
two end threads clean. Jordan uses, and recom-
mends, thread sealer Teflon ribbon.
The flow arrow on the valve body must be pointed 6.
in the direction of flow. Ideally, the valve should be
installed in the highest horizontal line of piping to
provide drainage for inlet and outlet piping, to pre-
vent water hammer, and to obtain faster response.
If possible, install a relief valve downstream from 7.
the valve. Set at 15 psi above the control point of
the valve.
In hot vapor lines, upstream and downstream pip- 8.
ing near the valve should be insulated to minimize
condensation.
In gas service, if the control pressure (downstream) 9.
is 25% of the inlet pressure or less, expand the
outlet piping at least one pipe size. A standard
tapered expander connected to the outlet of the
valve is recommended.
Where surges are severe, a piping accumulator is 10.
recommended.
On steam control applications, install a steam trap 11.
with sufficient capacity to drain the coil or condens-
er. Be sure to have a good fall to the trap, and no
backpressure. Best control is maintained if the coil
or condenser is kept dry.
For injection heating applications, the regulator 12.
should be installed above the maximum water level
in the tank, or a check valve should be used to pre-
vent water from backing up into the regulator.
For best regulation, the temperature regulator 13.
should be installed as closely as possible to the
unit in which the temperature is being controlled.
Bulb Installation
The Thermal System is a hermetically sealed unit con-
sisting of a sensing bulb, capillary tubing, protective
armor, and actuator assembly. This unit contains the
thermostatic charge that operates the temperature
regulator. Please do not tamper with it. In case the
charge is lost, the thermal system must be replaced
as a complete unit. It is not repairable in the field and
must be returned to the factory for evaluation.
Main Steam
Condensate
1. Shut off Valve
2. Pipe Union
3. Strainer and Drain Valve
4. Pressure Gauge
5. Jordan Regulator
6. Relief Valve
7. Thermal Bulb
Return Line
By-Pass Line
Line
Steam
Trap
3 4
1
1
2
1
2
1
4
R
6
7
5
PROTECT VALVES WITH LINE STRAINERS