Installation - Fisher 6492HTM Instruction Manual

Type 92C
16A1547-A
A2523-1

installation

Personal injury, equipment damage,
or leakage due to escaping steam
or bursting of pressure-containing
parts may result if this regulator is
overpressured or is installed where
service conditions could exceed the
limits given in Specifications section on
page 2 and on the appropriate nameplate,
or where conditions exceed any ratings
of the downstream piping or piping
connections. To avoid such injury or
damage, provide pressure-relieving or
pressure-limiting devices to prevent
service conditions from exceeding
those limits. Type 92C regulators and
their installations should be checked
for compliance with all applicable codes
such as the anSi B31.1-1977 Power
Piping standard and the aSME Boiler and
Pressure Vessel code.
Use a qualified personnel when installing, operating,
and maintaining a Type 92C regulator. Make sure
that there is no damage to or foreign material in the
regulator and that all tubing and piping are clean
and unobstructed. Install the regulator so that flow
direction matches the arrow marked on the regulator
6
LOaDing REgULaTOR
STRainER
Figure 4. Typical Pressure-Loaded Type 92C Regulator Installation
BLEED RESTRiCTiOn
TYPE 92C REgULaTOR
BY-PaSS LinE
body. Some typical Type 92C regulator installations
are shown in Figures 3 and 4.
The Type 92C regulator may be installed in any
orientation. However, the regulator should not be
installed in a tall vertical pipeline where condensate
could collect and create a pressure head affecting
regulator performance.
Apply steam-compatible pipe compound to the
external pipeline threads. Then, using acceptable
piping procedures, install the regulator into
the pipeline.
If continuous operation of the system is required during
inspection and maintenance, install a three-valve
bypass around the regulator. If the flowing medium
contains solids, install a proper size strainer upstream
of the regulator.
Pilot-Operated Regulator
The Type 6392 pilot has three 1/4 NPT connections
located in the pilot body. For proper operation of a pilot-
operated regulator, the pilot supply and the regulator
loading connections should be installed parallel to
the flow direction arrow marked on the pilot body
as shown in Figure 10, and the downstream control
line should be installed in the pilot body connection
as shown in Figures 3 and 10. If a pilot-operated
regulator is ordered, the pilot supply and the regulator
loading connections will be made at the factory.
OPTiOnaL PiPing
FOR STEaM LOaDing